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：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).

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

IPC: A61B3/10 ,  A61B3/12 ,  A61B3/00 ,  A61B3/024

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.

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

IPC: A61B3/032 ,  A61B3/00 ,  A61B3/024 ,  A61B3/028 ,  G02B27/01 ,  G02B27/02 ,  G02B27/18 ,  G06F9/54

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.