Invention Grant
- Patent Title: Cemented optical element
- Patent Title (中): 水泥光学元件
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Application No.: US12837038Application Date: 2010-07-15
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Publication No.: US08331045B2Publication Date: 2012-12-11
- Inventor: Tetsuya Suzuki , Toshiaki Takano , Tomokazu Tokunaga
- Applicant: Tetsuya Suzuki , Toshiaki Takano , Tomokazu Tokunaga
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: JP2009-168589 20090717
- Main IPC: G02B9/00
- IPC: G02B9/00

Abstract:
A cemented optical element includes a convex lens and a concave lens. The convex lens has a first convex surface and a second convex surface that are rotationally symmetric with respect to an optical axis. The convex lens has an edge with a thickness of substantially zero. The concave lens has a concave surface bonded to the first convex surface of the convex lens. Preferably, the peripheral portion of the concave lens extends radially outwardly beyond the convex lens to the extent that it is located within an area surrounded by an extension zone of the second convex surface of the convex lens.
Public/Granted literature
- US20110013294A1 CEMENTED OPTICAL ELEMENT Public/Granted day:2011-01-20
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