Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Naoki Sasaki0
Date of Patent
February 22, 2011
0Patent Application Number
123959010
Date Filed
March 2, 2009
0Patent Primary Examiner
Patent abstract
Taking lenses 11—4, 11—3, and 11—2 are housed in a lens frame 12. Then, the O-ring 13 is fitted into a groove 11—1a provided on the periphery of the taking lens 11—1, and the taking lens 11—1 is housed in the lens frame 12. Subsequently, an anterior surface 14b of a lens holder 14 in a screwing direction (directions of arrows P and P′) comes into contact with a wall surface 12b of the lens frame 12. Then, the lens holder 14 is gradually screwed into the lens frame 12. Thereby, a deformable portion 12c of the lens frame 12 on an O-ring 13 side of the wall surface 12b is deformed in such a direction (directions of arrows Q and Q′) as to press the O-ring 13.
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