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Proceedings Paper

Phased Roller Movement
Author(s): Walter Renold
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Paper Abstract

This concept offers an entirely new approach to High Speed Photography as described in U. S. Patent No. 3,613,978. Phased eccentric rollers move the film intermittently, and continuously control captive loops unyieldingly; no spring loaded rollers with limited frequency response are used. Registration pins lock the film during exposure. Thus pull down claws, free loops, and associated instability problems at high speed operation are eliminated. Smaller roller eccentricity -- only 1/16 of pulldown dimension -- permits easy balancing, low eccentric bearing loads and mechanism strain. Unusual geometric relations permit easy adjustment for film pitch variations.

Paper Details

Date Published: 18 January 1977
PDF: 5 pages
Proc. SPIE 0094, High Speed Optical Techniques: Developments and Applications, (18 January 1977); doi: 10.1117/12.955138
Show Author Affiliations
Walter Renold, Image Sciences, Inc. (United States)

Published in SPIE Proceedings Vol. 0094:
High Speed Optical Techniques: Developments and Applications
Michel A. Duguay; Richard K. Petersen, Editor(s)

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