Quasimonochromatic light source

Details Quasimonochromatic light source Quasimonochromatic light source

1978-04-19

1980-12-16

Walsh, Donald P.

Illumination

Light source and modifier

Including selected wavelength modifier

362294, 362345, 362373, F21V 900, F21V 2900

Patent

active

042401330

ABSTRACT:
For enabling a quasimonochromatic high intensity light beam to be produced by a source having a lamp equipped with a cold light mirror, a heat protection filter in the light beam path and a system for cooling the heat protection filter, the source is further provided with an interference filter and projection optics located in the beam path downstream of the heat protection filter, and the interference filter is disposed in the optics.

REFERENCES:
patent: 2960415 (1960-11-01), Polan
patent: 3151208 (1964-09-01), Alpert
patent: 3410626 (1968-11-01), Magrath
patent: 3593019 (1971-07-01), Martinez
patent: 3703635 (1972-11-01), Burkarth
patent: 3704928 (1972-12-01), Coombs
patent: 3930149 (1975-12-01), French

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