Fujifilm Corporation

Nippon Piston Ring Co., Ltd.

Saitama University

Mitsui Minings & Melting Co., Ltd.

Hiroki Takahashi

Shunsuke Takeguchi

Yoshiki Ishikawa

Takasumi Kubo

Mototaka Kanaya

Takeshi Iida

Masahito Miki

Masafumi Morita

Shin Ishida

Susumu Takahashi

Yoshihiro Yoneda

Naohiko Abe

Koichi Miyake

Kazuhiko Kato

Koji Taniguchi

Ryoma Tsukuda

Kenichi Amitani

Hiromu Watanbe

Takuya Okada

Katsuhiko Ono

The phase difference compensation element that is used in combination with a liquid crystal cell provided with a liquid crystal layer in which an optical axis of liquid crystal molecules is inclined and that compensates for a phase difference of light generated in the liquid crystal layer, the phase difference compensation element includes a substrate and a phase difference film having at least one oblique vapor deposition layer on at least one substrate surface of the substrate, and the phase difference compensation element is disposed in an aspect in which an intersecting angle between a slow-axis direction of the phase difference film and a fast-axis direction of the liquid crystal layer, which is a direction perpendicular to a direction in which the inclined optical axis of the liquid crystal molecules is projected onto the substrate surface, is −25° to +25°.

Phase difference compensation element, liquid crystal display element, and liquid crystal projector

Provided is a phase difference plate including a substrate and a phase difference film which is an oblique film, in which, in a case where three principal refractive indices in a biaxial refractive index ellipsoid exhibiting the refractivity anisotropy are defined as nx, ny, and nz, Conditional Expression (1) is satisfied, and in a case where an incidence angle in a direction inclined to the X-axis side with respect to the normal line is regarded as positive, a phase difference ratio Re(30) ratio, which is a ratio of Re(+30) of a phase difference of the incidence light with an incidence angle of +30° to Re(−30) of a phase difference of the incidence light with an incidence angle of −30°, satisfies Conditional Expression (2).  (1)Re(30) ratio=Re(30)/Re(−30)=1.1 to 4.0  (2)

Phase difference plate, liquid crystal projector, and contrast adjustment method

An antireflection filmprovided on an optical substrateof an optical memberhas a reflectivity adjusting filmincluding a first layer, a second layerhaving a refractive index higher than a refractive index of the first layer, a third layerhaving a refractive index lower than a refractive index of the second layer, and a photocatalyst filmincluding one or more photocatalytically active layerscontaining titanium dioxide, in which a thickness of the reflectivity adjusting film measured from a surfaceis equal to or greater than 20 nm and less than 150 nm, the photocatalyst filmis provided between the reflectivity adjusting filmand the optical substrate, an interfacebetween the photocatalyst filmand the reflectivity adjusting film is disposed at position spaced apart from the surfaceby a distance equal to or shorter than 150 nm, and a total thickness of the photocatalytically active layersis equal to or greater than 350 nm and equal to or smaller than 1,000 nm.

Antireflection film and optical member

A hydrophilic multilayer film is provided on a substrate, the hydrophilic multilayer film having a multilayer film layer in which at least two kinds of layers having different refractive indices are laminated in order from the substrate side such that at least one or more of each kind of layer are laminated; and a hydrophilic thin film layer provided on the surface of the multilayer film layer. The multilayer film layer has one or more photocatalyst layers, and one layer of the photocatalyst layers is provided adjacently to the hydrophilic thin film layer. The hydrophilic thin film layer has a columnar structure having gaps extending between the top surface of the hydrophilic multilayer film and the face adjacent to the photocatalyst layer, and one or more of the photocatalyst layers included in the multilayer film layer has an oblique columnar structure including gaps oblique to the thickness direction.

Hydrophilic multilayer film and method for producing same, and imaging system

A titanium alloy includes 15 to 27 atomic % (at %) of tantalum (Ta) and 0 to 8 at % of tin (Sn), the balance being titanium (Ti) and unavoidable impurities, when the entire 5 amount of the titanium alloy is taken as 100 at %. Therefore, the titanium alloy provided has characteristics suitable for medical device materials, biocompatible materials, etc.

