Method and apparatus for recording images using diffused light

Details Method and apparatus for recording images using diffused light Method and apparatus for recording images using diffused light

1990-03-19

1992-08-11

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Illumination systems or details

355 70, G03B 2772

Patent

active

051383705

ABSTRACT:
An image recording apparatus for recording the image information of a document on the surface of a photosensitive recording medium by irradiating the surface of the document and exposing the surface of the photosensitive recording medium to light reflected from the document is disclosed. A white, translucent film for diffusing light is applied to the upper surface of a contact glass, on which the document is placed, to irradiate the surface of the photosensitive recording medium by both diffused light reflected from the surface of the document and carrying image information, and white light reflected from the surface of the white, translucent film and not carrying any image information. The image recording apparatus records the image information of an image having satisfactory gradation and high definition and not having any pseudocontour.

REFERENCES:
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patent: 3669538 (1972-06-01), Fowler
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patent: 4250538 (1981-02-01), Durbin et al.
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patent: 4333130 (1982-06-01), Mochizuki et al.
patent: 4399209 (1983-08-01), Sanders et al.
patent: 4440846 (1984-04-01), Sanders et al.
patent: 4912505 (1990-03-01), Larson

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