Optical projection system and method

Details Optical projection system and method Optical projection system and method

2006-08-08

2006-08-08

Perkey, W. B. (Department: 2851)

Optics: image projectors

Composite projected image

Multicolor picture

C353S020000, C353S034000, C353S037000, C353S051000, C353S073000, C353S081000, C353S082000, C353S084000, C348S086000, C348S193000, C359S583000, C359S584000, C359S490020, C359S589000, C359S629000, C359S639000

Reexamination Certificate

active

07086738

ABSTRACT:
An optical projection system has a parallel light source for producing a parallel light beam. A first color splitter splits the parallel light beam into a first color beam and a color mixing beam. The color mixing beam includes a second color beam and a third color beam. A first both-side telecentric group is disposed on a first light path of the first color beam, so as to transform into a first light beam. A second both-side telecentric group is disposed on a second light path of the color mixing beam. A second color splitter is disposed on the second light path to split the color mixing beam into a second light beam and a third light beam. A light-combining unit receives the first, second, and third light beams and combines into a mixed beam. Then the mixed beam is projected.

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patent: 2005/0024591 (2005-02-01), Lian et al.
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