Patent ID: 8354047
Filing Date: 2013-01-15
Classification: B82Y,G02B,G03F

Abstract:
1. A method for press molding a lens array, the method comprising: providing a mold core having a first surface, the first surface having a first alignment mark formed thereon using a lithography method, and a lens molding surface array and a second alignment mark formed on the first surface using an ultra-precision machining method, a distance between the first alignment mark and a center of the first surface being equal to a distance between the second alignment mark and a center of the lens molding surface array; detecting a spacing between the first alignment mark and the second alignment mark; providing a substrate having a second surface, the second surface having a third alignment mark formed thereon using the lithography method, the third alignment mark spaced from a center of the substrate a same distance as the distance between the first alignment mark and the center of the first surface; aligning the substrate with the mold core by aligning the third alignment mark with the first alignment mark; further aligning the substrate with the mold core by offsetting the substrate the spacing between the first alignment mark and the second alignment mark to align the center of the substrate with the center of the lens molding surface array; and applying a mold material on the substrate, and press molding the molding material using the mold core.