Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
August 24, 2010
Patent Application Number
11376137
Date Filed
March 16, 2006
Patent Primary Examiner
Patent abstract
A plastic lens, which does not require a modification to an inner diameter of a mirror frame but is uniform in outer diameter, is provided and include: protrusions on the circumference in at least three points divided thereof into three equal parts except for an injection gate point, in positions equally distant to a center O of the plastic lens. The protrusions have respective outer surfaces provided as fit portions to a mirror frame. The plastic lens preferably has a diameter of 50 mm or more and a thickness smallest at the center thereof.
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