Ricoh Company, Ltd.

Other

Kitaoka, Yuki

Kenji Kameyama

Yasuo Katano

Shigenobu Hirano

Yasuyuki Takiguchi

Naoki Nakamura

Masahiro Itoh

Yoshifumi Sudoh

Takashi Maki

Yoshiyuki Kageyama

Kazuya Miyagaki

Hiroshi Deguchi

Toshiaki Tokita

Toshiharu Murai

Ikue Kawashima

Takeo Tsukamoto

Masamichi Yamada

Hiroyuki Takahashi

Masanori Kobayashi

Katsuyuki Yamada

Shigeaki Nimura

Atsushi Takaura

Hidenori Tomono

Yukio Fujiwara

Hiroyuki Sugimoto

Takanobu Osaka

Eiichi Ohta

Yuji Kimura

Kazuhiro Fujita

Hiroto Higuchi

Manabu Nonaka

Yasunobu Youda

Shuji Tanaka

Shinichiro Naruse

Yasuhiro Kawashima

Norikazu Igarashi

Aino Hasegawa

Susumu Momma

Shun Okazaki

Satomi Tanaka

Kenji Namie

Ikuo Katoh

Masaetsu Takahashi

Shiroh Ikegami

Yuuto Gotoh

Qing Liang

Yumi Matsuki

Hitoshi Kondo

Takanori Inadome

Seiichi Ohseto

Hideaki Aratani

Seiichi Oseto

Fumio Yoshizawa

Akihiko Kanemoto

Hajime Nishida

Satoshi Yamauchi

Taku Kudoh

Eiki Yoshimizu

Akihiro Fujita

Shoji Asanuma

Kiyohiko Shinomiya

Kazumasa Ishikawa

Yohzoh Dohki

Masaki Ninomiya

Shigeyuki Ito

Fuminao Matsumoto

Toshiki Suzuki

Masanobu Nishimiya

Shiori Ohsugi

Yukiko Oshima

Takemasa Tsutsui

Yuki Kitaoka

Makoto Tanabe

Keisuke Konishi

Juuta Kon

Hirotaka Nitta

Yohzoh c/o Ricoh Elemex Corp Dohki

Shigeyuki c/o Ricoh Elemex Corp Ito

A light guide includes light guiding members including first and second light guiding members, an optical entrance having a plane on which the light is incident, a light guiding unit to guide the light incident on the optical entrance with repeated reflection, a light beam ejection unit to eject the light to an outside of the light guide, and an extraction unit to reflect the light guided by the light guiding unit toward the light beam ejection unit. The light guiding members guide and eject a light, and the second light guiding member is bonded to, at least, the light guiding unit of the first light guiding member.

Light guide and virtual-image display device

A light guide member () includes a boundary surface () configured to reflect image light guided to the boundary surface () and emit the image light outside the light guide member (), an opposing surface () parallel to the boundary surface (), the opposing surface () facing the boundary surface (), a first inclined surface () having an inclination in which a distance between the first inclined surface () and the boundary surface () decreases in a guiding direction of the image light, and a second inclined surface () between the opposing surface () and the first inclined surface (), the second inclined surface () inclined at a different angle with the first inclined surface () in the guiding direction.

Light guide member and display device

A propagation optical system includes: a first optical system; an intermediate optical element; and a second optical system. The first optical system, the intermediate optical element, and the second optical system being sequentially arranged in a direction from the image display element toward the light guide member along an optical axis. The intermediate optical element has a non-rotationally symmetric curved surface, of which shape is non-rotationally symmetric about the optical axis. A cross-sectional shape, of the non-rotationally symmetric curved surface, in a first plane including the optical axis is non-arc shape. The first plane is a plane in which the non-rotationally symmetric surface has a strongest positive power among planes including the optical axis. The propagation optical system is configured to form, between the first optical system and the second optical system, an intermediate image corresponding to an image displayed on the image display element.

Propagation optical system and virtual image display device

A virtual image display device includes: an image display element that displays an image to be displayed as a virtual image; a propagation optical system that propagates light from the image display element; and a light guide member that guides the light propagated by the propagation optical system. The light guide member includes: a light beam incident part that introduces light including image information from the propagation optical system into the light guide member; an image extractor that extracts the light including image information from an inside of the light guide member; and an image emitter that emits the light including image information to an outside of the light guide member. The propagation optical system includes one or more optical members each having a curved surface shape that is non-rotationally symmetric with respect to an optical axis.

Virtual image display device

A head-mounted display device includes an image display unit () configured to emit image light, a light guide member () configured to guide the image light and emit the image light to eyes of a wearer who wears the head-mounted display device, and a relay optical system () arranged between the image display unit and the light guide member, and configured to relay the image light from the image display unit to the light guide member, and form an intermediate image at least once before the image light enters the light guide member.

