Lighting apparatus with illuminance equalizing lens

Details Lighting apparatus with illuminance equalizing lens Lighting apparatus with illuminance equalizing lens

1984-04-18

1986-09-02

Cox, Ronald B.

Illumination

Light modifier

Refractor

362336, 362311, F21V 500, F21V 504

Patent

active

046099786

ABSTRACT:
In a lighting apparatus which illuminates light ray from an illumination light source through a light distribution lens onto an illuminated surface, an inner surface of the light distribution lens is formed as continuous surface to receive incident ray in the perpendicular direction, and an outer surface of the lens for refracting outgoing ray is formed based on the equations which are made in consideration of the illuminance on the illuminated surface, thereby uniform illuminance is obtained on the illuminated surface.

REFERENCES:
patent: 1983818 (1934-12-01), Seiss
patent: 2621283 (1952-12-01), Johnson
patent: 3132559 (1964-05-01), Kalustyan et al.
patent: 3235863 (1966-02-01), Lockhart

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