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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
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.
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公开(公告)号：US20180373041A1
公开(公告)日：2018-12-27
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：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
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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公开(公告)号：US20160336480A1
公开(公告)日：2016-11-17
申请号：US15110991
申请日：2015-01-07
Applicant: QD LASER, INC. , UNIVERSITY OF SHEFFIELD
Inventor： Kenichi NISHI , Takeo KAGEYAMA , Keizo TAKEMASA , Mitsuru SUGAWARA , Richard HOGG , Siming CHEN
Abstract: A semiconductor light-emitting element includes: a lower clad layer 12 that is provided on a substrate 10; an active layer 20 that is provided on the lower clad layer 12 and includes a quantum well layer 24 and a plurality of quantum dots 28 sandwiching a second barrier layer 22b together with the quantum well layer 24; and an upper clad layer 14 that is provided on the active layer 20, wherein a distance D between the quantum well layer 24 and the plurality of quantum dots 28 is smaller than an average of distances X between centers of the plurality of quantum dots 28.
Abstract translation: 半导体发光元件包括：设置在基板10上的下包层12; 设置在下包层12上的有源层20，包括量子阱层24和与量子阱层24一起夹着第二阻挡层22b的多个量子点28; 以及设置在有源层20上的上覆盖层14，其中量子阱层24与多个量子点28之间的距离D小于多个量子点28的中心之间的距离X的平均值。
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公开(公告)号：US20190353897A1
公开(公告)日：2019-11-21
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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Patent Agency Ranking
公开(公告)号：US20190133437A1
公开(公告)日：2019-05-09
申请号：US16306694
申请日：2017-06-07
Applicant: QD Laser, Inc.
Inventor： Mitsuru SUGAWARA , Makoto SUZUKI , Kinya HASEGAWA
Abstract: A terminal device includes an image data holding unit that holds examination image data, an image output processing unit that outputs the examination image data to a visual field/visual acuity examination device, a display unit that displays an image, and a display control unit that generates an examination image based on the examination image data and displays the examination image on the display unit. The visual field/visual acuity examination device includes a light source unit that emits a light beam, an image input unit that inputs the examination image data from the terminal device, a control unit that generates an image light beam based on the input examination image data and controls emission of the image light beam from the light source unit, a scanning mirror that scans the image light beam to generate an examination image light beam, and a projection unit that projects the examination image light beam as the examination image on an eyeball of a test subject. The examination image data includes visual field examination image data of an image that is divided into a plurality of regions including identifiers, and visual acuity examination image data of an image including a visual target image of a visual target.
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公开(公告)号：US20180373024A1
公开(公告)日：2018-12-27
申请号：US16062384
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 irradiates a pupil 40 of an eyeball 36 of a user with an image light beam 34a forming an image to project the image onto a retina 38 of the eyeball; a detection unit that detects a direction 52 in 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.
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公开(公告)号：US20180164595A1
公开(公告)日：2018-06-14
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
CPC classification number: G02B27/024 , G02B17/06 , G02B26/105 , G02B27/0093 , G02B27/017 , G02B27/0977 , G02B2027/0187 , G09G3/002 , G09G3/346 , G09G5/00
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 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 system based on a detection result of the reflected light by the light detector.
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公开(公告)号：US20200275833A1
公开(公告)日：2020-09-03
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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公开(公告)号：US20200229694A1
公开(公告)日：2020-07-23
申请号：US16650798
申请日：2018-09-12
Applicant: QD LASER, INC.
Inventor： Kenji YASUI , Makoto SUZUKI , Mitsuru SUGAWARA , Kinya HASEGAWA
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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