Useful laser Pointers may be limited
If you aim a person's eye at close range, most or all of the light will pass through the pupil. The already focused light is further focused by the lens to a strong (" finite diffraction ") point on the retina. According to the US Food and Drug Administration (FDA), as of April 2012, there have been no reports of eye injuries due to transient exposure to green laser pointer of less than 5 milliwatts. In the United States, there have been more than 150 cases of permanent eye injuries due to misuse of high-cost electric lasers. The planes in the distance look like stars. Therefore, do not point directly at faint or unknown "stars". Instead, it moves the beam around the object in a circular motion. As you move in circles or "pull" constellations, continue to move the beam away from any "stars" as they may be aircraft.Standard laser Pointers operate at about 3-5MW, while handheld Pointers can be much more powerful. To put that in perspective, a military-grade laser needs to be at least 100kW or 250,000 times more powerful than a handheld laser pointer, and 25 million times more powerful than a standard laser pointer.
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In some jurisdictions, there are limits on laser power. As a result, your available laser Pointers may be limited. However, you can do it in countries/regions where there are no laser restrictions. So the question is, "How much power?" The absolute limit for this application should be around 50mW. There is no objective reason to need more than 50mW for pointed applications. Astronomical numbers. Somewhere between the laser pointer and the harmless laser weapon is the handheld laser pointer, commonly used in astronomy, thermal experiments, and remote lighting. While hand-held high powered laser Pointers are too weak to be considered weapons, many have the ability to pop balloons and burn through cardboard or thick plastic. If you're looking for information on how to choose a pocket laser pointer, read on and learn exactly how to choose it.Since the power of the handheld laser pointer decreases after the first peak, the laser continuous grading - the average output power over a period of time, and the peak - the highest output power of the laser, will be reached before the power begins to decline.
2021-12-17 10:53:01
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