Hitachi, Ltd.

Ricoh Company, Ltd.

Hitachi Consumer Electronics Co., Ltd.

Hitachi-Lg Data Storage, Inc.

Maxell, Ltd.

Hitachi Maxell, Limited

Hitachi Maxwell, Ltd.

Satoshi Ouchi

Yoshiho Seo

Seiji Murata

Taro Imahase

Tomoki Kobori

Toshiteru Nakamura

Mayumi Nagayoshi

Tomohiro Miyoshi

Koji Hirata

Hajime Inoue

Hidehiro Ikeda

Tomoto Kawamura

Yoshinori Nakagawa

Shuji Hirai

Katsuaki Miyawaki

Nekka Matsuura

Osamu Satoh

Hisashi Shoji

Takahiro Matsuda

Yasushi Nakazato

Noriko Miyagi

Masahiko Yatsu

Tadayoshi Kosaka

Yuya Ogi

Kazuo Shikita

Hidenao Kubota

Tsutomu Nakashima

Takuji Kamada

Takashi Seto

Masaaki Yamada

Seiji Hoshino

Koichi Sakita

Hiroyuki Shibaki

Ryuji Ukai

Shinsuke Onoe

Fukuyasu Abe

Hiromi Kusaka

Nobuaki Kabuto

Tomoko Takahashi

Shoji Yamamoto

Hirokazu Takenaka

Takahiro Yagishita

Yasutaka Tsuru

Hitoshi Shimizu

Yoshio Okamoto

Susumu Yoshida

Taku Hoshizawa

Tetsu Ohishi

Toshiki Ishii

Chiyo Ohno

Yoshiharu Yamashita

Naohiro Ozawa

Takashi Kakuda

Yutaka Matsuda

Kunikazu Oonishi

Takuma Kuno

Mitsuru Nagasawa

Takuya Shiaki

Naohito Ikeda

Shingo Hayashi

Junichi Yokoyama

Michio Hatagi

Yukinobu Tada

Tadashi Kuwabara

Kenichiro Yamada

Iwao Takemoto

Makoto Tsumura

Hiroyuki Sakuyama

Koji Kobayashi

Shoichi Hirota

Hiroki Yoshikawa

Hiroshi Ogasawara

Kunikazu Ohnishi

Ryo Imai

Eiichi Ohta

Kouji Fujita

Futoshi Yamasaki

Atsushi Togami

Yuki Matsushima

Masayuki Fukui

Hideki Nakagawa

Tomohiko Tanaka

Tatsuya Ishikawa

Seiji Miyahara

Taiichi Takezaki

Kenji Kiya

Tsuneyuki Nozawa

Hiroshi Iwasa

Hidenao Saito

Kunikazu Onishi

Provided is a video display device wearable on the head of a user, wherein the video display device includes a video display unit capable of switching two or more display methods, a control unit for indicating a display method to the video display unit, a first detection unit for detecting the motion of the head of a user, a second detection unit for detecting the motion of the point of view of the user, and a motion determination unit for determining the motion state of the device user by using the output from the first detection unit and the output from the second detection unit. The control unit indicates a change of display methods to the video display unit in accordance with the determination result of the motion determination unit.

Video display device and control method

Provided is a remote work-support system including a first display device to be worn on a first user working at a work site, a surrounding imaging device disposed on the work site, and an information processing device provided at a predetermined spot, configured to be communicable with the first display device and the surrounding imaging device, and operated by a second user. The first display device includes a first communication unit transmitting first image data to the information processing device. The surrounding imaging device includes a second communication unit transmitting second image data to the information processing device. The information processing device includes second display devices displaying the first and second image data, an operation unit through which data is input, and a third communication unit transmitting data input by the second user through the operation unit to the first display device.

Remote work-support system

An optical scanning device includes: an optical scanning unit configured to repeatedly scan an irradiation destination of irradiation light to a predetermined trajectory; a light emission control unit configured to control light emission of the irradiation light to irradiate irradiation points to the predetermined trajectory; and a driving signal generation unit configured to generate a driving signal for driving the optical scanning unit, wherein the light emission control unit irradiates the irradiation points to the predetermined trajectory so that the irradiation points are substantially uniformly dispersed in a region in which a density of the irradiation points is relatively low in a region in which the irradiation light is irradiated.

Optical scanning device, catheter device, and distance measuring device

To propose an optical scanning method for a video device including an optical scanning unit in which one end of a light guide path has a protruding beam-shaped structure. The video device includes the optical scanning unit having the light guide path in which light enters from one end and emits from the other end, and a vibration unit configured to apply vibration to the light guide path via a joint unit in a vicinity of the other end of the light guide path; a drive signal generation unit that generates a drive signal for inducing vibration in the vibration unit; and a scanning trajectory control unit which has a function of independently vibrating the light guide path in a first direction substantially perpendicular to an optical axis direction of the light guide path, and in a second direction substantially perpendicular to the optical axis direction of the light guide path and substantially perpendicular to the first direction by the vibration unit, and which generates a first drive signal configured to drive the vibration unit in the first direction and a second drive signal configured to drive the vibration unit in the second direction with any pattern. The scanning trajectory control unit generates the first drive signal and the second drive signal as sine waves having different phases and a substantially same frequency, and sets a modulation amount of an amplitude modulation of a sine wave of the second drive signal to be larger than a modulation amount of an amplitude modulation of a sine wave of the first drive signal.

