Microfilm viewer having enlarged copy production attachment

Details Microfilm viewer having enlarged copy production attachment Microfilm viewer having enlarged copy production attachment

1976-03-19

1978-01-17

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

With focusing or projection screen

355 57, 355 60, 355 66, G03B 1328

Patent

active

040689441

ABSTRACT:
A microfilm viewer has an attachment for producing enlarged copies of microfilm, the viewer being of a typical construction and modified as having a cabinet opening beneath the area containing a first mirror used for deflecting a beam of light issuing from a projecting lens onto a projection screen. An undercut area is provided in the cabinet below such opening within which area a separate auxiliary device for making copy enlargements of microfilm records is located. Such auxiliary device has a support frame for a second mirror, the frame and second mirror extending into the opening provided in the viewer cabinet. The second mirror is so disposed as to catch the light beam reflected from the first mirror and deflect it onto a substantially horizontal picture plane of the auxiliary device so as to illuminate a light-sensitive material located in such picture plane.

REFERENCES:
patent: 3055266 (1962-09-01), Frantz et al.
patent: 3240115 (1966-03-01), Robbins et al.
patent: 3308713 (1967-03-01), Miller
patent: 3323414 (1967-06-01), Ritchie et al.
patent: 3619052 (1971-11-01), Diachuk
patent: 3740136 (1973-06-01), Maloney et al.
patent: 3890045 (1975-06-01), Bernstein et al.
patent: 3907415 (1975-09-01), Sone et al.

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