Kabushiki Kaisha Toshiba

Qd Laser, Inc.

Fujitsu Corporation

The University of Tokyo

Zeon Corporation

Mitsumi Electric Company Ltd.

Toshiba Electronic Devices & Storage Corporation

University of Sheffield

Japan As Represented by Director General of Agency of Industrial Science

Tomey Corporation

Mitsuru Sugawara

Makoto Suzuki

Yasuhiko Arakawa

Toshiro Yamada

Toshiki Seshita

Tatsuya Sugimoto

Kinya Hasegawa

Tomoyuki Akiyama

Hiroji Ebe

Toshifumi Ishimori

Kenji Yasui

Michio Arai

Akitoshi Yoshinaga

Satoshi Kiriki

Sadao Tanikoshi

Masayuki Takami

Kimiaki Tanaka

Kazuhiro Ejiri

Masatoshi Watanabe

Denis Guimard

Shiro Tsukamoto

Toshinobu Hirayama

Takashi Yano

Yasuhiko Kuriyama

Nobuaki Hatori

Hiroyuki Ibe

Fumihiko Shimizu

Yoshiaki Nakata

Akira Sekiya

Yoshitomo Sagae

Yugo Kunishi

Makoto Usami

Richard Hogg

Kenichi Nishi

Kazuhiko Ide

Manish Sharma

Osamu Wada

Keizo Takemasa

Seiji Morino

Kyosuke Dobashi

Katsumi Kusama

Misato Abe

Shinji Ohno

Mototaka Kitajima

Tattee Khayim

Hiroyuki Agatsuma

Siming Chen

Mitsuru Otani

Masatoshi Nakao

Koki Mukai

Yutaka Yadoumaru

Shuichi Tojo

Hiroshi Okuda

Kimiyuki Ohba

Aikihiro Kawano

Takeo Kageyama

Ko Koga

Takashi Kita

Masahiro Sakakibara

Hironori Miyauchi

Hideo Mukai

A visual sense examination device includes: a beam source that emits a visible beam and an invisible beam; a visible beam optical system that includes a first scanner scanning the visible beam; an invisible beam optical system that includes a second scanner scanning the invisible beam; a detector that detects the invisible beam reflected by a retina of a subject; a controller that performs a first control; a synthesizer that synthesizes the visible beam scanned by the first scanner and the invisible beam scanned by the second scanner; and wherein scanning angles of the visible beam by the first scanner and the invisible beam by the second scanner are substantially the same, and projectable ranges of the visible beam scanned by the first scanner and the invisible light scanned by the second scanner are substantially the same on the retina of the subject.

Visual sense examination device

The present invention provides a polymer composition comprising a polymer and an antioxidant comprising a diarylamine-based compound represented by General Formula (1): where, in General Formula (1), Aand Aeach independently represent a Cto Carylene group which may have a substituent, and Aand Aeach independently represent an organic group having a cyclic imide structure which may have a substituent.

Polymer composition containing diarylamine-based compound

An image projection device includes: a light source emitting a light beam; an image input unit inputting image data; a control unit generating an image light beam based on the input image data, and controlling emission of the image light beam from the light source; a scan unit scanning the image light beam emitted from the light source; and a projection optical member illuminating a retina of an eyeball of a user with the image light beam scanned by the scan unit, and projecting an image onto the retina, wherein a diameter of the image light beam at a time when the image light beam enters a cornea of the eyeball is not smaller than 310 &#x3bc;m and not larger than 800 &#x3bc;m, and a user having an original visual acuity in a range of 0.04 to 1.2 has an acquired visual acuity of 0.4 or higher.

Image projection device

Provided is a vision test device including: a projection unitthat projects an image on a retina of a subject with use of a laser beamby two-dimensionally scanning the laser beam; a beam diameter setting unit that sets a beam diameter of the laser beam; and a numerical aperture setting unit that sets a numerical aperture of the laser beam, wherein the projection unit projects, on the retina, a test image for measuring visual information of the subject with use of a laser beam having the set beam diameter and the set numerical aperture.

Vision test device

The present invention provides a diarylamine-based compound represented by General Formula (1): (where Aand Aeach independently represent a Cto Carylene group which may have a substituent, and Aand Aeach independently represent an organic group having a cyclic imide structure which may have a substituent).

Diarylamine-based compound, anti-aging agent, and polymer composition

A visual field/visual acuity examination system includes a retinal projection head-mounted display; and a terminal device. The terminal device outputs examination image data to the retinal projection head-mounted display; displays an image on a display; and generates an examination image based on the examination image data and display the examination image on the display. The retinal projection head-mounted display inputs the examination image data from the terminal device; generates an image light beam based on the input examination image data and control emission of the image light beam from a light source; causes a scanning minor to scan the image light beam to generate an examination image light beam; and projects the examination image light beam as the examination image on a retina of an eyeball of a test subject after converging the examination image light beam in a vicinity of a pupil of the eyeball.

