Patent US5300942A successfully refreshed from Google Patents.
US5300942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High efficiency light valve projection system with decreased perception of spaces between pixels and/or hines
Assignee: Projectavision Inc
•
Filing: 1991-02-21
•
Granted: 1994-04-05
•
Expires: 2011-02-21
Abstract
Abstract A light valve such as an active matrix LCD between crossed polarizers, utilizing, for instance, individual transistors to control each "pixel area" of the LCD and storage elements to store video signal data for each pixel, with optically shielded "dead spaces" between pixels to eliminate electric field crosstalk and non-information-bearing light bleed through, is illuminated with a bright independent light source which creates a video image projected via specialized projection optics onto an internal or external screen without distortions, regardless of the angle of projection onto the screen. Use of heat sinks, IR reflective coatings, heat absorbing optics, optional fluid and a thermistor controlled pixel transistor bias voltage injection servo circuit stabilizes image performance, maintaining accurate color and contrast levels as the LCD changes temperature. In one embodiment of the invention, use of a multi-color LCD with a stepped cavity, producing different thicknesses of LCD for the different wavelengths that pass through it, allows a linear correspondence between the wavelengths passing through the LCD to produce true black, high contrast and CRT-like color rendition. A dichroic mirror arrangement is used to overlap differently colored pixels in the projected image. Use of lens arrays to expand pixels, where necessary, eliminating spaces between pixels, creating a continuous image with no apparent stripes or dots. A special venetian-blind type of screen is also disclosed and methods for using the system to view three-dimensional video are also explained.
Inventors
- 👤 Eugene Dolgoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:59
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/133382; G09; G09G; G09G3/00; G09G3/001; H; H04; H04N; H04N13/00; H04N13/30; H04N13/302; H04N13/305; H04N13/332; H04N13/337; H04N13/363; H04N9/00; H04N9/12; H04N9/31; H04N9/3102; H04N9/3105; H04N9/3108; H04N13/10; H04N13/106; H04N13/111; H04N13/189; H04N13/194; H04N13/20; H04N13/204; H04N13/239; H04N13/261; H04N13/286; H04N13/31; H04N13/324
Claims Analysis
Total Claims: 177
Claim 1
Independent Claim
197 words
An electronic image projection system, comprising: a light source; a light valve means for forming an image on which information can be present as pixels or lines, said light valve means including one of: a single light valve having perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines and real dead spaces between pixels, or lines defined by actual non-information bearing spaces between pixels or lines, and a plurality of light valves having at least one of real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines and perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines; means for projecting the image formed by said light valve means onto a viewing area; and means to substantially eliminate perception of perceived dead spaces and real dead spaces between pixels or lines in the image projected by the single light valve and to substantially eliminate perception of at least one of real dead spaces between pixels or lines and perceived dead spaces in the image projected by the plurality of light valves.
Claim 2
Dependent Claim
197 words
An electronic image projection system, comprising: a light source; a light valve means for forming an image on which information can be present as pixels or lines, said light valve means including one of: a single light valve having perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines and real dead spaces between pixels, or lines defined by actual non-information bearing spaces between pixels or lines, and a plurality of light valves having at least one of real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines and perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines; means for projecting the image formed by said light valve means onto a viewing area; and means to substantially eliminate perception of perceived dead spaces and real dead spaces between pixels or lines in the image projected by the single light valve and to substantially eliminate perception of at least one of real dead spaces between pixels or lines and perceived dead spaces in the image projected by the plurality of light valves.
Claim 3
Dependent Claim
53 words
The electronic image projection system of claim 1, further comprising: a pixel storage element associated with each pixel for storing a respective pixel signal; and control means associated with said pixel storage elements for controlling the operation thereof, said control means, pixel storage elements and light valve forming an active matrix light valve.
Claim 4
Dependent Claim
44 words
The electronic image projection system of claim 1, wherein said control means associated with each pixel includes a transistor, said transistor when turned on by a gate signal, conducts a voltage of a specific value associated with the desired brightness at its respective pixel.
Claim 5
Dependent Claim
16 words
The electronic image projection system of claim 3, wherein said transistor is a field effect transistor.
Claim 6
Dependent Claim
17 words
The electronic image projection system of claim 1, wherein substantially no light emanates from said dead spaces.
Claim 7
Dependent Claim
18 words
The electronic image projection system of claim 1, further comprising a light-blocking covering positioned between pixels or lines.
Claim 8
Dependent Claim
26 words
The electronic image projection claim 1, further comprising a heat sink adapted to dissipate heat energy from said projecting means and/or said active matrix light valve.
Claim 9
Dependent Claim
19 words
The electronic image projection system of claim 1, wherein said projection means includes lens elements coated for heat reduction.
Claim 10
Dependent Claim
18 words
The electronic image projection system of claim 1, further comprising heat absorbing elements adapted to dissipate heat energy.
Claim 11
Dependent Claim
18 words
The electronic image projection system of claim 1, further comprising a fluid means adapted to dissipate heat energy.
Claim 12
Dependent Claim
21 words
The electronic image projection system of claim 1, wherein said projecting means further comprises reflective optics constructed of a metallic substance.
Claim 13
Dependent Claim
42 words
The electronic image projection system of claim 1, further comprising a heat sensing device for sensing heat in proximity to the active matrix light valve, wherein said device monitors temperature and biases the active matrix, light valve to counter temperature fluctuation effects.
Claim 14
Dependent Claim
32 words
The electronic image projection system of claim 1, further comprising a plurality of light valves to project multiple images onto the viewing area to produce a black and white or colored image.
Claim 15
Dependent Claim
38 words
The electronic image projection system of claim 1, further comprising dichroic optics, wherein said dichroic optics overlap differently colored light valve projected images permitting said images to be focused onto a screen with a single projection lens system.
Claim 16
Dependent Claim
28 words
The electronic image projection system of claim 1, further comprising a mirror system to duplicate the image of the pixels or lines into the dead spaces between pixels.
Claim 17
Dependent Claim
20 words
The electronic image projection system of claim 1, further comprising lenses to fill the dead spaces between pixels or lines.
Claim 18
Dependent Claim
17 words
The electronic image projection system of claim 16, wherein said lenses are arranged in a lens array.
Claim 19
Dependent Claim
14 words
The electronic image projection system of claim 17, wherein said lens array is lenticular.
