Dexerials Corporation

Mitsubishi Gas Chemical Company, Inc.

Sony Corporation

Takasago International Corporation

Mgc Filsheet Co., Ltd.

Mitsubishi Gas Chemical, Inc.

Dexerials Coporation

Mitsubishi Gas Chemical Company Co., Inc.

Nobuyuki Koike

Akio Takada

Koji Sasaki

Masatoshi Sasaki

Eiji Takahashi

Naoki Hanashima

Shojiro Kuwahara

Yoshio Aoki

Takashi Tamura

Kazuya Sato

Jitsuo Oishi

Hitoshi Sakamoto

Yukio Sakai

Yuzuru Takahashi

Koichi Kanno

Yasuhiro Hirai

Hiroki Oguro

Takatoshi Yamada

Takahumi Yoshimura

Kyoko Shibahara

Takaaki Higashiizumi

Kazuyuki Shibuya

Toshio Hidaka

Toshiaki Sugawara

Takeshi Hirokane

Katsumi Higuchi

Shigeshi Sakakibara

Tsuyoshi Ikeda

Sotaro Miyano

Masahiro Oowada

Toshinari Aoki

Tadashi Kawabata

Tetsutaro Hattori

Koshi Koide

Yasushi Miki

Nobuya Saegusa

Katsuhiro Shindo

Ken Taguwa

Kenta Sakurai

Shintaro Futakami

Kouichi Miyagi

Provided is a thermoplastic resin laminate suitable for optical applications of transparent substrate materials and protective materials. The thermoplastic resin laminate includes a first layer including an amorphous polyester resin (A) as the main component, and a second layer including a (meth)acrylic resin (B) as the main component on the first layer.

Thermoplastic resin laminate

Provided is a depolarizing plate having a superior degree of depolarization to conventional depolarizing plates. The depolarizing plate includes a light-transmitting substrate having a surface layer portion in which a fine pattern is provided that includes a plurality of curved lines randomly disposed at a pitch of no greater than a wavelength of light, and that exhibits structural birefringence.

Depolarizing plate

Provided are a polarizing plate having excellent optical characteristics, and a method for manufacturing the polarizing plate. The present invention is provided with: a translucent substrate through which light passes in a working band; a bundle structure layer constituted of a columnar sheaf comprising one or more material from among dielectrics, metals, and semiconductors, the bundle structure layer being formed on the translucent substrate; an absorption layer formed on the bundle structure layer; a dielectric layer formed on the absorption layer; and a reflection layer formed on the dielectric layer and arranged as a one-dimensional lattice at a pitch that is smaller than the wavelength of the light in the working band. Because the bundle structure layer increases light absorption and light scattering, the result is that reflectivity can be reduced and excellent optical characteristics obtained.

Polarizing plate having alternately stacked layers having different deposition directions

Depolarizing plate, optical device and liquid-crystal display device including same, and depolarizing plate production method

Provided are a block copolymer pattern formation method that enables formation, over a large area, of a block copolymer pattern with a perpendicularly oriented lamellar structure enabling nanoscale surface shape control, and a diffraction limited optical element produced using the block copolymer pattern formation method. The block copolymer pattern formation method is a method for forming a block copolymer pattern on a substrate and includes forming an oblique angle vapor deposited film on the substrate, applying a block copolymer onto the oblique angle vapor deposited film that has been formed, and subjecting the block copolymer that has been applied to perpendicularly oriented lamellar structure development post-treatment to form a pattern with a perpendicularly oriented lamellar structure.

Block copolymer pattern formation method and diffraction limited optical element

Polarizing plate having absorption layer comprising only tantalum and niobium

An object is to provide a phase difference compensation element capable of improving the contrast of a liquid crystal display device while solving the problems of a high cost, an increase in the lead time, an increase in the mounting space, and the durability. A phase difference compensation element includes: a phase difference imparting and reflection preventing layer; a first birefringence layer and a second birefringence layer in which an angle of a corner formed by a main axis of refractive index anisotropy and a surface of a transparent substrate is not 90 degrees; a third birefringence layer in which an angle of a corner formed by a main axis of refractive index anisotropy and the surface of the transparent substrate is 0 degrees, wherein, when segments acquired when the main axes of the first, second, and third birefringence layers are projected onto the transparent substrate are respectively denoted by a segment A, a segment B, and a segment C, relations of the following (1) and (2) are satisfied. (1) The angle of the corner formed by the segment A and the segment B is 45 degrees or more and 70 degrees or less. (2) The segment A and the segment C are approximately parallel with each other, or the segment B and the segment C are approximately parallel with each other.

