METHOD OF AND DEVICE FOR ELECTRONICALLY COMPENSATING FOR MECHANICAL STRESSES IN AN OPTIC RELAY

• Main Authors: LEPAPE; AUGUSTE RAYMOND, MARIE; GERARD J. M, DONJON; JACQUES, MONOD; BERNARD
• Format: Patent
• Language: English
• Published: 15.04.1975
• Subjects: BASIC ELECTRIC ELEMENTS; DEAF-AID SETS; 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; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FREQUENCY-CHANGING; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; PUBLIC ADDRESS SYSTEMS; SEMICONDUCTOR DEVICES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TESTING

A method and a device for electronically compensating for stresses in an optic relay. In order to compensate for the mechanical stresses which occur especially during the cooling of the target in the relay, a sawtooth correction signal of line frequency is superimposed upon the video signal, the slope of the signal varying with the frame frequency.