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Polarized Sunglasses Introduction by brownav brownav
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Polarized Sunglasses Introduction |
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Buddhism
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Polarizer is based on the principle of polarization of light manufacturing. We know that when the sun projected on the road or on the water, the direct irritation of the eyes, the eyes dazzle, fatigue, depending on the material can not be sustained. Especially when you are driving a car, outdoor recreational activities, not only affects our emotions work and play, and even affect our sense of the images dangerous; long withstand direct sunlight, can lead to rapid decline in vision, formation of myopia, astigmatism or cataracts. So that light can be put on the right track to the transmission axis of the eye visual images, making clear vision of nature. The principle like blinds, light is adjusted to the light and into the interior; the natural scenery looks so soft and without glare.
Polarization filter according to different mechanisms can be divided into circular Tiffany Outlet Sunglasses and the linear polarizer two types, the role of these two are the same. LPL is mainly used for old-fashioned manual focus camera. Appear late CPL adds a layer of film; this film has a special character. So that the light beam emitted in two perpendicular polarizations direction, which is called circularly polarized light. This design makes it more suitable for modern autofocus and auto-exposure camera. PL mirror is designed to filter the reflected light, increase image contrast. Its working principle is selectively filtered light from a certain direction. When looking at specific real shot viewfinder and rotate the front lens, the viewfinder when the darkest skies most obvious effect.
You may need to go to the darkest and brightest at any angle between. PL lens can be effectively reduced or eliminated metallic reflective surface, such reflected light is typically polarized, by adjusting the polarizer can be filtered out in this part of the reflector, thereby improving the quality of the subject and improve the picture clarity. For example, by using the polarizer, the reflective surface can be reduced, so that a clear picture of the fish in water. In shooting this scene, the light projection angle is the angle of your camera to match closely. You can use the time before the group slowly rotating filter lens to be adjusted, and strive to the scene of the reflective surface is minimized.
Polarizer can improve color saturation, improve contrast, it is because a Cheap Oakleys polarizer can absorb atmospheric mist or dust reflecting the stray light in all directions, so that the image capture more pure. In landscape photography, floral photography and shoot certain scenes reflecting relatively strong when useful. Using polarizer when shooting landscapes, painted on the clouds with excellent results. Refractive index of light blue sky with white clouds than being scattered light is far greater. Polarizer can also make use of the color green leaves more saturated and eliminate low angle city scene nebula fog.
The polarizer body and a lens attached to it rotate and two rear frame parts, the lens body is made of very fine crystal glass composition grating. Therefore, the polarizer to control and select the record parallel with it the number of reflected light. This is the polarizer to eliminate or weaken the truth reflective non-metallic surfaces. While also blocking when shooting with polarized light vibrating in the same direction with the part of the non-polarized light. To avoid screen color is too dull; add a file to more general exposure.
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