Illumination system and method for spatial modulators

Details Illumination system and method for spatial modulators Illumination system and method for spatial modulators

1999-04-13

2000-10-24

Mack, Ricky

Optical: systems and elements

Single channel simultaneously to or from plural channels

G02B 2710

Patent

active

061376310

ABSTRACT:
The present invention is directed to a system and a method for illuminating imaging radiant energy from a laser source onto a spatial modulator. It comprises means or a step of focusing the radiant energy from the laser source at a focal point. There is further provided a mixing means mixing the radiant energy substantially at or downstream the focal point, the mixing means having an input, a plurality of reflecting surfaces and an output, wherein the reflecting surfaces are arranged so that upon entry of the radiant energy into the input of the mixing means the radiant energy is subjected to multiple reflections and at the output the distribution of the radiant energy is substantially uniform.

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patent: 5923475 (1999-07-01), Kurtz et al.

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