Brewster polarizer

The inclined blades of Brewster polarizers are used to eliminate partially reflected or polarized light. These slats are usually sheets of glass, then inclined at about 56 degrees. It consists of a stack of so-called Brewster blades, which are inclined at Brewster angles with respect to the optics using them. In a laser in which the amplification medium is separated from the cavity mirror, the diopter of the defined medium is tilted at Brewster angle to eliminate the loss caused by partial reflection. By rotating the polarizer around the slider, Brewster polarizer can find the polarization direction of the polarizer and observe the minimum reflection. At this minimum value, the partial reflection of Brewster angle is cancelled, and the polarization direction of the polarizer forms Brewster angle with the plate. Polarized glass with vertical polarization can restrain natural light from reflecting at Brewster angle from the horizontal plane, and attenuate the reflection close to this angle. In imaging, many cameras are equipped with Brewster polarizers, for example, to adjust the contrast of images. Brewster polarizer is used to form Brewster angle between the polarization direction of light arriving at the equipment and the diopter formed by the reflecting surface, which can eliminate partial reflection that interferes with photography and see things that cannot be seen by reflection