Do you have glasses ? Do
you wearing glasses ?we can always find those people in the school wearing
glasses ,because they are usually use the eyes to read , almost time their eyes
is tired . You also can see people walk by the sea wearing sexy swimming suit
,almost people like wearing a glass in summer .
If you are a fashion man
,you must have
uv protection goggles . Wearing this ,you can walk by the sea and go
out with much solar to stimulus your eyes ,it can protect you from the
intensive sum lights .
Do you know the reasons and the theory of the uv
protection goggles ?the sun light Send out is visible light, infrared,
ultraviolet: three. In order to ultraviolet radiation on human skin and eyes and so on ,which cause serious
harm ; the sun
unleashed by the light of IR (Infra-red) infrared ,visible light ; UV is divided into UVA,
UVB, UVC (310nm), blue the UVA, UVB, UVC is a harmful light, if long time
exposure will cause physical damage , so ,we
should pay more attention to protect ourselves .UVB is a
serious impact on the visual acuity (Tanning, Ray) is the burning of black
light, most eyes will absorb the UVB light so be sure to block out the light
source. Polarized sunglasses because has the function of light polarization, so
will all the harmful rays blocked off does not affect visual light through, can
truly achieve the protection of eyes.
Natural light
(unpolarized light), is actually composed of electromagnetic waves by vibration
in a particular direction, which is reflected or scattered light is usually
preferred in a particular direction, which is why the polarizing sunglasses can
filter out from the roof or sump reflection to the sun; natural light through
the polarizer after filtering, can let a direction of light through, that is
polarized lenses can first light polarization, allows only one direction of
light through the (visible light). Polarizing sunglasses is to use this feature
to block harmful rays. If you
are a open mind person ,you should equip one ,it can protect you well .
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