Patent ID: 6818157
Filing Date: 2004-11-16
Classification: B29C,B29D,B29L

Abstract:
A light guiding plate manufacturing apparatus, which manufactures an light guiding plate, comprising the steps of:fixing a stamper, having a dot pattern formed on its surface, by a rotating cylindrical roller made of a material having a higher thermal expansion coefficient than a material forming of said stamper; fixing a resin substrate by substrate fixing means, which reciprocates at a lower side of said cylindrical roller in accordance with the rotation of said cylindrical roller; heating said resin substrate to temperature in the range of (TÂ±20)Â° C. and said stamper to temperature in the range of from no less than (TÂ±10)Â° C. to no greater than (T+30)Â° C. when a temperature of deflection under load of said resin substrate is set to T; and pressing said stamper with a constant pressure, which is fixed to said cylindrical roller, onto a surface of said resin substrate, which is fixed to said substrate fixing means.