Lighting system with halogen bulb

Details Lighting system with halogen bulb Lighting system with halogen bulb

1989-01-26

1990-06-26

Lazarus, Ira S.

Illumination

Modifier mountable on light source envelope

362293, 362294, 362804, F21M 100

Patent

active

049377140

ABSTRACT:
A lighting system, including a light source having a light bulb and a reflector, has an interference filter applied to a portion of the outer surface of the light bulb. The interference filter has a high transparency for visible light and a high reflectivity for infrared radiation. The area of the light bulb that is permeable to infrared radiation is adjacent to an area of the reflector which is made to be infrared-radiation transmitting.

REFERENCES:
patent: 1822076 (1931-09-01), Bauersfeld et al.
patent: 2852980 (1958-09-01), Schroder
patent: 3174067 (1965-03-01), Bahrs
patent: 3255342 (1966-06-01), Seitz et al.
patent: 3463914 (1969-08-01), Lutter
patent: 4161014 (1979-07-01), Dey et al.
patent: 4254455 (1981-03-01), Neal, Jr.
patent: 4380794 (1983-04-01), Lawson
patent: 4663557 (1987-05-01), Martin, Jr. et al.
patent: 4766526 (1988-08-01), Morimoto et al.

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