Electroluminescent lighting fixture

Details Electroluminescent lighting fixture Electroluminescent lighting fixture

1984-10-31

1986-04-08

Nelli, Raymond A.

Illumination

Vehicle steering mechanism or element moves pivoted lamp or...

Tie rod element controlled

362 27, 362 23, 362 30, F21V 914

Patent

active

045816832

ABSTRACT:
An electroluminescent light fixture is provided which is designed for use in military aircraft which is especially arranged for night viewing compatibility either by the naked eye or with the night vision goggles of an aircraft pilot. The fixture generally comprises a frame which prevents an observer from directly viewing the source of light, an electroluminescent strip adjacent the outer portion of the frame, and a lens of a modified torus shape which is adjacent the EL strip and which pipes the light of the EL strip towards the face of the instrument. The lens is configured with a light-emitting face which is optimally angled from the normal to the instrument dial surface such that maximal uniformity of illumination is provided. Two light-emitting faces angled at different angles may be provided to highlight dial pointers. The lens is also preferably pigmented so as to eliminate undesired reflections and glare. In one embodiment, the lighting fixture snaps on and sits around the bezel of the particular instrument which is to be illuminated. In another embodiment, the lighting fixture is incorporated inside the instrument.

REFERENCES:
patent: 2664848 (1954-01-01), Nauth
patent: 2712593 (1955-07-01), Merchant
patent: 2837628 (1958-06-01), Lamb et al.
patent: 2874268 (1959-02-01), Martin
patent: 3027669 (1962-04-01), Hardesty
patent: 3068833 (1962-12-01), Hoffman
patent: 3120349 (1964-02-01), Howland
patent: 3320412 (1967-05-01), Howland
patent: 3433940 (1969-03-01), Baez et al.
patent: 4328532 (1982-05-01), Smith
patent: 4418377 (1983-11-01), Tamura

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