Claim 20
Dependent Claim
26 words
The electronic image projection system of claim 1, wherein said light valve is a full-color light valve, comprising pixels or lines of a plurality of colors.
Claim 21
Dependent Claim
28 words
The electronic image projection system of claim 19, wherein light emanating from one of the colored pixels or lines overlaps light emanating from another colored pixel or line.
Claim 22
Dependent Claim
17 words
The electronic image projection system of claim 20, wherein substantially no light emanates from said dead spaces.
Claim 23
Dependent Claim
19 words
The electronic image projection system of claim 20, wherein image is replicated to fill the dead spaces between pixels.
Claim 24
Dependent Claim
34 words
The electronic image projection system of claim 20, wherein light emanating from each of the plurality of colored pixels or lines is individually optically expanded, to fill the dead spaces between pixels or lines.
Claim 25
Dependent Claim
44 words
The electronic image projection system of claim 1, further comprising: a liquid crystal container, wherein said container is stepped to produce different cavity lengths of liquid crystal corresponding to different wavelengths of light to be projected through different areas of the liquid crystal display.
Claim 26
Dependent Claim
18 words
The electronic image projection system of claim 1, further comprising means for projecting the image onto a ceiling.
Claim 27
Dependent Claim
34 words
The electronic image projection system of claim 1, wherein said viewing area comprises a venetian blind type of screen comprising a plurality of rotatable slats wherein such slats are substantially rigid and mechanically rotatable.
Claim 28
Dependent Claim
51 words
The electronic image projection system of claim 1, further comprising a projection lens system, wherein said lens system trapezoidally predistorts the image to compensate for keystone distortion resulting from projection of the image onto a surface such that the surface is not normal to the optical axis of the projection lens.
Claim 29
Dependent Claim
55 words
The electronic image projection system of claim 1, wherein said system projects onto a surface which is not normal to the optical axis of the projection optics, wherein the light valve and projection optics are tilted so that their planes intersect at a line which also intersects the plane of the surface being projected upon.
Claim 30
Dependent Claim
32 words
The electronic image projection system of claim 1, further comprising a plurality of projection means, wherein the projection means project polarized stereoscopically-related images onto a non-depolarizing screen to be viewed in 3-D.
Claim 31
Dependent Claim
28 words
The electronic image projection system of claim 29, wherein said stereoscopically-related images are optically integrated before being further projected by a single projection lens system onto a screen
Claim 32
Dependent Claim
39 words
The electronic image projection system of claim 1, further comprising a plurality of projection means, wherein said projection means projects images emanating therefrom onto a screen comprising two lenticular lenses positioned back-to-back, restricting angle of view of each image.
Claim 33
Dependent Claim
19 words
The electronic image projection system of claim 1, further comprising a sound suppression system for eliminating system cooling noise.
Claim 34
Dependent Claim
17 words
The electronic image projection system of claim 32, wherein said sound suppression system comprises sound absorbing material.
Claim 35
Dependent Claim
19 words
The electronic image projection system of claim 32, wherein said sound suppression system further comprises barriers to deflect sound.
Claim 36
Dependent Claim
39 words
The electronic image projection system of claim 32, wherein said sound suppression system further comprises: a microphone; a speaker; and a circuit to alter phase of a sound signal detected by the microphone before sending it to the speaker.
Claim 37
Dependent Claim
21 words
The electronic image projection system of claim 1, wherein the viewing area has a surface which is textured to reduce glare.
Claim 38
Dependent Claim
15 words
The electronic image projection system of claim 1, wherein said viewing area is darkly colored.
Claim 39
Dependent Claim
19 words
The electronic image projection system of claim 1, wherein electronic signals relating to formation of the image are digitized.
Claim 40
Dependent Claim
22 words
The electronic image projection system of claim 1, wherein high resolution data is used for the display of a high resolution image.
Claim 41
Dependent Claim
33 words
The electronic image projection system of claim 1, wherein the image enters one of two ends of a coherent fiber-optic bundle and is subsequently viewed at the other end of the fiber-optic bundle.
Claim 42
Dependent Claim
22 words
The electronic image projection system of claim 40, wherein lenses magnify the light emanating from the fiber-optic bundle before it is viewed.
Claim 43
Dependent Claim
30 words
The electronic image projection system of claim 1, wherein the means for projecting further comprises a means to expand the pixel or line images to substantially eliminate said dead spaces.
Claim 44
Dependent Claim
29 words
The electronic image projection system of claim 1, wherein the means for projecting duplicates all or part of the pixel or line images to substantially eliminate said dead spaces.
Claim 45
Dependent Claim
27 words
An electronic image projection system of claim 1, further comprising a means for coloring the image, wherein said means for coloring is external to the light valve.
Claim 46
Dependent Claim
15 words
The electronic image projection system of claim 44, wherein it means for coloring comprises color
Claim 47
Dependent Claim
19 words
The electronic image projection system of claim 44, wherein said means for coloring comprises a system utilizing dichroic mirrors.
Claim 48
Dependent Claim
17 words
The electronic image projection system of claim 44, wherein said means for coloring comprises holographic color filters.
Claim 49
Dependent Claim
49 words
The electronic image projection system of claim 1, further comprising: a beam of light from a light source; a light valve; dichroic mirrors; and lenses, wherein said lenses produce separate beams of light which are colored by said dichroic mirrors before said beams f light illuminate said light valve.
Claim 50
Dependent Claim
26 words
The image formation system of claim 48, wherein offset mirrors are used to integrate said separate beams of light into a larger beam with interdispersed colors.
Claim 51
Dependent Claim
15 words
The electronic image projection system of claim 1, wherein the light valve operates by reflection.
Claim 52
Dependent Claim
21 words
The electronic image projection system of claim 1, wherein said light valve uses the birefringence of liquid crystals to modulate light.
Claim 53
Dependent Claim
22 words
The electronic image projection system of claim 1, wherein said light valve uses the scattering effect of liquid crystals to modulate light.
Claim 54
Dependent Claim
21 words
The electronic image projection system of claim 1, wherein said light valve uses polymer dispersed liquid crystals (PDLC) to modulate light.
Claim 55
Dependent Claim
23 words
The electronic image projection system of claim 1, wherein a single light valve is divided into sections, each addressed with different image information.
