FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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The patent describes an optical glass which contains SiO2, B2O3, GA2O3, NA2O, LI2O. A noncrystallizing glass with shortened partial dispersion in the blue portion of the spectrum is produced by using in wt SiO2--30-60 B2O3--less than 12 GA2O3--30-40 NA2O--less than 8 LI2O--less than 5 and in addition BaO and ZnO--2-10.
- Ceramics, Refractories and Glass