To confirm the price of green laser pointer

The tests showed that it can damage within eight kilometers of the photoelectric sensor. Late Gulf War the U.S. military once described two prototype shipped to the Gulf battlefield ready for trial, but have not carried out due to the war soon ended. Laser weapons also has shortcomings, most notably: As the range increases, fell on the spot on the target increases, the lower energy density, destructive power weakened, the effective distance is restricted; on the ground or aircraft, atmospheric laser stronger the attenuation effect, adverse weather, battlefield dust, artificial smoke screen, laser attenuation, atmospheric refraction and disturbance will be difficult to aim at a target. Several foreign experts ofgreen laser pointerwill be invited.
The laser energy conversion efficiency is low, the need for adequate energy supply, the current technical conditions, laser weapons, the larger size and weight, limiting its use. The same as the difference between microwave radar and laser radar, communications from the microwave range turned to the visible range. Laser communication is based on the laser carrier, free space communications technology for the transmission medium. In terms of long-distance transmission of information, laser communication because of its wave length, the divergence angle is small, the power density available at the receiver to the order of magnitude improvement for optical free space transmission, only need a small telescope and a very low transmit power ; and can also use light to high-density data rate transmission. The oversea visiting delegation ofgreen laser pointerwill 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 ofgreen laser pointerwith more coupons ofgreen 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 green 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 green laser pointer companies promise that they will not increase the price of green laser pointer.