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Science 8 December 1995:
Vol. 270. no. 5242, pp. 1642 - 1644
DOI: 10.1126/science.270.5242.1642
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Reports

Image Enhancement with Polymer Grid Triode Arrays

Alan J. Heeger,  David J. Heeger (1),  John Langan,  Yang Yang

An array of polymer grid triodes connected by a common grid functions as a ``plastic retina,'' providing local contrast gain control for image enhancement. This simple device, made from layers of conducting polymers, functions as an active resistive network that performs center-surround filtering. The polymer grid triode array with common grid is a continuous analog of the discrete approach of Mead, with a variety of fabrication advantages and significant savings in area within the unit cell of each pixel.


UNIAX Corporation, 6780 Cortona Road, Santa Barbara, CA 93117, USA.
(1) Permanent address: Department of Psychology, Stanford University, Stanford, CA 94305, USA.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Photoexcited breathers in conjugated polyenes: An excited-state molecular dynamics study.
S. Tretiak, A. Saxena, R. L. Martin, and A. R. Bishop (2003)
PNAS 100, 2185-2190
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