Illumination light source device

Details Illumination light source device Illumination light source device

1991-09-03

1993-05-04

Lazarus, Ira S.

Illumination

Housing

With cooling means

362294, 362345, 392426, F21V 2900

Patent

active

052075052

ABSTRACT:
A light source device houses a lamp such as a mercury discharge tube for generating a high temperature heat, and a reflective optical member such as an elliptic, mirror surrounding the lamp, in a lamp case. When the lamp is forcibly cooled by air, a device for substantially uniformly heating or heat-insulating a reflection surface of the reflective optical member is provided to prevent overcooling of the reflective optical member.

REFERENCES:
patent: 2232156 (1941-02-01), Abeles
patent: 2372832 (1945-04-01), Jepson
patent: 2679003 (1954-05-01), Dyke et al.
patent: 3141086 (1964-07-01), Prager
patent: 3720806 (1973-03-01), Fotland
patent: 4460944 (1984-07-01), Gordbegli et al.
patent: 4630182 (1986-12-01), Moroi et al.
patent: 4681024 (1987-07-01), Ivey

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