Patent US3604791A successfully refreshed from Google Patents.
US3604791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System (process) and device for filming and projection of cinema film for variable screen
Assignee: COMITETUL DE STAT PENTRU CULTURA SI ARTA
•
Filing: 1967-09-21
•
Granted: 1971-09-14
•
Expires: 1987-09-21
Abstract
Abstract A method and apparatus for producing motion pictures which are elongated either horizontally or vertically to suit the artistic requirements of particular scenes. In addition to the normally horizontally elongated images, extra-wide images may be projected if desired. A motion picture camera is provided for making a cinema film in which horizontally elongated picture frames on the strip may carry either horizontally elongated images or vertically elongated images. These images may be anamorphosed. The result is a filmstrip having these images on it, along with the vertical images and deanamorphosed the anamorphosed images. The projector exhibits the images on a motion picture screen which has an inverted T-shape.
Inventors
- 👤 Vasile Baltatu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:39
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/08; G03B37/00
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
75 words
A method of producing a motion picture film comprising the steps of, in combination: a. directing light onto a motion picture film to produce a plurality of images, each on a respective picture frame; and b. masking the light so directed to produce at least some picture frames having differently proportioned images of varying sizes and recording adjacent each image an indication of one of a number of preselected categories into which that image falls.
Claim 2
Independent Claim
75 words
A method of producing a motion picture film comprising the steps of, in combination: a. directing light onto a motion picture film to produce a plurality of images, each on a respective picture frame; and b. masking the light so directed to produce at least some picture frames having differently proportioned images of varying sizes and recording adjacent each image an indication of one of a number of preselected categories into which that image falls.
Claim 3
Independent Claim
102 words
A method of producing a motion picture film comprising the steps of, in combination: a. directing light onto a motion picture film to produce a plurality of images on separate picture frames; b. masking the light so directed to produce at least some picture frames having images of a reduced size, and recording adjacent each image an indication of one of a number of preselected categories of size into which that image falls; and c. projecting horizontally elongated images onto the crossbar portion of an inverted T-shaped screen, and projecting vertically elongated images onto the leg portion of the same T-shaped screen.
Claim 4
Independent Claim
102 words
A method of producing a motion picture film comprising the steps of, in combination: a. directing light onto a motion picture film to produce a plurality of images on separate picture frames; b. masking the light so directed to produce at least some picture frames having images of a reduced size, and recording adjacent each image an indication of one of a number of preselected categories of size into which that image falls; and c. projecting horizontally elongated images onto the crossbar portion of an inverted T-shaped screen, and projecting vertically elongated images onto the leg portion of the same T-shaped screen.
Claim 5
Dependent Claim
151 words
The method of claim 2 including the steps of: a. forming images of vertically elongated scenes, b. optically rearranging said images to fit within horizontally elongated picture frames on a film within a motion picture camera, c. forming permanent images of said vertically elongated scenes on the horizontally elongated picture frames of a motion picture film, d. progressively reducing the size of the image formed on successive picture frames on said film to form permanent images on the frames including the darkened areas and picture bearing areas in which successive picture frames carry picture bearing areas of varying width: height ratios extending from the width: height ratio of a vertically elongated image to those of a horizontally elongated image, and e. projecting said picture frames onto the same inverted T-shaped screen to produce a motion picture having a gradual variation between the proportions of horizontally elongated images and vertically elongated images.
Claim 6
Dependent Claim
35 words
The method of claim 3 including the step of anamorphosing at least some images of said scenes, thereafter forming permanent images of said anamorphosed scenes on filmstrip, and deanamorphosing said images during the projection process.
Claim 7
Dependent Claim
41 words
The method of claim 4 including the step of rotating said anamorphosed images with a mirror prior to the formation of permanent images on the picture film to thereby form compressed images of vertically elongated scenes on horizontally elongated picture frames.
Claim 8
Independent Claim
148 words
A method for recording and exhibiting motion picture images formed by horizontal and vertical anamorphosing and delimiting the frame to obtain images which may be projected in variable sizes by deanamorphosing, the sizes being wide, normal, high and intermediate, the images being in succession and in any desired order, projected onto an inverted T-shaped screen, comprising the steps of: a. forming wide images on respective frames of a motion picture film by anamorphosing in the horizontal direction; b. forming high images by anamorphosing in the vertical direction through an anamorphotic lens rotated 90* from its position for anamorphosing in the horizontal direction; c. forming intermediate images by using a variable frame limiter actuated simultaneously with a zoom; d. projecting wide images onto the inverted T-shaped screen by deanamorphosing in the horizontal direction; and e. projecting high images onto the inverted T-shaped screen by deanamorphosing in the vertical direction.
