Hitachi Media Electronics Co., Ltd.

Hitachi, Ltd.

Hitachi-lg Data Storage, Inc.

Hitachi High-tech Corporation

Maxell, Ltd.

Hitachi Chemical Company, Ltd.

Hitachi Consumer Electronics Co., Ltd.

Tomoto Kawamura

Kunikazu Ohnishi

Toshiteru Nakamura

Masayuki Inoue

Satoshi Ouchi

Yoshiro Konishi

Toshimasa Kamisada

Yasuo Kitada

Yoshiho Seo

Kazuyoshi Yamazaki

Seiji Murata

Yoshio Okamoto

Hiroshi Ogasawara

Katsuhiko Izumi

Kotaro Oishi

Daisuke Tomita

Sakuichiro Adachi

Takahiro Matsuda

Ryuji Ukai

Shin Imamura

Yuya Matsuoka

Mitsuru Nagasawa

Takahiro Ando

Hiromitsu Mori

Takeru Utsugi

Shingo Hayashi

Hiromi Kita

Sayako Itoh

Toshifumi Honda

Kenichiro Yamada

Takeshi Ishida

Yoshifumi Sekiguchi

Masayuki Kobayashi

Yuya Ogi

Shigeharu Kimura

Masaaki Komatsu

Kouji Fujita

Eiichiro Takada

Toshihiro Kuroda

Shinsuke Onoe

Yutaka Kawakami

Yasuhiro Keta

Hideo Suenaga

Kenji Kiya

Daichi Sakai

Michio Hatagi

Hiromichi Yamakawa

Mayu Sao

Nobuyoshi Shimane

Fumiyasu Sato

Kenshiro Ohtsubo

Eriko Tatsu

Masataka Sugita

Andreas Karsaklian Dal Bosco

Hidenao Saito

Toshiyuki Takaiwa

A defect inspection apparatus includes a first objective lens having an optical axis is perpendicular to a wafer mounting surface of the stage, a second objective lens having an optical axis forms a predetermined acute angle with respect to the wafer mounting surface of the stage, and a dichroic mirror which reflects light having a first wavelength and transmits or reflects light having a second wavelength. Emitted light of a first optical pathfrom a first light source which is reflected from or transmitted through the dichroic mirror and first emitted light and second emitted light polarized and separated from a second light source which are transmitted through or reflected from the dichroic mirror are incident on the first objective lens, and emitted light of a second optical path from the first light source is incident on the second objective lens.

Defect inspection apparatus and defect inspection method

A biological sample detection device configured to acquire color information of an object of analysis without a deterioration in color extraction accuracy caused by incorrect extraction of color of a colored label and to measure the amount of liquid and determine the type of a sample, by analyzing the biological sample housed in a biological sample tube to which a colored label is attached, and determining whether or not a colored label is present on the biological sample tube; extracting the colored label determined to be present by the colored label presence determining process; removing the colored label from the color image and extracting a detection object region in the biological sample; and analyzing to acquire color information of the detection object region and analyze the liquid amount and the type of the biological sample.

Biological sample detection device

This invention is capable of improving performance of a biochemical analyzer and facilitating the maintenance. A light source includes: a first LED that emits ultraviolet light and a second LED that has a light emission spectrum different from that of the first LED, the first LED and the second LED being disposed in parallel; a reflection surface that is opposite to the first LED and reflects light of the first LED; and a dichroic surface that is opposite to the second LED, reflects light of the first LED, and allows light of the second LED to penetrate. When an optical member including the dichroic surface is made to be the dichroic prism, the reflection surface reflects light of the first LED to the second LED side, and by using light source of a configuration having a light shielding unit between a light emission surface of the second LED and a dichroic prism, entering of a light emitted from the plural LEDs as a one light beam (beam) to an optical system of latter stage of the biochemical analyzer is enabled.

Light source and biochemical analyzer

A HUD apparatus that is an AR display apparatus mounted on an on-vehicle system includes: an image selection unit configured to input an image photographed by a camera, select and extract an area of an object from the image; a visibility judgment unit configured to judge visibility of a user with respect to the area of the object on a basis of an index value; an AR image generator unit configured to generate an AR image regarding the object by subjecting the area to image processing for improving the visibility on a basis of the visibility of the area of the object; and an AR display unit configured to superimpose and display the AR image onto a screen. The visibility judgment unit controls whether the AR image is to be displayed or not and content of the image processing to be changed in accordance with the visibility.

