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

IPC: A61B3/12 ,  A61B3/10 ,  A61B3/00

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.

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.

公开(公告)号：US20180184059A1

公开(公告)日：2018-06-28

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

IPC: H04N9/31 ,  G02B26/08 ,  G02B27/01 ,  G02B27/10

CPC classification number: H04N9/3194 ,  G02B26/0833 ,  G02B26/101 ,  G02B27/0172 ,  G02B27/108 ,  G02B2027/0178 ,  H04N9/312 ,  H04N9/3135

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.

公开(公告)号：US12038620B2

公开(公告)日：2024-07-16

申请号：US17593575

申请日：2020-03-25

Applicant: QD Laser, Inc.

Inventor： Makoto Suzuki ,  Kenji Yasui ,  Kazutaka Saito

IPC: G02B7/02 ,  G02B7/16 ,  G02B26/10 ,  G03B21/20

CPC classification number: G02B7/023 ,  G02B7/16 ,  G02B26/105 ,  G03B21/2033

Abstract: An image relay device that projects laser light representing an image emitted from a projection device onto the retina is provided. The image relay device includes a projection device, a first optical member, and a second optical member. The projection device includes a light source configured to emit laser light and a scan unit configured to scan the laser light based on image data. The first optical member receives an image light from the projection device and converts the image light which is a parallel light, to light beams of convergent light. The second optical member converts the light beams output from the first optical member into parallel light.

公开(公告)号：US20220344906A1

公开(公告)日：2022-10-27

申请号：US17724570

申请日：2022-04-20

Applicant: DENSO CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA ,  MIRISE Technologies Corporation ,  QD LASER, Inc.

Inventor： Hiroyuki TARUMI ,  Yuki KAMATA ,  Keizo TAKEMASA ,  Kenichi NISHI ,  Yutaka OHNISHI

IPC: H01S5/34 ,  H01S5/343

Abstract: An optical semiconductor device includes an active layer having a plurality of quantum dot layers. The plurality of quantum dot layers includes at least one quantum dot player doped with a p-type impurity. Further, the plurality of quantum dot layers includes at least two quantum dot layers having different emission wavelengths and different p-type impurity concentrations.

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

IPC: A61B3/032 ,  A61B3/00 ,  A61B3/024 ,  A61B3/028 ,  A61B3/036

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.

公开(公告)号：US10924716B2

公开(公告)日：2021-02-16

申请号：US16340124

申请日：2017-09-26

Applicant: QD LASER, INC.

Inventor： Makoto Suzuki ,  Kinya Hasegawa

IPC: H04N9/31 ,  G02B17/08 ,  G02B5/20

Abstract: An image projection device includes: an optical component reflecting an image light beam that has been converted into a substantially parallel light by a lens and scanned by a scanner; a projection mirror irradiating a retina with the reflected image light beam; a light beam blocking unit located on a light path between the scanner and the lens and having an aperture, wherein the projection mirror has a first region and a second region having a larger light condensing power than the first region, and a light condensing power in a third region, reflecting a light beam to be emitted to the first region of the scanned image light beam, of the optical component is greater than that in a fourth region, reflecting a light beam to be emitted to the second region of the scanned image light beam, of the optical component.

公开(公告)号：US20200342582A1

公开(公告)日：2020-10-29

申请号：US16318263

申请日：2017-08-07

Applicant: QD LASER, INC.

Inventor： Seiji MORINO ,  Makoto SUZUKI ,  Manabu ISHIMOTO

IPC: G06T7/00 ,  G06T7/60 ,  G06T3/00 ,  H04N9/31 ,  G02B27/01

Abstract: An image inspection device includes: a mounting unit on which an image projection device that directly projects an image on a retina of a user is to be mounted; a condensing lens configured to condense a light beam emitted from the image projection device mounted on the mounting unit; and a target projection unit on which an inspection image is to be projected by irradiation with the light beam condensed by the condensing lens; and an inspection unit configured to inspect the inspection image projected on the target projection unit.

公开(公告)号：US20200209629A1

公开(公告)日：2020-07-02

申请号：US16619053

申请日：2018-03-14

Applicant: QD LASER, INC.

Inventor： Makoto SUZUKI ,  Megumi YAMAMOTO

IPC: G02B27/01 ,  G02B17/06 ,  H04N9/31

Abstract: An image projection device includes: a light source 10 that emits a laser beam 40; a control unit 32 that generates the laser beam 40 based on input image data, and controls emission of the laser beam 40 from the light source 10; a scan mirror 14 that scans the laser beam 40 emitted from the light source 10 to emit a scanning light 42; and a projection unit 16 that irradiates a retina 52 of an eye 50 of a user with the scanning light 42 to project an image on the retina 52, wherein the projection unit 16 includes an optical system 18 which converges the scanning light 42 emitted from the scan mirror 14 on a virtual plane 62, which is located outside the eye 50 of the user, at an angle substantially equal to a scan angle of the scan mirror 14, and an optical system 24, which converges the scanning light 42 that has passed through the virtual plane 62 on a virtual plane 64, which is located inside the eye 50 of the user and near a pupil 54, at an angle substantially equal to an emission angle from the virtual plane 62.

公开(公告)号：US20200085295A1

公开(公告)日：2020-03-19

申请号：US16471274

申请日：2017-12-19

Applicant: QD Laser, Inc.

Inventor： Hironori MIYAUCHI ,  Kenji YASUI ,  Mitsuru SUGAWARA ,  Makoto SUZUKI

IPC: A61B3/11 ,  A61B3/10 ,  A61B3/16

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.