polarizing sunglasses have a specific grating on them that is usually vertical llllllllllll lllllllllllllll
light can have various polarizations ... (this is the direction that the E and M fields go up and down) .... when something get's reflected ... say off of water It only is polarized horizontally ------- (that way if you like) ... since this light is polarized in the opposite direction as to the grating it cannot transmit ..... hence the glare off of objects is eliminated when you use polarizing lenses
the intensity transmitted is
I = I0 * cos^2(\theta) ... where theta is the angle between the lense grating and the light .... in this case it is 90 degrees
so cos(90) = 0 and no light is transmitted
for ordinary sunglasses .... the transmitted reduction is just uniform and effects like glare are not reduced any more or less than the direct sunlight
Polaroid sunglasses.
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You can find cheap Polaroid sunglasses online at the Solstice Sunglasses website. Once on the page, type "Polaroid Sunglasses" into the search field at the top of the page and press enter to bring up the items.
polaroid,and neostyle..
Edwin Land, later famed as the inventor of the Polaroid® camera, first invented polarizing films in the 1920's. By 1935, Land had signed a license agreement with American Optical to manufacture Polaroid® sunglasses. In 1942 General George S. Patton wore goggles made with Polaroid® lenses.
elvis wore polaroid "the silver aviators"and he wore the nautic by neostyle..
Elvis wore customized sunglasses made by Dennis Roberts. However, before he had customized sunglasses he wore; Ray-ban, Brownline, Bausch and Lomb, Teashades, and Polaroid.
they look like old polaroid sunglasses from the mid 70s they made lots of models with that kind of cut out in the temples.
4oo
1) Brand name 2) Material-Oakleys are light weight and strong. 3) Oakley takes time to align the lenses so they dont distort vision.
elvis' silver aviator sunglasses were made by polaroid. he also wore sunglasses made by neostyle called the nautic. they were customized for him by his eye doctor dennis roberts who ownd a optical store in L.A and las vegas called optique boutique and optique originals with that spelling....
Prescription sunglasses will make your vision better.