公开(公告)号：US20220179210A1

公开(公告)日：2022-06-09

申请号：US17338954

申请日：2021-06-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunil KIM ,  Wontaek Seo ,  Geeyoung Sung ,  Hoon Song ,  Hongseok Lee

IPC: G02B27/01

Abstract: A light combiner combines first light provided by a light source with second light containing an image of an exterior environment and provides the combined light to a user. The light combiner includes a transmissive optical device comprising a first surface on which the first light is incident and a second surface facing the first surface, and branching the first light in a plurality of directions to pass through the second surface, and a holographic optical device on a side of the transmissive optical device facing the second surface and spaced apart from the transmissive optical device. The holographic optical device diffracts light rays branched and transmitted by the transmissive optical device in the plurality of directions, to be respectively focused at a plurality of focal points different from each other and corresponding to the directions, and transmits the second light therethrough to travel toward the plurality of focal points.

公开(公告)号：US11334747B2

公开(公告)日：2022-05-17

申请号：US17037102

申请日：2020-09-29

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Korea University Research and Business Foundation

Inventor： Yuntae Kim ,  Sanghoon Sull ,  Geeyoung Sung ,  Hongseok Lee ,  Myungjae Jeon

IPC: G06K9/00 ,  G06F3/01 ,  G06N3/04 ,  G06T19/00

Abstract: An augmented reality (AR) device and a method of predicting a pose in the AR device is provided. In the augmented reality (AR) device inertial measurement unit (IMU) values corresponding to the movement of the AR device are obtained at an IMU rate, intermediate 6-degrees of freedom (6D) poses of the AR device are estimated based on the IMU values and images around the AR device via a visual-inertial simultaneous localization and mapping (VI-SLAM) module, and a pose prediction model for predicting relative 6D poses of the AR device is generated by performing learning by using a deep neural network.

公开(公告)号：US20220082832A1

公开(公告)日：2022-03-17

申请号：US17190080

申请日：2021-03-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bongsu SHIN ,  Geeyoung Sung ,  Sunil Kim ,  Seokil Moon ,  Wontaek Seo ,  Daeho Yang ,  Changkun Lee ,  Hongseok Lee

IPC: G02B27/01

Abstract: An image display device includes a main light source configured to emit a first light; a display panel configured to modulate the first light to add image information to the first light; a holographic optical element (HOE) configured to diffract the first light emitted from the display panel to make the first light travel to a first region to generate a main image; a first optical system provided on a traveling path of the first light between the main light source and the HOE, the first optical system being configured to change the traveling path of the first light to be incident on the HOE along a first path; an auxiliary light source configured to emit a second light; and a second optical system provided on a traveling path of the second light, the second optical system being configured to change a traveling path of the second light to be incident on the HOE along a second path different from the first path.

公开(公告)号：US20220082831A1

公开(公告)日：2022-03-17

申请号：US17187158

申请日：2021-02-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Wontaek SEO ,  Bongsu Shin ,  Daeho Yang ,  Changkun Lee ,  Sunil Kim ,  Geeyoung Sung

IPC: G02B27/01 ,  H04N13/339 ,  H04N13/337 ,  G02B27/00

Abstract: Provided is a multi-image display apparatus including a light source configured to emit light, a spatial light modulator configured to modulate the light emitted by the light source and generate image light, a first optical system configured to deliver the image light through a first light path and a second light path that is not parallel with the first light path, and a second optical system configured to deliver external light and the image light delivered through the second light path to a pupil of a viewer, through a third light path that is not parallel with the second light path, wherein the second optical system includes a steering optical device provided at a crossing point of the second light path and the third light path and configured to be two-axis rotated

公开(公告)号：US11150485B2

公开(公告)日：2021-10-19

申请号：US16591152

申请日：2019-10-02

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： Changkun Lee ,  Seokil Moon ,  Byoungho Lee ,  Wontaek Seo ,  Geeyoung Sung ,  Hongseok Lee

IPC: G02B30/00 ,  G02B30/22 ,  G02B3/10 ,  G02B27/10 ,  G06T19/00 ,  G02B27/01

Abstract: Provided is a multi-image display apparatus including an image forming device configured to form a first image, a first polarization plate configured to transmit a first polarization component of the first image provided from the image forming device, a second polarization plate configured to transmit a second polarization component of a second image that is provided from a path different from the first image, the second polarization component being different from the first polarization component, a screen configured to reflect and diffuse the first image, and transmit the second image, and a polarization selective lens configured to focus the first image having the first polarization component, and transmit the second image having the second polarization component without refraction.

