Spatial light modulator

Details Spatial light modulator Spatial light modulator

1987-11-13

1989-07-18

LaRoche, Eugene R.

350381, 350385, G02F 1015, G02F 101

Patent

active

048488801

ABSTRACT:
An electro-optical device for providing spatial modulation of an incoming electromagnetic wave signal, and preferably a two-dimensional incoming signal applied orthogonally to an input plane of the device, which device includes an array of modulation regions for providing such modulation of portions of the incoming signal. An array of first reflective mirrors are positioned so as to direct the incoming electromagnetic wave signal portions through the interaction layer regions of the modulation regions in a direction substantially parallel thereto and an array of second reflective mirrors directs the modulated electromagnetic wave signal portions outwardly from the device to provide a two-dimensional spatially modulated output electromagnetic wave signal.

REFERENCES:
patent: 3551028 (1967-07-01), Plass
patent: 4518934 (1985-05-01), Venkatesan
patent: 4546244 (1985-10-01), Miller
patent: 4569573 (1986-02-01), Agostinelli
patent: 4696533 (1987-09-01), Kingston et al.
Windhorn et al., "Monolithic GaAs/AlGaAs diode laser/deflector devices for light emission normal to the surface", Appl. Phys. Lett, 48(24), Jun. 1986, pp. 1675-1677.

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