Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masahiko Yatsu0
Shuji Kato0
Date of Patent
January 28, 2020
0Patent Application Number
155200800
Date Filed
January 28, 2015
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The purpose of the present invention is to provide an optical device capable of rotationally adjusting a lens system with a flare-cut member incorporated therein. For this purpose, the flare-cut member according to the present invention is characterized by including a light shield surface for shielding the light flux incident on the periphery of a lens, and an opening formed in the light shield surface and causing the light flux incident on a lens element to pass therethrough, wherein the opening is formed in a rotationally symmetrical shape.
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