Fluorosphosphate optical glass

Details Fluorosphosphate optical glass Fluorosphosphate optical glass

1989-11-22

1991-05-21

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501902, C03C 3247, C03C 317, C03C 400

Patent

active

050175203

ABSTRACT:
A fluorophosphate optical glass having optical constants, i.e. a refractive index of 1.45 to 1.54 and an Abbe number of 75 to 90, preferably 75 to 89.5, useful as a lens for an optical instrument to obtain a good quality image, is provided, which has a chemical composition (% by mole) comprising:

REFERENCES:
patent: 3847624 (1974-11-01), Broemer et al.
patent: 4427784 (1984-01-01), Nakamura et al.
patent: 4808556 (1989-02-01), Sawanobori et al.
patent: 4857487 (1989-08-01), Broemer et al.
patent: 4859635 (1989-08-01), Meinert et al.

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