Shenzhen infrared camera manufacturers - sub Gauss Technology
The center of the picture will appear with a white aperture, which is the LED angle, does not match the lens. 4 mm lens with narrow angle LED is definitely the center of the white circle, and if the high power big package, there will be donut effect. Because the CCD chip manufacturers most of the production of infrared camera is purchased, even if their own production, but also according to the others plan to do, the backlight compensation correction, AGC and AES set don't, there is even the LED board are ready to buy, how much point no one knows how collocation with the lens. Some machine in the assembly chamber are not even, even the test did not do the shipment.
If a normal day, the whole night white, Meng Meng, the problem is more big, it is because of overheating. CCD if more than 80 degrees Celsius, the dark current began to increase, white will be pulled up, the screen will be white or gray, is not normal, it looks like ghost effect, CCD hanging point down reheat. In particular, the so-called outdoor long distance infrared ray machine, after a few months, it is easy at night, a vast expanse of white.
If there is a sun shade too protruding, and with wide angle LED, playing out the infrared is sun shield bounce back will produce fog. Even with special infrared waterproof glass, and lens processing, also useless. And if the lens casing just to find a set of aprons, itself the light leakage, white mist and ran out.
Again is the moisture, blurred the lens, how can the picture be clear? Plus a dry bag or a nitrogen, the effect is not ideal, but also more than one month.
So, ya Gauss products are considered above some quality problems exist, in the materials, programs and production processes are strictly controlled, so that the factory each monitoring cameras are in line with industry standards.