US5033814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line light source
Assignee: NILFORD LABORATORIES Inc dba AMTEL VIDEO
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Filing: 1989-08-11
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Granted: 1991-07-23
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Expires: 2009-08-11
Abstract
Abstract An apparatus for producing a pixel-modulated line light source from a point light source in which a fiber optic bundle formed of individual fibers arranged in a cylindrical array forming a tip at one end and having the individual fibers spread to a substantially flat line of fibers at the other end optically coupled with an optical shutter means which is constructed of an array of aperture cells disposd in a straight line region aligned with the flat line of fibers. The transmissivity of the aperture cells is individually controllable by electrical signals.
Inventors
- 👤 Wendell D. Brown
- 👤 William T. Glaser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:23
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/40; H04N1/40025; H04N1/40037; H04N3/00; H04N3/02; H04N3/08; H04N5/00; H04N5/74; H04N5/7416; H04N1/04; H04N1/113; H04N1/19; H04N1/191; H04N1/192; H04N1/193
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
140 words
An apparatus for producing a pixel-modulated line light source from a point light source comprising: fiber optic bundle means formed of individual fibers having a first end and a second end, said first end having said individual fibers arranged in a cylindrical array forming a first tip and being disposed to intercept light impinging thereon, said second end having said individual fibers spread to an arrangement of a generally flat line of fibers, said second end being disposed to direct light through said fibers to an optical shutter means; and an optical shutter means, said optical shutter means comprising an array of aperture cells disposed in an aperture region juxtaposed to and substantially aligned with said flat line of fibers, wherein a common optical property of each one of said aperture cells is individually controllable by means of control signals.
Claim 2
Independent Claim
140 words
An apparatus for producing a pixel-modulated line light source from a point light source comprising: fiber optic bundle means formed of individual fibers having a first end and a second end, said first end having said individual fibers arranged in a cylindrical array forming a first tip and being disposed to intercept light impinging thereon, said second end having said individual fibers spread to an arrangement of a generally flat line of fibers, said second end being disposed to direct light through said fibers to an optical shutter means; and an optical shutter means, said optical shutter means comprising an array of aperture cells disposed in an aperture region juxtaposed to and substantially aligned with said flat line of fibers, wherein a common optical property of each one of said aperture cells is individually controllable by means of control signals.
Claim 3
Dependent Claim
15 words
The apparatus according to claim 1 wherein said point light source is an arc lamp.
Claim 4
Dependent Claim
14 words
The apparatus according to claim 1 wherein said point light source is a laser.
Claim 5
Dependent Claim
31 words
The apparatus according to claim 1 further including video signal generating means, said optical shutter means being coupled to said video signal generating means for responding to a video control signal.
Claim 6
Dependent Claim
17 words
The apparatus according to claim 1 further comprising means for projecting and variably deflecting said modulated light.
Claim 7
Dependent Claim
24 words
The apparatus according to claim 1 wherein said light directed through said fibers is imaged onto said optical shutter means by an imaging optic.
Claim 8
Dependent Claim
12 words
The apparatus according to claim 6 wherein said imaging optic is astigmatic.
Claim 9
Dependent Claim
67 words
The apparatus according to claim 1 further including: rod means comprising an optically transmissive cylinder having a receiving end, a transmitting end and an inner wall, said inner wall being substantially totally internally reflective of light, said rod means being disposed to abut said first tip and aligned to receive impinging light from said point light source and to direct said impinging light into said first tip.
Claim 10
Dependent Claim
12 words
The apparatus according to claim 8, wherein said rod means is hollow.
Claim 11
Dependent Claim
13 words
The apparatus according to claim 8, wherein said receiving end is a lens.
Claim 12
Dependent Claim
15 words
The apparatus according to claim 8, wherein said rod means has a circular cross section.
Claim 13
Dependent Claim
16 words
The apparatus according to claim 8, wherein said rod means has a substantially flat cross section.
Claim 14
Dependent Claim
31 words
The apparatus according to claim 1, wherein said aperture cells are of a uniform size in the same order of magnitude as the cross section of one of said individual fibers.
Claim 15
Dependent Claim
23 words
The apparatus according to claim 1, wherein said aperture cells are disposed in one-to-one correspondence with individual ones one of said individual fibers.
Claim 16
Dependent Claim
28 words
The apparatus according to claim 1, wherein said aperture cells are of a uniform size and are larger than the cross section of one of said individual fibers.
Claim 17
Dependent Claim
25 words
The apparatus according to claim 1, wherein said array of aperture cells arranged in said aperture region are disposed having centers along a common line.
Claim 18
Dependent Claim
29 words
The apparatus according to claim 1, wherein said array of aperture cells arranged in said aperture region are disposed having centers along one of a plurality of parallel lines.
Claim 19
Dependent Claim
21 words
The apparatus according to claim 17, wherein adjacent aperture cells are disposed having centers along alternating ones of two parallel lines.