Claim 56
Dependent Claim
23 words
The electronic image projection system of claim 1, wherein each of said different sections are addressed with information corresponding to a different color.
Claim 57
Dependent Claim
17 words
The electronic image projection system of claim 1, wherein said light valve is a liquid crystal display.
Claim 58
Dependent Claim
19 words
The electronic image projection system of claim 1, comprising dichroic optics, wherein said dichroic optics overlap differently colored images.
Claim 59
Dependent Claim
26 words
The electronic image projection system of claim 1, comprising dichroic optics, wherein said dichroic optics divides light produced by a light source into differently colored beams.
Claim 60
Dependent Claim
43 words
The electronic image projection system of claim 1, wherein said control means associated with each pixel or line includes a gas, which, when made conductive, conducts a voltage of a specific valve associated with the desired brightness at its respective pixel or line.
Claim 61
Dependent Claim
31 words
The image formation system of claim 48, wherein a light beam is divided into a plurality of smaller beams by said lenses before said smaller beams are colored by dichroic mirrors
Claim 62
Dependent Claim
29 words
The image formation system of claim 48, wherein a light beam divided into separately colored beams by said dichroic mirrors, before being further divided into smaller individually colored beams.
Claim 63
Dependent Claim
70 words
The electronic image projection system of claim 1, wherein the pixels or lines of a multi-colored light valve are addressed, such that each pixel or line is given data whose value corresponds to the amount of one color of the light present in the image at that particular location, creating a system of color monads, instead of color triads as is normally done, to represent the color of an image.
Claim 64
Dependent Claim
23 words
The electronic image projection system of claim 1, wherein one or more wedges are used to cause pixel or line images to overlap.
Claim 65
Dependent Claim
45 words
The electronic image projection system of claim 1, wherein an optical filtering means is utilized between the image forming plane of the light valve and the surface on which the image is projected to reduce the visibility of pixels or lines in the projected image.
Claim 66
Dependent Claim
23 words
The electronic image projection system of claim 1, wherein striped mirrors are used to cause differently colored pixel or line images to overlap.
Claim 67
Dependent Claim
26 words
The electronic image projection system of claim 1, wherein striped mirrors are used to create a multiplicity of colored beams from a beam of white light.
Claim 68
Dependent Claim
29 words
The electronic image projection system of claim 1, further comprising: a condenser means; and a subsystem for superimposing red, green and blue images to form a full color image.
Claim 69
Dependent Claim
14 words
The electronic image projection system of claim 1, further comprising a MacNeille type polarizer.
Claim 70
Dependent Claim
19 words
The electronic image projection system of claim 1, wherein said means for projecting includes optics having a sapphire coating.
Claim 71
Dependent Claim
20 words
The electronic image projection system according to claim 1, wherein said means for projecting includes optics having a diamond coating.
Claim 72
Dependent Claim
31 words
The electronic image projection system of claim 1, further comprising a lens positioned after the light valve to correct for path length differences between the light valves and the projection lens.
Claim 73
Dependent Claim
49 words
The electronic image projection system of claim 1, further comprising a lens array positioned after the light valve, wherein said array comprises lenslets which produce a magnified virtual image of a pixel or line in the light valve for projection onto the viewing area by said means for projecting.
Claim 74
Dependent Claim
49 words
The electronic image projection system of claim 1, further comprising a lens array positioned after the light valve, wherein said array comprises lenslets which produce a magnified real image of a pixel or line in the light valve for projection onto the viewing area by said means for projecting.
Claim 75
Dependent Claim
48 words
The electronic image projection system of claim 1, further comprising a first and a second lens array positioned after the light valve, wherein said second lens array forms a magnified virtual image of the first lens array for projection onto a viewing area by said means for projecting.
Claim 76
Dependent Claim
48 words
The electronic image projection system of claim 1, further comprising a first and a second lens array positioned after the light valve, wherein said second lens array forms a magnified real image of the first lens array for projection onto a viewing area by said means for projecting.
Claim 77
Dependent Claim
32 words
The electronic image projection system of claim 1, further comprising a means for cooling including a tube with an orifice, wherein said tube directs a high velocity, high pressure stream of air.
Claim 78
Dependent Claim
20 words
The electronic image projection system of claim 1, further comprising a spatial filter to eliminate the appearance of dead spaces.
Claim 79
Dependent Claim
20 words
The electronic image projection system of claim 77, wherein said spatial filter is positioned in the vicinity of the lens.
Claim 80
Dependent Claim
58 words
The electronic image projection system of claim 77, further comprising: an intermediate focus lens positioned between the light valve and the projection lens to form an intermediate focus within the space between the light valve and the projection lens for spatial filtering, wherein said spatial filtering is performed before the light re-expands and passes through the projection lens.
Claim 81
Dependent Claim
15 words
The electronic image projection system of claim 77, wherein said filter is a phase filter.
Claim 82
Dependent Claim
41 words
The electronic image projection system of claim 1, further comprising wedges to create at least one extra image on the viewing area, wherein said extra image fills spaces between pixels or lines in the other image projected to the viewing area.
Claim 83
Dependent Claim
36 words
The electronic image projection system of claim 76, wherein the wedges are used to create duplicate images to fill the spaces between pixels or lines in the projected image in both the horizontal and vertical directions.
Claim 84
Dependent Claim
73 words
The electronic image projection system of claim 1, wherein white light from said source is separated into a multiplicity of colored light beams which illuminate said light valve wherein the multiplicity of colored beams are modulated with image information; and means to recombine red, green and blue components of the beams to form full color image bearing components; and wherein said components are projected to the viewing area by the means for projecting.
Claim 85
Dependent Claim
110 words
The electronic image projection system of claim 1, wherein light from said source is separated into a multiplicity of differently colored beams which address the light valve during a first period of time; color filters, wherein said filters are moved into a different position during a second period of time; wherein the multiplicity of colored beams produced illuminates the light valve differently than in the first time period with the information addressing the light valve electronically selected accordingly such that the proper color of light illuminates the proper place on the light valve so that the proper information is projected to a viewing surface and the motion is repeated periodically.
Claim 86
Dependent Claim
108 words
The electronic image projection system of claim 84, wherein the image projected onto the viewing area having a plurality of segments changes at least from a first to a second to a third time segment, such that red information is displayed on one of the viewing area segments, during the first time segment, green information is displayed on said first viewing area segment during said second time segment and blue information is displayed on said first viewing area segment during the third time segment so that a full color image is perceived by the viewer without the appearance of individual red, green and blue pixel or line areas.
