Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Rong-Qiang Gao0
Date of Patent
March 1, 2011
0Patent Application Number
125447990
Date Filed
August 20, 2009
0Patent Primary Examiner
Patent abstract
A lens cover is slidably mounted to a lens, the lens cover comprises a main body, two guiding plated. The two guiding plates respectively protrude outwardly from two opposite side of the main body. Each guiding plate has a plurality of contacting portions. Each guiding plate has a plurality of contacting portions protruding from an surface thereof facing the lens, and each contacting portion includes a rolling ball mounted thereon.
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