Patent ID: 7990619
Filing Date: 2011-08-02
Classification: B29C,B29D,B29K,G02B,Y10T

Abstract:
1. A method for making a lens, the method comprising: providing a first light pervious substrate and a second light pervious substrate, the first light pervious substrate comprising a first surface and an opposite second surface, the second light pervious substrate comprising a third surface and a fourth surface; forming a first optically active part on the first surface of the first light pervious substrate, wherein the step of forming the first optically active part comprises: forming a second optically active part on the third surface of the second light pervious substrate, wherein the step of forming the second optically active part comprises: attaching the fourth surface of the second light pervious substrate to the second surface of the first light pervious substrate in such a manner that the first and the second optically active parts have a common optical axis.