Color enlarger

Details Color enlarger Color enlarger

1983-09-14

1986-03-11

Hix, L. T.

Photocopying

Projection printing and copying cameras

Multicolor picture

355 68, 355 69, G03B 2773, G03B 2772

Patent

active

045752257

ABSTRACT:
A color enlarger for use in photography capable of printing a color copy from a color original film includes a plurality of source lights for separately generating lights corresponding to a plurality of primary colors; a monitor for separately picking-up the plurality of source lights to monitor the light generated from the light source, and light measuring circuit for separately measuring the plurality of source lights transmitted through the color original film. The color enlarger further includes a microcomputer which has various functions which are: for providing a color data representative of a color to be reproduced on the color copy; for separately calculating the whole light quantities for the plurality of source lights to be generated upon printing the color copy, in response to the monitor, the light measuring circuit, and the provided color data; and for controlling light sources upon printing the color copy in response to the calculating value.

REFERENCES:
patent: 3397612 (1968-08-01), Ludloff et al.
patent: 3640620 (1972-02-01), Shatz et al.
patent: 4246514 (1981-01-01), Metzger
patent: 4255064 (1981-03-01), Corona
patent: 4371259 (1983-02-01), Howitt

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