Some places where laser pointers need to be used with caution

The laser pointer should not be used frequently, and long-term use should not refer to laser stargazing. Otherwise, it may interfere with other stargazers and photography. In addition to a series of safety information, the operation of the laser pointer should also arouse great attention. In the gallery, some paint may be afraid of light, which is not suitable for used green laser pointer. In the zoo, in order to avoid frightened animals, laser pointers should not be used as well. Add some wires and power to the stepper motor controller and blue line laser pointer, my total material cost is very low. Of course, my time is not cheap, but what I like to do!When astronomers and astronomers point the low-power 5mW green laser pointer at the sky, laser users should always be vigilant while enjoying the wonderful fun brought by the mysterious outdoor space. The laser pointer should not be used frequently, and long-term use should not refer to laser stargazing.

Green is an average wavelength, so it scatters more and more clearly than longer wavelengths (such as red). The laser 20MW class 3B can have an output power of up to 500 milliwatts (half a watt) and a laser with an output power of about 100mW, and can easily melt the black plastic, making the hole in the shell and jetting black balloons or black balloon markings, The beam looked like a sticky green stick. When used outdoors, the beam seemed to hit the stars. The unit of 15mw laser power output is milliwatts, ranging from 5mW to 300mW. The diode laser pointer initially produces a beam of 690 nm. The difference between 633 and 690nm may seem small because both are visible red wavelengths, but as explained by the human eye, the difference is large.