Photoelectric conversion characteristics of the photoelectric detector must match the incident radiation energy phase. 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, a light on the lower part of the resistance, it must make the light shine on the entire semiconductor optoelectronic products resistor between the two electrodes in order to effectively use all of the photosensitive surface. Photodiode, phototransistor photosensitive surface near the junction area is a very small, it is generally the lens as light entrance window, put the focus point of the photosensitive sensitive lens alignment. To change the center of an incident flux detection photoelectric characteristics of the device is within the linear range of optoelectronic products designed 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; photoelectric detector must be well matched and the input circuit on the electrical characteristics, to ensure that there is sufficient conversion coefficient of linear range, signal to noise ratio and fast dynamic response and the like; optoelectronic products design, gold-precision (certified), Haizhu District photoelectric products offered by Precision Parts Co., Ltd. Huizhou Jin. 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.