Invention Grant
- Patent Title: Glass for light guide fiber
- Patent Title (中): 玻璃导光纤维
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Application No.: US13458267Application Date: 2012-04-27
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Publication No.: US08546282B2Publication Date: 2013-10-01
- Inventor: Hiroaki Kinoshita , Anne Jans Faber , Mathi Rongen , Atsushi Goto , Makoto Tanabe , Yuko Katahira
- Applicant: Hiroaki Kinoshita , Anne Jans Faber , Mathi Rongen , Atsushi Goto , Makoto Tanabe , Yuko Katahira
- Applicant Address: JP Tokyo NL VK Delft
- Assignee: Olympus Medical Systems Corp.,Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno
- Current Assignee: Olympus Medical Systems Corp.,Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno
- Current Assignee Address: JP Tokyo NL VK Delft
- Agency: Kenyon & Kenyon LLP
- Priority: JP2010-229985 20101012
- Main IPC: C03C13/04
- IPC: C03C13/04 ; C03C3/076 ; C03C3/062 ; C03C3/068
Abstract:
A glass for a light guide fiber GA1 is used in a core of a fiber 10 of a light guide, and has a refractive index nd between 1.56 and 1.74. The glass for a light guide fiber GA1 has the following composition: (A) SiO2: 20 to 55 wt %, (B11) B2O3: 0 to 2.0 wt %, (B2) does not contain P2O5 and GeO2, (C1) (BaO+SrO+La2O3+Lu2O3+Ta2O5+Gd2O3+WO3): 39 to 46 wt %, (D1) ZnO: 4 to 16 wt %, (E) does not contain Al2O3, (F) does not contain ZrO2, (G) does not contain PbO and As2O3, (H1) (Na2O+K2O): 4 to 10 wt %, (I) Sb2O3: 0 to 0.050 wt %, and (J1) (Na2SO4+K2SO4): 0.32 to 0.78 wt %.
Public/Granted literature
- US20120302423A1 Glass for Light Guide Fiber Public/Granted day:2012-11-29
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