Many friends have had such confusion, want to buy an infrared camera, do not know the production of infrared camera manufacturers which good? What brand of infrared cameras is the best seller? Which company has the highest cost of infrared cameras? And so on, with these confusion, to check online, want to find the answer, the results are more confused. The search for infrared cameras is dazzling. The infrared camera of odd shape meet the eye everywhere, what infrared camera, infrared night vision cameras, high-speed ball infrared camera, IR camera, infrared camera integration, and so on, too much, so what the infrared camera which is better? Infrared camera how to choose, today we give you a brief introduction:
Camera, camera, infrared lamp, infrared lamp power supply; the camera referred to here is low illumination camera, infrared wavelength and infrared lamp emission of the camera lens is capable of receiving, for night vision camera, the main index is F-measure, F-measure smaller, better vision effect.
1, the camera in the minimum illumination when the definition of the image is tested by the TV signal test card, its black and white stripes, requiring black reflectivity near 0%, white reflectance is greater than 89.9%. We observed in the field when sometimes do not have such conditions, such as reflectance of leaves and grass and something black is very low, the contrast is very small, it is not easy to get a clear image, high reflectivity white things, the contrast is large, it is easy to get a clear image. An infrared camera is passive infrared; that is to say, the effect is not only the quality of infrared and infrared light are related with CCD red sensitive relationship, and according to the reflection intensity of the object relation...... That is to say, the same camera, a man in white, may see clearly in the one hundred meters, and the man in black may not see clearly in the forty meters;
2, each person's standard is not the same, see 100 meters, one hundred meters to see clearly refers to an elephant or see a chicken? More likely is a little mark is found with the actual distances are different...... That distance see is a man, refers to the sight of a man; the actual distance refers to look at a person can see the outline of a person; there is a possible difference in the subjective difference is, everyone's eyes are not the same, the subjective feeling is different, with a camera some people say that, you can see sixty meters, some say only thirty meters;
According to their own needs, the choice is 30 meters infrared camera, 50 meters infrared camera, 80 meters infrared camera, or 100 meters infrared camera. Only to understand their needs, in order to find a really suitable for their products.
3, can not be denied, even if the condition is really not the same, or a lot of low-quality manufacturers, is actually a processing plant, regardless of reputation, some things out of order, I have seen people dare to take four points to a SHARP as SONY, there are 24 light cameras, infrared distance cost about more than 100 dollars. The machine at one hundred meters, halo...... Now, ah, that is, we all pursue low prices, long-distance, engineering companies unrealistic pursuit, resulting in some equipment vendors terrible lie......
The so-called is a price, a goods, in order to buy cheap things, do not complain about the quality of manufacturers is not good. People who waste money on tools are the most wasteful people. Free is the most expensive.
The actual effect of 4, infrared cameras, in addition to the circuit with CCD induction lamp, quality, quality, lens and other factors, there is a certain relationship with the quality of the installed personnel; some of the problems can be solved, such as halo, flashlight phenomenon, when installed can pay attention in addition, the infrared light is excluded; the effect of protective cover is also affected, the infrared light in the transmission process, through different media, transmittance and reflectance are also different. Different window glass, especially automatic defrosting coating glass, have different attenuation of infrared light.