Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Akio Koike0
Yasutomi Iwahashi0
Date of Patent
November 13, 2007
0Patent Application Number
114358870
Date Filed
May 18, 2006
0Patent Primary Examiner
Patent abstract
A silica glass containing from 3 to 10 mass % of TiO2, which has a coefficient of thermal expansion from 0 to 100° C., i.e. CTE0 to 100, of 0±300 ppb/° C. and an internal transmittance per mm in thickness within a wavelength region of from 200 to 700 nm, i.e. T200 to 700, of at most 80%.
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