Image projector

Details Image projector Image projector

1991-07-17

1992-08-18

Hayes, Monroe H.

Photocopying

Projection printing and copying cameras

With focusing or projection screen

355 68, 355214, G03B 1328

Patent

active

051403633

ABSTRACT:
An apparatus and method for detecting an image density of an original document is provided. The density of the image of an original document is determined during the changing of the zoom magnification of a zoom lens. A control signal for the image density is then utilized to control an imaging operation.

REFERENCES:
patent: 4153364 (1979-05-01), Suzuki et al.
patent: 4963923 (1990-10-01), Kusano et al.
patent: 5068687 (1991-11-01), Kamimura et al.

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