Fujifilm Corporation

Canon Kabushiki Kaisha

Sony Corporation

Fuji Photo Film Company, Limited

Mitsubishi Denki Kabushiki Kaisha

Kabushiki Kaisha Kawai Gakki Seisakusho

Renesas Electronics Corporation

Tosoh Corporation

Saturn Licensing LLC

Siemens Aktiengesellschaft

Nissan Motor Company Limited

Digital Equipment Corporation

Isuzu Motors Limited

Toyo Seikan Kaisha, Ltd.

Mitsubishi Denki K.k.

Hiroshi Sato

Yukito Saitoh

Katsumi Sasata

Mitsuyoshi Ichihashi

Masato Katayama

Tetsujiro Kondo

Keita Takahashi

Yujiro Yanai

Yasuyuki Tamura

Takeshi Matsushita

Hiroshi Matsuyama

Masanobu Takashima

Akira Yamamoto

Satoshi Akagawa

Manabu Shiraki

Masakazu Matsugu

Katsufumi Ohmuro

Hideki Ina

Shuzo Kaneko

Hideo Nakaya

Hideyuki Nishikawa

Naoyoshi Yamada

Kazutaka Ando

Keisuke Kodama

Takayuki Suzuki

Tetsuo Hasegawa

Masaaki Suzuki

Kotaro Yano

Kiyoshi Takeuchi

Katsuhiko Mori

Yasushi Shimizu

Masahiro Yoshida

Yusuke Mitarai

Yoshinori Ito

Nobuyuki Kuwabara

Shinichi Morishima

Shoji Shiba

Masami Kato

Takahisa Yamamoto

Shunya Katoh

Yuji Kaneda

Jun Ito

Masanobu Saito

Atsushi Kimura

Daisuke Sato

Takashi Yonemoto

Shingo Utsuki

Ayako Muramatsu

Kazumi Tanaka

Akiko Watano

Kazuto Nishizawa

Junichi Nagahara

Daisuke Kashiwagi

Makoto Ishiguro

Naoki Kushida

Taiji Katsumata

Fumitake Mitobe

Hisao Yaegashi

Kazushige Sakurai

Yoshimitsu Arai

Seiichi Shinohara

Yoshihiko Utsui

Mayumi Nojiri

Tetsunori Matsushita

Yoshiaki Hisakado

Kazumi Yamauchi

Megumi Sekiguchi

Hidekazu Shimomura

Yoshihiro Jimbo

Aiko Yoshida

Michio Nagai

Junichi Kato

Shigeaki Nimura

Kojiro Yasui

Yoshinori Murakami

Hironobu Isobe

Yasufumi Yoshino

Takao Taguchi

Makoto Hashimoto

Keiji Okano

Rikio Inoue

Naoto Yanagihara

Sadao Ishige

Yuuichi Fukushige

Yuki Fukushima

Shojiro Sano

Satoru Motohashi

Hideo Noro

Michael L Mallary

Ryoji Goto

Hisato Nagase

Seiichiro Morikawa

Hiromasa Ozawa

Kazuhiro Mitamura

Hiroyuki Oba

Akihiro Okumura

Koji Iijima

Atsuo Nomoto

Motomu Fukasawa

Takayuki Sugiyama

Provided are an optical element and an image display apparatus that display an aerial image, in which the total volume of the apparatus is small, a reduction in size can realized, and a scenery can be recognized. The optical element includes: a light guide element including a light guide plate, an incidence diffraction element, and an emission diffraction element, the incidence diffraction element being disposed on a main surface of the light guide plate and the emission diffraction element being disposed on the main surface of the light guide plate; and a positive lens that is disposed at a position overlapping the emission diffraction element in a view from a direction perpendicular to the main surface of the light guide plate, in which the incidence diffraction element diffracts incident light such that the diffracted light is incident into the light guide plate, the emission diffraction element emits light propagating in the light guide plate from the light guide plate, and the positive lens collects the light that is emitted from the light guide plate by the emission diffraction element.

Optical element and image display apparatus

A light deflection device having a simple structure suitable for reducing the size and weight where a deflection angle can be increased, and an optical device including the light deflection device. The light deflection device includes: a MEMS light deflection element that deflects incident light to be emitted; and an angle increasing optical element that is disposed downstream of the light deflection element in a light traveling direction and increases an angle range of a deflection angle of light emitted from the light deflection element, in which the MEMS light deflection element has a function of collecting and emitting incident light.

