Patent ID: 7743631
Filing Date: 2010-06-29
Classification: C03B,G02B

Abstract:
1. A method of manufacturing an optical lens, comprising: providing an optical lens base material which is formed of light transmitting material and has a columnar shape, the optical lens base material having a first side face and a second side face disposed opposite the first side face, each of the first side face and the second side face having a plurality of curved surface parts formed parallel to the columnar axis direction and aligned so as to be in mutual contact, and each of the first side face and the second side face are formed as convex curved surfaces as a whole, drawing the optical lens base material in the direction of the columnar axis; recessing the first side face and the second side face inward; and cutting the optical lens base material to form an optical lens, the plurality of curved surface parts of the optical lens base material being optical action components that act on incident light or emitted light.