Illumination device for a copying machine

Details Illumination device for a copying machine Illumination device for a copying machine

1982-02-09

1984-11-20

Gonzales, John F.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 67, G03G 1500, G03B 2754

Patent

active

044836090

ABSTRACT:
The device for illuminating an original document in a copying machine in which the original document is properly illuminated both when it is in contact with a platen and when it floats above the platen. A main reflector is disposed around a light source to produce an arc of illumination directed toward the platen. A primary reflector disposed within the periphery of the arc reflects a first beam toward the platen while a floating-original reflector, also disposed within the periphery of the arc, reflects a second beam of light toward the platen in a direction so as to illuminate the original document within a predetermined range of distance from the platen.

REFERENCES:
patent: 3977784 (1976-08-01), Hara
patent: 3982116 (1976-09-01), Sakuma
patent: 4239383 (1980-12-01), Peterson
patent: 4295186 (1981-10-01), Sugiura et al.
IBM Technical Disclosure Bulletin, "Illumination to Eliminate Shadows", Bersot et al., vol. 15, No. 2, Jul. 1972, p. 521.

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