Claim 87
Dependent Claim
85 words
The electronic image projection system of claim 1, wherein a full color light valve forms a full color image and further comprising: a displacing means to displace the image projected to the viewing area wherein over a period of time, red data from one image is superimposed on green data from another image which is superimposed on blue data from another image, creating the appearance of a full color image without the appearance of individual red, green and blue pixels or lines in the image.
Claim 88
Dependent Claim
208 words
The electronic image projection system of claim 86, wherein said light valve is a full color light valve, wherein a full color image is formed on said light valve and projected to said viewing area during a first segment of time; addressing information to the light valve is altered during a second segment of time, wherein the image displayed on the full color light valve is shifted by one pixel or line; a movable element placed after the light valve, wherein said element is shifted so as to shift the image projected on the viewing area in the opposite direction by one pixel or line during a second time period; and wherein the image is shifted on the light valve one pixel or line in the same direction it was shifted in the previous time period while the movable optical element after the light valve moves, causing the image on the screen to shift in the opposite direction one more pixel or line during a third time period, such that all three images projected onto the viewing area during the three time periods are in perfect registration, producing a full color image without the appearance of individual red, green and blue pixels or lines on the viewing area.
Claim 89
Dependent Claim
18 words
The electronic image projection system of claim 86, in which said displacing means consists of counter rotating mirrors.
Claim 90
Dependent Claim
17 words
The electronic image projection system of claim 86, in which said displacing means is an oscillating mirror.
Claim 91
Dependent Claim
23 words
The electronic image projection system of claim 86, in which said displacing means is an expandable prism which is caused to oscillate electronically.
Claim 92
Dependent Claim
49 words
The electronic image projection system of claim 1, utilizing the technique of "time share scanning" in which the image projected onto the viewing area has discrete pixels or lines and wherein different elements of the image are projected to different sections of the viewing area at different time segments.
Claim 93
Dependent Claim
82 words
The electronic image projection system of claim 91, wherein red pixels or lines projected onto the viewing area during one time period are superimposed onto green pixels or lines projected to the same viewing area during a second time period and are superimposed on blue pixels or lines projected to the same viewing area during a third time period wherein said image is a full-color image without the appearance of individual red, green and blue pixels or lines on the viewing area.
Claim 94
Dependent Claim
67 words
The electronic image projection system of claim 91, wherein said image comprises image elements and wherein a first image element is projected onto the viewing area during a first time segment; and a second image element is projected onto the same viewing area where spaces existed between image elements in the first time period to eliminate the appearance of spaces between image elements in the viewed image.
Claim 95
Dependent Claim
123 words
The electronic image projection system of claim 91, in which an image is projected onto the viewing area during a first segment of time; a corresponding image is projected to the same viewing area but displaced slightly so that the image elements project onto the viewing area where spaces existed in the image projected to the viewing area during the first segment of time and wherein the data projected to the viewing area during the second segment of time corresponds to actual data information for the spaces between the image elements projected to the viewing area during the first period of time, causing a perceived projected image with a higher resolution than that projected onto the viewing area during any one time period.
Claim 96
Dependent Claim
33 words
The electronic image projection system of claim 91, wherein large areas within the scene that are one color appear that color over at least one-third of the image area during all time segments.
Claim 97
Dependent Claim
37 words
The electronic image projection system of claim 91, further comprising dichroic mirrors, wherein said mirrors are used to produce colored light beams which address the light valve to maximize the amount of source light in the image.
Claim 98
Dependent Claim
56 words
The electronic image projection system of claim 1, further comprising additional light valves, wherein the light valves modulate light which is subsequently projected onto the viewing area, wherein presentation of data from the multiplicity of light valves on the viewing area creates a higher resolution image than would be displayed without the multiplicity of light valves.
Claim 99
Dependent Claim
71 words
The electronic image projection system of claim 97, wherein said light valves contain spaces between pixels or lines; and wherein light valve images are caused to overlap on said viewing area, wherein information bearing pixels or lines of one light valve create an image on the viewing area which overlaps the image of the spaces between pixels or line sin the image of another light valve projected to the viewing area.
Claim 100
Dependent Claim
30 words
The electronic image projection system of claim 97, wherein the image of one light valve projected to the screen abuts the image from another light valve projected to the screen.
Claim 101
Dependent Claim
78 words
The electronic image projection system of claim 1, wherein said light valve is a single full color light valve, wherein said light valve is addressed such that each pixel on the light valve corresponds to a different pixel int he actual scene, thereby displaying information about only one color in any one pixel in the scene, instead of utilizing a triad consisting of one red, one green, and one blue pixel to represent each pixel in the scene.
Claim 102
Dependent Claim
17 words
The electronic image projection system of claim 1, wherein the light source is a microwave excited plasma.
Claim 103
Dependent Claim
25 words
The electronic image projection system of claim 1, further comprising a filter to alter color temperature of the light source to produce an improved image.
Claim 104
Dependent Claim
27 words
The electronic image projection system of claim 1, further comprising at least a second light source, wherein at least two of the light sources are used simultaneously.
Claim 105
Dependent Claim
27 words
The electronic image projection system of claim 103 wherein beams of light from the light sources used are collimated and made contiguous by at least one mirror.
Claim 106
Dependent Claim
25 words
The electronic image projection system of claim 103, wherein multiple beams from said multiple sources are collimated and made contiguous by at least one prism.
Claim 107
Dependent Claim
43 words
The electronic image projection system of claim 103, wherein said multiple beams produced by said multiple light sources are focused to adjacent areas using at least one mirror to cause the multiple beams to expand from those areas generally in the same direction.
Claim 108
Dependent Claim
34 words
The electronic image projection system of claim 103 wherein multiple beams are intercepted at least partially by mirrors so as to redistribute the light to form a single beam with a desired intensity profile.
Claim 109
Dependent Claim
24 words
The electronic image projection system of claim 1, further comprising multiple condenser paths to transmit light from the light source into the projection system.
Claim 110
Dependent Claim
29 words
The electronic image projection system of claim 108, wherein said multiple condenser paths utilize light emanating from the light source through its top as well as through its sides.
