Image projection system

Details Image projection system Image projection system

2008-07-22

2008-07-22

Blackman, Rochelle-Ann (Department: 2862)

Optics: image projectors

Composite projected image

Multicolor picture

C353S033000, C353S034000, C353S084000, C353S085000, C353S094000, C348S750000, C348S757000, C348S758000, C348S771000, C348S801000, C349S008000, C359S634000, C359S638000, C359S640000, C362S231000, C362S555000, C362S800000

Reexamination Certificate

active

07401925

ABSTRACT:
An image projector system includes an LED controller and first and second LEDs, a dichroic mirror. The LED controller controls the first and the second LED to emit first and second color lights, respectively. The second color light is of high luminance and is decomposed by a dichroic mirror into third and forth color lights having luminance close to that of the first color light. Each color light is guided through a light valves to adjust the spectral transmittance of the color light. A light-combining device, such as an x-cube, receives and combines the first color light, the third color light, and the forth color light, to form light images, and transmits the images to a display through a projector lens.

REFERENCES:
patent: 5580142 (1996-12-01), Kurematsu et al.
patent: 6545814 (2003-04-01), Bartlett et al.
patent: 6726329 (2004-04-01), Li et al.
patent: 2003/0142275 (2003-07-01), Yoshida

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