Method and apparatus for photographic printing

Details Method and apparatus for photographic printing Method and apparatus for photographic printing

1989-07-11

1991-06-11

Hayes, Monroe H.

Photocopying

Including fiber optics

355 68, 355 80, 355 81, G03B 2700

Patent

active

050236520

ABSTRACT:
A photographic printing enlarger apparatus and method in which the enlarger head receives lights passing through a fiber optic light bundle. This light passes through a color filter system, negative, or transparency, supported by a negative carrier, and the lens. The beam of light projects the image on the surface of an exposure correction easel. A mechanical arm scans the beam of light passing through the negative in small sections, and senses the density of the negative, registering the information into a computer memory. The mechanical arm is driven to expose the light-sensitive photographic material in small sections in cooperation with a shutter system and in accordance with the information stored in computer memory. The mechanical arm is comprised of a row of several image sensors which read the wavelength of light passing through.

REFERENCES:
patent: 3163080 (1964-12-01), Miller
patent: 3479119 (1969-11-01), Miller et al.
patent: 4367946 (1983-01-01), Varner
patent: 4675702 (1987-06-01), Gerber
patent: 4774549 (1988-09-01), Morse
patent: 4830468 (1989-05-01), Stephany et al.

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