Image projection device
    1.
    发明授权

    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.

    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.

    Visual sense examination device
    2.
    发明授权

    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.

    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.

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

    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.

    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.

    Image projection device
    6.
    发明授权

    公开(公告)号:US10659743B2

    公开(公告)日:2020-05-19

    申请号:US15579759

    申请日:2016-04-26

    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.

    Image projection device
    7.
    发明授权

    公开(公告)号:US10444519B2

    公开(公告)日:2019-10-15

    申请号:US15579750

    申请日:2016-04-26

    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.

    SCANNING LASER OPHTHALMOSCOPE
    8.
    发明申请

    公开(公告)号:US20190274544A1

    公开(公告)日:2019-09-12

    申请号:US16334164

    申请日:2017-09-21

    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.

    Vision test device
    10.
    发明授权

    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.

    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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