Application Selection photodetector element detector structure is actually a few things or points when applied. Less stringent requirements in many applications, can be any of a photodetector element. However, in some cases, the choice would be more appropriate for some devices. For example, when you need a relatively large photosensitive area, the choice of vacuum photocell, its spectral response range is wide advertising optoelectronic products, it is widely used in vacuum phototube spectrophotometer. When the measured radiation signal is weak, requiring high speed response optoelectronic products, using photomultiplier optoelectronic products most suitable packaging, because of its magnification up to 'over optoelectronic products design, this high gain output signal exceeds it noise components within the amplifier circuit, so restrictions on the detector only photocathode current statistics change. Thus, in terms of astronomy, spectroscopy, laser ranging and scintillation counting photomultiplier tubes are widely used. Works photodetectors is based on the photoelectric effect, based on the material absorbs heat detector light radiation energy after the temperature rises, thereby changing its electrical properties, it is different from the photon detector is the biggest characteristic of optical wavelength radiation-free selectivity. Optoelectronic products manufacturing _ Jin Precision (certified) _ Huidong 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.