The invention provides an LED polarized lens with uniform brightness. The LED polarized lens is arranged above a PCB circuit board, the LED polarized lens is provided with a lens inner cavity top surface, a first lens inner cavity side, a second lens inner cavity side, a first lens reflecting surface, a second lens reflecting surface, a first lens
exit surface and a second lens
exit surface, wherein the cross-sectional contour of a lens main body formed by the first lens
exit surface, the first lens reflecting surface, the second lens reflecting surface and the second lens exit surface is M-shaped, and the lens main body is composed of a first lens
assembly and a second lens
assembly which are symmetrical at left and right. According to the invention, the LED polarized lens can project thelight emitted from the LED
light source to the area of 70-80 degrees, and the width and height of a receiving area are the relationship of about five times, a small angle of focusing is realized, theratio of a maximum
light intensity to lumen reaches 2Cd / Lm, the
light spot effect in an LED light receiving area has a uniform transition, the
illuminance uniformity reaches 1:1 .1, so that the
illuminance uniformity of an
LED lamp is improved, and a lamp power is reduced under the same
illuminance.