SYNTHETIC SILICA GLASS OPTICAL MEMBERS AND PROCESS FOR THE PRODUCTION THEREOF

A process for producing a synthetic silica glass optical component which contains at least 1x10 molecules/cm and has an OH concentration of at most 200 ppm and substantially no reduction type defects, by treating a synthetic silica glass having a hydrogen molecule content of less than 1x10 molecules...

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Bibliographic Details
Main Authors YOSHIZAWA, SHUHEI, KIKUGAWA, SHINYA, MASUI, AKIO, SHIMODAIRA, NORIAKI, IKUTA, YOSHIAKI
Format Patent
LanguageEnglish
French
German
Published 11.04.2001
Edition7
Subjects
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
GLASS
JOINING GLASS TO GLASS OR OTHER MATERIALS
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
METALLURGY
MINERAL OR SLAG WOOL
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
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Summary:A process for producing a synthetic silica glass optical component which contains at least 1x10 molecules/cm and has an OH concentration of at most 200 ppm and substantially no reduction type defects, by treating a synthetic silica glass having a hydrogen molecule content of less than 1x10 molecules/cm at a temperature of from 300 to 600 DEG C in a hydrogen gas-containing atmosphere at a pressure of from 2 to 30 atms.
Bibliography:Application Number: EP19990901911