Illuminating apparatus

Details Illuminating apparatus Illuminating apparatus

1983-10-03

1986-02-25

Hix, L. T.

Photocopying

Projection printing and copying cameras

Illumination systems or details

350319, 362331, 362328, 362268, 362335, G03B 2754

Patent

active

045726590

ABSTRACT:
The present invention provides an illuminating apparatus for illuminating a surface to be illuminated by the use of an arcuate light source image. A point source of light is intermediately imaged in the form of an arcuate by a concave mirror. The arcuate intermediate light source image is further imaged on the surface, to be illuminated, by a plurality of concave mirrors to form an arcuate image. Convex and concave blades, which define an arcuate slit-shaped opening, are disposed in positions spaced away from each other forwardly and rearwardly of the intermediate light source image, respectively. By the use of these blades, a sharper light source image can finally be formed in the form of an arc.

REFERENCES:
patent: 4215934 (1980-08-01), Karasawa
patent: 4294538 (1981-10-01), Ban
patent: 4362384 (1982-12-01), Engelbrecht et al.

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