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Proceedings Paper

A Compact, Rugged Super-8MM VKR System
Author(s): Douglas L. Clark
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Paper Abstract

Historically, Video Kinescope Film Recorders (VKR's) have demonstrated performance that has been notoriously poor. VKR's were especially unsatisfactory when compared to video tape for recording 525 line rate systems for which the video tape was not bandwidth-limited. Recent advances in VKR technology have made it competitive with video tape systems, especially for recording high line rate systems which are now widely deployed and for which the video tape is severely bandwidth-limited. The Super 8mm VKR described here incorporates sophisticated and reliable circuitry to perform the function of expanding or compressing the video dynamic range to fill the density range of the film. Thus, a "flat" scene of low contrast will be expanded to achieve the same density range as a high contrast scene. This circuitry includes automatic gain control, automatic contrast control and gamma correction. Together with the extremely high resolution of the system, this circuitry make possible recordings of heretofore unrealizable quality.

Paper Details

Date Published: 1 October 1973
PDF: 16 pages
Proc. SPIE 0036, Military Airborne Video Recording: Requirements, Utilization, and Technology, (1 October 1973); doi: 10.1117/12.953707
Show Author Affiliations
Douglas L. Clark, Conrac 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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