Apparatus for uniform illumination employing light diffuser

Details Apparatus for uniform illumination employing light diffuser Apparatus for uniform illumination employing light diffuser

1982-11-02

1984-07-17

Lechert, Jr., Stephen J.

Illumination

Revolving

362 31, 362268, 362293, 362307, 362308, 362311, 362326, 362330, 362331, 362335, 362336, F21V 704

Patent

active

044609400

ABSTRACT:
A light diffusing device and an illumination apparatus employing the light diffusing device, the light diffusing device including a light transmission element and a light diffusing layer carried on and different in refractive index from the light transmission element, whereby light comes out from the device through the light diffusing layer. A number of such light diffusing layers are arranged in the light diffusing device of the illumination apparatus. The diffusing layers are provided with thicknesses which are different from each other or, otherwise, arranged to a density which varies along the device, thereby illuminating a desired object uniformly as a whole.

REFERENCES:
patent: 3131496 (1964-05-01), Schropp
patent: 3222515 (1965-12-01), Orr

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