Claim 20
Dependent Claim
129 words
The apparatus according to claim 1, wherein said array of aperture cells comprise: an optically active material forming a slab having a first face and a second face, said optically active material being responsive to an electric field to change birefringence, affecting polarization, for control of transmissivity in an orifice region between oppositely-polarized electrodes; a first electrode associated with each one of said aperture cells, said first electrode having a first margin mounted to said substrate and juxtaposed to an orifice region of said one of said aperture cells; and a second electrode common to each one of said aperture cells, said second electrode having a second margin mounted to said substrate and juxtaposed to said orifice region of said one of said aperture cells opposing said first margin.
Claim 21
Dependent Claim
129 words
The apparatus according to claim 1, wherein said array of aperture cells comprise: an optically active material forming a slab having a first face and a second face, said optically active material being responsive to an electric field to change birefringence, affecting polarization, for control of transmissivity in an orifice region between oppositely-charged electrodes; a first electrode associated with each one of said aperture cells, said first electrode having a first margin mounted to said substrate and juxtaposed to an orifice region of said one of said aperture cells; and a second electrode associated with each one of said aperture cells, said second electrode having a second margin mounted to said substrate and juxtaposed to said orifice region of said one of said aperture cells opposing said first margin.
Claim 22
Dependent Claim
39 words
The apparatus according to claim 20, wherein said aperture cells are disposed having centers along a plurality of parallel lines within said aperture region such that no two aperture cells are adjacent one another on a common parallel line.
Claim 23
Dependent Claim
17 words
The apparatus according to claim 19, wherein said aperture region comprises two parallel lines of aperture cells.
Claim 24
Independent Claim
208 words
An apparatus for producing a pixel-modulated line light source from a point light source comprising: fiber optic bundle means formed of individual fibers having a first end and a second end, said first end having said individual fibers arranged in a cylindrical array forming a first tip and being disposed to intercept light impinging thereon, said second end having said individual fibers spread to an arrangement of a generally flat line of fibers, said second end being disposed to direct light through said fibers to an optical shutter means; and an optical shutter means, said optical shutter means comprising an array of aperture cells disposed in an aperture region juxtaposed to and substantially aligned with said flat line of fibers, wherein a common optical property of each one of said aperture cells is individually controllable by means of control signals, wherein said cells of said optical shutter means form a substantially straight line wherein electric fields between opposing electrode edges are oriented at forty-five degrees to the straight line of said cells such that each electrode serves two cells and said electric fields in the plane of the electrode are oriented at forty-five degrees to the axis of polarization P1 or P2 of illumination directed through the cells.
Claim 25
Independent Claim
208 words
An apparatus for producing a pixel-modulated line light source from a point light source comprising: fiber optic bundle means formed of individual fibers having a first end and a second end, said first end having said individual fibers arranged in a cylindrical array forming a first tip and being disposed to intercept light impinging thereon, said second end having said individual fibers spread to an arrangement of a generally flat line of fibers, said second end being disposed to direct light through said fibers to an optical shutter means; and an optical shutter means, said optical shutter means comprising an array of aperture cells disposed in an aperture region juxtaposed to and substantially aligned with said flat line of fibers, wherein a common optical property of each one of said aperture cells is individually controllable by means of control signals, wherein said cells of said optical shutter means form a substantially straight line wherein electric fields between opposing electrode edges are oriented at forty-five degrees to the straight line of said cells such that each electrode serves two cells and said electric fields in the plane of the electrode are oriented at forty-five degrees to the axis of polarization P1 or P2 of illumination directed through the cells.
Claim 26
Dependent Claim
157 words
A fiber optic conduit for transmitting optical energy from a point source to a line target comprising: a bundle of individual fibers having a first end and a second end, said first end having said individual fibers arranged in a cylindrical array forming a first tip approximating a point and being disposed to intercept light impinging thereon and originating from a point light source, said second end having said individual fibers spread to an arrangement of a substantially flat line of fibers aligned to direct optical energy through a lens aperture; and rod means comprising an optically transmissive cylinder having a receiving end, a transmitting end and an inner wall, said inner wall being substantially totally internally reflective of light, said rod means being disposed to abut said first tip and aligned to receive impinging light from said point light source and to direct said impinging light into said first tip, said receiving end forming a lens.
Claim 27
Dependent Claim
157 words
A fiber optic conduit for transmitting optical energy from a point source to a line target comprising: a bundle of individual fibers having a first end and a second end, said first end having said individual fibers arranged in a cylindrical array forming a first tip approximating a point and being disposed to intercept light impinging thereon and originating from a point light source, said second end having said individual fibers spread to an arrangement of a substantially flat line of fibers aligned to direct optical energy through a lens aperture; and rod means comprising an optically transmissive cylinder having a receiving end, a transmitting end and an inner wall, said inner wall being substantially totally internally reflective of light, said rod means being disposed to abut said first tip and aligned to receive impinging light from said point light source and to direct said impinging light into said first tip, said receiving end forming a lens.
Claim 28
Dependent Claim
16 words
The apparatus according to claim 24, wherein said rod means has a substantially flat cross section.
Claim 29
Dependent Claim
12 words
The apparatus according to claim 24, wherein said rod means is hollow.
Claim 30
Dependent Claim
15 words
The apparatus according to claim 24, wherein said rod means has a circular cross section.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-22 | 1995-01-21 | 1995-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-22 | 1999-01-21 | 1999-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-22 | 2003-01-21 | 2003-07-23 | $7700.00 | Window Closed / Lapsed |