Electrostatically actuatable light modulating device

Details Electrostatically actuatable light modulating device Electrostatically actuatable light modulating device

1990-08-21

1991-11-05

Arnold, Bruce Y.

Optical: systems and elements

Light control by opaque element or medium movable in or...

Electro-mechanical

359227, G02B 2602

Patent

active

050626892

ABSTRACT:
The electrostatically actuatable light modulator utilizes an opaque substrate plate patterned with an array of aperture cells, the cells comprised of physically positionable dielectric shutters and electrostatic actuators. With incorporation of a light source and a viewing screen, a projection display system is effected. Inclusion of a color filter array aligned with the aperture cells accomplishes a color display. The system is realized in terms of a silicon based manufacturing technology allowing fabrication of a high resolution capability in a physically small device which with the utilization of included magnification optics allows both large and small projection displays.

REFERENCES:
patent: 3746911 (1973-07-01), Nathanson et al.
patent: 4441791 (1984-04-01), Hornbeck
patent: 4736202 (1988-04-01), Simpson et al.
patent: 4848879 (1989-07-01), Nishimura et al.

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