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1 October 1973 Optical Coatings Position Laser Scans
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Proceedings Volume 0036, Military Airborne Video Recording: Requirements, Utilization, and Technology; (1973) https://doi.org/10.1117/12.953719
Event: Military Airborne Video Recording: Requirements, Utilization and Techniques, 1973, Dayton, United States
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.
© (1973) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Edward D. Hartfield "Optical Coatings Position Laser Scans", Proc. SPIE 0036, Military Airborne Video Recording: Requirements, Utilization, and Technology, (1 October 1973); https://doi.org/10.1117/12.953719
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