Photographic color enlarger

Details Photographic color enlarger Photographic color enlarger

1978-01-23

1979-09-25

Griffin, Donald A.

Photocopying

Projection printing and copying cameras

Illumination systems or details

G03B 2776

Patent

active

041689046

ABSTRACT:
One or more color-compensating filter-adjusting dials in the head portion of a color enlarger have on their peripheral surfaces indicia denoting values which are a function of the extent a corresponding color-compensating filter intercepts an optical path, and have in their end surfaces cams for directly or indirectly operating respective color-compensating filters. The dials are disposed in the head portion above a reflector in a mixing chamber in the head portion in a manner to be freely externally accessible and manually operable and with the indicia on the dials being visible externally of the head portion.

REFERENCES:
patent: 3002425 (1961-10-01), Biedermann et al.
patent: 3083614 (1963-04-01), Veit
patent: 3754824 (1973-08-01), Weisglass et al.
patent: 3800070 (1974-03-01), Barbieri
patent: 3880519 (1975-04-01), Barbieri

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