Patent ID: 6778338
Filing Date: 2004-08-17
Classification: G02B

Abstract:
A shield assembly for a built-in lens set, located in a housing with the lens set consisting of an optical head with an outer rim, the housing having an aperture corresponding to the optical head and an inner rim extending to form a protrusive enclosure of the aperture, the shield assembly comprising:a shield ring, formed in an annular ring surrounding outer peripheral areas of the optical head and the protrusive enclosure, further including a connecting end, a movable end corresponding to the connecting end, and an outer rim connecting the movable end and the connecting end, the connecting end being fixedly coupled with the optical head, the movable end being movably coupled with the protrusive enclosure; and an elastic connecting unit for providing extensible connecting function between the shield ring and the housing, further including a first end and a second end, the first end being fixedly mounted to the outer rim of the shield ring, the second end being fixedly mounted to the inner rim of the housing.