Lamp having boron nitride reflective coating

Details Lamp having boron nitride reflective coating Lamp having boron nitride reflective coating

1991-09-30

1992-12-01

Yusko, Donald J.

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Reflector

313 47, 313578, 362296, H01J 516, H01K 132

Patent

active

051681935

ABSTRACT:
A coating of boron nitride disposed on a lamp arc tube or filament tube provides an integral reflector for reflecting light and heat emitted by the light source. One particularly useful application is linear, quartz incandescent heat lamps having a boron nitride coating disposed along one side of the filament chamber.

REFERENCES:
patent: 2135732 (1938-11-01), Randall et al.
patent: 2434757 (1948-01-01), Cartun
patent: 2434779 (1948-01-01), Willis
patent: 4281267 (1981-07-01), Johnson
patent: 4445068 (1984-04-01), van Heel et al.
patent: 4467238 (1984-08-01), Silverstein et al.
patent: 4499398 (1985-02-01), Munroe
patent: 4918356 (1990-04-01), Enyedy et al.

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