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A diode that exhibits sensitivity to light, either by varying its electrical resistance like a photoresistor or by generating a electric potential in the manner of a photoelectric cell.


(Electronics) a semiconductor diode, the conductivity of which is controlled by incident illumination


(ˈfoʊ toʊˌdaɪ oʊd)

a photosensitive semiconductor diode.
References in periodicals archive ?
The visible light is next converted to an electric charge by various methods such as amorphous silicon photodiode circuitry, a charge-coupled device, or a complimentary metal-oxide semiconductor.
Duda, Silicon photodiode device with 100% external quantum efficiency.
The responsivity of a silicon photodiode is its output electrical signal per unit of input optical power.
The device is built from replaceable input apertures and tightly packed different-size silicon photodiodes.
Detectors: Dual Silicon Photodiodes ( Sample & Reference Detector)
OSI Optoelectronics (Hawthorne, CA) has introduced a family of Annular Quadrant Silicon Photodiodes.
The group consists of Lumex (LED and LCD technology, headquarters in Carol Stream, IL and Taiwan), Cal Sensors (IR detector and emitter technology, based in Santa Rosa, CA) and Opto Diode (LED, silicon photodiodes and electro-optical assembly technology, based in Newbury Park, CA).
In addition, these devices became very proficient in photopic sensing, which is the ability of silicon photodiodes to sense light in a way which emulates the human eye.
The nitrided-oxide front window of the AXUV 100GX diode provides up to a Gigarad (SiO2) of radiation hardness which is 10,000 times greater than standard PIN silicon photodiodes.
The system's X-ray detectors are solid-state silicon photodiodes combined with cesium iodide scintillation crystals.
Semicoa is a leader in the design, development and manufacture of discrete semi-conductors and silicon photodiodes for high reliability military/aerospace and commercial markets Semicoa's product offering includes a complete line of standard products and customer specific devices.
Semicoa is a leader in the design, development and manufacture of discrete semiconductors and silicon photodiodes for high reliability military / aerospace and commercial hi-rel markets.