Luminaire having an improved thermal management arrangement

Details Luminaire having an improved thermal management arrangement Luminaire having an improved thermal management arrangement

1991-12-09

1993-02-02

Ostrager, Allen M.

Illumination

Light source and modifier

With ventilating, cooling or heat insulating means

362345, 362373, F21V 2900

Patent

active

051833280

ABSTRACT:
In an industrial luminaire having an acrylic reflector for directing light output in a desired pattern, and in which a high wattage light source is utilized, a cooling sleeve constructed of a light transmissive material is mounted in surrounding proximity to the light source. The cooling sleeve is cylindrically shaped with at least one opening through which heat generated by the light source can be channeled away from the acrylic reflector in a chimney like manner. The cooling effect of the sleeve is further supplemented by the ability to pass a flow of air within the reflector, around the cooling sleeve, and through a space formed between the reflector and the cooling sleeve. A venting arrangement can be formed in the housing or other support structure on which the reflector, light source and cooling sleeve are mounted.

REFERENCES:
patent: 1824894 (1931-09-01), Hopkin, Jr.
patent: 3310672 (1967-03-01), Bursell
patent: 3588488 (1971-06-01), Lauterbach
patent: 4985815 (1991-01-01), Endo

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