Cadmium sulfide and cadmium selenide CdSe CdS photoresistor is visible band most used two photosensitive resistance; lead sulfide PbS photoresistor is working through the first infrared photoresistor main window, work room PbS photoresistor response to the atmosphere the wavelength range of 1.0 to 3.5 microns, 2.4 microns wavelength around the peak response; indium antimonide InSb photoresistors primarily used to detect atmospheric second infrared transmission window, the response wavelength 3 ~ 5μm; spectral response of HgCdTe device in 8 ~ 14 micron semiconductor optoelectronic products, the peak wavelength of 10.6 microns, and CO2 lasers to match the laser wavelength, the third window for detecting the atmosphere (8-14 microns) photoelectric conversion characteristics ° photodetector must incident radiant energy phase match. Among the first to note the device and the irradiation light sensitive surface to be a good match, because light must shine valid location devices, such as light position changes, the photoelectric sensitivity will change. As photoresistor is a variable resistor optoelectronic products of choice, a light part of the resistance is reduced, so that the light must shine on the coating photoelectric products in all resistor between the two electrodes in order to effectively use all of the photosensitive surface. Photodiode, phototransistor photosensitive surface only a very small junction near the area of ??optoelectronic products, it is generally the entrance window of the lens as light, we should focus of the lens is aligned with the photosensitive sensitive point. To change the center of an incident flux is within the photovoltaic properties of the device to detect linear range to ensure good linear output. The weak optical signals, the device must have the appropriate sensitivity, in order to ensure a certain signal to noise ratio and output signals strong enough; optical optical products | Kim Hing Precision (certified) | Dongguan photovoltaic products from the Huizhou-precision parts Limited. Huizhou Hing Precision Parts Co., Ltd. (hzjxbp.com) (www.hzjxbp.com) is an industry leader in Huizhou, Guangdong, the standard mold, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. In the gold-Precision leadership with the staff warmly welcome all inquiries negotiations to create a gold-precision better future.