However, laser Pointers are of little use in the broad entertainment industry beyond real Pointers, and in many places proximity to people with Pointers is banned as a potential hazard. In rare cases, laser gloves worn by professional dancers on stage may be used as Pointers. Unlike Pointers, they typically produce a low-power, highly divergent beam to keep the eye safe. Once or twice, these clues have been used by magicians as props in magic shows. With the advent of laser Pointers, lasers became popular in our daily lives, and the more standardized the lasers we have, the easier it is to forget their power. So how do you know if a laser is too powerful to be used casually? The answer is laser class.
The most powerful laser on the market is the green laser. High power lasers must have a maximum power of 5 mW to be approved by the FDA for legal sale and possession. This regulation makes class 3R/3A lasers the most powerful on the market. These laser Pointers are commonly used in classrooms, conference rooms and laboratories. It's also an excellent tool for construction workers and astronomers. The laser must be less than 5mW to be considered a class 3R laser. These Laser Pointer are considered safe if the beam display is limited. Looking at the beam reduces the risk of injury. Category 3 lasers should include a label warning conveying content consistent with the "avoid direct contact with eyes" policy. With thousands of milliwatts (!) Pointers to power are available on the Internet. Of course, this is illegal and can cause serious eye damage. This is because the light gets refocused by the lens of the eye and hits it multiple times. This glare can cause permanent damage to the retina, cornea and optic nerve. In extreme cases, you can end up with burn scars!