photodetector

(redirected from Photo detector)
Also found in: Dictionary, Medical.
Related to Photo detector: Photodiode

photodetector

(foh-toh-di-tek -ter) Any electronic device designed to respond to, i.e. detect, photons of light or other radiation. Examples include the photomultiplier and CCD.

photodetector

[¦fōd·ō·di′tek·tər]
(electronics)
A detector that responds to radiant energy; examples include photoconductive cells, photodiodes, photoresistors, photoswitches, phototransistors, phototubes, and photovoltaic cells. Also known as light-sensitive cell; light-sensitive detector; light sensor photodevice; photodevice; photoelectric detector; photosensor.

photodetector

A device that senses light. It uses the principle of photoconductivity, which is exhibited in certain materials that change their electrical conductivity when exposed to light. See photoelectric, photocell and photodiode.
References in periodicals archive ?
To solve this issue, angle diversity based optical photo detector is proposed to mitigate the LOS interference.
From the experiment done, we found that photocell work as the photo detector that can change the light illuminations into electricity and finally convert it into signal.
PASCAL also uses this internal photo detector to ensure that the power is off when necessary, such as during the start-up sequence or when the system is in standby mode.
Six selectable gain settings, three for each photo detector array -- 130MHz bandwidth -- 10ns output settling time -- 200V/us minimum slew rate -- Sleep mode -- 1ns group delay -- Differential outputs with 3.
This is done by bouncing the source light off smoke in the sensing chamber and have a photo detector respond to the difference from dark (clear) air and the light reflected of the smoke (Figure 5).
However, with technology advances in laser diodes and photo detectors, the dynamic range is expected to improve.
This approach allows the photo IC to measure light only within the visible range by measuring the difference between the full spectral response and IR response of the photo detector.
With this new agreement, PolarFab will fabricate all high end products in Sipex's power management and interface families, in addition to continuing to provide wafer fabrication for Sipex's photo detector DVD solutions.
Current CCD and CMOS color image sensors have one layer of monochromatic photo detectors, with one photo detector per pixel.
Optical power is proportional to the square of light intensity, which requires appropriate calibration of the photo detector output current.
A special reflective background is placed behind the target area to reflect the laser light back to the source where a photo detector senses any returned light.