Purchase order of night vision equipment
Purchase order of night vision equipment 1. Image intensifier:
It's from several generations. Be sure to confirm with the merchant when buying. Because the packaging and instructions of night vision devices generally do not indicate which generation of image intensifiers they are. Of course, if you want to buy a second-generation or third-generation night vision device, you can buy a night vision device with a clear label indicating which generation of image intensifier is used to avoid infringement of your rights. At present, the market, such as RHO's night vision devices in Russia, indicate on the product packaging and machine which generation of image intensifier tubes are used.
2. Lens:
Check the lens aperture and magnification. Without considering volume, of course, the larger the better. In the same case of an image intensifier, the principle is that the larger the aperture, the farther the observation distance, and the clearer the image.
3. Image enhancement technology:
Generally, night vision devices equipped with this technology have better image brightness and clarity under the same conditions.
4. Infrared transmitter:
The quality of this performance also directly affects the imaging quality.
5. Resolution:
The resolution of the lens is very important, as the higher the resolution, the clearer the displayed image.
As for the nominal observation distance and identification distance of the night vision instrument. Due to the lack of formal standards, various opinions vary. Actually, it has no reference significance. Generally speaking, the distance of the first generation is between 100-250 meters, the distance of the second generation is between 200-350 meters, and the distance of the third generation is between 300-500 meters, enabling clear viewing of objects. The specific factors also depend on the lens quality, image processing technology, infrared emitter, and resolution.
