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Development history of Laser rangefinder

2023-07-19

Laser rangefinder is an instrument that uses certain parameters of modulated laser to measure the distance to the target. The measurement range of the Laser rangefinder is 3.5 to 5000 meters.

It can be divided into phase method Distance measuring equipment and pulse method Distance measuring equipment according to distance measuring mode. When the pulsed Laser rangefinder works, it emits a beam or a series of short pulse laser beams to the target, and the photoelectric element receives the laser reflected by the target. The timer measures the time from emission to receiving the laser beam and calculates the distance from the observer to the target. The phase method Laser rangefinder detects the distance by detecting the phase difference between the transmitted light and the reflected light when they propagate in space. The Laser rangefinder is light in weight, small in size, simple in operation, fast and accurate, and its error is only one-fifth to one percent of that of other optical Distance measuring equipment.

The Laser rangefinder is an instrument that uses certain parameters of modulated laser to measure the distance to the target. The pulsed Laser rangefinder emits a beam or a series of short pulse laser beams to the target during operation. The photoelectric element receives the laser beam reflected by the target. The timer measures the time from the time of emission to the time of receiving the laser beam, and calculates the time from the measurement onwards. The distance from the instrument to the target.

When the emitted laser beam power is sufficient, the measurement range can reach around 40 kilometers or even further. The Laser rangefinder can be operated day and night, but when there are substances with high laser absorption in space, the distance and accuracy of ranging will be reduced.

The first laser in the world was the Ruby laser developed by Mayman, a scientist of Hughes Aircraft Company in 1960. On this basis, the US military quickly carried out research on military laser devices. In 1961, the first military Laser rangefinder passed the military demonstration test in the United States, and then the Laser rangefinder soon entered the practical stage.

As the price of Laser rangefinder continues to decline, the industry has gradually begun to use Laser rangefinder. At home and abroad, a number of new miniature Distance measuring equipment with the advantages of fast ranging, small size and reliable performance have emerged, which can be widely used in industrial measurement and control, mines, ports and other fields.

Laser is a new technology developed in the 1960s. It is a type of light with very pure color, highly concentrated energy, and good directionality. Laser rangefinder is an instrument that uses laser to measure distance. Its working principle is simple: measuring distance by measuring the time from the laser emission to the laser reflection from the target. For example, the Laser rangefinder is used to measure the distance of the moon. If the time from laser launch to lunar reflection is determined to be 2.56 seconds, then the one-way time for laser launch to the moon is equal to 1.28 seconds, and the speed of the laser is velocity light, equivalent to 300000 kilometers per second. Therefore, the measured distance from the Moon to Earth is the product of one-way time and the speed of light, which is 384000 kilometers. The Laser rangefinder consists of a laser transmitting machine, a receiving machine, a clock frequency oscillator and a distance counter to transmit and receive laser and time.

The Laser rangefinder can also be used to track and range satellites, measure aircraft altitude, aim and range targets, and conduct topographic mapping and survey.


JIOPTICS laser rangefinder module has the advantages of high quality, great performance, small size, low power consumption, etc. Its professional knowledge and cutting-edge technology provide you with solutions for different measuring distances from 1km-300km.

In the past 10 years, we have provided reliable range finder solutions for different types of companies, which are widely used in the integration of unmanned aerial vehicles, artillery, aircraft, ships, thermal imaging and other systems. Strong scientific research capabilities provide OEM/ODM customization services for you. If you need customization, we will be your reliable partner.

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