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Browse Prior Art Database

Microfilm Unit for Document Handling Machine

IP.com Disclosure Number: IPCOM000095875D
Original Publication Date: 1964-Aug-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 49K

Publishing Venue

IBM

Related People

Dorrell, CE: AUTHOR [+3]

Abstract

A camera 1 is mounted in a document transport 2 and records the passing documents 3 on microfilm 4. In this manner, the documents can be processed in a data processing machine and recorded on the photographic film in one pass. Additionally, the speed of the micro filming corresponds to the speed of the documents passing through the machine, thus achieving a considerable increase in filming speed over contemporary microfilm devices.

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Microfilm Unit for Document Handling Machine

A camera 1 is mounted in a document transport 2 and records the passing documents 3 on microfilm 4. In this manner, the documents can be processed in a data processing machine and recorded on the photographic film in one pass. Additionally, the speed of the micro filming corresponds to the speed of the documents passing through the machine, thus achieving a considerable increase in filming speed over contemporary microfilm devices.

The system depends upon a camera that operates continuously in synchronism with the document transport. By suitably choosing the reduction ratio of the lens 5 and matching this to the reduction ratio in the speed of the film drive 6, the film 4 moves in synchronism with the moving documents 3.

This synchronous operation obviates the requirement for a shutter. The over- all camera then includes the focusing optics, the film drive and take-up wheels 6, and a slit 7 mounted in or just ahead of the focal plane of the camera 1. Slit 7 is used to block unwanted information coming onto the film.

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