Claim 9
Independent Claim
148 words
A method for recording and exhibiting motion picture images formed by horizontal and vertical anamorphosing and delimiting the frame to obtain images which may be projected in variable sizes by deanamorphosing, the sizes being wide, normal, high and intermediate, the images being in succession and in any desired order, projected onto an inverted T-shaped screen, comprising the steps of: a. forming wide images on respective frames of a motion picture film by anamorphosing in the horizontal direction; b. forming high images by anamorphosing in the vertical direction through an anamorphotic lens rotated 90* from its position for anamorphosing in the horizontal direction; c. forming intermediate images by using a variable frame limiter actuated simultaneously with a zoom; d. projecting wide images onto the inverted T-shaped screen by deanamorphosing in the horizontal direction; and e. projecting high images onto the inverted T-shaped screen by deanamorphosing in the vertical direction.
Claim 10
Dependent Claim
49 words
The method according to claim 6, wherein step e is carried out by deanamorphosing in the vertical direction through a supplementary anamorphotic lens rotated 90* from its normal position for the horizontal direction, and through an optical device having a movable mirror which is actuated by an electromechanical device.
Claim 11
Dependent Claim
42 words
The method according to claim 6, wherein step e is carried out by the step of using an automatic device wherein the anamorphotic lens is rotated through 90* simultaneously with the actuation of a correction mirror provided for the vertical image position.
Claim 12
Dependent Claim
31 words
The method according to claim 6, wherein steps d and e are carried out by the step of projecting successively high and wide images by means of two independent projection apparatuses.
Claim 13
Dependent Claim
50 words
The method according to claim 6, wherein step e is carried out by the step of projecting and forming very high images by using an image rotating device provided with three mirrors for rotating the image from the vertical to the horizontal when forming it, and conversely when projecting it.
Claim 14
Dependent Claim
49 words
The method according to claim 6, further including the step of forming the inverted T-shaped screen by adding a member to the central upper portion of a normal wide screen to permit the projection of images in the basic sizes; wide, normal and high, and in sizes intermediate thereto.
Claim 15
Dependent Claim
45 words
The method of claim 6, wherein the step of using variable frame limiter simultaneously with a zoom coupled to limiter further includes the step of using a limiter equipped two masks, and the step of blocking one of the masks when form the high images.
Claim 16
Dependent Claim
93 words
The method according to claim 6, further including the steps of successively deanamorphosing images in the horizontal and vertical directions by using two fixed anamorphotic lenses and directing the image to the desired lens by means of two mirrors, one of which is suitably inclined to correct the position of the vertical images and the other a movable mirror which is actuated by means of a semicirCular electromagnet with two coils and an iron core which can be placed in one of two different positions in dependence on signals received from the film.
Claim 17
Dependent Claim
42 words
The method according to claim 6, further including the step of projecting the vertical images by means of an anamorphotic lens which is rotated 90* from its normal position simultaneously with actuating a mirror for correcting the position of the vertical images.
Claim 18
Dependent Claim
74 words
The method according to claim 6, further including forming images by the steps of rotating the natural image and then anamorphorizing it, these steps being carried out by an image rotation device provided with three plane mirrors, one of the mirrors being movably mounted and one inclined, so that during projecting steps the base lines of the vertical frames will be projected along the same line as the base lines of the horizontal frames.
Claim 19
Dependent Claim
25 words
The method according to claim 15, further including the step of using cylindrical mirrors in the image rotation device to simultaneously anamorphosize and rotate images.
Claim 20
Dependent Claim
82 words
A motion picture projection screen comprising, in combination: a lower flat member having a generally rectangular shape, the width of which is greater than the height, and a central flat member forming a generally rectangular surface extending upwardly from said lower screen member to form an inverted T-shaped screen on which horizontally elongated images may be projected on the lower member, and vertically elongated images may be projected on the central member and the region of the lower member immediately below it.
Claim 21
Dependent Claim
82 words
A motion picture projection screen comprising, in combination: a lower flat member having a generally rectangular shape, the width of which is greater than the height, and a central flat member forming a generally rectangular surface extending upwardly from said lower screen member to form an inverted T-shaped screen on which horizontally elongated images may be projected on the lower member, and vertically elongated images may be projected on the central member and the region of the lower member immediately below it.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |