Patent ID: 7813064
Filing Date: 2010-10-12
Classification: G02B,G03B,H04N

Abstract:
1. A color wheel assembly comprising: a carrier comprising: a locking member lockingly received in the lock-receiving portion; a color filter unit disposed on the main body, wherein the color filter unit is annular in shape and has an inner diameter greatly larger than a diameter of the shaft; an annular positioning portion coaxially protruding outwardly from the main body, the positioning portion being configured for firmly positioning the color filter unit on the main body and driving the color filter to rotate, a height of the positioning portion is less than a thickness of the color filter unit; a coil spring sleeved on the shaft and interposed between the locking member and the color filter unit, the coil spring thereby being adapted to push the color filter unit against the main body; and a ring-shaped cover interposed between the color filter unit and the coil spring for structurally coupling the color filter unit and the coil spring, the cover ring-shaped cover comprising at least one rib formed facing the positioning portion, the positioning portion defining at least one rib-receiving portion therein, respectively cooperating with the at least one rib, to prevent the ring-shaped cover from rotating relative to the carrier.