Patent ID: 8879174
Filing Date: 2014-11-04
Classification: B29D,G02B

Abstract:
1. A method for manufacturing a lens assembly, the method comprising the steps of: dividing and processing a surface of a first lens substrate to form a plurality of first lens units each having a first curvature; dividing and processing a surface of a second lens substrate to form a plurality of second lens units each having a second curvature different from the first curvature; interposing a stop substrate between the first lens substrate and the second lens substrate, wherein the stop substrate fixes the first and second lens substrates and adjusts an amount of light; bonding the first lens substrate, the second lens substrate, and the stop substrate to one another as one integrated body; and dicing the integrated body into a third lens unit, thereby producing a plurality of lens assemblies; wherein the first lens substrate and the second lens substrate each has a front surface and each has a rear surface; wherein the front surface of the first lens substrate has a convex part and the rear surface of the first lens substrate has a concave part; wherein the front surface of the second lens substrate has a concave part; wherein the rear surface of the second lens substrate has a convex part; wherein each of the first lens units includes a first curvature part having a first curvature and a first peripheral part formed in a vicinity of the first curvature part, and each of the second lens units includes a second curvature part having second curvature and a second peripheral part formed in a vicinity of the second curvature part; and wherein, in the bonding step, the first curvature part and the second curvature part are bonded to be symmetrical with respect to the stop substrate, and the first peripheral part and the second peripheral part are bonded to be symmetrical with respect to the stop substrate.