Video device

Both uniformity of brightness and uniformity of color of the outside world are seen via a waveguide. A video image is reflected by a partial reflection surface inside the waveguide that includes an incident surface on which video image light is incident, first and second internal reflection surfaces that propagate the video image light incident from the incident surface while totally reflecting the video image light, and are substantially parallel to each other. A plurality of partial reflection surfaces that reflect a part of the video image light propagating by being totally reflected by the first and second internal reflection surfaces, output the part of the video image light as output light from the first internal reflection surface to the outside of the waveguide, and transmit the part of the video image light being incident, and are disposed substantially parallel to each other inside the waveguide.

Waveguide and video image display device

To provide a wide eye box and are capable of displaying a video having uniform luminance, it is provided a video display apparatus comprising: a video projection unit configured to project video light; a video light replication unit configured to replicate the video light; and a light guiding unit configured to transmit the video light through an inside of the light guiding unit, wherein the video light replication unit is configured to transmit the video light emitted from the video projection unit to the light guiding unit, wherein the light guiding unit is configured to transmit the video light that has entered through the inside to output the video light, and wherein the video light replication unit is configured to replicate the video light that has entered the video light replication unit so that a luminance distribution of the video light output from the light guiding unit is uniform.

Video display apparatus and video display system

A light guide plate includes: first and second internal reflective surfaces that are approximately parallel and propagate incoming image light while totally reflecting the image light; a partially reflective surface array that has a plurality of partially reflective surfaces arranged in a direction of propagating image light, the partially reflective surfaces being inclined at a predetermined angle and partially reflecting the image light; and a uniforming element that uniforms intensity distribution of image light which is reflected by the partially reflective surface array to be projected from the light guide plate. As the uniforming element, the partially reflective surface array is divided into a plurality of segments along a direction of propagating image light, and the inter-surface spacing of the partially reflective surfaces or the reflectivity of the partially reflective surfaces is configured to vary from segment to segment.

Light guide plate and image display apparatus

The reflection surface of a DMD is divided into a first area and a second area, causing the first area to display images while appropriately controlling the on and off states of the micromirrors within the second area on the basis of a prescribed control logic according to the on and off states of the micromirrors within the first area. Further, the DMD off-state light created in the first and second areas is caused to recurse to the DMD via a prescribed recycle optical system for the DMD off-state light, and only the second area in the reflection surface is intensively irradiated along a prescribed irradiation direction, thereby efficiently converting the DMD off-state light to the effective projection light.

Video projector having video display element with reflection surface formed of a plurality of micromirrors

In an optical scanner, a vibration portionincludes first and third elementsandthat vibrate a light guide pathin a direction substantially perpendicular to an optical axis direction, and second and fourth elementsandthat vibrate the light guide path in a direction substantially perpendicular to a vibration direction thereof. A driving signal is applied to each of electrodesto, each of which corresponds to one electrode of each of the first to fourth elements, and the other electrodeis used as a common electrode having a floating potential. A driving signal generatorgenerates a driving signal such that a median value of driving signals Vand Vapplied to the first and third elements and a median value of driving signals Vand Vapplied to the second and fourth elements correspond to substantially the same value.

Optical scanner and imaging apparatus

An image processing apparatus includes a detector to detect, from a multi-value image, a table that can display a character in each of a plurality of cells delimited by a plurality of ruled lines and a conformation unit that determines how to conform a color of a constituent element in the table based on information of the element in the table detected by the detector.

Image processing apparatus, image processing method, and non-transitory recording medium storing program for causing computer to execute image processing method

In a wearable information display terminal, information related to an object is displayed at a timing required by a user in an easily recognized form. Photography is performed in a field-of-vision direction, a first object is detected from a first image obtained by the photography, relevant information related to the first object is acquired from a network, and a second image related to the relevant information is generated. A second object different from the first object is detected from the first image, the second object is used as a display trigger, and the second image is displayed when the second object is close to the first object.

Information display terminal, information display system, and information display method

A video projection deviceincludes a video generation sectionthat has a micro display elementwhich generates video and an illuminating optical systemwhich illuminates a micro display element; projection sectionthat project the video which is generated by the video generation section onto the eyes of a user through an eyepiece section; and a mechanical support sectionthat connects the video generation section to the projection section using a housing section. The mechanical support section includes at least one transparent areathat is surrounded by the housing section, and penetrates in a direction parallel to a direction in which the video from the projection section is projected. The illuminating optical system includes a light source that emits light in a plurality of wavelength bands, and a controllerthat controls the output of the light source.

Video projection device and head mounted display using the same

An information display terminal includes an arithmetic unit performing a process that selects a predetermined type of communication unit among a plurality of types of communication units on the basis of, for example, information related to first objects recognized from a captured image, which is stored in advance, and acquires the related information from a predetermined device on the Internet through the communication unit and a process that, when the presence of a second object or a predetermined positional relationship between the first objects and the second object is specified in the captured image, displays the related information of the first objects in a viewing direction, using a display unit.

Information display method and information display terminal

Growing community of inventors

Tokyo, Japan

Satoshi Ouchi