Τι είναι το κλειδί σημεία για αγορά υπέρυθρες νύχτα όραμα συσκευές% 3f

1. Booster tube: it is several generations. When you buy, be sure to confirm to the merchant. Because the night vision device packaging and instructions are generally not labeled with a few generations of booster tube. Of course, if you want to buy 2 or 3 generations of night vision devices, it is best to buy a clearly marked is a few generations of booster tube night vision devices, so as to avoid infringement of your rights and interests. Currently on the market, such as the Russian RHO night vision device in the product packaging and the machine are labeled with the use of the first generation of booster tube.

2. Φακός: look at the φακός διαμέτρημα και μεγέθυνση. In the case of not considering the volume, of course, the large the better. The same tube situation, in principle, the larger the caliber, the farther the observation distance, the clearer the image.

3. image enhancement technology: general with this technology night vision device, under the same conditions the image brightness will be better and clearer.

4. Υπέρυθρες πομπός: this performance is good or bad, but also direct impacts the image quality.

5. ανάλυση: the resolution of the lens is very important, the higher the resolution the the clearer the image displayed.
As for the night vision device nominal observation distance, identification distance. επειδή there is no formal standard, each said different. In fact, there is no reference significance. General speaking: 1 generation of the distance in 100-250 meters, 2 generations of the distance in 200-350} meters, 3 generations of the distance in 300-500 meters, able to see objects. Συγκεκριμένα επίσης θέμα στο μέγεθος του του φακού ποιότητα, εικόνα επεξεργασία τεχνολογία, υπέρυθρες εκπομποί, ο αντίκτυπος του η ανάλυση και αποφασίστε.