Patent ID: 6476971
Filing Date: 2002-11-05
Classification: B23C,B29C,B29D

Abstract:
Method of making a microlens array mold, comprising the steps of:(a) providing a movable substrate; (b) providing a forming element having a rotatable hardened cutting member for forming said microlens array mold in said movable substrate; (c) moving said movable substrate to a first milling position relative to said rotatable hardened cutting member; (d) milling said first milling position to form one of a plurality of microlens molds in said microlens array mold; (e) removing said rotatable hardened cutting member from said one of a plurality of microlens molds; (f) moving said movable substrate to expose another milling position, (g) moving said rotatable hardened cutting member into a milling relationship with said another milling position; (h) milling said another milling position of said movable substrate to form another one of said plurality of microlens molds in said microlens array mold; and, (i) repeating steps (f)-(h) at sequentially different milling positions on said movable substrate to form said microlens array mold having a plurality of microlens molds.