Shenzhen, the third generation of dot-matrix infrared cameras forever the needs of customers in the first place 
 Company:, Xinpeng An, Shenzhen City Electronics Co., Ltd. 
 Publisher: Chen Wenxi 
 Phone: 0755-29122522 
 Phone: 13510663229 

 Achieve night vision, you can use a conventional visible light illumination, but this method not only can not be hidden, but more exposed to the monitoring objectives. Covert night vision surveillance, are based on infrared camera technology. The infrared camera technology is divided into a passive infrared camera technology and active infrared camera technology. Passive infrared camera technology is the use of any object above absolute zero (273 ° C) has the infrared light emission principle. The human body and the heat objects emit infrared light strong, the red light issued by other non-hot objects are very weak, so the use of special infrared camera night surveillance can be achieved. Passive infrared camera technology due to the high cost of equipment and does not reflect the surrounding environment, so in the night vision system is not adopted. Active infrared camera technology to use a special "infrared light" artificially produce infrared radiation, resulting in the human eye can not see ordinary camera can capture infrared light, radiation "lighting" scenery and the environment, the use of ordinary black and white low-light CCD camera or use during the day color at night automatically change to black and white camera or color camera with infrared illumination to feel the ambient infrared light reflected back in order to achieve night vision function.