Microfilm duplicating apparatus

Details Microfilm duplicating apparatus Microfilm duplicating apparatus

1987-06-16

1988-11-29

Hix, L. T.

Photocopying

Projection printing and copying cameras

Identifying, composing, or selecting

355 45, 355 66, 355 54, G03B 2752

Patent

active

047885769

ABSTRACT:
A microfilm duplicating apparatus for duplicating images, recorded on a master film onto a photographic duplicate film, comprising a light source for illuminating any one of the images on the master film from rear, a single reflective mirror for reflecting a luminous flux, which has been emitted from the light source and passed through the master film while carrying the image to be duplicated, so as to travel towards the duplicate film, and an image forming lens assembly consisting of two facing lenses of equal focal length disposed on the path of travel of the luminous flux.

REFERENCES:
patent: 4181427 (1980-01-01), Rotter
patent: 4324484 (1982-04-01), Johnson

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