Visual field/visual acuity examination system, visual field/visual acuity examination device, visual field/visual acuity examination method, visual field/visual acuity examination program, and server device

A retinal scanning type eye examination device includes a storage unit configured to store test image data; a laser emitting unit including a laser light source configured to generate an imaging laser beam based on the test image data, the laser emitting unit being configured to project a test image onto a retina of an eyeball of a person subjected to an eye examination by using the imaging laser beam; an optical component configured to cause the imaging laser beam to converge at an inside of the eyeball of the person; a parameter acquiring unit configured to acquire parameter information for a retinal scanning type eyewear, the parameter information including angle information indicating a rotation angle of the laser emitting unit when the laser emitting unit is rotated around a converging point of the laser beam; and an output unit configured to output the parameter information to an external device.

Retinal scanning type eye examination device, retinal scanning type eye examination system, eyewear provision system, and retinal scanning type eyewear

According to one embodiment, a first switch controls conduction between first and second nodes according to a potential on a first control node. A second switch controls conduction between the first control node and a first potential node according to a potential on a second control node. A first circuit includes first and second output nodes respectively coupled to the first and second control nodes, and outputs at the second output node a potential that brings the second switch out of conduction while outputting a first potential at the first output node. The first circuit has a high impedance at the first output node while outputting at the second output node a potential that brings the second switch into conduction.

High-frequency integrated circuit

An image projection device includes: a projection unit that projects an image light beam forming an image onto a pupil of an eyeball of a user to project the image onto a retina of the eyeball; a detection unit that detects a direction in which the pupil has moved relative to a face of the user and a speed of movement of the pupil; and a control unit that performs different controls of the image when the pupil has moved at different speeds in a same direction.

An image projection device includes: a first mirror oscillating to scan an image light beam forming an image projected onto a retina of a user; a light source emitting the image light beam and a detection light beam to the first mirror at different timings; a second mirror having a first region reflecting the image light beam reflected by the first mirror to the retina and a second region reflecting the detection light beam reflected by the first mirror in a direction different from a direction in which the image light beam is reflected, and scanning neither the image light beam nor the detection light beam reflected by the first mirror; a detector detecting the detection light beam reflected by the second region; and a controller adjusting oscillation of the first mirror and an emission timing of the image light beam based on a detection result by the detector.

An image projection device includes: a projection unit that irradiates a pupilof an eyeballof a user with an image light beamforming an image to project the image onto a retinaof the eyeball; a detection unit that detects a directionin which the pupil has moved relative to a face of the user; and a control unit that controls the projection unit based on a detected direction in which the pupil has moved so that the pupil is irradiated with the image light beam and the image is moved in a direction opposite to the direction in which the pupil has moved with respect to a position on which the image has been projected before a move of the pupil in a coordinate system visually recognized by the user.

The present invention is an image projection device that includes: a light sourcethat emits a laser beam; a scanning mirrorthat two-dimensionally scans the laser beamemitted from the light source; and a projection mirrorthat projects scanned light onto a retinaof an eyeballof a user to project an image onto the retina, the scanned light being composed of the laser beamthat has been scanned by the scanning mirror, wherein the laser beamemitted from the light sourceis scanned by using a part of an operating range of the scanning mirror

Image projection device and projection device

The present display device is a retinal scan display device including: a projection optical system configured to project an image to a retina of an eye; a distortion correcting unit configured to correct a distortion of the image; an image inverting unit configured to invert the image; and a storage unit configured to store correction data for correcting the distortion of the image when the image is projected to a left eye and correction data for correcting the distortion of the image when the image is projected to a right eye, wherein, based on a switching signal that represents that a side at which the projection optical system is arranged has been switched from one eye side to the other eye side, the distortion correcting unit performs distortion correction, by switching from correction data corresponding to one eye to correction data corresponding to the other eye, and the image inverting unit performs image inversion.

Retinal scan display device for correcting distortion of and inverting image

An image projection device includes: one light source unit emitting an image light beam, which forms an image, of visible light and a checking light beam of visible light; an optical system projecting the image light beam emitted from emitted from the one light source unit onto a first surface region of an eye of a user to project the image light beam onto a retina of the user, and projecting the checking light beam emitted from the one light source unit onto a second surface region, which is distant from the first surface region, of the eye of the user; a light detector detecting a reflected light that is the checking light beam reflected by the eye of the user; and a controller controlling at least one of the one light source unit and the optical stem based on a detection result of the reflected light by the light detector.

A terminal device () includes a projection target holding unit that holds projection information to be projected by an image projection device (), a storage unit that stores position information indicating a position on the retina of a user (P) at which the projection information is to be projected, a position information acquisition unit that acquires the position information from the storage unit, an image data generation unit that generates image data (D) of an image (G) that projects the projection information at the position indicated by the position information, and an image output processing unit that outputs the image data (D) to the image projection device (). The image projection device () includes a light source unit that emits a light beam, an image input unit that inputs the image data (D) from the terminal device (), a control unit that generates an image light beam based on the input image data (D) and controls emission of the image light beam from the light source unit, a scanning mirror that scans the image light beam, and a projection unit that projects the image light beam on the retina of the eyeball of the user (P) as the image (G) represented by the image data (D).

Image projection system, image projection device, image projection method, image projection program, and server device

Growing community of inventors

Kawasaki, Japan

Mitsuru Sugawara