PHOTODETECTOR

PHOTODETECTOR

A photodetector (10) includes a stem (40) having electrical conductivity, a pyroelectric element (20), a conductor pin (511), and a conductor pin (512). The pyroelectric element (20) is arranged on the front surface side of the stem (40) and has a structure including a first light receiving portion...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: MATSUI, Masatsugu, EIYAMA, Daichi, ICHIMARU, Masayuki
Format: Patent
Sprache:eng ; fre ; ger
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:A photodetector (10) includes a stem (40) having electrical conductivity, a pyroelectric element (20), a conductor pin (511), and a conductor pin (512). The pyroelectric element (20) is arranged on the front surface side of the stem (40) and has a structure including a first light receiving portion (201) and a second light receiving portion (202) that are connected in series and that generate voltages of opposite polarities upon receiving light. Each of the conductor pin (511) and the conductor pin (512) has a shape projecting from a front surface of the stem (40) and has thermal conductivity. A shortest distance for heat conduction between the conductor pin (511) and the first light receiving portion (201) and a shortest distance for heat conduction between the conductor pin (512) and the second light receiving portion (202) are the same.