US Patent No: 7,012,659
Number of patents in Portfolio can not be more than 2000
Image replication system having focusing means to receive reflected light through lightguide from spatial light modulator
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Mar 14, 2006
Issued date -
Jun 19, 2002
filing date -
10/481,216
serial no -
In Force
status
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Abstract
The present invention relates, in one aspect to an image replication system comprising a light guide (2), a light source (8) arranged to direct emitted light into the first end (2a) of a light guide (2), a reflective spatial light modulator (6) and focussing means (16). In a preferred embodiment, the light guide (2) is in the form of an elongate glass rod having first and second parallel polygonal end faces (2a, 2b) which are parallel to the long axis of the rod, the rod having a uniform polygonal cross section along its length. The spatial light modulator (6) is optically coupled to the second end face (2b) of the light guide (2) and the focussing means (16) is arranged to receive light reflected back through the rod from the spatial light modulator (6), whereby to form multiple images of said spatial light modulator in an image plane (18).
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 6,753,990 Holographic displays | 12 | 2002 | |
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| 5,164,848 Helmet mounted display | 67 | 1990 | |
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| 5,353,150 Gain homogenization apparatus and method for use in stimulated scattering of beams with non-uniform spatial intensity distribution | 5 | 1992 | |
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| 5,621,486 Efficient optical system for a high resolution projection display employing reflection light valves | 63 | 1995 | |
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| 5,485,291 Uniformly thin, high efficiency large area lighting panel with two facet grooves that are spaced apart and have light source facing facets with smaller slopes than the facets facing away from the light source | 124 | 1994 | |
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| 5,680,257 Light collection optics for spatial light modulator | 21 | 1995 | |
Patent Citation Ranking
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