Sunglasses use a variety of technologies to eliminate the problems with light. different technologies currently use:Tinting Polarization Photochromic lenses Mirroring Scratch-resistant coating Anti reflective coating UV coating Tinting The color of the tint determines the parts of the light spectrum that are absorbed by the lenses. Manufacturers use different colors to produce specific results.
Gray tints are great all-purpose tints that reduce the overall amount of brightness with the least amount of color distortion. Gray lenses offer good protection against glare, making them a good choice for driving and general use. Yellow or gold tints reduce the amount of …show more content…
The yellow tint virtually eliminates the blue part of the spectrum and has the effect of making everything bright and sharp.That's why snow glasses are usually yellow. This tint really distorts color perception,which makes it inappropriate for any activity that relies on accurate color.
Amber and brownish tints are also good general purpose tints. They have the added benefit of reducing glare and have molecules that absorb higher frequency colors, such as blue, in addition to UV rays. There has been research that suggests that near-UV light frequencies such as blue and violet can contribute to the formation of cataracts over time. In fact, Sun Tiger has a patent on a particular version of these called Blue Blockers. These sunglasses also distort colors similar to yellow lenses, but increase contrast and clarity.
Green tints on lenses filter some blue light and reduce glare. Because green tints offer the highest contrast and greatest visual acuity of any tint, they are very popular.
Purple and rose tints offer the best contrast of objects against a green or blue background. They make a good choice for hunting or water …show more content…
Whether the light is transmitted, reflected, scattered or refracted, when its vibrations are aligned into one or more planes of direction, the light is said to be polarized. Polarization can occur either naturally or artificially. You can see an example of natural polarization every time you look at a lake. The reflected glare off the surface is the light that does not make it through the "filter" of the water, and is the reason why you often cannot see anything below the surface, even when the water is very