Long life halogen cycle incandescent lamp and glass envelope...

Details Long life halogen cycle incandescent lamp and glass envelope... Long life halogen cycle incandescent lamp and glass envelope...

C - Chemistry, Metallurgy

03

C

C03C 3/091 (2006.01) H01K 1/32 (2006.01)

Patent

CA 2625915

An aluminosilicate glass having a reduced affinity for halogens, comprising, in weight percent: from >58 to about 64% SiO2, from about 14 to about 17.5W Al2O3; from 0.2 to 0.7% B2O3, from 1 to about 7% MgO, from about 5.5 to about 14% CaO, from about 6 to about 17% BaO, and from 0 to about 8% SrO.

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