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公开(公告)号：US11586038B2
公开(公告)日：2023-02-21
申请号：US16476296
申请日：2017-10-05
Applicant: QD LASER, INC.
Inventor： Makoto Suzuki , Kenji Yasui , Mitsuru Sugawara
Abstract: 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 μm and not larger than 800 μm, 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.
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公开(公告)号：US11717157B2
公开(公告)日：2023-08-08
申请号：US16650798
申请日：2018-09-12
Applicant: QD LASER, INC.
Inventor： Kenji Yasui , Makoto Suzuki , Mitsuru Sugawara , Kinya Hasegawa
CPC classification number: A61B3/1225 , A61B3/0025 , A61B3/0058 , A61B3/0091 , A61B3/024 , A61B3/1025
Abstract: 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.
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公开(公告)号：US11129527B2
公开(公告)日：2021-09-28
申请号：US16306694
申请日：2017-06-07
Applicant: QD Laser, Inc.
Inventor： Mitsuru Sugawara , Makoto Suzuki , Kinya Hasegawa
Abstract: 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.
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公开(公告)号：US10761329B2
公开(公告)日：2020-09-01
申请号：US16062424
申请日：2016-11-28
Applicant: QD LASER, INC.
Inventor： Mitsuru Sugawara , Makoto Suzuki , Michio Arai
Abstract: 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.
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公开(公告)号：US11019995B2
公开(公告)日：2021-06-01
申请号：US16471274
申请日：2017-12-19
Applicant: QD Laser, Inc.
Inventor： Hironori Miyauchi , Kenji Yasui , Mitsuru Sugawara , Makoto Suzuki
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US10659743B2
公开(公告)日：2020-05-19
申请号：US15579759
申请日：2016-04-26
Applicant: QD LASER, INC. , THE UNIVERSITY OF TOKYO
Inventor： Yasuhiko Arakawa , Mitsuru Sugawara , Makoto Suzuki , Shuichi Tojo
Abstract: 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.
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公开(公告)号：US10444519B2
公开(公告)日：2019-10-15
申请号：US15579750
申请日：2016-04-26
Applicant: QD LASER, INC. , THE UNIVERSITY OF TOKYO
Inventor： Yasuhiko Arakawa , Mitsuru Sugawara , Makoto Suzuki , Michio Arai
IPC: G02B26/08 , G02B27/02 , G02B27/09 , G02B17/06 , G09G5/00 , G09G3/00 , G09G3/34 , H04N5/74 , G02B27/01 , G02B27/00 , G02B26/10
Abstract: 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.
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公开(公告)号：US20190274544A1
公开(公告)日：2019-09-12
申请号：US16334164
申请日：2017-09-21
Applicant: TOMEY CORPORATION , QD Laser, Inc.
Inventor： Mitsuru Sugawara , Makoto Suzuki , Hideo Mukai
Abstract: A scanning laser ophthalmoscope may include: a light source configured to emit laser light; a scanner configured to scan the laser light emitted from the light source two-dimensionally; a guide mirror configured to guide the laser light scanned by the scanner to a fundus of an eye of a subject; a guide mirror holder configured to hold the guide mirror in a predetermined positional relationship with the eye of the subject; a light receiver configured to receive reflected light of the laser light reflected on the fundus; and an image generator configured to generate a fundus image based on the reflected light received by the light receiver. The guide mirror may be disposed on a path connecting the scanner and the fundus of the eye of the subject, and disposed in front of the eye of the subject. The scanner may be disposed at the guide mirror holder.
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公开(公告)号：US10088682B2
公开(公告)日：2018-10-02
申请号：US14893278
申请日：2014-04-25
Applicant: QD LASER, INC. , THE UNIVERSITY OF TOKYO
Inventor： Yasuhiko Arakawa , Mitsuru Sugawara , Makoto Suzuki
IPC: G09G5/00 , G02B27/01 , H04N3/30 , H04N5/66 , G09G3/02 , G02C11/00 , G09G5/10 , H04N9/31 , G02B26/10
Abstract: The present invention is an image projection device that includes: a light source 12 that emits a laser beam 34; a scanning mirror 14 that two-dimensionally scans the laser beam 34 emitted from the light source 12; and a projection mirror 24 that projects scanned light onto a retina 26 of an eyeball 22 of a user to project an image onto the retina 26, the scanned light being composed of the laser beam 34 that has been scanned by the scanning mirror 14, wherein the laser beam 34 emitted from the light source 12 is scanned by using a part of an operating range of the scanning mirror 14.
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公开(公告)号：US11445903B2
公开(公告)日：2022-09-20
申请号：US16650508
申请日：2018-08-23
Applicant: QD LASER, INC.
Inventor： Seiji Morino , Makoto Suzuki , Mitsuru Sugawara , Kinya Hasegawa
Abstract: Provided is a vision test device including: a projection unit 10 that projects an image on a retina of a subject with use of a laser beam 50 by 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.
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