Silica glass article and manufacturing process therefor
AssigneeSumitomo Electric Industries, Ltd.
InventorsAkira Urano, Toshio Danzuka, Tatsuhiko Saito, Yasuhiko Shishido, Masaharu Mogi, Michihisa Kyoto
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Abstract
A process of manufacturing a silica glass article comprising the steps of: (1) irradiating a silica glass article with electromagnetic waves to generate defects therein; and (2) immersing the thus irradiated silica glass article in an atmosphere comprising a hydrogen gas, thereby providing the resulting silica glass article with a characteristic that is effective for preventing it substantially from increasing its absorption within an ultraviolet region due to ultraviolet ray irradiation. Also disclosed are a silica glass article or a glass fiber produced according to the manufacturing process.
Claims11
A process of manufacturing a silica glass article comprising the steps of:
- (1) irradiating a silica glass article serving as a raw material with electromagnetic waves to generate defects therein;
- and
- (2) immersing the thus irradiated silica glass article in an atmosphere comprising a hydrogen gas, thereby providing the resulting silica glass article with a characteristic that is effective for preventing it substantially from increasing its absorption within an ultraviolet region due to ultraviolet ray irradiation.
Dependencies are inferred from the claim text.