Patent ID: 6261402
Filing Date: 2001-07-17
Classification: B29C,B29D,Y10T

Abstract:
A planar type lens manufacturing method comprising:a step of forming a transparent sticky layer on a transparent base;a step of supplying plural transparent fine spheres onto said transparent sticky layer;a step of burying said plural transparent fine spheres in said transparent sticky layer in a depth which is substantially equal to the half of the diameter thereof;a step of supplying colored material so that said colored material is filled in at least the gaps between said plural transparent fine spheres; anda step of removing said colored material located at at least light-transmissible positions of the opposite side to said transparent base, wherein carbon toner is used as said colored material wherein said carbon toner has a particle diameter of 0.05 to 15 .mu.m wherein in said step of supplying said colored material, after carbon toner having a particle size in a range of about 2 to 15 .mu.m is supplied, carbon toner having a particle size in the ranges of 0.2 to 2 .mu.m or 0.05 to 0.2 .mu.m is supplied between the carbon toner having the 2 to 15 .mu.m particle size.