Display matrix incorporating light-conducting fibers and light-o

Details Display matrix incorporating light-conducting fibers and light-o Display matrix incorporating light-conducting fibers and light-o

1986-10-24

1988-12-27

Curtis, Marshall M.

Communications: electrical

Visual indication

Movable

340763, 340764, 34081508, G08B 500

Patent

active

047943912

ABSTRACT:
A display matrix incorporates optical fibers to transmit light from light sources to the front of the display. An occulting device is associated with an assembly of fibers to modify the character of the light emitted to the front of the matrix, and a device controlling the actuation of the occulting of device makes it possible selectively to control the occulting of determined groups of fibers to transform the display as desired. The occulting device comprises a disc incorporating different light-modifying sectors capable of being interposed in the path of the light, as a function of a rotation controlled by the electromechanical actuation device which includes a rotor coupled to the disc and rotatable within a stator made of a material having good magnetic remanence and high permeability to provide the device with a very short response time and low input energy requirement.

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patent: 4279089 (1981-07-01), Murakauri
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