Dexerials Corporation

Sony Corporation

Yutaka Muramoto

Masanao Kikuchi

Shunichi Kajiya

Takaaki Otowa

Hideki Terashima

Yasuhiro Takahashi

Kazuya Hayashibe

Yasuyuki Kudo

Sohmei Endoh

Shogo Shinkai

Eiji Ohta

Hiroshi Tazawa

Yu Nomura

Shigehiro Yamakita

Satoshi Sekino

Taku Ishimori

Tokuhiro Morioka

Tatsuya Harima

Sachie Shoji

Takashi Mabuchi

Noriaki Doi

Provided are a cylindrical base, a master and a method for manufacturing a master enabling a uniform transfer of a fine pattern. A cylindrical base of a quartz glass having an internal strain in terms of birefringence of less than 70 nm/cm is used. A resist layer is deposited to an outer circumference surface of this cylindrical base, a latent image is formed on the resist layer, the latent image formed on the resist layer is developed and the pattern of the developed resist layer is used as a mask for etching to form a structure including concaves or convexes arranged in a plurality of rows on the outer circumference surface of the cylindrical base.

Cylindrical base, master and master manufacturing method

There are provided a master and a method for manufacturing the master, the master having, on its outer peripheral surface, a concave-convex structure in which concavities or convexities are continuously arranged with high precision. The master includes: a substrate with a hollow cylindrical shape or cylindrical shape; and a concave-convex structure on an outer peripheral surface of the substrate. The concave-convex structure has concavities or convexities continuously arranged at a predetermined pitch in a circumferential direction of the substrate. The concavities or convexities are arranged with a predetermined phase difference between circumferential rows adjacent in an axial direction of the substrate.

Master, transfer copy, and method for manufacturing master

There is provided an optical body with improved antireflection capability, a display device, and a method for manufacturing an optical body, the optical body including: a first concave-convex structure formed on a surface of a base material; and a second concave-convex structure superimposed on the first concave-convex structure. An average concave-convex period of the first concave-convex structure is larger than a wavelength in a visible light region, an average concave-convex period of the second concave-convex structure is less than or equal to the wavelength in the visible light region, and projecting parts of the second concave-convex structure extend in a direction normal to a flat plane of the base material.

Optical body, display device, and method for manufacturing optical body

There is provided an embossed film in which the frequency of loss of concavities is smaller, the embossed film including: a film main body; and a plurality of concavities formed on a surface of the film main body. A diameter of an opening surface of the concavity is larger than a visible light wavelength, an arrangement pattern of the concavities has periodicity along a length direction of the film main body, and the difference between the rate of loss of concavities in one end portion of the film main body and the rate of loss of concavities in the other end portion of the film main body is 10 ppm or less.

Embossed film, sheet film, transfer copy, and method for producing embossed film

There is provided a method for manufacturing a master on which an arbitrary pattern is formed, the method including: forming a thin-film layer on an outer circumferential surface of a base material in a round cylindrical or round columnar shape; generating a control signal corresponding to an object on the basis of an input image in which the object is depicted; irradiating the thin-film layer with laser light on the basis of the control signal and thereby forming a thin-film pattern corresponding to the object on the thin-film layer; and forming a pattern corresponding to the object on the outer circumferential surface of the base material using, as a mask, the thin-film layer on which the thin-film pattern is formed.

Method for manufacturing master, transfer copy, and replica master

There is provided a filler-filled film, a sheet film, a stacked film, a bonded body, and a method for producing a filler-filled film, the filler-filled film including: a film main body; a plurality of concavities formed on a surface of the film main body; and a filler put in each of the concavities. A diameter of an opening surface of the concavity is at least larger than a visible light wavelength, an arrangement pattern of the concavities has periodicity along a length direction of the film main body, and the difference between the rate of filling of the fillers in one end portion of the film main body and the rate of filling of the fillers in another portion of the film main body is less than 0.5%.

Filler-filled film, sheet film, stacked film, bonded body, and method for producing filler-filled film

An optical system includes an optical element and an imaging device. The optical element has a surface on which a plurality of sub-wavelength structure bodies are formed. The imaging device has an imaging region which senses light via the optical element. The surface of the optical element has one or two or more sections that scatter incident light and generate scattered light. A sum total of components of the scattered light reaching the imaging region is smaller than a sum total of components thereof reaching regions other than the imaging region.

Optical element, optical system, imaging apparatus, optical instrument, and stamper

Transparent conductive element includes an optical layer provided with a wave surface that has an average wavelength smaller than or equal to a wavelength of visible light and a transparent conductive layer formed on the wave surface so as to follow the shape of the wave surface. When the average wavelength of the wave surface is &#x3bb;m and an average amplitude of vibration of the wave surface is Am, the ratio (Am/&#x3bb;m) is 0.2 or more and 1.0 or less; an average angle of sloped surfaces of the wave surface is in the range of 30&#xb0; or more and 60&#xb0; or less; and when a thickness of the transparent conductive layer at a highest position of the wave surface is D1 and a thickness of the transparent conductive layer at a lowest position of the wave surface is D3, a ratio D3/D1 is in the range of 0.8 or less.

Transparent conductive element, input device, and display device

An illuminating apparatus is provided and includes a plurality of point light sources in one plane and a first optical sheet and a second optical sheet overlapped in a region facing the plurality of point light sources. The plurality of point light sources are arranged in a first direction and also arranged in a second direction orthogonal to the first direction. The first optical sheet has a plurality of first three-dimensional structures extending in a direction parallel to the first direction and arranged in a direction parallel to the second direction. The second optical sheet has a plurality of second three-dimensional structures extending in a direction parallel to the second direction and arranged in a direction parallel to the first direction. Each of the second three-dimensional structures has a shape which generates a larger amount of return light from normal incident light as compared with the first three-dimensional structures.

Growing community of inventors

Miyagi, Japan

Yutaka Muramoto