CREATIVE EVENTS

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Specular reflection
Reflective lens cheap sunglasses online as reflective like a mirror. The lens is coated with a very thin layer of reflective coatings - Since this coating is very sparse, so it is referred to as a half-silvered surface. The term "half-silvered" is derived from the reflection of the lens at the molecular very sparse, the number of the lenses only about a half of the number of molecules in the opaque reflective mirror. On the molecular level, the reflective molecules are uniformly dispersed in the surface of the lens, forming a layer of a uniform thin film, but the lens is only half of the area covered by the film. Half-silvered surface reflects about half to reach the surface of the light, and let the other half of the light directly through.
Typically, specular coating is the not a of gradient, and and gradually changing the from top to bottom the the Colour Depth of of the Coatings. This can strengthen the resilience of cheap sunglasses from the top of the light, while allowing more light injection from below and horizontal directions. This means that when you are driving, oakley sunglasses online block the sun's rays at the same time, but also allows you to see the dashboard. Occasionally, the coating is a dual gradient, the maximum depth of the color of the upper and lower portions of the lens, while the middle of the lens is clear.
Reflective rayban sunglasses key problem is that the coating can easily be scratched. Clearly, and now the cheap sunglasses manufacturer not yet be able to the success of the surface of in the reflective thin-film-plated on the the anti-scratch layer. Thus, the scratch-resistant layer is coated on the surface of the lens, and the reflection film is coated on the anti-scratch layer.
Anti-scratch protection layer
Glass is a natural anti-scratch, but the vast majority of plastics are not. To In In order to solve the this issue, Manufactured and Suppliers for R & D out of a a series of The method of, in the the a surface of of the lenses-plated a a layer of transparent yet sturdy thin film. Such films by diamond-like carbon film and polycrystalline diamond sintered body substances. In a thin layer, but very wear-resistant film formed on the surface of the lens by the ionization process.
Anti-reflective coating
Sunglasses, a common problem appears glare, back to the glare light to the back of the lens, and reflection to your eyes produce. The role of the anti-reflective protective coating is to reduce this reflex lens light. With anti-scratch protection layer, anti-reflective coating layer on the lenses is very strong, thin film. The anti-reflective coating material refractive index between air and glass. This allows the inner and outer surfaces of the intensity of the reflected light of the film is almost equal. When the film thickness is approximately a quarter wavelength of light, the light reflected from the surface of the film inside and outside, respectively offset by destructively interfere with each other, thereby to minimize glare you see. The antireflective coating is coated on the front surface of the refractive lenses and sunglasses, in order to eliminate reflected glare lens produce "hot spots".
UV coating
The some of the of the the most serious one of the of the the a pathogenicity of Cause on of the eye diseases and that that is: That That ultraviolet rays. Depending on the frequency and wavelength of ultraviolet rays is divided into two categories: ultraviolet A and ultraviolet B.
As a the a kind of natural the eyes of protection mechanisms, the people's cornea of ​​the eye can absorb all of the the UV-B and most of the UV A. However, there are still part of the UV-A reaches the lens of the eye. Absorb UV-A for a long time may cause cataracts, a small amount through the cornea to UV-A reaching the retina can lead to macular degeneration, macular degeneration cause of blindness for the elderly over the age of 65. Long-term exposure under the strong ultraviolet radiation can cause eye cancer or actinic keratitis, retinal burns. This often happens in the winter snow, sunny day outdoors, the surface of the snow reflect the sun's glare, which is often referred to as snow blindness.
Sunglasses have a good anti-UV coating, you can can eliminate the sun's ultraviolet radiation, you must ensure the your cheap sunglasses be able to in one hundred percent filtered two kinds of ultraviolet. Sunglasses should be indicated on the label of the sunglasses provide UV protection of the extent to which you need 100% protection.

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