What are mirrored sunglasses?

What are mirrored sunglasses?

In the previous article, we discussed “What's so special about mirrored sunglasses?”. In this article, let’s talk about “What are mirrored sunglasses?”.

What are mirrored sunglasses?

Mirrored sunglasses are sunglasses that have a reflective optical coating on the outside of the lens (called a mirror coating or flash coating), which makes the lens look like a small mirror. These lenses usually give the wearer brown or gray vision. The mirror coating further reduces the light passing through the colored lens by 10-60%, making it pretty suitable for sand, water, snow, and higher altitude conditions. Mirrored sunglasses are one-way mirrors.

What is mirror coating?

The simplest mirror coating is a single layer of deposited suitable metal. However, the coating scratches easily and degrades, especially in corrosive environments such as saltwater. The reflective coating on the mirrored glass is very fragile and can be scratched easily. More modern reflective coatings usually have several alternating layers of a specific thickness, made of a dielectric material, sometimes metal. The metal layer can be made of titanium, nickel, or chromium. The dielectric layer includes a suitable oxide, like chromium oxide, silicon dioxide, or titanium dioxide. Its thickness determines the reflective properties of the resulting dielectric mirror.

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The history of mirrored sunglasses

The term "sunglasses" came into use around the 20th century. Before that, sunglasses were used for more extreme weather conditions, like polar explorers or people visiting equatorial colonies. The reflective material Polaroid was designed by Edwin H. Land. Well known in the field of photography and polarized light, these reflective sunglasses work by using reflective materials to reflect light. This will keep the sun's rays away from the sunglasses and the wearer's eyes. The goggles did not provide much protection from the sun for the pilots, thus undermining their performance. Mirrored sunglasses were very popular in the 1980s, but then people thought they looked old and out of date, so they sealed them off. Mirrored sunglasses are making a comeback in the last two years, as the vintage trend has become more and more popular. Mirrored sunglasses can be seen at a glance because of their reflective effect.(https://www.koalaeye.com/collections/polarized-sunglasses)

The fashion trend for mirrored sunglasses

Mirrored sunglasses themselves is a key item. Gold or silver mirror is usually the most acceptable style, and they are very easy to match with a variety of clothes. The Blue mirror is very suitable to match the white clothing, it has a holiday breath. A bit bolder style can choose the mirror of same bright-colored color with clothes to do echo.

Thank you for your time in reading our passage “What are mirrored sunglasses?”. For more information about sunglasses and eyeglasses, please continue to follow koalaeye.com. Also, it is welcome to share and forward to Facebook and Twitter.


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