The oversea visiting delegation of Laser pointer will arrive next week

The oversea visiting delegation of Laser pointer will arrive next week.
Similarly, due to the laser wave length, the divergence angle is small, the antenna for laser communications can be made very small. In addition, laser communication is particularly important for submarine communication, attenuation penetrate the sea of blue or green when the smallest wavelength of 0.47 ~ 0.54m Blu-ray 100m depth spread the loss of only 1/100 of the other wavelengths. Penetration of blue-green sea water up to 600m above its propagation direction, and not to be intercepted by the enemy, and covert security, will greatly improve the Navy of its viability. Laser communications, however, there are some shortcomings, such as laser intensity attenuation in the transmission medium, the laser beam divergence problem, to overcome this problem is subject to the further development of laser technology. The customer can get a even lower price of Laser pointer with more coupons of Laser pointer .
Optical fiber communication technology, is based on a monochrome laser and wide bandwidth nature of the development of mature. Light as the carrier of the communication has been successfully serving our community. The directionality of the laser, the advantages of spread angle laser ranging has been particularly evident. Coupled with the high-energy laser, the distance of the laser ranging to hundreds of thousands of 1000 meters has reached the order of magnitude. Apollo laser ranging reflector placed on the surface of the Moon using laser ranging techniques, making accurate measurement of the Earth-Moon distance as possible. The laser rangefinder generally two ways to measure the distance: the pulse method and the phase method. Ranging pulse method. The customer wants to confirm the price of Laser pointer this afternoon.
Rangefinder emits the laser period of the object to be measured reflection after rangefinder to receive the range finder at the same time record the laser round-trip time. Half the speed of light, and round-trip time multiplied by the distance between the rangefinder and the object to be measured. The laser has a wide range of applications in the aerospace field, mainly described today in the research to the forefront of laser ignition, propulsion and control of combustion technology. (1) laser ignition: laser ignition technology as a new type of ignition technology has been increasingly subject to various national attention. When the laser intensity is high enough, the spot diameter is small enough, the radiation heat flux is high enough, the heat absorption rate will be far greater than the thermal diffusion rate leaving the energy accumulated rapidly, so that the laser ignition become possible. The two Laser pointer companies promise that they will not increase the price of Laser pointer .The principle of laser cutting. Laser cutting is the use of the focusing of high power density laser beam workpiece, so that the irradiated material rapidly melting, vaporization, ablation, or to achieve ignition, with the beam coaxial high-speed airflow to blow the molten material, in order to achieve the cut workpiece opened.