Specifications for optical materials are tightening because of demands for higher performance in optical systems. In this paper the vitrification and the properties of the glasses in new born-lanthanum systems: B2O3-La2O3-SrF2 (system 1) and B2O2-La2O3-YF3 (system 2), in which the optimum compositions for glasses have been identified, that can be used routinely in cinematography, have been examined.
Origin
All-Union Scientific Centre & Vavilov State Optical Inst, Russia
Journal Title
Glass & Ceramics 48 11-12 1991 498-502
Sector
Flat glass
Class
F 466