AR display apparatus and AR display method

A broadband light source device in a biochemical analyzing device, and facilitates maintenance thereof, including an LED substrate that is provided with an LED chip generating a light beam having a first wavelength band and including a fluorescent substance in the light beam having a first wavelength band and that is provided with an LED chip generating a light beam having a second wavelength band, in which the fluorescent substance includes at least alumina and at least one of Fe, Cr, Bi, Tl, Ce, Tb, Eu, and Mn and is produced by calcining a raw material that contains sodium at 6.1 to 15.9 wt. % in the whole raw material. The broadband light source device further includes an optical system including a light pipe that color-mixes the light beam passing through the fluorescent substance of the LED chip and the light beam emitted from the LED chip, and a flat dichroic prism.

Broadband light source device and biochemical analyzing device

There is provided a highly efficient virtual image projection device in a small size that displays images of high luminance in which an illumination system is reduced in size with no degradation in an effective luminous light beam. A virtual image projection device that shows video to a human eye includes a virtual light source surface () that emits a light beam in a predetermined angular distribution, an image forming lens () that condenses the light beam from the virtual light source surface (), and a display () that creates video. When the virtual light source surface () is disposed at a nearly focal position on the front side of the image forming lens (), the display () is disposed at a nearly focal position on the rear side of the image forming lens.

Virtual image projection device

It is an objective of this disclosure to protect a highly transparent hologram light guide plate from water vapor and ultraviolet ray, thereby suppressing deterioration of the hologram light guide plate even when employed in a head mount display used in outdoor environments. A hologram light guide plate according to this disclosure comprises a protection layer that protects a hologram layer and an intermediate layer that is placed between a glass layer and the protection layer, wherein the glass layer and the hologram layer form a transfer layer that transfers image light. The intermediate layer causes the image light to transfer only in the transfer layer in a section from an input area of the image light to an output area of the image light.

Hologram light guide plate with plurality of layers and head mount display using hologram light guide plate

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

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

An object of the invention is to provide a technology for further improving scanning performance. Provided is an optical scanning device including: a scanning unit including an optical waveguide configured to guide incident light and emit the light from an emission end, and a vibration unit configured to generate a vibration and vibrate the emission end; and a signal transmission unit configured to transmit a signal to the scanning unit and cause the scanning unit to scan an object, characterized in that the scanning unit includes a first bonding and vibration attenuating unit configured to bond, with an elastic member, an end surface of the vibration unit closer to the emission end and the optical waveguide.

Optical scanning device, imaging device, and TOF type analyzer

A head-mounted display () includes: an imaging assembly () imaging scenery seen by a user to generate a source picture; a storage unit () storing color correction factors used for correcting brightness of each of a red, green and blue color components included in a picture; a correction picture generator () performing color correction processing for enhancing a color component with a relatively low color correction factor stored in the storage unit (), of the red, green and blue color components forming the source picture, to generate a correction picture; a picture display assembly () displaying the correction picture in the field of view of the user under a condition where he/she is able to perceive the outside world; and a special picture processor () performing picture processing for overlaying the correction picture and the source picture on each other for display.

Head-mounted display, head-up display and picture displaying method

The purpose of the present disclosure is to provide a small optical integrator for increasing color mixing property and homogeneity. An optical integrator is provided with a light entrance surface and exit surface (), and side surfaces () that connect the entrance surface and the exit surface, and is internally filled with a light guide material having a refractive index. The light guide material contains scattering particles for scattering light that have a refractive index different from the refractive index of the light guide material. The light that has entered via the entrance surface propagates from the entrance surface side toward the exit surface while being scattered by the scattering particles in the light guide material, wherein part of the scattered light is guided to the exit surface by propagating while being confined, by internal reflection on the side surfaces, in the light detector.

Optical integrator and video projection device using same

There are provided a dimmer that can solve practical problems including burn-in and easily change a transmittance to external light and a video display device using the same. A dimmer includes a stack of two or more light control layers that change a transmittance to incident light by controlling an applied voltage in the incident direction of the incident light. A video display device includes a video generator that generates picture light; a video projector that projects the picture light as a virtual image in the field of view of a user; the dimmer disposed on the opposite side of the projecting side of the video projector to the user for adjusting the light quantity of external light to be entered to a user's eye through the video projector; and a light controller that controls the dimmer suitable for the luminosity of external light detected at an external light detector.

Dimmer and video display device using the same

An image display apparatus which displays, as a virtual image, image in a visual field of a user, including an image generation section to generate image; an illumination section to illuminate light to the image generation section; and a projection section by which the image generated by the image generation section is projected, as a virtual image, into the visual field of the user, the projection section includes: a prism lens formed by integrating, by predetermined unit, a lens to generate the virtual image, with a prism provided thereon with a half mirror film which bends, in the direction of the pupil, a signal light from the image generation section; and aperture restriction unit which is provided on the incident surface of the prism lens, and which allows light in a predetermined area of the signal light from the image generation section to pass therethrough.

Image display apparatus and head mounted display

Growing community of inventors

Tokyo, Japan

Tomoto Kawamura