Electric lamp with adhesion layer and interference layer

Details Electric lamp with adhesion layer and interference layer Electric lamp with adhesion layer and interference layer

1995-08-18

1997-10-21

O'Shea, Sandra L.

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

513112, 359359, 359586, H01J 516

Patent

active

056800010

ABSTRACT:
The electric lamp has a quartz glass lamp vessel in which a light source is accommodated. The lamp vessel is covered by an interference film which has layers of alternatingly silica and a material of relatively high refractive index. A silica containing adhesive layer is in between the lamp vessel and the film. The adhesive layer has a content of boron oxide and/or phosphorus oxide.

REFERENCES:
patent: 4701663 (1987-10-01), Kawakatsu et al.
patent: 4734614 (1988-03-01), Kuus
patent: 4775203 (1988-10-01), Vakil et al.
patent: 4940636 (1990-07-01), Brock et al.
patent: 5138219 (1992-08-01), Krisl et al.
"Applications of Thin Film Reflecting Coating Technology to Tungsten Filament Lamps", by R.S. Bergman et al, IEEE Proc.-A, vol. 140, No. 6, Nov. 1993.
Coaton, "Editorial Light Sources", IEE Proceeding-A, vol. 140, No. 6, Nov. 1993, pp. 417-428.

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