Title:
OPTICAL TRANSMISSION FIBER GLASS AND OPTICAL TRANSMISSION FIBER
Document Type and Number:
WIPO Patent Application WO/2019/194086
Kind Code:
A1
Abstract:
Provided is an optical transmission fiber glass characterized in that the fiber glass substantially does not contain Pb, As, or Ti; has a refractive index nd in the range from 1.60 to 1.70; and contains as glass components at least SiO2, B2O3, BaO, La2O3, ZrO2, and ZnO, wherein, expressed in mass%, the total content of the SiO2 and B2O3 is 25% to 50%, the content of BaO is 10% to 50%, and the content of La2O3 is 6% to 30%.
Inventors:
HACHITANI YOICHI (JP)
Application Number:
PCT/JP2019/013960
Publication Date:
October 10, 2019
Filing Date:
March 29, 2019
Export Citation:
Assignee:
HOYA CORP (JP)
International Classes:
C03C13/04; G02B6/02
Domestic Patent References:
WO2017134702A1 | 2017-08-10 | |||
WO2011052688A1 | 2011-05-05 |
Foreign References:
JP2017193460A | 2017-10-26 | |||
JP2004010365A | 2004-01-15 |
Attorney, Agent or Firm:
KAMIMURA Yoichiro (JP)
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