Apparatus and process for photographically duplicating intellige

Details Apparatus and process for photographically duplicating intellige Apparatus and process for photographically duplicating intellige

1978-01-31

1979-04-03

Hix, L. T.

Photocopying

Miscellaneous

355132, 355113, 355 83, G03B 2704, G03B 2716, G03B 2778

Patent

active

041474295

ABSTRACT:
Process and apparatus for duplicating on microfiche the intelligence appearing on a photoplastic microfiche master by irradiating the duplicate through the master with high intensity moderately collimated light. Photoplastic film having a relatively thick thermoplastic layer is used as the master. The master and the duplicate are separated by a gap of predetermined size, which gap can be filled by air, plastic, glass or any other transparent medium. Multiple light sources isolated from one another, are used and provision is made for absorbing and dissipating some of the heat before the light reaches the master. Means are provided for assuring relatively uniform light intensity across the entire recording face and for assuring consistent irradiation of the duplicate irrespective of lamp age or line voltage variations.

REFERENCES:
patent: 1838312 (1931-12-01), Kanolt
patent: 3798782 (1974-03-01), Lindahl
patent: 3809473 (1974-05-01), Moraw et al.
patent: 3944419 (1976-03-01), Bigatel et al.

Affiliated with

Also associated with

Rating

Apparatus and process for photographically duplicating intellige does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and process for photographically duplicating intellige, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and process for photographically duplicating intellige will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1744558