A photodiode is a semiconductor diode sensitive to photon radiation, such as visible light, infrared or ultraviolet radiation, X-rays and gamma rays. It produces an electrical current when it absorbs
One Ge (top) and three Si (bottom) photodiodes
A one-dimensional photodiode array chip with more than 200 diodes in the line across the center
An image sensor or imager is a sensor used for imaging. It detects and conveys information used to form an image. It does so by converting the variable attenuation of light waves into signals, small b
Photodiode
…and no image lag was invented by Sony in 1975. This scheme was widely used in many applications of charge transfer devices. Early charge-coupled device image sensors suffered from shutter lag. This was largely explained with the re-invention of the pinned photodiode. It was developed by Nobukazu Teranishi, Hiromitsu…
A micrograph of the corner of the photosensor array of a webcam digital camera
Image sensor (upper left) on the motherboard of a Nikon Coolpix L2 6 MP
Infrared view of the Orion Nebula taken by ESO's HAWK-I, a cryogenic wide-field imager