Accession Number : AD0705026

Title :   OPTICAL GLASS,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Mukhin,E. Ya. ; Shmatok,L. K.

Report Date : 17 MAR 1970

Pagination or Media Count : 6

Abstract : Optical glass having a low tendency to devitrification contains 26-30% 7.B2O3, 26-29% La2O3, 29-32% ZnO, 5.5-6.5% SiO2, 1-3% ZnO2 and 5-10% Ga 2O3. The glass may also contain not more than 2% TiO2 and not more than 5% Nb2O5. The glass is melted by induction in a platinum crucible. Its coefficient of refraction is between 1.71-1.76 and its coefficient of dispersion between 50.0-44.6. (Author)

Descriptors :   (*OPTICAL GLASS, PATENTS), CRYSTALLIZATION, MELTING, OXIDES, BORON COMPOUNDS, LANTHANUM COMPOUNDS, USSR

Subject Categories : Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE