Why are they so special? The first polarized sunglasses were developed by Edwin Land in 1936. As explained by Ricardo Bernárdez Vilaboa, from the Department of Optics II of the Complutense University of Madrid “when the unpolarized and random light of the sun is reflected on a flat surface, the Light waves become polarized (oriented in a certain direction) rather than random. Ordinary non-polarized light is a grouping of electromagnetic waves that can travel in all directions, polarized light waves are limited to one plane. ” This results in annoying glare that can even be dangerous at certain times, such as during driving. As Bernárdez points out, “polarized sunglasses filter this glare with a polarized light filtering film. They neutralize uncomfortable reflections that come from surfaces such as wet roads, water or snow; In this way guarantee a great comfort and a vision rich in contrasts “
This post was last modified on July 7, 2017 10:25 am
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