How is laser pen circuit diagram made?
Inside the laser pen is a semiconductor laser, a kind of LED. An optical lens is usually added to the front for focus. The laser from the laser pointer is a solid laser, and the solid laser inside the laser pointer is also a laser diode. The current laser pointer is mostly red, can indicate the length of the relatively far. Laser pen also refers to the star pen, handheld laser and so on. Because it has a very intuitive visible beam, most used for indicating the name. Because of its bright beam and anti-stray light interference, it is widely used in teaching, scientific research, construction engineering, astronomy and other industries. Green and blue are rare, difficult and expensive to make.
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The point of the green laser pointer depends not only on the output power and apparent brightness of the laser reflected off the surface, but also on the color version of the human eye. For example, the human eye is most sensitive to wavelengths of the visible spectrum ranging from 520 nm to 570 nm, and less sensitive to red and blue laser wavelengths. As a result, the 532 nm green laser is brighter than other color lasers with the same output power. Some lasers emit radiation in the form of light. Others emit invisible radiation, such as ultraviolet or infrared radiation. In general, laser radiation is harmless in itself and behaves very much like ordinary light in its interactions with the body. Laser radiation should not be confused with radio waves, microwaves, ionizing X-rays, or radiation from radioactive substances such as radium.
2021-12-07 11:50:08
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