Mother glass composition for graded index lens, graded index...

Details Mother glass composition for graded index lens, graded index... Mother glass composition for graded index lens, graded index...

2005-04-05

2009-08-18

Group, Karl E (Department: 1793)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S055000, C501S063000, C501S064000, C501S065000, C501S066000, C501S067000, C065S030130

Reexamination Certificate

active

07576021

ABSTRACT:
A mother glass composition for graded index lenses, comprising the following glass components in mol %: 40≦SiO2≦65, 1≦TiO2≦10, 0≦MgO≦22, 2≦Li2O≦18, 2≦Na2O ≦20, 6≦Li2O+Na2O≦38, and from 0.1 to 15 mol % of any two or more of CaO, SrO and BaO, a graded index lens using the mother glass composition, a manufacturing method of the graded index lens, and an optical product and an optical instrument using the graded index lens, are provided.

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Japanese Office Action dated Jan. 10, 2007.

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