Patent ID: 6363603
Filing Date: 2002-04-02
Classification: B29C,B29D,B29L,G02B,Y10T

Abstract:
A method for manufacturing an erect image, unity magnification, resin lens array, comprising the steps of:providing two lens plates which are each manufactured by injection molding using a single mold, both lens plates having a convexly warped side and a concavely warped side with hemispherical lenslets formed on both said sides and having clipping portions provided at peripheral edges thereof, one lens plate having at least two engagement spigots for alignment use provided in a region other than that where the hemispherical lenslets are formed on one facing side thereof, and the other lens plate having at least two engagement sockets for alignment use provided in the region on one facing side thereof, and stacking the two lens plates which are convexly warped, such that the convexly warped sides thereof face each other or such that the convexly warped side of the lens plate whose warp is greater than that of the other lens plate faces the concavely warped side of the other lens plate, in order to correct a warp of each lens plate and assemble the erect image, unity magnification, resin lens array which is free of image distortion.