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Proceedings Paper

Optical Coatings Position Laser Scans
Author(s): Edward D. Hartfield
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Paper Abstract

This experimental study was undertaken to determine the feasibility of correcting apex angle differences in multifaceted rotating mirrors by depositing optical coatings to build up a linear wedge on the spinner facets. Line pitch variations on film caused by apex angle differences in multifaceted mechanical scanners have been a problem within the industry for some time. The correction of these apex angle differences has previously been attempted through electro-optic or acousto-optic laser beam deflectors, with varying degrees of success. For fixed errors, such as exist in a high precision mechanical scanner rotating about a stable spin axis, a passive correction technique is, in many cases, pref-erable, particularly if the technique does not require an increase in the system size, weight, power consumption, or complexity.

Paper Details

Date Published: 1 October 1973
PDF: 8 pages
Proc. SPIE 0036, Military Airborne Video Recording: Requirements, Utilization, and Technology, (1 October 1973); doi: 10.1117/12.953719
Show Author Affiliations
Edward D. Hartfield, Itek Corporation (United States)

Published in SPIE Proceedings Vol. 0036:
Military Airborne Video Recording: Requirements, Utilization, and Technology
Stanley J. Rostocki, Editor(s)

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