公开(公告)号：US10444519B2

公开(公告)日：2019-10-15

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

IPC: G02B26/08 ,  G02B27/02 ,  G02B27/09 ,  G02B17/06 ,  G09G5/00 ,  G09G3/00 ,  G09G3/34 ,  H04N5/74 ,  G02B27/01 ,  G02B27/00 ,  G02B26/10

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.

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

IPC: G02B27/01 ,  G02B27/02 ,  G09G3/00 ,  G09G5/38 ,  G02B26/10 ,  G03B21/20 ,  G06F3/01 ,  G09G3/34

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.