Accession Number : AD0652848
Title : THE POSSIBILITY OF THE INTENSIFICATION AND STORAGE OF IMAGES BY MEANS OF CRYSTALLINE SCREENS,
Corporate Author : ITT INDUSTRIAL LABS SAN FERNANDO CALIF
Personal Author(s) : Orthuber,R. K.
Report Date : JUL 1966
Pagination or Media Count : 53
Abstract : The report summarizes techniques then proposed or under study, suitable for storage and highly intensified projection display of scanned or unscanned electron images. The methods discussed are mainly: Control of light transmission by means of ZnS crystals which are charged by an intensity modulated scanning beam and change the polarization plane of a passing light beam in accordance with the local charge density (Ardenne), and Control of light transmission by discoloration of alkali halide crystals (dark trace tubes). The problems inherent in these two schemes are discussed which, in the first case, consist mainly in resolution limitations related to the limited breakdown field and, in the second case, in contrast limitations. With the advent of highly monochromatic intense light sources (lasers), much improved contrast rendition with dark trace tubes might be possible.
Descriptors : (*ELECTRON BEAMS, *IMAGES), LIGHT TRANSMISSION, SCANNING, INTENSITY, SINGLE CRYSTALS, ZINC SULFIDES, LUMINESCENCE, HALIDES, ALKALINE EARTH COMPOUNDS, MONOCHROMATIC LIGHT, LASERS, DENSITY, ABSORPTION, RESOLUTION, POLARIZATION, BRIGHTNESS, AMPLIFIERS, DISCOLORATION
Subject Categories : Optics
Distribution Statement : APPROVED FOR PUBLIC RELEASE