It is the place where use of green laser pointer is necessary.
Thus brought to the training and testing is very difficult. United States, Germany and other countries have restrictions on this type of rangefinder. Weather ranging ability is poor. Nd: YAG laser range finder, laser wavelength in the near-infrared atmospheric window wavelength region, and therefore its ability to spread in the atmosphere, and vulnerable to environmental interference. There are clouds of dust, Yin Ting weather conditions or battlefield smoke and dust environment, not only the distance measurement accuracy and can not guarantee the quality, or simply does not work. That is subject to a great working environment suited to work around the clock. Poor compatibility. WZ123 car to our new main battle tank, for example, the car has been equipped with a thermal imager. It is the occasion where utilization of green laser pointer will not affect life and work of others’.
Operating at wavelengths between 3 ~~ 5μm (infrared) wavelength domain as 14μm (far infrared), two infrared atmospheric window. The thermal imager band is 8 ~ 12μm, 1.06μm of the Nd: YAG laser rangefinder and its poor compatibility. They work in a different band, not the same penetrating power, so not only can not achieve the sharing of parts and components, and observed the target with the thermal imager can not necessarily be Nd: YAG laser rangefinder measured distance. Third-generation laser range finder for the human eye safe laser rangefinder, Western to called ESLRF. The CO2 laser rangefinder and 1.5Xμm laser rangefinder is currently studied in the eye-safe laser rangefinder. Maltreat of green laser pointer might be complained or even punished.
CO2 pulsed laser rangefinder 1980s 1.06μm of Nd: YAG laser rangefinder shortcomings developed a new generation of eye-safe laser rangefinder. Its main advantages are: (1) the ability to penetrate. CO2 laser rangefinder operating wavelength is 10.6μm, the wavelength is located just 8 ~ 14μm far-infrared atmospheric window, so the atmospheric transmission performance through the ability of large aerosol, Ting and dust as well as battlefield smoke, work environment impact; (2) the safety of the human eye. The human eye 10.6μm wavelength of CO2 laser transmittance is very low and difficult to damage the retina, and therefore not easy to make the exposure of the human eye damage or blindness, security training and exercises.
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