I believe everyone often hears that some users say that the rangefinder manufacturer marks 1000 meters, but why can't we measure so far when we use it? This kind of problem is often mentioned in the rangefinder telescope industry. In fact, this problem , mainly because the user does not understand a principle of the ranging telescope, and the communication with the manufacturer and the user is poor.
At present, the long-distance laser ranging telescopes on the market are developed based on the principle of pulsed lasers, and the distance is measured by using the time of the laser light wave round trip. According to the characteristics of this pulsed laser, therefore:
The lighter the specific color of the target, the better the reflection effect on light waves, the easier it is to reflect back, and the more light waves are received by the machine; the darker the light absorbed by the dark target, the less light waves.
2. The larger the target object, the more reflected light waves, the easier it is to be received by the machine, and the better the effect;
If there is fog in the air or heavy haze, it will hinder the return of light waves and affect the measurement distance. Therefore, the better the air quality, the better the measurement effect.
The influence of strong light on the measurement, the rangefinder designed by the principle of pulsed laser must use the 905 wavelength, which is consistent with the 905 wavelength band in sunlight. If the sunlight is strong and dazzling, it will interfere with the return light wave and weaken the machine. range of.
5. The flatter the surface of the target object, the more light waves are reflected, and the easier it is to be received by the machine; the better the effect; the amount of reflection, in summer we wear black clothes in the sun, because black clothes absorb light, it feels hotter than white clothes in the sun .