Claim 111
Dependent Claim
52 words
The electronic image projection system of claim 1, further comprising: a condensing system to collect light from the light source, said condensing system comprising: a spherical mirror; a condenser lens; and a section of a parabolic mirror surrounding the light source to collimate light which would not pass through the condenser lens.
Claim 112
Dependent Claim
32 words
The electronic image projection system of claim 1, further comprising at least another light source, wherein two or more light sources are used to form the image projected onto the viewing area.
Claim 113
Dependent Claim
33 words
The electronic image projection system of claim 111, wherein beams produced by the said two or more light sources are optically combined so that they can be used to illuminate said light valve.
Claim 114
Dependent Claim
66 words
The electronic image projection system of claim 1, comprising: a light source; a light collection system, wherein said collection system comprises: an elliptical reflector around the light source; a condenser lens to collimate light emanating from a second focus of said elliptical reflector and a second lens to capture and collimate light which misses the elliptical reflector and therefore does not pass through the condenser lens.
Claim 115
Dependent Claim
68 words
The electronic image projection system of claim 1, comprising: a light source; a light collection system, said collection system comprising an elliptical reflector around the light source; a condenser lens to collimate light emanating from the second focus of the elliptical reflector and a section of a parabolic mirror to capture and collimate light which misses the elliptical mirror and therefore does not pass through the condenser lens.
Claim 116
Dependent Claim
95 words
The electronic image projection system of claim 1, further comprising: three light valves, each of which modulated light of a different color; a combiner cube utilized to combine the three colored images produced by the three light valves, said combiner cube having four equilateral triangular prisms whose faces are appropriately coated with dichroic coatings and said light valves all requiring input light of the same polarization; and a halfwave plate after the light valve whose light is to be transmitted through the prism cube to maximize efficiency based on polarization produced by Brewster's angle effects.
Claim 117
Dependent Claim
32 words
The electronic image projection system of claim 115, wherein internal faces of the combiner prism cube are coated to operate as a MacNeille prism and act as analyzers for the light valves.
Claim 118
Dependent Claim
75 words
The electronic image projection system of claim 1, further comprising a light collection means, comprising: an elliptical mirror with a light source placed at the first focus of said elliptical mirror; a collimating lens placed at a second focus of the ellipse to focus light originating from the light source which misses the elliptical mirror; and a collimating lens beyond the second focus of the elliptical mirror to collimate light coming from the second focus.
Claim 119
Dependent Claim
125 words
The electronic image projection system of claim 1, further comprising: a light collection means; said light collection means including an elliptical mirror with the light source placed at the first focus of the elliptical mirror; a focusing lens which gathers light emanating from a second focus of the elliptical mirror and brings it to a third focus; a second elliptical surface to capture light that missed the first elliptical surface, said second elliptical surface curved to bring light that hits it coming from the first focus of the first ellipse to the place in space where the focusing lens comes to a focus; and a collimating lens beyond the third focus to collimate light emanating from the focusing lens and from the second elliptical surface.
Claim 120
Dependent Claim
92 words
The electronic display system according to claim 1 comprising a light source and light collection means, said light collection means consisting of a light source and a "Fresnel elliptical reflector" with the light source at the focus of the ellipse, said Fresnel elliptical reflector consisting of multiple segments of an ellipse side by side forming sawtooth surfaces, the sum of which acts like a standard elliptical reflector while the diameter of the opening at the end of the Fresnel elliptical reflector can remain smaller than the diameter of a standard elliptical reflector.
Claim 121
Dependent Claim
41 words
The electronic image projection system of claim 1, comprising a "light tunnel" at one or more points in the means for projecting to prevent light from escaping outside of the means for projecting, said light tunnel having a reflective inner surface.
Claim 122
Dependent Claim
17 words
The electronic image projection system of claim 120, wherein said light tunnel is shaped as a cylinder.
Claim 123
Dependent Claim
20 words
The electronic image projection system of claim 120, wherein said light tunnel is shaped such that its opening is rectangular.
Claim 124
Dependent Claim
40 words
The electronic image projection system of claim 1, further comprising: a non-image concentrator wherein light sent into the connector is funneled down to an opening which is smaller than the size of the filament or arc in the light source.
Claim 125
Dependent Claim
71 words
The electronic image projection system of claim 1, wherein said light valve makes use of polarized light and further comprising: a MacNeille prism to polarize light in the system for use by said light valve; mirrors to rotate the plane of polarization of one of the beams exiting the MacNeille prism by 90 degrees so that its new plane of polarization matches that of the second beam exiting the MacNeille prism.
Claim 126
Dependent Claim
20 words
The electronic image projection system of claim 124, wherein the two collimated beams from the MacNeille prism are made contiguous.
Claim 127
Dependent Claim
34 words
The electronic image projection system of claim 124, wherein the two beams emanating from the MacNeille prism are brought to two adjacent foci such that they then expand together, forming a single expanding beam.
Claim 128
Dependent Claim
63 words
The electronic image projection system of claim 1, further comprising: a first beam emanating from a MacNeille prism, wherein said first beam becomes parallel to a second beam emanating from the MacNeille prism; and a halfwave plate in one of the first or second beams emanating from the MacNeille prism, wherein both beams emanating from the prism become polarized in the same plane.
Claim 129
Dependent Claim
37 words
The electronic image projection system of claim 127, wherein the two beams emanating from the MacNeille prism are made contiguous forming a single beam; and cylindrical lenses to readjust the aspect ratio of that new single beam.
Claim 130
Dependent Claim
43 words
The electronic image projection system of claim 1, wherein said light source is white and is split into three colored beams, wherein each of the three colored beams travels through a respective MacNeille plate for polarization and use in the means for projecting.
Claim 131
Dependent Claim
63 words
The electronic image projection system of claim 1 wherein said light valve requires polarized light; and a "Fresnel MacNeille beam splitter," comprising: two Fresnel prisms whose flat faces are coated with a multilayer coating necessary to form MacNeille prisms wherein said prisms are glued together along their flat surfaces to polarize light within the system for use by at least one light valve.
Claim 132
Dependent Claim
43 words
The electronic image projection system of claim 1, wherein said light valve uses polarization and wherein said means for projecting comprises lenses, wherein said lenses have sufficient focal lengths and anti-reflection coatings, wherein polarized light is not significantly depolarized by passage through lenses.
