Principle of flat laser pointer
But some models have one. "Normally open" environment. These have become standard equipment for telescope pointing AIDS. Once the laser is installed and aligned with the scope, you simply turn the scope until it points at your target celebrity, where it is when you appear in the eyepiece. The wireless laser pen mouse with remote control is composed of remote control mouse, laser electronic high powered laser pointer and receiver, etc. The remote control mouse is ergonomic design, stylish appearance, comfortable feel, and photoelectric technology is used in the mouse part, which is different from the previous mechanical trackball roller mouse. Built-in laser pointer function in the demo is an important tool to indicate the focus. USB receiver, installed without any driver, plug and play. For the eyes of nearby people, almost or all of the light passes through the pupil. The already focused light is further focused by the lens to a sharp point on the retina (finite diffraction). According to the US Food and Drug Administration (FDA), as of April 2012, we have not received any reports of laser damage below 5 milliwatts.
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Why do lasers hurt your eyes?
Similarly, three British eye doctors wrote in April 2016 that the misuse of the most powerful lasers has led to 150 permanent eyeballs in the UK). Increasing laser power can increase eye damage. Blinking won't help either. If the visible viscosity exceeds 10-20 milliwatts, the retina will be damaged even if it hits the nearby eye sharply and directly (where all the light enters the pupil). Therefore, portable lasers can pop balloons and light bulbs and cause immediate eye damage at close range, without even causing minor eye damage to the pilot of an aircraft. The pilot's eyes are far away (not all light enters the pilot's pupil because the laser beam travels over distance).
2021-12-02 12:26:42
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