Protective glasses refer to "safety protective glasses", which are glasses with special functions, such as surgical glasses used in hospitals, welding glasses used in electric welding, laser protective glasses in laser engraving, etc.; protective goggles are a kind of filter The light mirror can change the intensity and spectrum of the transmitted light to prevent the radiation from damaging the eyes.
There are many types of protective glasses, including dust-proof glasses, shock-proof glasses, chemical-proof glasses, and light-radiation-proof glasses, etc. The glasses that are required for different occasions are also different. Due to the different protective effects, the characteristics of the lenses are also significantly different. Those who need to wear protective goggles should understand the harmful factors in their working environment, wear appropriate safety glasses, and do not wear them indiscriminately.
Goggles can absorb light of certain wavelengths and let other wavelengths of light pass through, so most goggles will present a certain color, and the color presented is the color of the transmitted light. When this kind of lens is manufactured, some metal oxides such as iron, diamond, chromium, strontium, nickel, manganese and some rare earth metal oxides such as neodymium are added to the general optical glass formulation to achieve the effect of absorbing light. .
