Highly prefractive, low dispersion optical glass suitable for mu

Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...

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501903, C03C 308, C03C 310

Patent

active

045073937

ABSTRACT:
An ophthalmic glass particularly useful as a segment glass consists essentially of, in weight percent:

REFERENCES:
patent: 2214385 (1940-09-01), Scott et al.
patent: 2523265 (1950-09-01), Armistead
patent: 3740242 (1973-06-01), Faulstich et al.
patent: 4066464 (1978-01-01), Faulstich et al.
patent: 4213787 (1980-07-01), Faulstich et al.
patent: 4351906 (1982-09-01), Boudot

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