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The laser in the Laser pointer is the light emitted to the surrounding atoms after the particles are irradiated by photons during the energy conversion process. It has strong directivity, strong brightness, strong coherence and monochromaticity. The beam of the laser pointer can be precisely aligned to the focus to form a layer of high density, so that it will be near the focus. When the focus is gathered, the temperature rises, which is the thermal effect of the laser.

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When the laser light works, it usually depends on the efficiency density. In the process of studying the interaction between laser and matter, the gate valve is a common concept of the ability of matter interaction to produce together. At present, the colors of laser pointers on the market are mainly red, blue, and green. Red is common, and the price is relatively low. Green laser pointer are rare and relatively expensive.

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The "laser pointer" (also known as "laser pointer", line mark "pin", etc.), for easy portability and portability, has been equipped with a laser plug-in. The green star pen is commonly known as the star pen. If it is 100 kilowatts or more than 100 kilowatts, it has already generated too much electricity. In this case, the notebook will be like a green laser pointer at 200 pounds, and it will withstand the use of high-power assembly molds. It’s more likely to be burnt if too much heat...

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