Image projecting system

Details Image projecting system Image projecting system

1990-09-04

1991-04-23

Hayes, Monroe H.

Photocopying

Projection printing and copying cameras

Detailed holder for photosensitive paper

G03B 2758

Patent

active

050103628

ABSTRACT:
An image projecting system is disclosed which is provided with a carrier part disposed in an optical path between a light source and an image receiver such as, for example, a screen and a sensitive medium and adapted to be loaded with a microfilm. Inside the image projecting system, masking members for adjusting the range of the optical path are fitted. These masking members rotate around the optical axis of the optical path. Even when an image happens to be photographed aslant in the microfilm, only a stated area of the image is projected on the image receiver.

REFERENCES:
patent: 2369897 (1945-02-01), Hjort
patent: 3627411 (1971-12-01), Nagel
patent: 3674365 (1972-07-01), Kohler et al.
patent: 3980407 (1976-09-01), Hill
patent: 4208124 (1980-06-01), Fox
patent: 4234251 (1980-11-01), Nishida et al.

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