Vignetting assembly

Details Vignetting assembly Vignetting assembly

1976-04-27

1978-03-21

Griffin, Donald A.

Photocopying

Projection printing and copying cameras

Detailed holder for photosensitive paper

G03B 2758

Patent

active

040800695

ABSTRACT:
A vignetting device has plural sets of matching vignetting plates which are accurately aligned and successively shifted to a central opening to block out different parts of the photograph area so as to permit fast and accurate preparation of special effect and composite prints.

REFERENCES:
patent: 1933953 (1933-11-01), Ames
patent: 2088710 (1937-08-01), Lewis
patent: 2473174 (1949-06-01), Pifer
patent: 2498278 (1950-02-01), Kaplowitz
patent: 2601051 (1952-06-01), Nielsen
patent: 2654289 (1953-10-01), Flynn
patent: 3073214 (1963-01-01), Haviland
patent: 3677638 (1972-07-01), Daugherty

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