公开(公告)号：US5457578A

公开(公告)日：1995-10-10

申请号：US304276

申请日：1994-09-12

Applicant: Herry Peng

Inventor： Herry Peng

IPC: G02B7/00 ,  G02B5/22

CPC classification number: G02B26/007

Abstract: A color filter moving apparatus for moving a color filter comprising a base and a filter frame. The base is provided with (1) a side flange integrally formed on a lateral side of the base; (2) a motor mounted on a lateral wall of the side flange, the motor having an axle penetrating through the lateral wall so as to allow a gear to be attached thereto; and (3) two protrudent flanges formed on the two ends, respectively, of the base, each protrudent flange having a stud opening. The filter frame is provided with (1) a side wall, a bottom, and a top wall, the top wall having an outer face and an inner face; (2) at least one frame rack formed on the side wall of the filter frame for holding a color filter; and (3) a gear track formed on the inner face of the top wall engageable with the gear attached to the axle of the motor. The apparatus further comprises (1) a guiding rod having two ends and a stud on each of the ends thereof, the studs being engageable with the two stud openings, respectively, of the protrudent flanges so as to allow the guiding rod to be disposed between the two protrudent flanges; (2) a plurality of axle sleeves affixed to the bottom of the filter frame which are engageable with the guiding rod so as to allow the filter frame to travel closely along the guiding rod; (3) a longitudinal protrusion formed on the outer face of the top wall of the filter frame, the longitudinal protrusion being disposed closely between the top wall of the filter frame and the top wall of the side flange; (4) a protrudent stud formed on the top wall of the side flange which, in cooperation with the longitudinal protrusion, limits the swaying of the filter frame; and (5) a spring clip adapted to latch about one of the protrudent flanges, the spring clip having an opening engageable with one of the stud of the guiding rod so as to facilitate an easy assembly and dis-assembly of the guiding rod, and therefor the filter frame, with respective to the base.