Zirconium-containing borosilicate glasses

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

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106 52, 106 53, 106 54, C03C 308, C03C 330

Patent

active

042004675

ABSTRACT:
Disclosed are zirconium-containing borosilicate glass compositions having a refractive index n.sub.e between 1.55 and 1.72, and Abbe number .nu..sub.e between 50 and 34 and a negative anomalous partial dispersion value .DELTA..nu..sub.e between -3.0 and -7.7. Also disclosed is a process for the production of such glass compositions.

REFERENCES:
patent: 3529980 (1970-09-01), Bromer et al.
patent: 3999997 (1976-12-01), Faulstich et al.
patent: 4055435 (1977-10-01), Sagara
patent: 4084978 (1978-04-01), Sagara

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