Multiple colored searchlight signal unit

Details Multiple colored searchlight signal unit Multiple colored searchlight signal unit

1982-03-04

1984-06-12

Lechert, Jr., Stephen J.

Illumination

Plural light sources

Particular wavelength

362293, 362297, 362299, 362300, 362301, 362308, 362375, F21V 900

Patent

active

044545703

ABSTRACT:
A searchlight signaling device including a housing in which is mounted an optical system for producing colored signal lights. The optical system includes an objective lens for projecting the colored signal lights through an aperture formed in the housing. A plurality of white light sources and elliptical reflectors for conveying light rays through associated colored filters for producing different color light rays. A plurality of dichroic mirrors angularly disposed in relation to the focal axis of the objective lens for intercepting the color light rays. The dichroic mirrors transmit certain color light rays and reflect other color light rays so that a given colored signal light is emitted through the aperture.

REFERENCES:
patent: 4120026 (1978-10-01), Tsuchihashi et al.
patent: 4291365 (1981-09-01), Tandon et al.
patent: 4353110 (1982-10-01), Ellis
patent: 4367514 (1983-01-01), Large et al.

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