Rear Projector Device

PROBLEM TO BE SOLVED: To provide a rear projector device whose screen adjustments can precisely be made. ; SOLUTION: An optical sensor 17 is arranged between a projection lens 2 and a screen 4 in a position where projection light from the projection lens 2 is not in focus to be inserted and extracted, and the optical sensor 17 measures lightnesses for light beams of respective colors R, G, and B transmitted through transmission type color filters 12a, 12b, and 12c. ; COPYRIGHT: (C)2009,JPO&INPIT

Attached files:


Patents:
JP 2,008,310,156

Inventor(s): MORIKAWA HIROYUKI; YAMAGUCHI GAKUO; ONO TOMOTSUGU; ANDO YASUSHI

Type of Offer: Sale



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