Piezoelectric light shutter

Details Piezoelectric light shutter Piezoelectric light shutter

1996-08-20

1998-07-14

Font, Frank G.

Optical: systems and elements

Optical modulator

Light wave directional modulation

359290, 359297, G02F 129

Patent

active

057813337

ABSTRACT:
A piezoelectric actuatable array of light shutters is disclosed wherein each pixel aperture in the array is selectively opened and closed by way of an opaque piezoelectric shutter. Upon application of a voltage, each piezoelectric shutter extends laterally so as to close the corresponding pixel aperture and prevent light from passing therethrough. The pizeoelectric shutters contract, opening the corresponding pixel aperture, upon removal of the above-threshold voltage.

REFERENCES:
patent: 3553364 (1971-01-01), Lee
patent: 3963326 (1976-06-01), Buchert
patent: 4564836 (1986-01-01), Vuilleumier et al.
patent: 5062689 (1991-11-01), Koehler
patent: 5078479 (1992-01-01), Vuilleumier
patent: 5121249 (1992-06-01), Fellows
patent: 5455709 (1995-10-01), Dula, III et al.

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