Luminaires

Details Luminaires Luminaires

1994-10-17

1996-12-31

Lazarus, Ira S.

Illumination

Light source and modifier

Including reflector

362327, 359726, F21V 712

Patent

active

055887430

ABSTRACT:
A luminaire, for example a luminaire for emergency lighting, comprises a light source and an optical element mounted behind the light source, the element being shaped as a fresnel type element so that substantially all the light impinging upon it from the light source is redirected at a specific angle, typically 60.degree.. The element increases the light output over a specific area.

REFERENCES:
patent: 3944809 (1976-03-01), Moore et al.
patent: 4081667 (1978-03-01), Lewin et al.
patent: 4185895 (1980-01-01), Stephens et al.
patent: 4789921 (1988-12-01), Aho
patent: 4994947 (1991-02-01), Fesko
patent: 5029060 (1991-07-01), Aho et al.
patent: 5446594 (1995-08-01), Nelson et al.

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