Phase difference compensation element, liquid crystal display device, and projection-type image display device

A wavelength plate, wherein first birefringent layer and second birefringent layer are laminated such that in-plane directions of optical axes of first birefringent layer and second birefringent layer cross each other, wherein the wavelength plate satisfies formulae (1), (2), (3), and (4), and wherein at least one of first birefringent layer and second birefringent layer is obliquely-deposited birefringent layer formed by oblique deposition,&#x394;1&#xd7;1=&#x3bb;/2&#x2003;&#x2003;(1)1.7&#x2264;(&#x394;1&#xd7;1)/(&#x394;2&#xd7;2)&#x2264;2.7&#x2003;&#x2003;(2)5&#xb0;&#x2264;&#x3b8;1&#x2264;30&#xb0;&#x2003;&#x2003;(3)(2&#x3b8;1+35&#xb0;)&#x2264;&#x3b8;2&#x2264;(2&#x3b8;1+50&#xb0;)&#x2003;&#x2003;(4)

Wavelength plate and optical device

This invention provides a polarization conversion element that is highly resistant to the heat and light that result from increased brightness levels. In said polarization conversion element, inorganic half-wave plates provided selectively on the output surface of a polarizing beam-splitter array have obliquely deposited layers comprising a dielectric material and the side surfaces of said obliquely deposited layers are covered by protective films.

Polarization conversion element, polarization-conversion-element manufacturing method, light-source unit, and optical device

A wave plate capable of increasing a birefringence quantity and being made into a thin film, and a method of manufacturing the wave plate. The wave plate includes a substrate, whereon convex portions and concave portions are formed with a period less than or equal to the wavelength of light that is used therewith, columnar portions, wherein fine grains of a dielectric material are layered by oblique vapor deposition of a dielectric material from two directions, in a columnar shape on the convex portions in the vertical direction relative to the surface of the substrate, and interstices that are located on the concave portions and disposed between the columnar portions. Using birefringence from the fine grains of the dielectric material and birefringence from the concave/convex portions of the substrate allows increasing the birefringence quantity and making a thin film.

Wave plate having consistent birefringence properties across the visible spectrum and manufacturing method for same

This invention provides a polarization conversion element that is highly resistant to the heat and light that result from increased brightness levels. In said polarization conversion element, which is provided with a polarizing beam-splitter array in which polarizing beam splitters having polarization separation layers and reflecting prisms having reflective layers are bonded together in alternation, said polarizing beam splitters and reflecting prisms are bonded together by first adhesive layers each comprising a silicone adhesive.

Polarization conversion element and optical device

A phase difference element has a transparent substrate and a birefringent film with tantalum oxide and titanium oxide obliquely deposited on one surface of the transparent substrate. The birefringent film has a first photorefractive film and a second photorefractive film laminated to each other and having different oblique deposition directions. The ratio of titanium atoms to the total of titanium atoms and tantalum atoms in the birefringent film is 4.0 atomic % or higher to 30 atomic % or lower.

Phase difference element having birefringent film containing titanium oxide tantalum oxide

A phase difference compensating element that can effectively compensate polarization disturbance, and a projection-type image projecting device are provided. The phase difference compensating element includes: a birefringent layer formed with a film stack of obliquely-deposited films, each of the obliquely-deposited films having a thickness equal to or smaller than the used wavelength; and an Rd-AR film that is formed with a film stack of two or more kinds of dielectric films having different refractive indexes, and provides an arbitrary phase difference to a phase difference in obliquely-incident transmitted light in the birefringent layer. The phase difference Rd to be provided by the Rd-AR film satisfies 1&#x3c;Rd(&#x3bb;)/Rd(&#x3bb;')&#x3c;1.5 (&#x3bb;&#x3c;&#x3bb;&#x2032;), at an arbitrary wavelength &#x3bb; in the used wavelength band and within an incident light angle range of 0 to 25 degrees.

Phase difference compensating element and projection-type image projecting device

A synthetic resin laminate for use for transparent substrate materials and transparent protective materials is excellent in interlayer adhesiveness, form stability in high-temperature and high humidity environments, surface hardness and impact resistance. The synthetic resin laminate has a vinyl copolymer resin (A) layer and a polycarbonate resin (B) layer, wherein layer (A) is directly laminated on one surface of layer (B), and in which (A) contains a (meth)acrylate structural unit (a) represented by a specific formula and an aliphatic vinyl structural unit (b) represented by a specific formula, the total proportion of the (meth)acrylate structural unit (a) and the aliphatic vinyl structural unit (b) is from 90 to 100 mol % relative to the total of all the structural units in (A), and the proportion of the (meth)acrylate structural unit (a) is from 65 to 80 mol % relative to the total of all the structural units in (A).

Synthetic resin laminate

A small reactor, which contains an inorganic transparent substrate, which contains: a reaction channel configured to allow a chemical reaction to proceed therein; a supply channel, which is connected to one end of the reaction channel, and is configured to supply samples to be reacted in the reaction channel; and a discharge channel, which is connected to the other end of the reaction channel, and is configured to discharge a reaction product from the reaction channel, wherein the inorganic transparent substrate is in the shape of an arc-shaped curve.

Small reactor and reaction device

Growing community of inventors

Tokyo, Japan

Nobuyuki Koike