Illumination optical system

Details Illumination optical system Illumination optical system

1986-10-14

1988-09-06

Jones, Larry

Illumination

Light source and modifier

Plural serial lens elements or components

350167, 353 38, F21V 704, G03B 2114

Patent

active

047697504

ABSTRACT:
An illumination optical system comprises a multi-beam generator which includes a plurality of each of two kinds of lens elements different in optical characteristics and which is interposed between a source for generating a collimated light beam and a light condenser. The multi-beam generator generates a large number of secondary light sources from the collimated light beam. The illumination optical system is capable of supplying illuminating light rays having an extremely uniform illumination distribution.

REFERENCES:
patent: 2272945 (1942-02-01), Hotchner
patent: 2326170 (1943-08-01), Rantsch
patent: 3296923 (1967-01-01), Miles
patent: 3302016 (1967-01-01), Larraburu
patent: 3923389 (1975-12-01), Rogers et al.
patent: 3941475 (1976-03-01), Sheets
patent: 4082438 (1978-04-01), Knop
patent: 4497015 (1985-01-01), Konno et al.
patent: 4619508 (1986-10-01), Shibuya et al.
patent: 4648695 (1987-03-01), Mizutani et al.

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