Patent US5617152A successfully refreshed from Google Patents.
US5617152A
Expired / Lapsed
US
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Projector system for video and computer generated information
Assignee: Unic View Ltd
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Filing: 1994-06-20
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Granted: 1997-04-01
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Expires: 2014-06-20
Abstract
Abstract A projector for use with a light source and including a shutter assembly panel having a multiplicity of pixel light valves overlying an array of interspersed shutter pixels each of which transmits only one of a plurality of colors, and a color filter disposed intermediate the light source and the planar shutter and spaced therefrom and having an array of interspersed filter pixels, each of which only transmits only one of a plurality of colors, wherein the array of interspersed filter pixels is in light and color registration with the array of interspersed shutter pixels, such that generally light of a given color impinges on a shutter area of the same color.
Inventors
- 👤 Adi Stolov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:25
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/31; H04N9/3141; H04N9/315; G; G03; G03B; G03B21/00; G03B21/14; G03B21/20; G03B21/2066; G03B21/208; G03B21/28; G03B33/00; G03B33/06; G03B33/10; G03B33/12; H04N9/3102; H04N9/3105; H04N9/3108
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
64 words
A radiation reflector for providing generally homogeneous illumination in a plane perpendicular to an axis, the reflector comprising a generally curved reflecting surface formed of a multiplicity of flat surface units, the multiplicity of flat surface units being configured and arranged such that the projection of each of said multiplicity of flat surface units onto a plane perpendicular to said axis is generally identical.
Claim 2
Dependent Claim
64 words
A radiation reflector for providing generally homogeneous illumination in a plane perpendicular to an axis, the reflector comprising a generally curved reflecting surface formed of a multiplicity of flat surface units, the multiplicity of flat surface units being configured and arranged such that the projection of each of said multiplicity of flat surface units onto a plane perpendicular to said axis is generally identical.
Claim 3
Dependent Claim
16 words
Apparatus according to claim 1 and wherein said generally curved reflecting surface comprises a concave surface.
Claim 4
Dependent Claim
17 words
Apparatus according to claim 1 and wherein said generally curved reflecting surface comprises a surface of revolution.
Claim 5
Dependent Claim
17 words
Apparatus according to claim 1 and wherein said generally curved reflecting surface comprises a generally parabolic surface.
Claim 6
Dependent Claim
17 words
Apparatus according to claim 1 and wherein said generally homogeneous illumination is directed generally along said axis.
Claim 7
Dependent Claim
132 words
A compact projection system comprising: a non-homogeneous radiation source; a radiation reflector for providing generally homogeneous non-imagewise illumination in a plane perpendicular to an axis, the reflector comprising a generally curved reflecting surface receiving radiation from said non-homogeneous radiation source, said reflecting surface having a facing edge and being formed of a multiplicity of flat surface units, the multiplicity of flat surface units being configured and arranged such that the projection of each of said multiplicity of said flat surface units onto a plane perpendicular to said axis is generally identical, said radiation reflector being arranged to illuminate a light transmissive object in said plane; lens apparatus for receiving radiation passing through said light transmissive object and focusing said radiation to form an image; and a screen for receiving said focused radiation.
Claim 8
Dependent Claim
132 words
A compact projection system comprising: a non-homogeneous radiation source; a radiation reflector for providing generally homogeneous non-imagewise illumination in a plane perpendicular to an axis, the reflector comprising a generally curved reflecting surface receiving radiation from said non-homogeneous radiation source, said reflecting surface having a facing edge and being formed of a multiplicity of flat surface units, the multiplicity of flat surface units being configured and arranged such that the projection of each of said multiplicity of said flat surface units onto a plane perpendicular to said axis is generally identical, said radiation reflector being arranged to illuminate a light transmissive object in said plane; lens apparatus for receiving radiation passing through said light transmissive object and focusing said radiation to form an image; and a screen for receiving said focused radiation.
Claim 9
Dependent Claim
16 words
Apparatus according to claim 6 and wherein said generally curved reflecting surface comprises a concave surface.
Claim 10
Dependent Claim
17 words
Apparatus according to claim 6 and wherein said generally curved reflecting surface comprises a surface of revolution.
Claim 11
Dependent Claim
17 words
Apparatus according to claim 6 and wherein said generally curved reflecting surface comprises a generally parabolic surface.
Claim 12
Dependent Claim
46 words
Apparatus according to claim 6 and wherein said light transmissive object is located at a distance from the facing edge of the reflecting surface along the axis which is approximately equal to the largest dimension of the opening of the reflecting surface at the facing edge.
Claim 13
Dependent Claim
18 words
Apparatus according to claim 6 and wherein said generally homogeneous non-imagewise illumination is directed generally along said axis.
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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) | 2000-03-31 | 2000-09-30 | 2001-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-03-31 | 2004-09-30 | 2005-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-03-31 | 2008-09-30 | 2009-04-01 | $7700.00 | Window Closed / Lapsed |