Polarizing filters in professional photography are very important because they reduce the amount of glare, minimize reflections, as well as improve the color of the finalsnapshot, cutting off certain wavelengths of light before they reach the optical sensor inside the camera.
As a rule, such filters are wound on top of lenses in the form of additional accessories. There have already been attempts to place them directly inside the camera, but this technology has not yet gained massification. The Japanese company Sony announced that for the first time in history, it has managed to embed a polarizing filter directly into the optical sensor.
CMOS sensors developed by Sony, today are used not only in her chambers, but also in the many smart phones and tablets from the world famous producers. Sony engineers have placed on top of a metal grid of a sublime fotosensora, performs the role of a polarizing filter. To achieve such a result, Sony have positioned grid rods under four different angles: 0, 45, 90 and 135 degrees. The user can choose what polarization it activate at a specific point, blocking solely a specific wavelength of light.
Advantages of polarizing filters are particularly well illustrated by the picture, which is located just above. You can see that if the filter do not use picture glass cube captured numerous reflections in his sides. While on the right the picture with no reflections evaluator enabled.
Sony also managed to defeat the so-called effect of “ghosting reduction“, when a polarizing filter Additionally reflect like a mirror image. To do this, had to add a special layer, eliminating the possibility of occurrence of such inconveniences. Using new technology, Sony will be able to produce more compact and more efficient sensors for cameras and Smartphones. And users will be able to receive as a result of maximum quality images and videos.