Patent ID: 7929224

Claim:
A method for manufacturing an optical element, comprising: providing a mold, wherein the mold has a lower molding face and an upper molding face, and a radius of curvature of the lower molding face is smaller than a radius of curvature of the upper molding face; providing a holder, wherein the holder has an outer surface, an inner surface, and at least one groove, the groove surrounds the inner surface, and the groove has a guiding face and a carrying face, the guiding face is obliquely disposed in a direction from the lower molding face to the upper molding face and from the inner surface of the holder to the outer surface, and the carrying face is perpendicular to the inner surface, and forms an oblique angle with the guiding face; placing an optical material in the holder, wherein a placing position of the optical material corresponds to the groove; and softening the optical material, and pressing the optical material by the lower molding face and the upper molding face of the mold, such that the optical material is adhered to the inner surface of the holder, is guided by the guiding face to be embedded in the groove, and is stopped on the carrying face, meanwhile, the optical material forms an optical lens having a first mirror and a second mirror.