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US 6,594,090 B2Granted
Laser projection display system
AssigneeEastman Kodak Company
InventorsBrian E. Kruschwitz, Andrew F. Kurtz
Life of this patent
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Abstract
A display apparatus, includes a laser light source for emitting a light beam; a beam expander for expanding the light beam; a spatial light modulator; beam shaping optics for shaping the expanded laser beam to provide uniform illumination of the spatial light modulator, the beam shaping optics including a fly's eye integrator having an array of lenslets; and a moving diffuser located in the laser beam between the laser light source and the spatial light modulator.
Claims35
Display apparatus, comprising:
- (a) a laser light source for emitting a light beam;
- (b) a beam expander for expanding the light beam;
- (c) a spatial light modulator;
- (d) beam shaping optics for shaping the expanded laser beam to provide uniform illumination of the spatial light modulator, the beam shaping optics including a fly's eye integrator having an array of lenslets;
- and
- (e) a moving diffuser located in the laser beam between the laser light source and the spatial light modulator.
3 more elements
Dependencies are inferred from the claim text.