Patent ID: 7419770
Filing Date: 2008-09-02
Classification: B29C,B29D,B29L,G02B,G02F,G03F,Y10T

Abstract:
1. A manufacturing method of an optical device provided with a resin thin film having a micro-asperity pattern comprising: a first step of coating a substrate with a resin thin film made of a photosensitive resin; a second step of forming a material-property-changed part at a part of the resin thin film by photolithography; a third step of controlling a temperature of the resin thin film to be a temperature that is lower than a photosensitivity extinction temperature or a hardening reaction starting temperature of the resin thin film; a fourth step of pressing a die having a micro-asperity pattern against the surface of the resin thin film to form a first micro-asperity pattern in a state in which the resin thin film has been softened or melted; and a fifth step of forming a second micro-asperity pattern at a part of the resin thin film by removing the material-property-changed part.