公开(公告)号：US20250044579A1

公开(公告)日：2025-02-06

申请号：US18709339

申请日：2022-11-04

Applicant: QD LASER, INC.

Inventor： Makoto SUZUKI ,  Seiji MORINO

IPC: G02B26/10 ,  G02B27/00 ,  G02B27/01

Abstract: An image projection device includes a projection unit converging image light beams emitted in different directions from a scanning unit at a first convergence point in user's eye, a reflection unit converging the image light beams at a second convergence point before the projection unit, an optical member being provided between the projection unit and the reflection unit, converting the image light beams into convergent light beams, and causing the image light beams to enter the projection unit as diffusion light beams a drive unit moving the reflection unit, a detection unit detecting a direction in which user's pupil has moved, and a drive control unit controlling the drive unit to move the reflection unit so that incident positions of the image light beams on the optical member change according to the direction in which the pupil has moved.

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

IPC: A61B3/032 ,  A61B3/00 ,  A61B3/024 ,  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：US20230199141A1

公开(公告)日：2023-06-22

申请号：US17926953

申请日：2022-01-12

Applicant: QD LASER, INC.

Inventor： Makoto SUZUKI ,  Seiji MORINO

IPC: H04N5/74 ,  G02B26/10 ,  G02B26/08

CPC classification number: H04N5/7491 ,  G02B26/101 ,  G02B26/0833

Abstract: An image projection device incudes a scanning unit that two-dimensionally scans a light beam emitted from a light source, a light guide member that is formed of a glass material through which light beams emitted from the scanning unit at different times pass, has reflection surfaces reflecting the light beams, converges the light beams reflected by the reflection surfaces at a first convergence point in the eye of the user, and then irradiates a retina of the user with the converged light beams, a first optical member that converges the light beams emitted from the scanning unit at a second convergence point before the light guide member and then causes the light beams to enter the light guide member, and a second optical member that is disposed at the second convergence point and causes the light beams to enter a last reflection surface as diffusion lights.

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：US20210173199A1

公开(公告)日：2021-06-10

申请号：US16619437

申请日：2018-09-12

Applicant: QD LASER, INC.

Inventor： Makoto SUZUKI ,  Megumi YAMAMOTO ,  Seiji MORINO ,  Chizuru KANEKO

IPC: G02B26/10 ,  G02B27/42 ,  A61B3/00 ,  A61B3/024 ,  A61B3/032 ,  H04N9/31

Abstract: An image projection device includes: a light source that emits a laser beam; a control unit that generates an image light beam, and controls emission of the image light beam; a scan unit that scans the image light beam to convert it into scan light; a first light converging unit that is disposed before a user's eye, converges the scan light at a first convergence point near a pupil, and then irradiates the retina with the scan light to project the image on the retina; and a second light converging unit that converges the scan light at a second convergence point before the first light converging unit, and then irradiates the first light converging unit with the scan light; wherein a scan angle of the scan light is substantially the same size as a convergence angle at which the scan light converges to the first convergence point.