Class IIIA level, visible low green output of continuous USB laser pointer. Like Class II, Class II is not used, and no direct observation with light may increase the risk. Yuanwang I laser equipment can avoid being observed by 1-5mW high powered laser beam. Shine into the eyes of others. The level in Figure 3 (a) will not cause damage to the naked eye and avoid opening the normal human eye reaction, but it does cause damage to the human eye when using the observation lens device.
Various countries impose heavy penalties on attacks using laser pointers. Dr. Zhou Bozhan, the former dean of the Hong Kong Academy of Ophthalmology, explained that once the laser is irradiated in a straight line, multiple cells and tissues in the eye can be injured. Macular area. If the lens of the eye is injured, it can cause cataracts. In the most serious case, exposure to less than 0.1 seconds is enough to cause blindness.