Accession Number : AD0884645
Title : Coherent Rear Projection Viewer Evaluation.
Descriptive Note : Technical rept. Jan - Nov 70,
Corporate Author : ROME AIR DEVELOPMENT CENTER GRIFFISS AFB NY
Personal Author(s) : Arlen, Richard D., Jr
Report Date : MAY 1971
Pagination or Media Count : 47
Abstract : The objective of this study was to evaluate the extent to which coherent array illumination, with respect to incoherent illumination, could improve the modulation of imaged high resolution, 15-bar, test targets. Targets tested ranged from a density difference of 0.3 to 1.0 in steps of 0.1. Points of focus for each target were 63.13, 100, 125.9, 158.5, and 199.6 LP/MM. The coherent array illumination yielded significant increases in modulation at 100 LP/MM and above. (Author)
Descriptors : (*PHOTOGRAPHIC PROJECTORS, ACCEPTABILITY), (*PHOTOGRAPHIC IMAGES, PHOTOINTERPRETATION), COHERENT RADIATION, GAS LASERS, EMISSIVITY, OPTICAL EQUIPMENT, OPTICAL EQUIPMENT COMPONENTS, SCREENS(DISPLAYS), RESOLUTION, EXPERIMENTAL DATA.
Subject Categories : Photography
Distribution Statement : APPROVED FOR PUBLIC RELEASE