Optical glass

Compositions: coating or plastic – Coating or plastic compositions – Metal-depositing composition or substrate-sensitizing...

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106 54, C03C 308, C03C 314

Patent

active

042266270

ABSTRACT:
An optical glass of a B.sub.2 O.sub.3 --SiO.sub.2 --La.sub.2 O.sub.3 --Yb.sub.2 O.sub.3 system and additionally containing SnO.sub.2 is stable in spectral transmissivity, is scarcely liable to tinting and has high refractive and low dispersive characteristics.

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patent: 4118238 (1978-10-01), Ishibashi et al.
patent: 4119471 (1978-10-01), Komorita et al.
patent: 4120732 (1978-10-01), Komorita et al.
patent: 4128432 (1978-12-01), Komorita et al.

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