发明名称 Lens assembly
摘要 A lens assembly comprises a lens group M and a lens frame 1 for retaining the lens group M. In this lens assembly, the lens frame 1 has an entire circumference support 2b for supporting the rim on the subject side, of each lens M, across the entire circumference thereof, and an end face support 2a for supporting the lens M on the image side. Each lens M comprises a chamfer 3b formed at a rim of a lens surface on the subject side across the entire circumference thereof, and the entire circumference support 2b supports the chamfer 3b such that the entire circumference support 2b is continuous with the lens surface at substantially the same radius of curvature with the lens surface. According to the present invention, there is provided a lens assembly which can reduce size and cost and has stable lens retaining ability.
申请公布号 US7969667(B2) 申请公布日期 2011.06.28
申请号 US20090462064 申请日期 2009.07.28
申请人 OLYMPUS IMAGING CORP. 发明人 SODEYAMA TOSHIYA;TANABE YASUTAKA;ICHIKAWA HIDEAKI
分类号 G02B7/02;G02B9/00 主分类号 G02B7/02
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