Illumination system for high resolution display systems

Details Illumination system for high resolution display systems Illumination system for high resolution display systems

1999-01-11

2000-07-04

Ben, Loha

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359618, 359629, 359634, 362268, 355 67, G02B 2600

Patent

active

060847034

ABSTRACT:
An optical system for a spatial light modulator display system. The system includes a light integrator (20), the image of which is to be reproduced on at least one spatial light modulator (44). At least two vignetting apertures (24, 38) are used to frame light from said integrator (20), prior to reaching said modulator or modulators (44). The vignetting apertures(24, 38) reduce stray light and maintain uniformity and telecentricity of the system. This allows the system to use smaller optics for larger spatial light modulators that would normally require large optics, making the system cost prohibitive and of poor performance.

REFERENCES:
patent: 4939630 (1990-07-01), Kikuchi et al.
patent: 5914817 (1999-06-01), Browning et al.
Sony Corporation Brochure, 1998.

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