- 专利标题: OPTICAL GLASS AND OPTICAL MEMBER
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申请号: US16868743申请日: 2020-05-07
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公开(公告)号: US20200325063A1公开(公告)日: 2020-10-15
- 发明人: Shinichi AMMA , Tatsuo NAGASHIMA
- 申请人: AGC Inc.
- 申请人地址: JP Tokyo
- 专利权人: AGC Inc.
- 当前专利权人: AGC Inc.
- 当前专利权人地址: JP Tokyo
- 优先权: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@15991457
- 主分类号: C03C3/097
- IPC分类号: C03C3/097 ; C03C3/064 ; C03C3/062 ; C03C4/02 ; G02B1/11
摘要:
To provide optical glass having high refractive index and low density and having favorable production properties.An optical glass having refractive index (nd) of from 1.71 to 2.00, density of at most 5.0 g/cm3, a temperature at which the viscosity of the glass is log η=2 of from 750 to 1,200° C. and devitrification temperature of at most 1,300° C., and containing from 0% to 21.5% of TiO2 as represented by mol % based on oxides. The optical glass has high refractive index and low density, has favorable production properties, and is suitable as an optical member for wearable devices, for vehicles, for robots, etc.