Document illuminating apparatus

Details Document illuminating apparatus Document illuminating apparatus

1986-11-24

1988-01-26

Grimley, Arthur T.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 67, G03G 1504

Patent

active

047219793

ABSTRACT:
A document illuminating apparatus includes a reflecting plate which reflects the light from a rod-shaped illuminating lamp before it is incident on a document disposed on a document table. The reflecting area of the reflecting plate is varied in the longitudinal direction thereof in such a manner that the side of the reflecting plate on which the distance between the document and an optical path changing mirror is relatively great has a larger reflecting area than that of the side of the reflecting plate on which said distance is relatively short. Accordingly, the illuminance of the reflected light from the document which is incident on the optical path changing mirror is made uniform along the longitudinal axis of the illuminating lamp.

REFERENCES:
patent: 3539258 (1970-11-01), Miles
patent: 3669538 (1972-06-01), Fowler
patent: 3850523 (1974-11-01), Skavnak
patent: 4139297 (1979-02-01), Hayashi et al.

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