Projector that automatically adjusts the projection parameters

Details Projector that automatically adjusts the projection parameters Projector that automatically adjusts the projection parameters

G - Physics

03

B

G03B 21/14 (2006.01) H04N 9/31 (2006.01)

Patent

CA 2276484

A projector 100 projects an image onto a screen 200 by having light from a light source 111 pass through light valves 108 ~ 110 corresponding to RGB colors and a projection lens 101. A special pattern is displayed on the light valves 108 ~ 110 so that an image of the special pattern is projected onto the screen 200. The projector includes a half mirror 112 that directs light, which has been reflected back off this image on the screen 200 and back through the light valves 108 ~ 110, toward the collective lens 113, and a light detecting element 114 for detecting the intensity of the light collected by the collective lens 113. Based on the detected intensity, the microcomputer 116 automatically adjusts the projection parameters of the projector 100.

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