Incandescent electric lamp with etalon type transparent heat mir

Details Incandescent electric lamp with etalon type transparent heat mir Incandescent electric lamp with etalon type transparent heat mir

1981-08-11

1983-10-11

Smith, Alfred E.

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Reflector

313 37, H01J 516, H01J 6140, H01K 126, H01K 130

Patent

active

044095120

ABSTRACT:
An incandescent lamp utilizing an etalon type transparent heat mirror on the lamp envelope for transmitting radiation in the visible range produced by the lamp filament and reflecting infrared thermal radiation back to the filament for increasing its temperature and thereby increasing its efficiency.

REFERENCES:
patent: 3188513 (1965-06-01), Hansler
patent: 3682528 (1972-08-01), Apfel et al.
patent: 3719901 (1973-03-01), Monchamp et al.
patent: 3846152 (1974-11-01), Franz
patent: 4017758 (1977-04-01), Almer et al.

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