Head-mounted display device containing relay optical system between image display unit and light guide member and display system

A head-mounted display device includes a display element to display an image; a light guide member to emit the image displayed on the display element to an eye of a wearer; a housing including an optical system to guide image light of the image displayed on the display element to the light guide member; and an adjustment member provided on a side of the light guide member opposite to the optical system, and to bend the housing on a side opposite to a face of the wearer.

Head-mounted display device with adjuster

A display apparatus that enhances a response speed while suppressing reduction in durability even when the transmittance control is performed. The display apparatus includes a display, a plurality of light adjustment devices, and a controller. The display is configured to be attached to a head of a user to display information to the user. Each of the plurality of light adjustment devices is configured to change a transmittance to adjust an intensity of light incident from outside. The controller is configured to independently control the transmittances of the plurality of light adjustment devices separately from each other.

Display apparatus and display method

A monocular image display device includes a virtual image former to display an image in front of one eye of a user and a primary light amount adjuster being in front of another eye of the user. The primary light amount adjuster is disposed closer to the one eye of the user than an optical axis of the another eye of the user is.

Monocular image display device

A management server communicable with a plurality of terminal devices, including a first terminal device, includes: a receiver to receive, from the first terminal device, shared information to be shared between the plurality of terminal devices, the shared information including first location information indicating a current location of the first terminal device, direction information indicating a direction that the first terminal device faces, and distance information indicating a distance from the first terminal device to a target destination; circuitry to generate target destination information including second location information indicating a location of the target destination based on the shared information received from the first terminal device; and a transmitter to transmit the target destination information to the plurality of terminal devices for display at the plurality of terminal devices.

Apparatus, system, and method of information sharing, and recording medium

An arbitration device comprises a determining unit that determines priority of each of a plurality of electrical devices according to at least either a position or an action status of a person present in a target area for control; and a calculating unit that calculates electrical power to be allotted to each of the electrical devices in such a way that a total of electrical power allotted to a plurality of the electrical devices is within a limit value and the electrical devices having the priority at high levels are allotted with electrical power on a priority basis.

Arbitration device, arbitration method, and computer program product

A type determination apparatus includes an acquisition unit configured to chronologically acquire power consumption consumed by an electrical device; and a determination unit configured to determine that a type of the electrical device is a type to be determined in accordance with a reference pattern representing a predetermined pattern of a power fluctuation when a fluctuation pattern of the power consumption acquired for a duration equal to or more than a reference period of time is matched with the reference pattern.

Type determination apparatus, type determination method, and computer-readable storage medium

An administration apparatus to administer an inhibitor drug to a patient to inhibit cell division of a malignant cell includes an administration unit configured to administer the inhibitor drug to the patient; an administration timing storage unit configured to store an administration time to start an administration of the inhibitor drug; a time measurement unit configured to measure a current time; and a control unit configured to drive and control the administration unit so as to administer the inhibitor drug to the patient when the current time coincides with the administration time. The administration time is set on a basis of a predetermined phase of a cell cycle of the malignant cell.

Administration apparatus, operating method thereof and administration method

An image processing apparatus includes a storage unit storing the OSD image data corresponding to plural subframes; a load storage unit loading and storing the OSD image data corresponding to the plural subframes; a reading unit reading out plural subframes of the OSD image data in parallel; and a controlling unit controlling to load in parallel the plural sunframes of the OSD image data into the load storage unit and to read out in parallel from the load storage unit and transmits the OSD image data to a combining unit to combine the OSD image data with the corresponding image data.

Image processing apparatus and image display apparatus

A reliable image display apparatus is provided that is capable of preventing a direct current from being applied to liquid crystal of a spatial light modulating element so that damage such as burns in the liquid crystal and screen flicker may be prevented and a high resolution image with high image quality may be displayed. The image display apparatus is configured to divide a frame into 2i sub frames (i corresponding to a natural number) and sequentially display the sub frames using the liquid crystal spatial light modulating element. The image display apparatus includes a polarity switching unit configured to reverse the polarity of a drive voltage for a pixel of the spatial light modulating element for every j sub frame(s) (j corresponding to a natural number that is less than 2i) and for every n frame(s)(n corresponding to a natural number).

Image display apparatus and alternative current drive method

An apparatus, method, system, computer program and product, each capable of converting a resolution of an image using an interpolation method. The interpolation method determines a pixel value of an interpolated pixel based on a weighting factor, which is generated based on a pixel value and a distance value of a reference pixel.

Converting the resolution of an image using interpolation and displaying the converted image

Growing community of inventors

Kanagawa, Japan

Kenji Kameyama