Flash lamp glass (sic) for electronic flash lamps contains e.g. silicon, boron, aluminum, lithium, sodium, potassium, magnesium, calcium, strontium, barium, titanium, cerium, iron, molybdenum, zirconium and zinc oxides

摘要

Flash lamp glass (sic) for electronic flash lamps comprises a composition (wt.%): SiO 2 (50-70), B 2O 3 (0-20), Al 2O 3 (5-22), Li 2O (less than 1.0), Na 2O (less than 3.0), K 2O (less than 1.0),where Li 2O+Na 2O+K 2O = less than 1.0, MgO (0-8), CaO (0-20), SrO (0-10), BaO (0-30), where MgO+CaO+SrO+BaO = 2-30, TiO 2 (0-1-10), preferably greater than 0.5-10, ZrO 2 (0-3), CeO 2 (0-10), Fe 2O 3 (0-1), WO 2 (0-3), Bi 2O 3 (0-3), MoO 3 (0-3) and ZnO (0-5), where SiO 2+Al 2O 3+B 2O 3 = 55-90 wt.% : An independent claim is included for a light source with a glass cover where the color temperature (sic) is lowered to 900-1200 K by addition of doping agent selected from:TiO 2, Fe 2O 3, CeO 2, and Nb 2O 3.