Claim 133
Dependent Claim
46 words
The electronic image projection system of claim 1, wherein said light valve utilizes polarized light, and further comprising: at least one MacNeille polarizing element placed in series with a conventional polarizer to produce polarized light of high purity for use by at least one light valve.
Claim 134
Dependent Claim
33 words
The electronic image projection system of claim 1, further comprising at least one lens array before the light valve, wherein said array increases the amount of light that passes through the light valve.
Claim 135
Dependent Claim
31 words
The electronic image projection system of claim 133, further comprising a second lens array, wherein said lens arrays are used before the light valve for more uniform illumination of pixel holes.
Claim 136
Dependent Claim
23 words
The electronic image projection system of claim 133, wherein said lens arrays focus an image of the light source into each pixel hole.
Claim 137
Dependent Claim
50 words
The electronic image projection system of claim 133, wherein the lenslets of the lens arrays before the light valve comprise a Galilean type of telescope so as to take the collimated light illuminating the lens arrays and shrink it to smaller collimated beams which will fit into each pixel hole.
Claim 138
Dependent Claim
65 words
The electronic image projection system of claim 1, further comprising: fiber optics in a bundle, wherein one end of the bundle receives the illuminating light from the light source; and another end of the bundle is arranged such that one fiber is adjacent to each pixel hole and is substantially the same size as a pixel hole to direct the light into the pixel holes.
Claim 139
Dependent Claim
30 words
The electronic image projection system of claim 1, wherein said light source is voltage or current controlled to allow the alteration of brightness and/or color temperature of the image projected.
Claim 140
Dependent Claim
29 words
The electronic image projection system of claim 1, further comprising a wireless transmission system to connect an output of an audio amplifier in the system to speakers and amplifiers.
Claim 141
Dependent Claim
43 words
The electronic image projection system of claim 1, further comprising a wireless transmission system capable of receiving video from a small transmitter connected to a cable box or VCR, wherein said box or VCR will send a video signal to the projection system.
Claim 142
Dependent Claim
14 words
The electronic image projection system of claim 1, further comprising a video cassette player.
Claim 143
Dependent Claim
12 words
The electronic image projection system of claim 1, further comprising a computer.
Claim 144
Dependent Claim
92 words
The electronic display system according to claim 1 comprising a light source and light collection means, said light collection means consisting of a light source and a "Fresnel parabolic reflector" with the light source at the focus of the parabola, said Fresnel parabolic reflector consisting of multiple segments of a parabola side by side forming sawtooth surfaces, the sum of which acts like a standard parabolic reflector while the diameter of the opening at the end of the Fresnel parabolic reflector can remain smaller than the diameter of a standard parabolic reflector.
Claim 145
Dependent Claim
258 words
An electronic image projection system, comprising: a light source; a light valve means having a plurality of pixels or lines arranged in a matrix for forming a black and white image, said light valve means including one of: a single light valve having perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines and real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines; and a plurality of light valves having at least one of real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines and perceived dead spaces caused by presence or relatively darker pixels or lines adjacent to relatively lighter pixels or lines; a solid state pixel or line storage element associated with each pixel or line for storing a respective pixel or line control signal; control means associated with said solid state pixel or line storage elements for controlling the operation thereof, said control means, pixel or line storage elements and light valve forming an active matrix light valve; and means for projecting the image formed by said light valve onto a viewing area; and means to substantially eliminate perception of perceived dead spaces and real dead spaces between pixels or lines in the image projected by the signals light valve and to substantially eliminate perception of at least one of real dead spaces between pixels or lines and perceived dead spaces in the image projected by the plurality of light valves.
Claim 146
Dependent Claim
258 words
An electronic image projection system, comprising: a light source; a light valve means having a plurality of pixels or lines arranged in a matrix for forming a black and white image, said light valve means including one of: a single light valve having perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines and real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines; and a plurality of light valves having at least one of real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines and perceived dead spaces caused by presence or relatively darker pixels or lines adjacent to relatively lighter pixels or lines; a solid state pixel or line storage element associated with each pixel or line for storing a respective pixel or line control signal; control means associated with said solid state pixel or line storage elements for controlling the operation thereof, said control means, pixel or line storage elements and light valve forming an active matrix light valve; and means for projecting the image formed by said light valve onto a viewing area; and means to substantially eliminate perception of perceived dead spaces and real dead spaces between pixels or lines in the image projected by the signals light valve and to substantially eliminate perception of at least one of real dead spaces between pixels or lines and perceived dead spaces in the image projected by the plurality of light valves.
Claim 147
Dependent Claim
267 words
An electronic image projection system comprising: a light source; a light valve means having a plurality of pixels or lines arranged in a matrix for forming an image, said light valve means including one of: a single light valve having perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines and real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines; and a plurality of light valves having at least one of real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines and perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines; a solid state pixel or line storage element associated with each pixel or line for storing a respective pixel or line control signal; control means associated with said solid state pixel or line storage elements for controlling the operation thereof, said control means, pixel or line storage elements and light valve forming an active matrix light valve; and means for projecting the image formed by said light valve onto a viewing area; and means to substantially eliminate perception of perceived dead spaces and real dead spaced between pixels or lines in the image projected by the single light valve and to substantially eliminate perception of at least one of real dead spaces between pixels or lines and perceived dead spaces in the image projected by the plurality of light valves such that all or part of pixel or line images are duplicated.
Claim 148
Dependent Claim
267 words
An electronic image projection system comprising: a light source; a light valve means having a plurality of pixels or lines arranged in a matrix for forming an image, said light valve means including one of: a single light valve having perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines and real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines; and a plurality of light valves having at least one of real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines and perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines; a solid state pixel or line storage element associated with each pixel or line for storing a respective pixel or line control signal; control means associated with said solid state pixel or line storage elements for controlling the operation thereof, said control means, pixel or line storage elements and light valve forming an active matrix light valve; and means for projecting the image formed by said light valve onto a viewing area; and means to substantially eliminate perception of perceived dead spaces and real dead spaced between pixels or lines in the image projected by the single light valve and to substantially eliminate perception of at least one of real dead spaces between pixels or lines and perceived dead spaces in the image projected by the plurality of light valves such that all or part of pixel or line images are duplicated.
