Compositions: ceramic – Ceramic compositions – Devitrified glass-ceramics
Reexamination Certificate
2005-12-27
2005-12-27
Group, Karl (Department: 1755)
Compositions: ceramic
Ceramic compositions
Devitrified glass-ceramics
C501S059000
Reexamination Certificate
active
06979661
ABSTRACT:
A birefringent glass composed of a phase-separated glass is provided. The phase-separated glass includes a borosilicate glass in which fluorine and a constituent that tends to crystallize into a high refractive index phase as a consequence of phase separation are included. In one embodiment, the constituent comprises TiO2.
REFERENCES:
patent: 5375012 (1994-12-01), Borrelli et al.
patent: 5627676 (1997-05-01), Borrelli et al.
Borrelli Nicholas F.
Hares George B.
Powley Mark L.
Schroeder Joseph F.
Corning Incorporated
Douglas Walter M.
Group Karl
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