Light deflection device and optical device

An optical element includes a light guide plate, an incidence portion, and an emission portion, in which the incidence/emission portion includes an Λdiffraction element having a diffraction period Λ, an Λdiffraction element having a diffraction period Λ, and an Λdiffraction element having a diffraction period Λ=1:1√2±0.015:1/2±0.015' is satisfied, an angle between periodic directions of the Λdiffraction element and the Λdiffraction element and an angle between periodic directions of the Λdiffraction element and the Λdiffraction element is 45° or 135° (±0.5°), and an angle between the periodic directions of the Λdiffraction elements in the incidence portion and the emission portion is any one of 0°, 90°, 180°, or 270° (±0.5°).

Provided are an optical laminate that can refract incident light with a high use efficiency to be incident into a light guide plate or the like, and a light guide element and an image display device including the optical laminate. The optical laminate includes first and second cholesteric liquid crystal layers that have a liquid crystal alignment pattern in which a direction of an optical axis derived from a liquid crystal compound changes while continuously rotating in at least one in-plane direction, in which in the first and second cholesteric liquid crystal layers, helical pitches in a cholesteric liquid crystalline phase are different from each other, turning directions of circularly polarized light to be reflected are the same, and rotation directions of the direction of the optical axis that continuously rotates in at least one in-plane direction in the liquid crystal alignment pattern are the same.

Optical laminate, light guide element, and image display device

An apparatus includes an extraction unit configured to extract an N-dimensional feature vector (N is an integer that is greater than M) in a second format including an M-dimensional feature vector (M is an integer of 2 or greater) in a first format from input data, and an identification unit configured to identify a target in the input data based on the feature vector in the first format and the feature vector in the second format.

Object recognition using partial and full feature vector extraction respectively applying recall ratio and precision based on similarity metrics or training

Provided are an optical element that can make the brightness of light emitted from a light guide plate uniform, a light guide element, and an image display device. The optical element includes a patterned cholesteric liquid crystal layer that is obtained by immobilizing a cholesteric liquid crystalline phase, in which the patterned cholesteric liquid crystal layer has a liquid crystal alignment pattern in which a direction of an optical axis derived from a liquid crystal compound changes while continuously rotating in at least one in-plane direction, and the patterned cholesteric liquid crystal layer has regions having different pitches of helical structures in a plane.

Optical element, light guide element, and image display device

Provided is a small-sized light irradiating device having a simple configuration that projects an optical pattern. The light irradiating device includes a light source and a liquid crystal hologram element, in which the liquid crystal hologram element diffracts transmitted light in a plurality of different directions, the liquid crystal hologram element includes a liquid crystal hologram layer, the liquid crystal hologram layer is a layer that consists of a computer generated hologram and is formed of a composition including a liquid crystal compound, and the liquid crystal hologram layer further includes a plurality of regions in which directions of optical axes derived from the liquid crystal compound are different from each other.

Light irradiating device and sensor

Provided is a method of manufacturing an optical element in which aligning properties of an alignment pattern in a photo-alignment film is improved such that alignment defects of a liquid crystal compound in a liquid crystal layer can be suppressed. The method of manufacturing an optical element includes: an exposure step of performing interference exposure to a surface of a photo-alignment film including a photo-alignment material to form, on the photo-alignment film, an alignment pattern in which a direction of an optical axis derived from a liquid crystal compound changes while continuously rotating in at least one in-plane direction; and a liquid crystal layer forming step of applying a liquid crystal composition including a liquid crystal compound to the photo-alignment film where the alignment pattern is formed to form a liquid crystal layer, in which the photo-alignment material includes an azo compound, and the exposure step is performed in an environment having a relative humidity of 50% or less.

Method of manufacturing optical element

An optical member and an image display apparatus including the optical member. The optical member includes: a light guide element including a light guide plate, first and second incidence diffraction elements, and first and second emission diffraction elements; a wavelength selective retardation layer that functions as a retardation layer with respect to a specific wavelength range, and changes a polarized state of light diffracted by the first or second emission diffraction element; and a polarizer, in which the first and second emission diffraction elements are polarization diffraction elements and diffract light components such that the diffracted light components are polarized light components having opposite properties, the first and second emission diffraction elements, the wavelength selective retardation layer, and the polarizer overlap each other in a main surface of the light guide plate, and the wavelength selective retardation layer is provided between the light guide element and the polarizer.

