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Sunglass Structure Analysis
Dec 26, 2018

Dyed lens

The color of the sunglasses lens determines which parts of the spectrum the lens absorbs. Manufacturers use different colors to produce specific effects.


1. Gray is a very good general color, which minimizes color distortion while reducing brightness. Gray lenses provide glare protection, making them ideal for driving and general use.


2. Yellow or gold lenses reduce blue light while allowing more frequencies of light to pass through the lens. Because blue light can bounce and disperse a lot of light, it can produce a glare effect called blue enamel. In fact, yellow eliminates the blue portion of the spectrum, making all objects appear bright and clear. This is why the snow-proof sunglasses are generally yellow. These colors make the color perception a bit distorted, so sunglasses of this color are not suitable for activities that require accurate color recognition.


3, amber and brown are also very good general colors. They reduce glare effects, and in addition to UV, their unique molecules can absorb higher frequency colors, such as blue. Studies have shown that long-term exposure to near-ultraviolet light (such as blue and purple) is one of the causative factors of cataract. In fact, Sun Tiger has a special version called Blue Blockers that holds the patent. These sunglasses, like yellow lenses, cause color distortion but increase contrast and sharpness.