Laser distance measuring technology uses laser as a light source carrier, and achieves distance measurement through phase modulation technology or time of flight technology. 

 

Phase modulation technology for continuous laser ranging is mainly used in millimeter precision ranging fields within a hundred meters range, such as surveying and industrial measurement; The time-of-flight pulse laser ranging technology relies on high power pulse lasers and high sensitivity avalanche photodiode components to achieve long-range non cooperative target ranging, with a maximum ranging range of up to tens of kilometers. It is mainly used in fields such as national defense and military affairs, mapping, and laser radar.