JPS55104939A - Production of optical transmission glass - Google Patents

Production of optical transmission glass

Info

Publication number
JPS55104939A
JPS55104939A JP1104779A JP1104779A JPS55104939A JP S55104939 A JPS55104939 A JP S55104939A JP 1104779 A JP1104779 A JP 1104779A JP 1104779 A JP1104779 A JP 1104779A JP S55104939 A JPS55104939 A JP S55104939A
Authority
JP
Japan
Prior art keywords
stuffing
glass
cpd
contg
refractive index
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1104779A
Other languages
Japanese (ja)
Inventor
Minoru Watanabe
Shiro Kurosaki
Yuichi Usui
Shigeo Murai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP1104779A priority Critical patent/JPS55104939A/en
Priority to GB7933527A priority patent/GB2033372B/en
Priority to DE19792939339 priority patent/DE2939339A1/en
Priority to CA000343397A priority patent/CA1160845A/en
Publication of JPS55104939A publication Critical patent/JPS55104939A/en
Priority to US06/295,069 priority patent/US4410345A/en
Pending legal-status Critical Current

Links

Landscapes

  • Glass Melting And Manufacturing (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Glass Compositions (AREA)

Abstract

PURPOSE: To obtain the title glass as an optical transmission fiber base material of high strength by depositing simultaneously or separately a cpd. acting as a viscosity adjusting dopant and a refractive index adjusting stuffing agent in the micropores of a porous glass body.
CONSTITUTION: An SiO2 porous glass body contg. several % of B2O3 is stuffed with a refractive index adjusting stuffing agent such as a hot aq. soln. of CsNO3 or the like and treated with a pure aq. soln. or the like of around room temp. to deposit the agent in the micropores. The stuffed body is then unstuffed to a predetermined concn. distribution with water, alcohol or the like contg. a cpd. such as H3BO4 of this invention or a P-contg. cpd. which is sol. in water, etc. and acts as a dopant lowering the glass viscosity and slightly changing the refractive index. The unstuffed body is dipped in C2H5OH or the like having low solubility to the abovementioned stuffing agents to coprecipitate the agents and treated by a known method to soften clad glass, thus obtaining a high strength fiber base material. The stuffing agents can be deposited separately.
COPYRIGHT: (C)1980,JPO&Japio
JP1104779A 1978-09-28 1979-02-01 Production of optical transmission glass Pending JPS55104939A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1104779A JPS55104939A (en) 1979-02-01 1979-02-01 Production of optical transmission glass
GB7933527A GB2033372B (en) 1978-09-28 1979-09-27 Method of producing an optical waveguide
DE19792939339 DE2939339A1 (en) 1978-09-28 1979-09-28 METHOD FOR THE PRODUCTION OF OPTICAL FIBERS
CA000343397A CA1160845A (en) 1979-01-11 1980-01-10 Method of producing optical waveguide
US06/295,069 US4410345A (en) 1979-01-11 1981-08-21 Method of producing optical waveguide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1104779A JPS55104939A (en) 1979-02-01 1979-02-01 Production of optical transmission glass

Publications (1)

Publication Number Publication Date
JPS55104939A true JPS55104939A (en) 1980-08-11

Family

ID=11767112

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1104779A Pending JPS55104939A (en) 1978-09-28 1979-02-01 Production of optical transmission glass

Country Status (1)

Country Link
JP (1) JPS55104939A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6090514U (en) * 1983-11-29 1985-06-21 カルソニックカンセイ株式会社 exhaust system
JPS6340731A (en) * 1986-07-31 1988-02-22 Seiko Epson Corp Preparation of refractive index dispersion type lens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6090514U (en) * 1983-11-29 1985-06-21 カルソニックカンセイ株式会社 exhaust system
JPS6340731A (en) * 1986-07-31 1988-02-22 Seiko Epson Corp Preparation of refractive index dispersion type lens

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