Although the Laser pointer on the market have reduced the power to a large extent, the eyes, especially the eyes of children who are still under development, are very fragile. When the laser is directly shot into the eyes, it may burn the children's eyes. Therefore, parents must pay attention to avoid letting children come into contact with laser pointers and other laser toys. The so-called laser is the light emitted during the energy transition of the particles around the atom after being excited by photons. It has the characteristics of high brightness, high directivity, high monochromaticity and high coherence. The beam can be accurately focused on the focal point, and produces a high power density, so that high temperature is generated near the focal point, that is, the thermal effect of the laser. Strong light damages the nerves of the eyes. Laser is a high-density light energy. It is a single wavelength, that is, monochromatic light. A weak laser will feel very dazzling when it is directed at the naked eye. A slightly high-power laser will make the eye. Temporary blindness, high-power light intensity can directly damage the eye nerves of a person, leading to blindness. This is also for visible light, infrared or ultraviolet non-visible light that is invisible to the human eye, and there is no sensory stimulation to the nerves of the human eye.
Due to the strong focus of the laser pointer, the irradiated part can produce a heating effect, which satisfies the children's novel psychology and is widely welcomed by primary and middle school students. Parents and teachers have certain blind spots and misconceptions about the quality and safety of laser pointers, usage methods, and sales channels, and children also lack the necessary awareness of self-protection. When playing, exposure for a long time can cause damage to the eyes and skin surface, resulting in permanent damage. Fourth, when consumers buy children's toy guns, they can confirm whether the toy has a laser by checking the outer packaging, trying the product, or consulting the sales staff. Consumers are advised not to buy toys with laser shooting function or laser aiming function for children. If you have purchased related products, you should carefully check whether the laser radiation category is Class 1. For laser toys that exceed Class 1, it is recommended to stop using them immediately. The harm of the laser pointer depends on the damage to the eyes of these three elements. There are many factors that depend on the damage of the laser pointer, which is mainly related to the power, wavelength and irradiation time of the laser. 1. The laser power needs to be paid attention to, even if the power is small The laser is also available.