INFRARED DETECTOR

The invention is configured in that a Dewar window is formed in the shape of a spheroid, a dielectric filter is formed on a surface of the Dower window by deposition, and an infrared detection element is mounted at a position within a focal circle of the spheroid. Since a cold filter required for co...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NONOYAMA, TOHRU, TAJIME, TORU, WAKABAYASHI, SATOSHI
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	COLORIMETRY MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING PHYSICS RADIATION PYROMETRY TESTING
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Beschreibung
Zusammenfassung:	The invention is configured in that a Dewar window is formed in the shape of a spheroid, a dielectric filter is formed on a surface of the Dower window by deposition, and an infrared detection element is mounted at a position within a focal circle of the spheroid. Since a cold filter required for cooling is omitted and reduction of noise equivalent thereto is achieved, heat load for a coolant is reduced and a time needed for cooling is decreased to a great extent.