Claim 149
Dependent Claim
255 words
An electronic image projection system, comprising: a light source; a light valve means having a plurality of pixels or lines arranged in a matrix for forming an image, said light valve means including one of: a single light valve having perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines and real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines; and a plurality of light valves having at least one of real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines and perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines; a solid state pixel or line storage element associated with each pixel or line for storing a respective pixel or line control signal; control means associated with said solid state pixel or line storage elements for controlling the operation thereof, said control means, pixel or line storage elements and light valve forming an active matrix light valve; and means for projecting the image formed by said light valve onto a viewing area; and means to substantially eliminate perception of perceived dead spaces and real dead spaces between pixels or lines in the image projected by the single light valve and to substantially eliminate perception of at least one of real dead spaces between pixels or lines and perceived dead spaces in the image projected by the plurality of light valves.
Claim 150
Dependent Claim
255 words
An electronic image projection system, comprising: a light source; a light valve means having a plurality of pixels or lines arranged in a matrix for forming an image, said light valve means including one of: a single light valve having perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines and real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines; and a plurality of light valves having at least one of real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines and perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines; a solid state pixel or line storage element associated with each pixel or line for storing a respective pixel or line control signal; control means associated with said solid state pixel or line storage elements for controlling the operation thereof, said control means, pixel or line storage elements and light valve forming an active matrix light valve; and means for projecting the image formed by said light valve onto a viewing area; and means to substantially eliminate perception of perceived dead spaces and real dead spaces between pixels or lines in the image projected by the single light valve and to substantially eliminate perception of at least one of real dead spaces between pixels or lines and perceived dead spaces in the image projected by the plurality of light valves.
Claim 151
Dependent Claim
261 words
An electronic image projection system, comprising: a light source; a light valve means having a plurality of pixels or lines arranged in a matrix for forming an image, said light valve means including one of: a single light valve having perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines and real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines; and a plurality of light valves having at least one of real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines and perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines; a solid state pixel or line storage element associated with each pixel or line for storing a respective pixel or line control signal; control means associated with said solid state pixel or line storage elements for controlling the operation thereof, said control means, pixel or line storage elements and light valve forming an active matrix light valve; means for projecting the image forming by said light valve onto a viewing area; means to substantially eliminate perception of perceived dead spaces and real dead spaces between pixels or lines in the image projected by the single light valve and to substantially eliminate perception of at least one of real dead spaces between pixels or lines and perceived dead spaces in the image projected by the plurality of light valves such that pixel or line images are expanded.
Claim 152
Dependent Claim
261 words
An electronic image projection system, comprising: a light source; a light valve means having a plurality of pixels or lines arranged in a matrix for forming an image, said light valve means including one of: a single light valve having perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines and real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines; and a plurality of light valves having at least one of real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines and perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines; a solid state pixel or line storage element associated with each pixel or line for storing a respective pixel or line control signal; control means associated with said solid state pixel or line storage elements for controlling the operation thereof, said control means, pixel or line storage elements and light valve forming an active matrix light valve; means for projecting the image forming by said light valve onto a viewing area; means to substantially eliminate perception of perceived dead spaces and real dead spaces between pixels or lines in the image projected by the single light valve and to substantially eliminate perception of at least one of real dead spaces between pixels or lines and perceived dead spaces in the image projected by the plurality of light valves such that pixel or line images are expanded.
Claim 153
Dependent Claim
259 words
An electronic image projection system, comprising: a light source; a light valve means having a plurality of pixels or lines arranged in a matrix for forming a black and white image; a single light valve having perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines and real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines; and a plurality of light valves having at least one of real dead spaces between pixels or lines defined by non-information bearing spaces between pixels or lines and perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines; a solid state pixel storage element associated with each pixel or line for storing a respective pixel or line control signal; control means associated with said solid state pixel or line storage elements for controlling the operation thereof, said control means, pixel or line storage elements and light valve forming an active matrix light valve; means for projecting the image formed by said light valve onto a viewing area; means to substantially eliminate perception of perceived dead spaces and real dead spaces between pixels or lines in the image projected by the single light valve and to substantially eliminate perception of at least one of real dead spaces between pixels or lines and perceived dead spaces in the image projected by the plurality of light valves such that all or part of the pixel or line images are duplicated.
Claim 154
Dependent Claim
259 words
An electronic image projection system, comprising: a light source; a light valve means having a plurality of pixels or lines arranged in a matrix for forming a black and white image; a single light valve having perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines and real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines; and a plurality of light valves having at least one of real dead spaces between pixels or lines defined by non-information bearing spaces between pixels or lines and perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines; a solid state pixel storage element associated with each pixel or line for storing a respective pixel or line control signal; control means associated with said solid state pixel or line storage elements for controlling the operation thereof, said control means, pixel or line storage elements and light valve forming an active matrix light valve; means for projecting the image formed by said light valve onto a viewing area; means to substantially eliminate perception of perceived dead spaces and real dead spaces between pixels or lines in the image projected by the single light valve and to substantially eliminate perception of at least one of real dead spaces between pixels or lines and perceived dead spaces in the image projected by the plurality of light valves such that all or part of the pixel or line images are duplicated.
Claim 155
Dependent Claim
269 words
An electronic image projection system, comprising: a light source; a light valve means having a plurality of pixels or lines arranged in a matrix for forming a black and white image, said light valve means including one of: a single light valve having perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines and real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines; and a plurality of light valves having at least one of real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines and perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines; a solid state pixel or line storage element associated with each pixel or line for storing a respective pixel or line control signal; control means associated with said solid state pixel or line storage elements for controlling the operation thereof, said control means, pixel or line storage elements and light valve forming an active matrix light valve; and means for projecting the image formed by said light valve onto a viewing area; means to substantially eliminate perception of perceived dead spaces and real dead spaces between pixels or lines in the image projected by the single light valve and to substantially eliminate perception of at least one of real dead spaces between pixels or lines and perceived dead spaces in the image projected by the plurality of light valves such that all or part of said pixels or lines are expanded.
