Microrecord having mirror-images

Details Microrecord having mirror-images Microrecord having mirror-images

1974-02-15

1976-12-07

Hix, L. T.

Photocopying

Miscellaneous

355 45, 355 54, G03B 2742

Patent

active

039959562

ABSTRACT:
A microfiche or other form of microfilm record having a main set of images thereon which may be selectively projected onto a viewing screen. In order to facilitate the making of reproductions of the recorded images without interposing a mirror between the sensitive film or the plate of the reproducer and the image projection system, the microfiche incorporates a companion set of images each being a reversed image of the corresponding image on the main set whereby when a reversed image is projected, it may be directly reproduced to produce a non-reversed, readable copy.

REFERENCES:
patent: 1391807 (1921-09-01), Swalm et al.
patent: 2326042 (1943-08-01), Lessman
patent: 2484448 (1949-10-01), Cook
patent: 3390607 (1968-07-01), Wills
patent: 3442586 (1969-05-01), Coil
patent: 3584950 (1971-06-01), Gundlach
patent: 3592542 (1971-07-01), Kaufer
patent: 3769884 (1973-11-01), Sigman

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