The benefits of lens coating

Coating of the lens using the optical film and vacuum technology. Has a layer of material on the surface of the lens to improve the ability of light reflection from the lens and to increase or reduce the role of light through.Two coated lenses in markets: the reflective filter. The lens surface of gold, silver, zinc sulfide. Coating that reflects the protective effect of visible light, infrared rays and gamma rays from the eye. titanium dioxide anti-reflective upper part of the lens. Lens coating of magnesium fluoride, silicon, aluminum fluoride, etc. reduce the specular reflection, and improvement of the transmittance of the lens. Explore the United States that allows photographers to take pictures.The advantages of coated glass: neutral, depending on the material to reduce the specular reflection of light transmission. The surface of the lens to be damaged by UV, IR vision to prevent X-ray Vision is not only hard coating wear glasses, the vision of the screen before the employees are protected. Glass coating can reduce reflection of light on the surface of the lens to solve the problem of wear glasses under a light camera, an increase of beauty. The lenses can withstand a variety of adverse environmental conditions, high temperatures, rain, salt water, not fall. Wipe the lens, lens cleaner and grease, available neutral rinse and should not be a marker.More common in China, broadband green stripe, green stripe decoration, cinema red and blue, the purple membrane and the yellow tape: banda large green stripes: in some places, like a banda AR-Green is currently the best coating China has been obtained in other groups observed angles are different (this is the power of multi-layer coating), show an image in high resolution and color reproduction is good. zinc oxide is generally used only by bureaucratic red dot, this is more general, there are options. The blue tape is the use of China, the process most widely used for the coating, compared to film for bandwidth appears slightly yellow-green to dark blue and the number of layers and a metal film of three layers, some of the five levels, one level. Decorative green and green banda antireflection film is very similar, but the optical performance is nothing to brag about, it is easier to locate the green light range decorative reflective films range of green belt.In general, a good lens and the coating is easy. The complete transmission is 85-90%. If the internal use of the lens coating of the lenses, then the rate of transmission of total light has reached about 93% (rare in China). With the stroke limit banda large green lens is more or less and a little 'virtual China. To obtain a greater percentage of light transmission, the inner layer of the lens can be used to improve the optical performance and the transmission speed total may be up to 93-95%.  Source:http://www.mhcocm.com