What is the power of the blue laser pointer 450nm?

In fact, when the laser irradiates or reflects into the human body, especially the eyes, the level 3 or 4 laser pen is dangerous. The higher the power, the shorter the exposure time causing damage. Avoiding a laser beam like a flame will make you feel safe. As long as you need to stare at the shining laser for a long time, professional laser goggles can protect your eyes. Class 4 laser indicators are ideal for use as combustion tools. Compared with the green or red laser pen, the blue laser beam is darker but more powerful and can burn objects. Experts said that usually the human body can withstand about 0.4 MW of laser power. If the power of the laser beam causes damage to the eyes, it will lead to permanent loss of vision. If it directly contacts the skin for a long time, it will cause burns. How to sell high-power laser pen? Long time exposure to the eyes will cause permanent damage to the macular area and affect lifelong vision. This infrared green laser pointer is mainly composed of a laser diode, a control unit, a power supply and a small laser generator. The power of laser diode is mainly used to generate a single wavelength excitation resonator beam, that is, the intensity of laser indicator. For lasers, power is an important index to measure the energy released per unit time.