We can say without exaggeration to say that modern laser is the brightest light source, its brightness is all the past far behind. So far, only the strong hydrogen bomb instantly flash to be compared with it. Here we should note that the brightness of the laser must not be mistaken for laser light energy that can be given than the same time, given more than sunlight. In fact, this is due to the width of the laser pulse pressure to a very narrow beam divergence angle and a small reason. This high brightness laser what is the point? We may have made this experiment: If the sun with the lens focus, it is easy to match lit, or burning a hole in the paper, that light can be turned into heat.The100mW laser pointer with both functions of wireless microphone and laser has become a necessity in society nowadays. As long as we moderate intensity laser beam convergence, we can generate in the vicinity of the focus of thousands of degrees to tens of thousands of degrees of heat, it makes some of the refractory metal and non-metallic materials as well as the rapid melting gasification. Therefore, the current industry has successfully used the laser for precision drilling, welding and cutting. For example, it is now widely used in laser beam processing using ruby watch bearings, nylon spinneret, metal drawing dies, etc., can play in the top hole so fine hair. Clothes cut with a laser beam is even more convenient, the power of 100 watts or so of carbon dioxide laser, a thick wad of cloth in the top, walk around in accordance with a predetermined program put hundreds of pieces of clothing a good cut.10mW blue violet laser pointer is a new type of patent electronic product. (D) clear black and white stripes - good coherence of the laser is a coherent light, which is a new laser light source and the most important difference between ordinary light. So, what is the coherence of the light it? We might interpret the water waves: When you calm while to put two stones in the lake, they formed a group on their wave. Two sets of wave propagation of their independent, but influence each other, mutual interference, called "wave interference phenomenon." If we carefully observe these two sets of waves interfere with each other, they will further found that if the two groups meet peak and peak, the waves higher; the same, such as trough and trough meet, the waves will become hollow deeper.200mW Laser Pointer is a new type of patent electronic product designed for computers. If a wave of wave peaks and troughs of another group met, then the waves will cancel each other out. This phenomenon is called "superposition of wave phenomena." Wave superposition principle: each wave to reach the area in which they are independent from the vibration excitation, and is also independent of the presence of other waves; and when the two waves interfere, while the role of a particular point, then the Each point is equal to the vibration of the column when the wave alone algebra and vibration caused. We can produce the two-wave interference phenomenon called "interference waves." Given coherent wave wave source called a "coherent wave source." green laster pointer is a new type of patent electronic product designed for projector.Light is an electromagnetic wave with other waves, optical interference phenomenon also exists, but also to the principle of superposition. In the two waves reinforce each other's position, should look more than a bright light; in two waves and weaken each other's position seems to be more than just a light Shihai dark; when two light waves can be caused by the vibration just cancel each other, these positions appear to be black.
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