Claim 156
Dependent Claim
269 words
An electronic image projection system, comprising: a light source; a light valve means having a plurality of pixels or lines arranged in a matrix for forming a black and white image, said light valve means including one of: a single light valve having perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines and real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines; and a plurality of light valves having at least one of real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines and perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines; a solid state pixel or line storage element associated with each pixel or line for storing a respective pixel or line control signal; control means associated with said solid state pixel or line storage elements for controlling the operation thereof, said control means, pixel or line storage elements and light valve forming an active matrix light valve; and means for projecting the image formed by said light valve onto a viewing area; means to substantially eliminate perception of perceived dead spaces and real dead spaces between pixels or lines in the image projected by the single light valve and to substantially eliminate perception of at least one of real dead spaces between pixels or lines and perceived dead spaces in the image projected by the plurality of light valves such that all or part of said pixels or lines are expanded.
Claim 157
Dependent Claim
33 words
A display system comprising an optical means for superimposing the red, green and blue components of a produced image to form a full color image with absence of apparent dots, lines or pixels.
Claim 158
Dependent Claim
33 words
A display system comprising an optical means for superimposing the red, green and blue components of a produced image to form a full color image with absence of apparent dots, lines or pixels.
Claim 159
Dependent Claim
15 words
A video display system of claim 150 in which the display consists of a CRT.
Claim 160
Dependent Claim
14 words
A display system of claim 150 in which the display includes a plasma display.
Claim 161
Dependent Claim
15 words
A display system of claim 150 in which the display system includes an electroluminescent display.
Claim 162
Dependent Claim
12 words
A display system of claim 150 in which the system includes projection.
Claim 163
Dependent Claim
71 words
The electronic image projection system of claim 150, further comprising a lens array to create real images of at least two differently colored pixels or lines from the image to be projected; and wherein said means for projecting includes a projection lens, wherein said lens produces an image of the image plane of the system and blurring the real images of the colored pixels or lines produced by the lens array.
Claim 164
Dependent Claim
15 words
The electronic image projection system of claim 155, wherein said lens arrays comprise spherical lenses.
Claim 165
Dependent Claim
16 words
The electronic image projection system of claim 155, wherein said lens arrays consist of cylindrical lenses.
Claim 166
Dependent Claim
35 words
The electronic image projection system of claim 155, wherein said lens arrays are comprised of lenslets and wherein there are more lenslets in the lens array than there are pixels or lines in the image.
Claim 167
Dependent Claim
43 words
The electronic image projection system of claim 155, further comprising a lens array, wherein said lens array is used to focus images of individual colored pixels or lines; and wedges, wherein some of the pixel images are made to overlap other pixel images.
Claim 168
Dependent Claim
135 words
An electronic image display system, comprising: means for producing an image comprising pixels or lines, wherein said means for producing comprises one of: a single image forming means having perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines and real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines; and a plurality of image forming means having at least one of real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines and perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines; and means to substantially eliminate perception of perceived spaces and real dead spaces between pixels or lines in the image.
Claim 169
Dependent Claim
135 words
An electronic image display system, comprising: means for producing an image comprising pixels or lines, wherein said means for producing comprises one of: a single image forming means having perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines and real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines; and a plurality of image forming means having at least one of real dead spaces between pixels or lines defined by actual non-information bearing spaces between pixels or lines and perceived dead spaces caused by presence of relatively darker pixels or lines adjacent to relatively lighter pixels or lines; and means to substantially eliminate perception of perceived spaces and real dead spaces between pixels or lines in the image.
Claim 170
Dependent Claim
51 words
The electronic image projection system of claim 160 wherein the image comprises red, green and blue pixels or lines; and means to superimpose corresponding red, green and blue pixels or lines so as to create a full color image without the appearance of individual red, green and blue pixels or lines.
Claim 171
Dependent Claim
71 words
The electronic image projection system of claim 1, further comprising a lens array to create real images of at least 2 differently colored pixels or lines from the image to be projected; and wherein said means for projecting includes a projection lens, wherein said lens produces an image of the image plane of the system and blurring the real images of the colored pixels or lines produced by the lens array.
Claim 172
Dependent Claim
15 words
The electronic image projection system of claim 162, wherein said lens arrays comprise spherical lenses.
Claim 173
Dependent Claim
15 words
The electronic image projection system of claim 162, wherein said lens arrays comprise cylindrical lenses.
Claim 174
Dependent Claim
35 words
The electronic image projection system of claim 162, wherein said lens arrays are comprised of lenslets and wherein there are more lenslets in the lens array than there are pixels or lines in the image.
Claim 175
Dependent Claim
27 words
The electronic image projection system of claim 1, further comprising lens arrays to eliminate the appearance of red, green and blu pixel or lines oin the image.
Claim 176
Dependent Claim
77 words
The electronic image projection system of claim 1, further comprising a lens array, wherein said array contains more lenslets than there are pixels or lines in the image to be displayed; and a second lens array comprising lenslets wherein said second array creates individual pixel or line images that do not display individual red, green and blue pixels or lines or components within any pixel or line image created by any lenslet of the second lens array.
Claim 177
Dependent Claim
43 words
The electronic image projection system of claim 1, further comprising a lens array, wherein said lens array is used to focus images of individual colored pixels or lines; and wedges, wherein some of the pixel images are made to overlap other pixel images.
References Cited (Backward Citations)
US3442508A
Cited
US3523717A
Cited
US4739396A
Cited
US4739396C1
Cited
US4672457A
Cited
JPS4879596A
Cited
US3824003A
Cited
US4025724A
Cited
US4127322A
Cited
US4158860A
Cited
US4460247A
Cited
US4389096A
Cited
US4365869A
Cited
US4191456A
Cited
US4215762A
Cited
US4349817A
Cited
US4455576A
Cited
US4635127A
Cited
US4591902A
Cited
JPS59214825A
Cited
JPS602916A
Cited
US4680579A
Cited
US4632514A
Cited
JPS60179723A
Cited
US4904061A
Cited
US4611245A
Cited
US4733948A
Cited
US4745485A
Cited
US4730211A
Cited
US4748510A
Cited
US4864390A
Cited
US4864390B1
Cited
US5161027A
Cited
US4766430A
Cited
US4984091A
Cited
US5005968A
Cited
US5046827A
Cited
US5046827C1
Cited
US5161042A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-04-04 | 1997-10-04 | 1998-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-04-04 | 2001-10-04 | 2002-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-04-04 | 2005-10-04 | 2006-04-05 | $7700.00 | Window Closed / Lapsed |