Binoculars with treated surfaces.

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Title: Binoculars with treated surfaces.
Author: Verplanck, WS; Bartlett, NR
Abstract: Two pairs of Bausch and Lomb 7-power, 50-millimeter binoculars were compared in a field try-out. One of these pairs of binoculars had been treated so that its transmission of light, as determined by physical measurements, was greater by 32% than that of the other. In all other respects these binoculars were identical. A difference in transmission of this order is minor with respect to the fluctuations in sensitivity of the human eye. (Author)
Description: Citation Status: Active; Citation Classification: Unclassified; Title Classification: Unclassified; Report Classification: Unclassified; Identifier Classification: Unclassified; Abstract Classification: Unclassified; Distribution Limitation(s): 01 - APPROVED FOR PUBLIC RELEASE; Information provided by the Department of Defense and the Defense Technical Information Center ( is considered public information and may be distributed or copied unless otherwise specified. Use of appropriate byline/photo/image credits is requested.
Date: 1942

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