公开(公告)号：US11726346B2

公开(公告)日：2023-08-15

申请号：US17461501

申请日：2021-08-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hector Navarro Fructuoso ,  Atanas Boev ,  Panji Setiawan ,  Onay Urfalioglu

IPC: G02B27/00 ,  G02B30/40 ,  H04N13/167 ,  H04N13/144 ,  H04N13/351 ,  H04N13/398 ,  G02B7/06

CPC classification number: G02B30/40 ,  G02B7/06 ,  H04N13/144 ,  H04N13/167 ,  H04N13/351 ,  H04N13/398

Abstract: A focus tunable optical system includes a compound lens, which includes a plurality of focus tunable lenses. Further, the focus tunable optical system comprises a controller, which is configured to shift a focus of the compound lens from a first focal plane to a second focal plane. To this end, the controller is configured to apply, individually to each focus tunable lens of the plurality of the focus tunable lenses, a control signal having a first value for the first focal plane and a second value for the second focal plane.

公开(公告)号：US20170316570A1

公开(公告)日：2017-11-02

申请号：US15655841

申请日：2017-07-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Thoma Papadhimitri ,  Onay Urfalioglu ,  Hector Navarro Fructuoso ,  Jacek Konieczny

IPC: G06T7/557 ,  H04N5/247

Abstract: The disclosure relates to an image processing apparatus for determining a depth of a pixel of a reference image of a plurality of images representing a visual scene relative to a plurality of locations, wherein the plurality of locations define a two-dimensional grid with rows and columns and wherein the location of the reference image is associated with a reference row and a reference column of the grid. The image processing apparatus comprises a depth determiner configured to determine a first depth estimate on the basis of the reference image and a first subset of the plurality of images for determining the depth of the pixel of the reference image, wherein the images of the first subset are associated with locations being associated with a row of the grid different than the reference row and with a column of the grid different than the reference column.

公开(公告)号：US12210159B2

公开(公告)日：2025-01-28

申请号：US17504340

申请日：2021-10-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Atanas Boev ,  Hector Navarro Fructuoso ,  Bogdan Cihodariu Ionita ,  Panji Setiawan

IPC: G02B27/01 ,  G02B26/08 ,  G02B27/14

Abstract: An optical system for a display device for head mounting is described. In particular a Maxwellian display device, with an enlarged eye-box is described. The optical system includes a beam forming element configured to converge multiple sets of light beams into at least two points of convergence (e.g., on an exit pupil of the optical system or of the display device using the optical system), and at least one optical arrangement comprising an input for input light beams, at least one beam splitter and at least three reflectors. The at least one beam splitter and at least three reflectors are positioned to form the multiple sets of the light beams from the input light beams such that the multiple sets of the light beams have equally long beam paths from the input to the beam forming element. Each point of convergence is a convergent viewing point for a user, thus enlarging the eye-box.

公开(公告)号：US11630247B2

公开(公告)日：2023-04-18

申请号：US16842494

申请日：2020-04-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hector Navarro Fructuoso ,  Panji Setiawan

IPC: G02B3/14 ,  G02B27/01

Abstract: A focus tunable optical system includes a lens assembly. The lens assembly includes: focus tunable lenses (FTLs) coaxially disposed along an optical axis, each FTL contributing to an optical power of the lens assembly; and a controller configured to control the optical power of the lens assembly by applying to each FTL a respective control signal, thereby generating a periodic optical response of the respective FTL. The optical response of each FTL is substantially different from the optical response of any other FTL of the plurality of FTLs.

公开(公告)号：US11470289B2

公开(公告)日：2022-10-11

申请号：US17140808

申请日：2021-01-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hector Navarro Fructuoso ,  Bogdan Cihodariu Ionita ,  Atanas Boev ,  Panji Setiawan

IPC: H04N9/31 ,  G02B27/01 ,  G06F3/01

Abstract: The disclosure relates to a retinal display apparatus for generating an image on the retina of an eye of a user, wherein the retinal display apparatus is configured to generate multiple light beams, each light beam conveying an instance of the image, wherein the multiple light beams correspond one-to-one to multiple potential orientations of the eye of the user. Moreover, the disclosure relates to a corresponding method.

公开(公告)号：US11106052B2

公开(公告)日：2021-08-31

申请号：US16844841

申请日：2020-04-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hector Navarro Fructuoso ,  Atanas Boev ,  Panji Setiawan ,  Onay Urfalioglu

IPC: G02B27/00 ,  G02B30/40 ,  G02B3/14 ,  G02B7/06 ,  H04N13/144 ,  H04N13/167 ,  H04N13/351 ,  H04N13/398

Abstract: A focus tunable optical system includes a compound lens, which includes a plurality of focus tunable lenses. Further, the focus tunable optical system includes a controller, which is configured to shift a focus of the compound lens from a first focal plane to a second focal plane. To this end, the controller is configured to apply, individually to each focus tunable lens of the plurality of the focus tunable lenses, a control signal having a first value for the first focal plane and a second value for the second focal plane.

公开(公告)号：US11017546B2

公开(公告)日：2021-05-25

申请号：US16392284

申请日：2019-04-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hector Navarro Fructuoso ,  Manuel Martinez Corral ,  Genaro Saavedra Tortosa ,  Jorge Sola Pikabea ,  Juan Carlos Barreiro Hervas ,  Seokmin Hong

IPC: G06T7/593 ,  G06T3/40

Abstract: A depth detection device includes a stereo image recording device, a scaler and a depth determiner is provided. The stereo image recording device is configured to record a stereo image of a scene, and includes a first optical path for recording a first image of the stereo image, and a second optical path for recording a second image of the stereo image. The first optical path and the second optical path have different lengths. The scaler determines a scaling of the first image or of the second image, by minimizing differing lateral magnification of objects in the scene, and for performing the scaling. The depth determiner determines a depth map of the scene based upon the scaled stereo image.

公开(公告)号：US11202060B2

公开(公告)日：2021-12-14

申请号：US16791885

申请日：2020-02-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Atanas Boev ,  Hector Navarro Fructuoso ,  Panji Setiawan

IPC: H04N13/322 ,  G02B3/14 ,  H04N13/332

Abstract: A multifocal display device has a focus tunable lens (FTL) and a controller configured to shift a focus of the FTL from a first focal plane to a second focal plane by applying a compensated control signal to the FTL. The controller is configured to generate a current compensated control signal value, which is a value of the compensated control signal for a current point in time, based on one or more previous compensated control signal values, which are values of the compensated control signal at one or more previous points in time.

公开(公告)号：US10692235B2

公开(公告)日：2020-06-23

申请号：US15655841

申请日：2017-07-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Thoma Papadhimitri ,  Onay Urfalioglu ,  Hector Navarro Fructuoso ,  Jacek Konieczny

IPC: G06T7/557 ,  G06T7/593 ,  H04N5/247

Abstract: The disclosure relates to an image processing apparatus for determining a depth of a pixel of a reference image of a plurality of images representing a visual scene relative to a plurality of locations, wherein the plurality of locations define a two-dimensional grid with rows and columns and wherein the location of the reference image is associated with a reference row and a reference column of the grid. The image processing apparatus comprises a depth determiner configured to determine a first depth estimate on the basis of the reference image and a first subset of the plurality of images for determining the depth of the pixel of the reference image, wherein the images of the first subset are associated with locations being associated with a row of the grid different than the reference row and with a column of the grid different than the reference column.