Titanium alloy

Disclosed is a tin oxide containing antimony and at least one element A selected from the group consisting of tantalum, tungsten, niobium, and bismuth. The antimony and the at least one element A selected from the group consisting of tantalum, tungsten, niobium, and bismuth are preferably dissolved in a solid state in tin oxide. The ratio of the number of moles of the element A to the number of moles of antimony, i.e., [(the number of moles of the element A/the number of moles of antimony)], is preferably 0.1 to 10.

Tin oxide, electrode catalyst for fuel cells, membrane electrode assembly, and solid polymer fuel cell

An antireflection film substrate that is provided on a surface of a substrate includes a surface layer having an alumina hydrate as a main component. The surface layer has an uneven structure in which a volume proportion of the alumina hydrate per unit volume decreases in a direction from the substrate side to a surface side, and a period of apexes distributed on the uneven structure on the surface side is configured to be equal to or less than a wavelength of light of which reflection is to be suppressed.

Antireflection film and method of producing the same

The invention provides an optical component, an infrared camera including the optical component, and a method for manufacturing the optical component. Antireflection materialsA are formed on a chalcogenide glassof which a compositional ratio of germanium and selenium is 60 percent or greater. With respect to the antireflection materialsA, an extinction coefficient to light of 10.5 &#x3bc;m is 0.01 or less, and a refractive index to light having a wavelength of 10.5 &#x3bc;m are greater than 1 and 2.6 or less. The antireflection materialsA are formed on a surface of a chalcogenide glassat an interval of 0.5 &#x3bc;m to 2.0 &#x3bc;m, so as to form an antireflection film. Adhesiveness of the antireflection filmis higher than that In a case where the surface of the chalcogenide glassis evenly coated with the antireflection materialsA.

Optical component, infrared camera, and method for manufacturing optical component

An optical compensation plate comprises a substrate, a phase difference compensation layer, and an antireflection layer. The substrate is for example a glass substrate. The phase difference compensation layer is formed by oblique vapor deposition of an inorganic material on a surface of the substrate, and has a microstructure where columnar structures stand with inclination in relation to the surface of the substrate. The antireflection layer is provided on the upper side of the phase difference compensation layer, and has an uneven structure equally formed on one surface.

Optical compensation plate

Provided is an antireflection film having excellent abrasion resistance. In the antireflection film, a hydrogenated carbon film as a first layer is formed on a surface of an optical substrate. A MgFfilm as a second layer having a lower refractive index than the first layer is formed on the first layer. Likewise, a third layer formed of the hydrogenated carbon film, a fourth layer formed of the MgFfilm, and a fifth layer formed of the hydrogenated carbon film are formed. During the formation of the hydrogenated carbon film, a mixed gas of argon and hydrogen is supplied to a vacuum chamber such that some of C&#x2014;C bonds in the film are replaced with C&#x2014;H bonds. Due to the C&#x2014;H bonds, an antireflection film having excellent abrasion resistance and adhesiveness and having a low refractive index can be obtained.

Antireflection film, lens, and imaging device

In the antireflection film, a hydrogenated carbon film as a first layer is formed on a surface of an optical substrate. A MgFfilm as a second layer having a lower refractive index than the first layer is formed on the first layer and functions as a low refractive index layer. The hydrogenated carbon film and the MgFfilm are formed using a RF magnetron sputtering equipment. During the formation of the hydrogenated carbon film, a mixed gas of argon and hydrogen is supplied to a vacuum chamber such that some of C&#x2014;C bonds in the film are replaced with C&#x2014;H bonds. Some of C&#x2014;C bonds are cut by hydrogenation, and strains (stress) accumulating due to C&#x2014;C bonds can be relaxed. As a result, the antireflection film which has excellent adhesiveness and is not broken is obtained.

A titanium alloy includes 15 to 27 atomic % (at %) of tantalum (Ta) and 0 to 8 at % of tin (Sn), the balance being titanium (Ti) and unavoidable impurities, when the entire amount of the titanium alloy is taken as 100 at %. Therefore, the titanium alloy provided has characteristics suitable for medical device materials, biocompatible materials, etc.

An antireflection multilayer film is formed by alternately laminating high refractive index layers and low refractive index layers having indexes of refraction different from each other. The high refractive index layer is an oblique deposition layer formed by depositing an inorganic material such as tantalum pentoxide onto the surface of an optical element from a diagonal direction, and has minute internal structures composed of slant columnar structures growing along to the deposition direction. The low refractive index layer is an isotropic and dense layer.

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Saitama, Japan

Hiroki Takahashi