Polarized sunglasses have what function?

Polarized sunglasses has the function of the polarization light will all harmful rays to stop outside the lens without affecting the light through, have the effect of protection for your eyes. Polarized sunglasses not only have the function of uv has road reflect light, the surface scale light, anti glare, etc. Production principle of polarized sun: polarized sunglasses can block glare of uncomfortable, at the same time can protect your eyes from uv rays. All of this is due to metal powder filters, they can when light hits on the 'choice'. Of polarized sunglasses can selectively absorb the sun's rays of a part of the band, because it is through the thin metal powder ( Iron, copper, nickel, etc. ) 。 Polarized sunglasses offers another eye protection mechanism. The asphalt reflected light is a special polarized light. The reflected light and the light from the sun directly or any artificial light source the light is different from the problem lies in the order. Polarized light is made up of all in one direction vibration wave form, and the light of the general is by not directional vibration wave into the open. It's like a group of people walk around with a group of no order with neat pace of marching soldiers, to the stark. Generally speaking, the reflected light is the light of an orderly. Polarized sunglasses are very suitable for driving, fishing, travel, etc. The need of daily life and work. To light the various surfaces will happen more or less to reflect such as: look at the distance of the asphalt while driving like a mirror, lying on the ground when the fishing lake surface reflective float, not all of these are due to the irregular reflection of stray light glare. Polarized sunglasses than ordinary sunglasses the lens in the middle of the add a layer of polarizing film, through the guidance of the polarization in addition to the direction of the light into the eye of stray light, have the effect of anti glare. While ordinary sunglasses without this feature.
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