초록 ▼

A process for producing a polymer or a crosslinked article having a region in which the polymerization rate or crosslinking rate is varied is disclosed, comprising irradiating a photopolymerizable substance or photo-crosslinkable substance with laser light having an uneven distribution of intensity.

A process for producing a polymer or a crosslinked article having a region in which the polymerization rate or crosslinking rate is varied is disclosed, comprising irradiating a photopolymerizable substance or photo-crosslinkable substance with laser light having an uneven distribution of intensity. The process is suitable for mass production of polymerization rate- or crosslinking rate-distributed articles. An arbitrary distribution pattern can be designed and formed under good control, and distribution regions having a fine shape can be formed with excellent precision. A plurality of distribution regions having a regular shape can be formed at a high density with high precision.

대표청구항 ▼

[ What is claimed is:] [1.] A process for producing a lens or a lens array comprising irradiating laser light having a zero-order Gaussian distribution of intensity through an optical mask having a plurality of polygonal openings on a plurality of sites of a matrix base, said matrix base comprising

[ What is claimed is:] [1.] A process for producing a lens or a lens array comprising irradiating laser light having a zero-order Gaussian distribution of intensity through an optical mask having a plurality of polygonal openings on a plurality of sites of a matrix base, said matrix base comprising a transparent polymer matrix and a polymerizable photo-reactive substance comprised of a polymerizable monomer and a photo-reactive initiator, to polymerize the monomer and form in the matrix base at least one region in which polymerized monomer is present in a polymerization rate distribution substantially corresponding to a quadratic distribution curve.