Acousto-optic beam steering modulator for a projection system
AssigneeDolby Laboratories Licensing Corporation
InventorMartin J. RICHARDS
Life of this patent
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Abstract
An Acoustic-Optic A/O device receives light from a source and deflecting the light onto the second A/O device which may be a multi-stacked set of individual A/O devices. The first and second devices may deflected light according to control signals. Also, a multi-modulator projector display system including a light source, controller, an A/O modulator illuminated by the light source and capable of deflecting light according to controller signals, a second modulator illuminated by light from said A/O modulator and capable of modulating the A/O modulated light, said second modulator comprising a plurality of mirrors, and said second modulator capable of modulating the light according to controller signals.
Claims2
A projection system for higher contrast images, said projection system comprising:
- a light source, the light source includes a plurality of colored laser light sources;
- a controller;
- an A/O modulator, said A/O modulator being illuminated by said light source and deflecting light from said light source according to first control signals from said controller;
- and
- a second modulator, said second modulator being illuminated by light from said A/O modulator and modulating the light from said A/O modulator, and said second modulator comprising a plurality of mirrors,
- wherein the projection system produces a highlight, a luminance level of the highlight being unequal to full screen luminance.
Dependencies are inferred from the claim text.