Infrared modulator

The invention provides an IR modulator for synchronized interruption of an IR beam path in a thermal imaging device. A layer made of thermorefractive material is arranged in the beam path, and means are provided for changing the temperature of the thermorefractive layer.

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Bibliographische Detailangaben
Hauptverfasser:	DOWNAR, HARTMUT, SCHERBER, WERNER, BUECHTEMANN, WOLF
Format:	Patent
Sprache:	eng
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 ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	The invention provides an IR modulator for synchronized interruption of an IR beam path in a thermal imaging device. A layer made of thermorefractive material is arranged in the beam path, and means are provided for changing the temperature of the thermorefractive layer.