Led flash light can effectively manipulate the turning over of the multimedia

The user should simply press the pageup button of green laser pointer  to turn over the page.
Blue spark method: remove the nozzle, blowing air, the pulse laser in a stainless steel plate, so that the cutting head from the top down movement, until the blue spark at maximum focus. For the light path of the cutting machine, the beam divergence angle, cutting the length of the proximal and distal processes of different time, pre-focused beam size there are some differences. Larger the diameter of the incident light beam, the smaller the focal spot diameter. In order to reduce the beam size before the change in focus brought about changes in the focus spot size, domestic and foreign manufacturers of laser cutting system provides a number of special devices for users to choose: collimator. This is a commonly used method, namely CO2 laser output plus an expanded beam collimator for processing, after the beam expander larger beam diameter, divergence angle becomes smaller, so that within the scope of work in cutting the proximal and distal focused beam size close to the front line. Increase in the cutting head of an independent movement under the lens axis, it nozzles to the surface and control the distance (stand off) the Z-axis are two independent parts. When moving the machine table or moving the optical axis, the beam axis from proximal to distal F also move, so after focusing the beam spot diameter is consistent throughout the processing area.  led flash light can effectively manipulate the turning over of the multimedia.
Obviously, compared with inert gas, the use of oxygen as an aid to get a higher gas cutting speeds. Has two sources of heat in the oxidation of molten cutting process, if the oxygen burning faster than the laser beam speed, kerf width and rough look. If the speed of the laser beam moves faster than the combustion of oxygen, the resulting narrow kerf and smooth. For easy heat damage to the brittle material, heated by the laser beam for high-speed, controlled cut-off, called the control fracture cutting. This cutting process is the main content: the laser beam to heat a small area of brittle materials, causing a large thermal gradient in the region and severe mechanical deformation, leading to the formation of cracks in materials. As long as a balanced heat gradient, the laser beam can be guided cracks produced in any desired direction. It should be noted that this control is not suitable for cutting acute fracture and cutting edge kerf angle. Closed form is not easy to cut big success. Control fracture cutting speed, does not require high power, otherwise it will cause surface melting, destruction kerf edge. The main control parameter is the laser power and spot size. This kind of green laser pointer is very electricity-saving.

Control focusing mirror (usually metal reflector focusing system) pressure. If the focused beam size before leaving the smaller focus spot diameter becomes larger, the automatic control of pressure to change the focus of curvature smaller focal spot diameter. Flying optics cutting machine by x, y direction of the optical system of compensation. That is, when cutting a remote optical path increases to compensate for optical path shortened; the other hand when cutting near the optical path is reduced, the optical path to increase compensation in order to maintain the same optical path length. Any kind of thermal cutting technology, except for a few cases can be started from the edge of the board, in general, must wear a hole in the board. Compound earlier in the laser punching machine is the first out of a hole punch, and then use the laser from the hole to start cutting.  green laser pointer with remote control is composed of a emitter, a receiver and a USB port.