Accession Number : AD0646361

Title :   MATERIALS STUDY FOR VISUAL TRANSFORMATION DEVICES.

Descriptive Note : Final rept., 1 Sep 64-30 Jun 66,

Corporate Author : MOLECULON RESEARCH CORP CAMBRIDGE MASS

Personal Author(s) : Nichols,L. D.

Report Date : 31 JUL 1966

Pagination or Media Count : 79

Abstract : A study of techniques for implementation of pattern recognition by uniform isotropic boundary propagation (the Blum process) was conducted. The desired component was a flat screen capable of performing this process on arbitrary high-contrast input images, providing both the basic propagation process and also satisfying the condition that confluent boundaries annihilate without crossing. Techniques studied include electroluminescent/photoconductive laminates, glow discharge phenomena, diffusion processes, thin film reactions, image storage tube systems, and thin film magnetic phenomena. Research was conducted on a theoretical level, including both analysis of basic propagation mechanisms and consideration of engineering parameters. The first three of the above systems appear potentially feasible, the EL/PC screen offering the most promise within the current state of the art. A prototype screen of this type was procured from Westinghouse and its behavior is described. Satisfactory propagation was not achieved, for reasons given. (Author)

Descriptors :   (*PATTERN RECOGNITION, DISPLAY SYSTEMS), SCREENS(DISPLAYS), MATERIALS, TRANSFORMATIONS, PROPAGATION, ELECTROLUMINESCENCE, PHOTOCONDUCTIVITY, OPTICAL PROPERTIES, FEEDBACK

Subject Categories : Bionics

Distribution Statement : APPROVED FOR PUBLIC RELEASE