Optical system for alternatively projecting adjacent images of a

Details Optical system for alternatively projecting adjacent images of a Optical system for alternatively projecting adjacent images of a

1977-03-30

1978-08-29

Haroian, Harry N.

Optics: image projectors

Miscellaneous

355 46, G03B 2100

Patent

active

041100239

ABSTRACT:
An optical system is disclosed for substantially doubling the capacity of a photocopying apparatus or the like. It provides alternative modes of operation; adjacent imaging of adjacent objects or double imaging of a single object. In the adjacent imaging mode, a single projection lens projects adjacent images of two adjacent objects in a straightforward way. In the alternative double imaging mode, a pair of projection lenses projects twin images of a single object along "parallel" optical paths. In the double imaging mode, a field stop is included to block light from the vacated half of the object station. The field stop is located near the first lens on its object side.

REFERENCES:
patent: 2496272 (1950-02-01), Current
patent: 2682193 (1954-06-01), Schubert et al.
patent: 2740324 (1956-04-01), Cahill
patent: 3169441 (1965-02-01), Johnson

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