DYNAMIC METHOD OF CONTROL OVER PROFILE OF WAVE FRONT OF LIGHT BEAM AND DEVICE FOR ITS REALIZATION ( VARIANTS )

FIELD: optics. SUBSTANCE: method realizes difference between on and off times of electrooptical effect in layer of nematic liquid crystal. Structurally dynamic corrector can be built in two variants. According to first variant it has high-resistance electrode which resistance is so selected that tim...

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Bibliographische Detailangaben
Hauptverfasser:	VDOVIN G.V, NAUMOV A.F, GURAL'NIK I.R, LOKTEV M.JU, SHEENKOV S.V
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	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 FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	FIELD: optics. SUBSTANCE: method realizes difference between on and off times of electrooptical effect in layer of nematic liquid crystal. Structurally dynamic corrector can be built in two variants. According to first variant it has high-resistance electrode which resistance is so selected that time constant RC is greater than ton, and controlling voltage is such that ton>>toff. Difference lies in method of control when controlling voltage is fed to pair of contacts of corrector in the course of switching- over time t so that ton