Moldable fluoroborate optical glasses

Details Moldable fluoroborate optical glasses Moldable fluoroborate optical glasses

1983-07-28

1984-09-04

Bell, Mark

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 50, 501 51, 501 75, 501 76, 501 78, 501903, C03C 300, C03C 330

Patent

active

044698003

ABSTRACT:
This invention is concerned with the preparation of moldable optical glasses having refractive indices of about 1.65-1.735, dispersions of about 38-58, transition temperatures lower than about 500.degree. C., softening points lower than about 600.degree. C., and satisfactory chemical durability consisting essentially, expressed in terms of parts by weight as calculated from the batch, of

REFERENCES:
patent: 2764492 (1956-09-01), Weissenberg et al.
patent: 4118238 (1978-10-01), Ishibashi et al.
patent: 4128432 (1978-12-01), Komorita et al.

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