Patent ID: 6894840
Filing Date: 2005-05-17
Classification: G02B,G02F,Y10S

Abstract:
1. A method of producing a microlens array, comprising: a patterning step of forming a first optical resin layer having a first refractive index on a transparent substrate and forming a plurality of microlens planes arrayed in a two-dimensional pattern on the front surface of said first optical resin layer; a planarizing step of forming a planarized second optical resin layer; a joining step of providing a support layer on which a transparent protective film is previously formed; and a removing step of removing said support layer in such a manner that only said protective film remains on said second optical resin layer; wherein said planarizing step comprises a step of filling irregularities of the microlens planes with a resin having a second refractive index and planarizing the front surface, opposed to the microlens planes, of said resin, to form said planarized second optical resin layer; and said joining step comprises a step of joining said support layer to said planarized second optical resin layer.