Invention Grant
- Patent Title: Optical component and method for producing the same
- Patent Title (中): 光学部件及其制造方法
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Application No.: US12840702Application Date: 2010-07-21
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Publication No.: US08174770B2Publication Date: 2012-05-08
- Inventor: Toru Nanba , Tetsuya Suzuki , Toshiaki Takano , Tomokazu Tokunaga
- Applicant: Toru Nanba , 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: JP2009-173476 20090724
- Main IPC: G02B3/00
- IPC: G02B3/00
Abstract:
A concave lens as an optical component is made of glass containing 20 to 22% of B2O3, 30 to 40% of La2O3, and 19 to 25% of ZnO, expressed as wt %. The concave lens has a thickness t1 in its center portion of 0.5 mm or less, and a ratio (W/t1) of a diameter W with respect to the thickness t1 of 24 or more. The concave lens can be produced suitably by press forming.
Public/Granted literature
- US20110019286A1 OPTICAL COMPONENT AND METHOD FOR PRODUCING THE SAME Public/Granted day:2011-01-27
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