Method of producing color slides from black and white originals

Details Method of producing color slides from black and white originals Method of producing color slides from black and white originals

1975-03-17

1977-01-18

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Methods

352 87, 355 32, 355 40, G03B 2732

Patent

active

040036537

ABSTRACT:
In the method of producing color slides from black and white originals, a light box, a glass plate and a camera are used. Also utilized is a positive and negative of a black and white original. In the first step, a film frame in the camera is exposed to the positive which is between the camera and the light box. Any desired background texture between the positive and the light box and a color filter on the camera lens may be used. In succeeding steps, the negative is used, mounted between the camera and the light box, and various portions of the negative are blacked out and different colored filters used while continuing to expose the film frame in the camera to various portions of the negative.

REFERENCES:
patent: 2232144 (1941-02-01), Sersen
patent: 2927857 (1960-03-01), Pohl
patent: 3480362 (1969-11-01), DeJoux
patent: 3600087 (1971-08-01), Goodman et al.
patent: 3619051 (1971-11-01), Wright
patent: 3705762 (1972-12-01), Ladd et al.
patent: 3741649 (1973-06-01), Podesta et al.
patent: 3833293 (1974-09-01), Serio et al.

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