We should use the laser rangefinder correctly
Correct use of laser rangefinders
Lasers are high-intensity light source radiation equipment. High-power lasers can be used to cut and weld metal materials. Therefore, lasers have serious hazards to the human body, especially the human eye, and special attention should be paid when using them.
There are common classifications and common safety warning signs for lasers in the world. Lasers are divided into four categories (Class1 to Class4). Class I lasers are safe for people, Class II lasers are less harmful to people, and lasers of Class III and above are safe. Lasers have serious hazards to people, and special care should be taken when using them to avoid direct exposure to human eyes.
In the early 1990s, several major companies in Europe and the United States successively produced semiconductor laser diodes for commercial use, which revolutionized the practical application value of lasers. Other types of lasers are too messy because of the mechanism of laser generation, which makes them particularly large in size, weight, and high power consumption, which greatly restricts the use of lasers. The emergence of semiconductor lasers makes these problems easy to deal with. With the further maturity of semiconductor laser technology, the price has gradually dropped, and its application volume and application field have continued to expand. Judging from the current opening speed, the application prospect is very promising. Semiconductor lasers are small in size, light in weight, high in reliability, high in conversion power, low in power consumption, simple in driving power, can be directly modulated, simple in structure, low in price, safe to use, and have a wide range of applications. Such as optical storage, laser printing, laser phototypesetting, laser ranging, bar code scanning, industrial exploration, inspection and measuring instruments, laser flashing, medical equipment, military, security, field exploration, construction leveling and marking instruments, laboratories and education Demonstration, stage lighting and laser performance, laser level and various marking positioning, etc. Some common interests of semiconductor lasers make them very suitable for military applications, such as field ranging, aiming of guns, shooting imitation systems, blinding, submarine communication guidance, fuzes, security, etc. Because it can be driven by ordinary batteries, it is possible to equip some portable weapons and equipment.
The wavelength bands of semiconductor lasers that have been announced and put into the market are 370nm, 390nm, 405nm, 430nm, 480nm, 635nm, 650nm, 670nm, 780nm, 808nm, 850nm, 980nm, 1310nm, 1550nm, etc. Among them, 1310nm and 1550nm are mainly used for fiber optic communications. 405nm-670nm is the visible light band, 780nm-1550nm is the infrared light band, and 390nm-370nm is the ultraviolet light band. High-tech products and professional technology lead the trend of rangefinder operation. The advantages of many types, complete types, high precision, and easy to carry are more convenient for the selection and application of a wide range of users. Meet the application needs of each job!
