In regular Eye Glasses Terre Haute shop when buying a Inexpensive Polarized Sunglasses, there will be a test piece, there are some pictures, don’t wear a polarizer could not see, wear a see, actually the test piece is special, is to use the principle of Progressive Sunglasses Online light within polarizer can see pictures shot by the parallel light, so you see the hidden in the inside of the pictures, not the perspective, This can be used to check whether the polarizer is true. Partial light lens has a characteristic, it is lens extremely light, extremely thin, when resolving, can take other ordinary Cheap Designer Sunglasses Womens contrast weight simple sense. When people buy, put two polarizing lenses vertically stacked, lens will appear opaque phenomenon. The reason is that polaroid lenses are specially designed to allow only parallel light to pass through them, blocking most of the light when the lenses are stacked vertically. If it’s opaque, it’s a polarizer.
站点标题 