Incandescent lamp

Details Incandescent lamp Incandescent lamp

H - Electricity

01

K

313/172.11

H01K 1/32 (2006.01)

Patent

CA 1202359

ABSTRACT OF THE DISCLOSURE An incandescent lamp has a bulb with a built-in filament therein, and an infrared ray reflection film formed on one or both of the outer and inner surfaces of the bulb and containing a metal oxide. At least 50% of the film is of non-crystalline oxide so as to provide a film with good transmittance of visible light, good reflectance of infrared rays, and high resistance to separation from the bulb.

437535

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