Optical: systems and elements – Single channel simultaneously to or from plural channels – By surface composed of lenticular elements
Patent
1991-11-05
1993-10-05
Arnold, Bruce Y.
Optical: systems and elements
Single channel simultaneously to or from plural channels
By surface composed of lenticular elements
359619, 359741, 355 53, 355 67, 362268, 362332, 362336, G02B 308, G02B 2712, F21V 504, G03B 2754
Patent
active
052510670
ABSTRACT:
In a fly-eye lens device according to the present invention, a fly-eye lens supported by supporting means is formed by two-dimensionally arranging plural types of fly-eye constituent lenses of unequal size. In the arrangement, the plural types of the fly-eye constituent lenses are disposed in order of ascending size from the center of the fly-eye lens toward the periphery thereof. A lighting system according to the present invention is equipped with the fly-eye constituent lenses. In the lighting system, light emanating from a light source passes through first optical means and impinges on the fly-eye constituent lenses. The light, after passing through a stop, is directed through second optical means to an object to be illuminated. The present invention can ensure the predetermined number of fly-eye constituent lenses which contribute to uniformity of illumination, and achieve uniform illumination at low cost.
REFERENCES:
patent: 3425056 (1969-01-01), Dawson
patent: 4619508 (1986-10-01), Shibuya et al.
patent: 4769750 (1988-09-01), Matsumoto et al.
patent: 5153773 (1992-10-01), Muraki et al.
Hough, William Simpson, Excerpt from Canadian Patent No. 179,064 "Lamp Mechanism" Sep. 4, 1917.
Arnold Bruce Y.
Mitsubishi Denki & Kabushiki Kaisha
Parsons David R.
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