Spotlight arrangement

Details Spotlight arrangement Spotlight arrangement

1989-03-06

1989-11-07

Lazarus, Ira S.

Illumination

Light source and modifier

With ventilating, cooling or heat insulating means

362304, 362305, 362331, F21V 1304

Patent

active

048796387

ABSTRACT:
A spotlight comprises a light source (14) mounted within an enclosure (11) fitted with a light-transmissive cover (28) which is formed with a central opening (29) above the light source. A clearance space between the light source and the cover allows light from light source (14) to spill over into the enclosure and thereby illuminate the cover from behind. Another enclosure (12) containing control gear (17) for the light source is thermally insulated from enclosure (11) by an air gap (21).

REFERENCES:
patent: 1525369 (1925-02-01), Campbell
patent: 1959819 (1934-05-01), Doane
patent: 2057263 (1936-10-01), Perlmutter
patent: 2185694 (1940-01-01), Noe
patent: 2300523 (1942-11-01), Reichart
patent: 3141086 (1964-07-01), Prager
patent: 4288844 (1981-09-01), Fischer et al.
patent: 4302801 (1981-11-01), Duddy
patent: 4422134 (1983-12-01), Brass
patent: 4497016 (1985-01-01), Sachse
patent: 4617619 (1986-10-01), Gehly

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