Avoid radiation cause injury or damage to the eyes, and the most effective and the most commonly used method is wearing Discount Oakleys Flak Jacket Sunglasses Cheap glasses. So-called safety glasses is a filter, you can change the light intensity and spectrum. This kind of glasses fall into two major categories, one for the absorption, and the reflective, the former is most often.
This kind of glasses can absorb some wavelengths of light, and the other wavelength light to pass through, so there is a certain color, the color of the light color. Such lenses at the time of manufacture, and in the general optical-quality glass in the recipe to join the metal oxides, such as iron, drill, chromium, strontium, nickel and manganese, as well as some rare earth metal oxide such as and neodymium, and so on. These metal oxides can make the glass of the light in a band of the electromagnetic wave as a selective absorption, such as the oxidation of the iron to absorb ultraviolet light. With this type of glass lenses can reduce some wavelengths through the lens is to reduce or prevent lenses cause injury. Different colors of the protective lens can absorb different colors of light, and the following are brief introduction of type safety glasses.
A, absorption, optical filters
1, sunglasses
visible through the rate of about 20 per cent of UV and IR absorption is better. The light green, neutral colors and are well-appointed, light tea, and many of the colors used to create shade and snow work safety Tiffany and Co Key Necklace Jewelry Outlet glasses. The light gray lens the color of the identified minimum impact; Light tea glasses to the sky looks dark and the green light through; Light Green Lens with red light through a reduction.
2, gas welding used eye glasses
This mirrors the coloring agents are mainly aluminum oxide, carbon dioxide, cobalt, yellow green, and be able to fully absorb 500 urn THE FOLLOWING wavelengths of light waves, visible through the rate below 1 per cent, there can be only a few infrared, This kind of glasses for welding operations when welding.
3, welding used eye glasses
Welding the UV, the eye-catching short exposure can cause cornea and membrane tissue damage (to 28 nm optical most serious). The strong infrared is very prone to eye lens opacities. Welding electrodes with goggles can be a very good blocking the infrared and UV light. Such lenses to optical-quality glass, aluminum oxide, and carbon dioxide cobalt and oxidized Chrome-Vanadium, coloring agents, and also to join a certain amount of carbon dioxide will increase to the ultraviolet absorption. The appearance is green or yellow and green. Can all block ultraviolet light, infrared light through Rate < 5%, visible through rate of about 0.1 per cent.
The front coated glasses, had been introduced, the lens surface coating on a greater refractive index than lens itself reflects high rates of material coating, it will increase the light reflection, reduce the light through the intensity, so that you can protect your eyes from bright light and harmful rays. Practical Work in life, and it is absorbed, and reflective work together, using the colored lenses, re-plated one storey reflector, the filter role more, such as welding, arc welding, plasma cutting, and operator with the Cheap Oakleys Frogskins Sunglasses Outlet glasses, you can use this method.