Invention Grant
- Patent Title: Optical glass and optical element
- Patent Title (中): 光学玻璃和光学元件
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Application No.: US12009814Application Date: 2008-01-22
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Publication No.: US07704904B2Publication Date: 2010-04-27
- Inventor: Akio Oogaki
- Applicant: Akio Oogaki
- Applicant Address: JP Hachioji-shi
- Assignee: Konica Minolta Opto, Inc.
- Current Assignee: Konica Minolta Opto, Inc.
- Current Assignee Address: JP Hachioji-shi
- Agency: Sidley Austin LLP
- Priority: JP2007-013429 20070124
- Main IPC: C03C3/15
- IPC: C03C3/15 ; C03C3/155 ; C03C3/066 ; C03C3/068
Abstract:
An optical glass contains as glass ingredients, by weight: 0-8% SiO2; 34.5-46% B2O3; 2.6-6% Li2O; 21-38% ZnO; 0-40% La2O3; 0-35% Gd2O3; and 0-15% Y2O3, with the total content of La2O3+Gd2O3+Y2O3 accounting for 10-40%. The optical glass also has a predetermined index of refraction and a predetermined dispersion.
Public/Granted literature
- US20080176734A1 Optical glass and optical element Public/Granted day:2008-07-24
Information query
