Electrode structures and electrooptic light gate systems

• Main Author: JACOBS; JOHN H
• Format: Patent
• Language: English
• Published: 14.02.1989
• Edition: 4
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; FREQUENCY-CHANGING; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; TARIFF METERING APPARATUS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TESTING

An article of manufacture, such as an electrically actuable light gate structure, includes a substrate which may comprise an electrooptically active solid-state light gate material. Spaced parallel electrodes are subdivided on that substrate into first and second electrode arrays alternating along an elongate region of the substrate. Individual terminals for the electrodes in each first electrode array are distributed along a line on one side of the elongate region, and individual terminals for the electrodes in each second electrode array are distributed along a line on the opposite side of the elongate region of the substrate. Any individual terminal of any one of the electrodes is spaced from the individual terminal of any other electrode by a center-to-center distance greater than the center-to-center spacing between that one electrode and the latter other electrode.