Laser is a light beam with high brightness, power and energy. A strong laser light may cause burn to our skin. Direct shining or reflection from a bright (mirror) surface of a laser light into eyes will inflict a permanent harm and even cause blindness to our eyes. Therefore, to avoid harm, we must avoid exposing any part of our body to the travel route of laser light. Special attention should be paid to protection of eyes and skin.
Different types of laser will cause different harms to human body. In laser processing, usually CO2 and YAG laser devices are used most often. YAG laser may harm the retina. Since the wavelength of YAG laser is extremely high in transmittance to eyes, its harm is more serious. The harm of CO2 laser mainly causes burn to our cornea. Exposure to the two kinds of laser may lead to cataract and burn the skin.Therefore, when adjusting the laser, it is usually necessary to take corresponding protective measures for the laser source, the operator and the working environment.
The specific measures are as follows:
1,Workplaces with lasers should be posted with eye-catching warning signs and hazard signs.
2, staff should first receive training in laser protection.
3,When the laser is not in use, a protective cover should be added at the output end. Try to close the light path to avoid exposure to the laser beam. In addition, the optical path should be kept above or below the height of the human eye, which is especially important for lasers outside the visible range.
Meanwhile, we should also pay attention to fire control. In the laser processing, auxiliary gas will often be used. Plus there are sparks in the processing, it is easy to make a fire. Therefore, flammable and explosive articles are strictly forbidden in the working area. Corresponding protection facilities shall also be in place.
