laser pointer can support the normal display of various documents

laser pointer  can support the normal display of various documents.
The laser sensors are commonly used in the measurement of length, distance, vibration, speed, direction and other physical quantities can also be used for crack detection and monitoring of atmospheric pollutants. Laser ranging sensor principle and application of the principle of laser ranging to its principles and the same radio radar, will shoot out the laser at the target and measure its round-trip time, and then multiplied by the speed of light, the round-trip distance. Laser has the advantages of the high directionality, high monochromaticity, and high power, the measured long-range, determine the target position, and improve the signal to noise ratio of the receiving system, to ensure measurement accuracy are critical, so the laser range finder received increasing attention. The laser range finder based on the development of laser radar can not only ranging. In addition,  laser pointer  can help users look through webpage.
But also can detect the target orientation, velocity and acceleration of the Yun Yun, has been successfully used for ranging and tracking of the satellite, such as the use of the ruby laser lidar, ranging from 500 to 2000 km, the error is only a few meters. Is often used ruby laser, the neodymium glass laser, CO2 laser and GaAs laser as the light of the laser range finder. The advantages of the laser ranging sensor: the advantages of the laser ranging sensor laser ranging sensor, the INSIGHT-60 core indicators. Laser ranging sensor. Measuring distance range 0.-60 m, 200 m, to use reflectors. Full precision error of 1.5 mm. Most of  laser pointer are wrapped with plastic or metal.
Laser continuous service life of more than 50,000 hours (5 years), with a standard RS232, RS422 serial communications 6, along with the digital signal and the 4-20MA simulation model output. Analog signal corresponds to the distance the maximum value can be set to 27, the laser ranging sensors and Ethernet standards ASC2 yards, concise and practical communications software to ensure the accuracy of field work to facilitate a transmission time laser distance sensor laser detection field is very broad, very rich in technical content, the impact of social production and life is also very obvious. The laser rangefinder is a laser one of the earliest applications. This is because the laser has a strong directional, high brightness, good monochrome many advantages. The shooting distance of green ray  laser pointer  is 39 times higher than that of the yellow ray  laser pointer .The wireless presenter laser pointer  is equipped with hyperlink function and so on
1965 years ago, the Soviet Union the use of laser measurements between the Earth and Moon from (380'103km) error is only 250m. Americans landing on the moon in 1969 Home reflector on the lunar surface with a laser to measure the Earth-Moon distance, the error is only 15cm. The basic principle of laser transmission time to measure the distance by measuring the laser and from the target time required to determine the target distance.