Compositions: ceramic – Ceramic compositions – Devitrified glass-ceramics
Patent
1994-08-25
1995-05-30
Group, Karl
Compositions: ceramic
Ceramic compositions
Devitrified glass-ceramics
501 57, 501 60, 501 64, 501 74, C03C 3112
Patent
active
054200806
ABSTRACT:
A high efficiency wavelength up-conversion transparent glass ceramics composition is provided containing a rare earth ion, which can be applied to short wavelength solid lasers, full color displays, infrared light detecting sensors, etc. The ceramic composition has the following chemical composition, in which fluoride fine crystals containing rare earth ions are preferentially precipitated:
REFERENCES:
patent: 4537864 (1985-08-01), Tick
patent: 4752593 (1988-06-01), Tick
Ohwaki Junichi
Wang Yuhu
Group Karl
Nippon Telegraph and Telephone Corporation
Sumita Optical Glass Inc.
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