Enlarger for use in photography

Details Enlarger for use in photography Enlarger for use in photography

1983-09-14

1986-03-18

Hix, L. T.

Photocopying

Projection printing and copying cameras

Multicolor picture

355 68, 355 69, 356404, G03B 2780

Patent

active

045764700

ABSTRACT:
An enlarger for use in photography capable of printing a color copy from a color original film includes a light source for generating a plurality of primary colors and a microcomputer for controlling the light source. The microcomputer has various functions which are: for providing a plurality of exposure data corresponding to a plurality of primary colors; for designating at least one of the primary colors; for altering the exposure data corresponding to the designated primary color; for displaying an information relating to the exposure data to be altered; for indicating the direction of change in tone of the color copy caused by altering the exposure data; for selecting the type of the original film; and for controlling the relation between the direction of change in tone of the color copy as indicated and the direction of change in the exposure data as displayed in response to the selected type of original film.

REFERENCES:
patent: 3340764 (1967-09-01), Bergson
patent: 3397612 (1968-08-01), Ludloff
patent: 4175853 (1979-11-01), Harvey
patent: 4235551 (1980-11-01), Harvey

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