Optical member and image display apparatus

Provided is a sensor having a high SN ratio. The sensor includes a light source, a band pass filter, and a light-receiving element, in which the band pass filter includes two cholesteric liquid crystal layers and a discontinuous layer disposed between the two cholesteric liquid crystal layers, in the two cholesteric liquid crystal layers, helical twisted directions and helical pitches are the same, and in a case where the discontinuous layer is a layer other than a cholesteric liquid crystal layer and a wavelength having a lowest reflectivity in a selective reflection wavelength range of the band pass filter is represented by λm [nm], a thickness [nm] is in a range of '30×(λm/550) to 150×(λm/550)'.

Sensor

An imprint method of performing an imprint process for a shot region of a substrate using a mold is provided. The substrate includes a valid region where a chip is to be formed, and an invalid region outside the valid region where no chip is to be formed, and the invalid region is a region formed by etching an outer region outside the valid region. The method includes deciding, based on a height difference between the valid region and the invalid region, an imprint condition for a partial shot region defined by an outer edge of the valid region, and performing the imprint process for the partial shot region in accordance with the decided imprint condition.

Imprint method and article manufacturing method

An object is to provide a liquid crystal diffraction element that has small wavelength dependence of diffraction efficiency and diffracts light having the same wavelength at the same angle, an optical element including the liquid crystal diffraction element, and an image display unit, a head-mounted display, a beam steering, and a sensor including the liquid crystal diffraction element or the optical element. The liquid crystal diffraction element includes an optically-anisotropic layer that includes a liquid crystal compound, in which the optically-anisotropic layer has a liquid crystal alignment pattern in which a direction of an optical axis of the liquid crystal compound continuously rotates in one in-plane direction, and in an image obtained by observing a cross-section of the optically-anisotropic layer with a scanning electron microscope, the optically-anisotropic layer has bright portions and dark portions extending from one surface to another surface, each of the dark portions has two or more inflection points of angle, and the optically-anisotropic layer has regions where tilt directions of the dark portions are different from each other in the thickness direction.

Transmission type liquid crystal diffraction element, optical element, image display unit, head-mounted display, beam steering, and sensor

A substrate processing method includes a first process configured to process a substrate with a top plate disposed nearer an upper surface of the substrate, the substrate being held by a substrate holding unit of a first substrate holding apparatus, a second process configured to raise the substrate with the top plate disposed on the first substrate holding apparatus to make a space between the substrate holding unit and the substrate, a third process configured to insert a substrate conveyance apparatus for conveying the substrate with the top plate disposed on the first substrate holding apparatus to a second substrate holding apparatus into the space, and a fourth process configured to convey the substrate to the second substrate holding apparatus.

Substrate processing method, substrate holding apparatus, molding apparatus, and article manufacturing method

Provided are: an image display apparatus in which the utilization efficiency of a virtual image is high and the virtual image having high brightness uniformity can be displayed to be superimposed on a real image; and AR glasses including the image display apparatus. The image display apparatus includes: a display element; one or more cholesteric liquid crystal layers that reflect a display image of the display element; and a transparent reflection element that reflects the image reflected by the cholesteric liquid crystal layer to the cholesteric liquid crystal layer, in which at least one of the cholesteric liquid crystal layers has a structure having a region where a surface pitch changes in a thickness direction.

Image display apparatus including a cholesteric liquid crystal layer having a pitch gradient structure and AR glasses

An object is to provide a light deflection device and an optical device having a simple structure suitable for reducing the size and weight where a deflection angle can be increased. The light deflection device includes: a light deflection element that deflects incident light in one in-plane direction to be emitted; a driving unit that drives the light deflection element; a light collecting element that is disposed on a light emission side of the light deflection element; and an angle increasing optical element consisting of a diffraction element in which a periodic structure pitch gradually changes from a center of deflection of the light deflection element toward an outer side.

Growing community of inventors

Kanagawa, Japan

Hiroshi Sato