By Topic

An Electroluminescent Light-Amplifying Picture Panel

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Kazan, B. ; RCA Laboratories, Princeton, N.J. ; Nicoll, F.H.

This paper describes an experimental amplifier for light which uses a photoconductive layer electrically in series with an electroluminescent phosphor layer. With the series combination excited by an alternating voltage of audio frequency; e.g., 400 cps, a low light level impinging on the photoconductor decreases its resistance sufficiently to cause a much larger light output from the phosphor. Large-area light-amplifying panels, 12 inches square, using a newly developed photoconductive CdS powder have been built. These panels are capable of producing intensified half-tone images with high resolution. The response time of these panels, determined basically by the photoconductive material, varies from 0.1 second to several seconds. New photoconductive materials offer promise of greatly increased speed. Since the photoconductors can be made sensitive to X-rays and infrared, the principles of the device may be useful for image conversion and intensification with these radiation sources.

Published in:

Proceedings of the IRE  (Volume:43 ,  Issue: 12 )