Product category:
Optoelectronic Sensors, Switches and Receivers
News Release from: AP Technologies | Subject: SD138-11-31-211
Edited by the Electronicstalk Editorial
Team on 23 July 2002
Double-diode detector takes colour
temperature
The SD138-11-31-211 silicon PIN photodiode sandwich detector from Advanced Photonix features two silicon PIN photodiodes vertically integrated in a hermetic TO-5 package.
The SD138-11-31-211 silicon PIN photodiode sandwich detector from Advanced Photonix features two silicon PIN photodiodes vertically integrated in a hermetic TO-5 package The top photodiode absorbs a portion of the incident light while the remaining light passes through and is detected by the bottom detector
The photodiodes offer a large active area combined with low noise, high shunt resistance and high saturation levels.
System designers can use the ratio of the currents from the two photodiodes to remotely determine and monitor the colour temperature of an object.
By using unique processing of the photodiodes Advanced Photonix is able to offer a device with excellent linearity ratio in the photocurrents of the two detectors - a prerequisite for accurate colour temperature measurement, along with tightly controlled device-to-device and batch-to-batch uniformity.
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