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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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Patent Agency Ranking
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：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
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.
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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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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
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.
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公开(公告)号：US10409146B2
公开(公告)日：2019-09-10
申请号：US16306966
申请日：2017-06-08
Applicant: QD Laser, Inc.
Inventor： Mitsuru Sugawara , Makoto Suzuki , Kinya Hasegawa
IPC: G03B21/20 , G02B27/02 , G09G5/38 , G16H50/00 , A61B3/024 , A61B3/032 , H04N9/31 , G02B27/01 , G02B26/12 , G09G3/02
Abstract: A terminal device (300) includes a projection target holding unit that holds projection information to be projected by an image projection device (200), 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 (202G) 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 (200). The image projection device (200) includes a light source unit that emits a light beam, an image input unit that inputs the image data (D) from the terminal device (300), 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 (202G) represented by the image data (D).
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