Invention Grant
- Patent Title: Optical glass
- Patent Title (中): 光学玻璃
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Application No.: US12767109Application Date: 2010-04-26
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Publication No.: US08207074B2Publication Date: 2012-06-26
- Inventor: Kenji Kitaoka
- Applicant: Kenji Kitaoka
- Applicant Address: JP Tokyo
- Assignee: Asahi Glass Company, Limited
- Current Assignee: Asahi Glass Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2009-108052 20090427
- Main IPC: C03C3/16
- IPC: C03C3/16
Abstract:
The present invention relates to an optical glass containing, in terms of mass % on an oxide basis, P2O5: from 10 to 18%; Bi2O3: from 37 to 64%; Nb2O5: from 5 to 25%; Na2O: from more than 4.1 to 10%; K2O: from 0 to 2%; Li2O: from 0 to 0.2%; WO3: from 0 to less than 20%; TiO2: from 0 to 3%; and B2O3: from 0 to 2%, and having a refractive index nd of 1.98 or more and an Abbe's number νd of 20 or less.
Public/Granted literature
- US20100273633A1 OPTICAL GLASS Public/Granted day:2010-10-28
Information query
