N. Collings et W. Xue, LIQUID-CRYSTAL LIGHT VALVES AS THRESHOLDING ELEMENTS IN NEURAL NETWORKS - BASIC DEVICE REQUIREMENTS, Applied optics, 33(14), 1994, pp. 2829-2833
An important device for optoelectronic neural networks is a two-dimens
ional nonlinear thresholding element that is optically written and opt
ically read. The liquid-crystal light valve is the only commercially a
vailable device that is suitable for this application. Three different
types of valve are analyzed with respect to their suitability for two
different types of neural network.