Sports (type D)

       Anti radiation protective glasses are used to protect the eyes from excessive ultraviolet radiation. The lens is made of special glass which can reflect or absorb radiation, but can pass through certain visible light. The lenses are coated with bright chromium, nickel, mercury or silver film, which can reflect radiation; the blue lenses absorb infrared rays, the yellow green lenses absorb both ultraviolet and infrared rays, and the colorless lead lenses absorb X-rays and gamma rays. For example, common welding glasses have relatively low requirements on the transmittance of lenses, so the lens color is mainly ink; laser protective glasses, as the name suggests, can prevent laser radiation on glasses, so they have high requirements on lenses, such as the selection of light source, attenuation rate, light reaction time, optical density, light transmission effect, etc. different nano (nm) lasers need to be used Lenses of different wavelengths.