Invention Grant
- Patent Title: Optical glass
- Patent Title (中): 光学玻璃
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Application No.: US11133500Application Date: 2005-05-20
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Publication No.: US07659222B2Publication Date: 2010-02-09
- Inventor: Koji Shimizu
- Applicant: Koji Shimizu
- Applicant Address: JP Kanagawa-Ken
- Assignee: Kabushiki Kaisha Ohara
- Current Assignee: Kabushiki Kaisha Ohara
- Current Assignee Address: JP Kanagawa-Ken
- Agency: Hedman & Costigan, P.C.
- Agent James V. Costigan
- Priority: JP2004-164762 20040602
- Main IPC: C03C3/068
- IPC: C03C3/068
Abstract:
An optical glass comprising SiO2, B2O3 and La2O3 and one or more oxides selected from the group consisting of ZrO2, Nb2O5 and Ta2O5, having a refractive index of 1.83 or over and an Abbe number of 35 or over and being free of F.
Public/Granted literature
- US20050272589A1 Optical glass Public/Granted day:2005-12-08
Information query
