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