Patent ID: 6625864
Filing Date: 2003-09-30
Classification: B29C,B29D,B29L,G02B,Y10T

Abstract:
A method for manufacturing a lens plate which has hemispherical lenslets arrayed in a regular pattern on at least one sides thereof, comprising the steps of:applying a parting agent onto a surface of a master matrix of glass on which concaves are formed, followed by drying; dropping resin onto the surface of the master matrix on which concaves are formed; spreading the dropped resin by pressing a substrate having parallel, flat surfaces against the dropped resin; curing the spread resin; parting the master matrix; forming a conductive film on the cured resin; depositing metal on the conductive film to a predetermined thickness by plating; parting the resultant metal plating from the cured resin to thereby obtain a mold having concaves formed therein; attaching the mold having concaves formed therein and a flat-surface mold onto a die set such that the concaves and the flat surface face each other; establishing a predetermined gap between the facing molds and injecting resin into the gap; and opening the molds apart to remove the lens plate.