公开(公告)号：US11048031B2

公开(公告)日：2021-06-29

申请号：US16281262

申请日：2019-02-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Changkun Lee ,  Sunil Kim ,  Wontaek Seo ,  Geeyoung Sung ,  Bongsu Shin ,  Hongseok Lee

IPC: G02B27/14 ,  G02B5/30 ,  F21V8/00 ,  G02B27/01

Abstract: A see-through display apparatus includes a display device, and an optical coupler configured to obtain a combined image by combining a first image from the display device with a second image from a path different from a path of the first image, and emit the obtained combined image. The optical coupler includes a first surface on which the first image is incident, a second surface on which the second image is incident, and an exit surface through which the combined image is emitted. A noise reduction prism is disposed between the display device and the optical coupler, and includes inclined surfaces configured to perform path conversion so that, among light of the first image, effective light of a predetermined angle range is incident on the optical coupler and noise light of a remaining angle range remaining from the predetermined angle range is not incident on the optical coupler.

公开(公告)号：US11030926B2

公开(公告)日：2021-06-08

申请号：US16784998

申请日：2020-02-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bongsu Shin ,  Yuntae Kim ,  Geeyoung Sung ,  Changkun Lee

IPC: G09G3/00 ,  G02B27/01 ,  G09G3/02 ,  G02B27/14

Abstract: An image display apparatus includes a display device configured to modulate light to form an image; a driver configured to adjust a position of the display device; a light transmitter comprising a focusing member and configured to change a direction of the light incident on the light transmitter to transmit the image to a preset location; and a processor configured to generate a driving signal according to image information and control the driver according to the driving signal, to adjust the position of the display device relative to the focusing member according to the driving signal.

公开(公告)号：US10884376B2

公开(公告)日：2021-01-05

申请号：US16415741

申请日：2019-05-17

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Geeyoung Sung ,  Joonku Hahn ,  Wontaek Seo ,  Hongseok Lee

IPC: G03H1/02 ,  G02B27/10 ,  G03H1/22 ,  H04N13/32 ,  G02B27/01 ,  G02B30/56

Abstract: A holographic display apparatus capable of steering a location of a viewing window according to a location of an observer is disclosed. The holographic display apparatus includes a light source; a spatial light modulator configured to modulate incident light and thereby reproduce the holographic image; a spatial filter configured to transmit only the holographic image; an eye tracker configured to track a pupil location of an observer; and a controller configured to adjust locations of the light source and the spatial filter in response to a change in the pupil location of the observer received from the eye tracker. The controller is configured to move the light source and the spatial filter simultaneously in the same direction by the same distance.

公开(公告)号：US10809664B2

公开(公告)日：2020-10-20

申请号：US15676336

申请日：2017-08-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Wontaek Seo ,  Juwon Seo ,  Geeyoung Sung ,  Yuntae Kim

IPC: G03H1/26 ,  G03H1/22 ,  G02B1/08 ,  G02B27/12 ,  G02B27/10 ,  G02B3/00 ,  G02B5/04 ,  G02B5/18 ,  H04N13/351 ,  G02B30/36

Abstract: A holographic display apparatus for providing an expanded viewing window is provided. The holographic display apparatus includes a spatial filter configured to allow a plurality of holographic images generated by 0th order or higher diffraction in a spatial light modulator to pass therethrough, and an image path conversion element configured to adjust a light path of the plurality of holographic images so that the plurality of holographic images are spaced apart from each other on a focal plane of an optical system.

公开(公告)号：US10663638B2

公开(公告)日：2020-05-26

申请号：US15000183

申请日：2016-01-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hongseok Lee ,  Geeyoung Sung ,  Joonyong Park ,  Hoon Song ,  Bongsu Shin ,  Yoonsun Choi

IPC: F21V8/00 ,  H04N13/32 ,  H04N13/356

Abstract: A two-dimensional (2D)/three-dimensional (3D) switchable backlight unit and an image display apparatus using the 2D/3D switchable backlight unit are provided. The 2D/3D switchable backlight unit includes: a light source unit; a first light guide plate, within which light from the light source unit is totally internally reflected; and a plurality of refraction patterns, each having a trapezoidal form. The light source unit may include a first light source and a second light source.