Spatial light modulating element and neural network circuit

Details Spatial light modulating element and neural network circuit Spatial light modulating element and neural network circuit

1989-11-22

1991-10-15

Hille, Rolf

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359104, G02F 113

Patent

active

050568973

ABSTRACT:
A spatial light modulator and a neural network circuit are disclosed. The modulator is used in pattern recognition and has an arrangement in which a photoconductive layer held between conductive electrodes is connected in series to a liquid crystal cell including a liquid crystal layer held between two opposite electrodes. Setting the rate between the area of the photoconductive layer and the area of at least one of the opposite electrodes between which the liquid crystal layer is disposed, provides a highly efficient reflective and transmissive spatial light modulator of a simple structure. Both reflective and transmissive spatial light modulating elements are applied to a neurocomputer or the like.

REFERENCES:
patent: 4198647 (1980-04-01), Grinberg et al.
patent: 4277145 (1981-07-01), Hareng et al.
patent: 4679910 (1987-07-01), Efron et al.
patent: 4941735 (1990-07-01), Moddel et al.
patent: 4943143 (1990-07-01), Yamashita

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