JP2009294600A5 - - Google Patents

Claims (11)

A phase separation comprising: a matrix made of a photopolymerizable composition; and a plurality of columnar structures having a circular or polygonal cross-section made of a photopolymerizable composition and having a refractive index different from that of the matrix disposed in the matrix A molded body having a structure,
At least one side surface has irregularities with a height of 10 nm or more and less than 1 μm synchronized with the phase separation structure;
A molded product characterized by that. Each of the plurality of columnar structures is oriented in substantially the same direction and is arranged in a regular lattice shape in a plane perpendicular to the orientation direction.
The molded product according to claim 1. The plurality of columnar structures have substantially the same cross-sectional shape perpendicular to the alignment direction.
The molded product according to claim 1 or 2. The columnar structure has an aspect ratio of 10 or more.
The molded body according to any one of claims 1 to 3. The photopolymerizable composition is an acrylic photopolymerizable composition,
The molded body according to any one of claims 1 to 4.   An optical low-pass filter comprising the molded body according to claim 1. A phase separation structure comprising a matrix made of a photopolymerizable composition, and a plurality of columnar structures made of a photopolymerizable composition and having a refractive index different from that of the matrix disposed in the matrix, and at least one side A method for producing a molded article having irregularities synchronized with the phase separation structure on the surface,
A step photopolymerizable composition you place on a substrate containing a photocurable monomer or oligomer and a photopolymerization initiator,
Between the photopolymerizable composition and a light source, a step of placement in a state of forming a space between the photomask and an optical passband and light non passband and the upper surface of the photopolymerizable composition ,
The photopolymerizable composition is irradiated from the light source with parallel light having a full width at half maximum of 100 nm or less and a substantially constant light intensity distribution toward the photopolymerizable composition on the substrate through the photomask. A first light irradiation step of curing a portion irradiated with parallel light to an incompletely cured state,
The photomask is removed, and the photopolymerizable composition on the substrate is irradiated with parallel light having a full width at half maximum of 100 nm or less and a substantially constant light intensity distribution toward the photopolymerizable composition. A second light irradiation step for completing the curing,
The manufacturing method of the molded object characterized by this.   In the said 1st light irradiation process, the said photopolymerizable composition exists in inert gas atmosphere, The manufacturing method of the molded object of Claim 7 characterized by the above-mentioned. In the first light irradiation step and the second light irradiation step, the photopolymerizable composition on the substrate is irradiated with parallel light in an inert gas atmosphere.
The method for producing a molded article according to claim 7 or 8 . In the first light irradiation step, the part irradiated with parallel light in the photopolymerizable composition is cured to a curing degree of 10% or more and 80% or less.
The manufacturing method of the molded object as described in any one of Claims 7 thru | or 9 . In the photomask, a large number of the light passing areas are arranged in a regular lattice shape in the light non-passing area.
The manufacturing method of the molded object of any one of Claims 7 thru | or 10 .