Lens assembly and processing method of lens assembly

A lens assembly comprising:

• a first lens provided with a first surface, a plurality of first positioning parts being provided on the first surface;
• a first polarizing film arranged on the first surface, wherein a plurality of first position holes is defined on the first polarizing film, the plurality of first position holes corresponds respectively with the plurality of first positioning parts, and the plurality of first position holes indicates a position of a first polarizing axis of the first polarizing film on the first lens;
• a second lens arranged on one side of the first polarizing film away from the first lens, wherein the second lens is provided with a second surface and a third surface, the second surface is closer to the first surface than the third surface, the third surface is further away from the first surface than the second surface, the second surface defines a plurality of first position grooves, the plurality of first position grooves cooperates respectively with the plurality of first positioning parts, and a plurality of second positioning parts is provided on the third surface;
• and
• a second polarizing film arranged on the third surface, wherein the second polarizing film defines a plurality of second position holes, the plurality of second position holes corresponds respectively with the plurality of second position parts, and the plurality of second position holes indicates a position of a second polarizing axis of the second polarizing film on the second lens, the plurality of first positioning parts is respectively received in the plurality of first position grooves, a first line is a projection of the first polarizing axis on the second lens, a second line is a projection of the second polarizing axis on the second lens, an angle between the first line and the second line is equal to a preset phase angle.