公开(公告)号：US11575875B2

公开(公告)日：2023-02-07

申请号：US17551208

申请日：2021-12-15

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Biing-Seng Wu ,  Han-Yi Kuo ,  Bo-Han Lyu ,  Yin-Dong Lu ,  Kuan-Ming Chen ,  Meng-Ko Tsai

IPC: H04N13/254 ,  G06T7/521 ,  G02B27/42

Abstract: The present invention provides a projector including a laser module and a lens module, wherein the lens module includes a plurality of lens and a plurality of diffractive optical elements. In the operations of the projector, the laser module is arranged to generate at least one laser beam; each of the lenses is arranged to receive one of the at least one laser beam to generate a collimated laser beam; and the diffractive optical elements correspond to the lenses, respectively, and each of the diffractive optical elements is arranged to receive the collimated laser beam from the corresponding lens to generate an image. The images generated by the diffractive optical elements form a projected image of the projector. By using the projector of the present invention, the projected image may have higher resolution or field of view that is advantageous for the 3D sensing system.

公开(公告)号：US20200045296A1

公开(公告)日：2020-02-06

申请号：US16053760

申请日：2018-08-02

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Biing-Seng Wu ,  Yi-Nung Liu ,  Chin-Jung Tsai ,  Cheng-Hung Chi ,  Han-Yi Kuo ,  Kuan-Ming Chen

IPC: H04N13/271 ,  G06T7/55 ,  H04N13/254 ,  G06T7/521

Abstract: A depth sensing apparatus and an operation method thereof are provided. The depth sensing apparatus includes a projector, multiple cameras, and an image processing circuit. The projector includes a diffraction optical element (DoE) and a light source module. Rays of the light source module selectively pass through at least one of multiple projection style regions of the DoE so as to generate a projection pattern, and the projection pattern is projected to a field. The cameras respectively shoot the projection pattern projected to the field to obtain multiple images. The image processing circuit processes the images to obtain multiple depth maps. The image processing circuit at least merges the depth maps to generate a final depth map of the field.

公开(公告)号：US20190297315A1

公开(公告)日：2019-09-26

申请号：US15927474

申请日：2018-03-21

Applicant: Himax Imaging Limited ,  Himax Technologies Limited

Inventor： Biing-Seng Wu ,  Yu-Yu Sung ,  Huan-Pin Tseng

IPC: H04N13/271 ,  H04N13/204

Abstract: A structured-light (SL) method of dynamically generating a depth map includes moving a lens of an image capture device to a first position associated with first depth of field (DOF); capturing first reflected structured light with the first DOF, thereby resulting in a first image; processing the first image to generate a first depth map; moving the lens to a second position associated with second DOF, the second DOF being nearer the image capture device than the first DOF; capturing second reflected structured light with the second DOF, thereby resulting in a second image; processing the second image to generate a second depth map; and combining the first depth map and the second depth map to result in a combined depth map.

公开(公告)号：US20190068937A1

公开(公告)日：2019-02-28

申请号：US15860682

申请日：2018-01-03

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Biing-Seng Wu ,  Yu-Feng Yen ,  Han-Yi Kuo ,  Yin-Dong Lu ,  Kuan-Ming Chen

IPC: H04N9/31

CPC classification number: H04N9/3194 ,  H04N9/3147

Abstract: An equipment for testing a plurality of projector modules is provided, wherein the equipment includes a screen, a mask, at least one camera and a controller. The mask is positioned between the screen and the projector modules when the projector modules are within the equipment, and the mask is arranged to mask a plurality of projected images generated by the projector modules so that only a portion of projected images is allowed to be projected to the screen. The camera is arranged for capturing the portion of projected images on the screen. The controller is coupled to the camera, and is arranged for analyzing the captured images to control settings of the projector modules.

公开(公告)号：US11670226B1

公开(公告)日：2023-06-06

申请号：US17717293

申请日：2022-04-11

Applicant: Prilit Optronics, Inc. ,  Himax Technologies Limited

Inventor： Biing-Seng Wu ,  Tzung-Ren Wang ,  Hsin-Hung Chen

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0291 ,  G09G2310/08

Abstract: A micro-light-emitting diode (microLED) display panel includes a timing controller, and a plurality of drivers controlled by the timing controller and arranged in an order according to distance from the timing controller. Each driver includes a buffer that buffers a signal before being sent to a succeeding driver.

公开(公告)号：US20190289188A1

公开(公告)日：2019-09-19

申请号：US15922737

申请日：2018-03-15

Applicant: Himax Imaging Limited ,  Himax Technologies Limited

Inventor： Biing-Seng Wu ,  Yu-Yu Sung ,  Huan-Pin Tseng

IPC: H04N5/235 ,  G06T7/521 ,  H04N5/33

Abstract: A system of adjusting power of a light source includes an image sensor for capturing an image and obtaining gain and exposure; a target object detection unit that detects a target object in the image and finds a size of the target object; a distance determination unit that determines distance of the target object according to the size of the target object; a light energy measuring unit that measures light energy according to the gain and the exposure; and a controller that controllably adjusts power of the light source according to the distance and the light energy.

公开(公告)号：US11494926B1

公开(公告)日：2022-11-08

申请号：US17364920

申请日：2021-07-01

Applicant: HIMAX TECHNOLOGIES LIMITED ,  LIQXTAL TECHNOLOGY INC.

Inventor： Biing-Seng Wu ,  Pen-Hsin Chen ,  Ching-Wen Wang ,  Cheng-Che Tsai ,  Hung-Shan Chen ,  Yi Hung ,  Ming-Syuan Chen ,  Hsueh-Tsung Lu ,  Wu-Feng Chen

IPC: G06T7/521 ,  H04N5/232 ,  G01S17/89 ,  G01S17/86

Abstract: A method for performing hybrid depth detection with aid of an adaptive projector and associated apparatus are provided. The method includes: utilizing an image processing circuit to obtain distance information; utilizing the image processing circuit to determine a distance range according to the distance information; utilizing the image processing circuit to perform projection type selection to determine at least one selected projection type corresponding to the distance range among multiple predetermined projection types; utilizing the adaptive projector to perform projection of the at least one selected projection type to capture at least one corresponding image with a camera, and utilizing the image processing circuit to perform depth detection according to corresponding image to generate depth map; and utilizing the image processing circuit to selectively output the depth map as resultant depth map or perform depth data combination to generate combined depth map as resultant depth map.

公开(公告)号：US11026303B2

公开(公告)日：2021-06-01

申请号：US16175814

申请日：2018-10-30

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Biing-Seng Wu ,  Han-Yi Kuo ,  Kuan-Ming Chen ,  Li-Chiu Tsai ,  Yi-Nung Liu

IPC: H05B45/00 ,  G02B5/02 ,  G02B27/30 ,  G02B27/09

Abstract: An illuminator including a light source and an optical device is provided. The light source is configured to emit light. The optical device is configured to provide uniform illumination with at least one indicating mark after receiving light. The optical device includes a diffusing part and a directing part. The diffusing part is configured to provide uniform illumination. The directing part is configured to provide at least one indicating mark.

公开(公告)号：US10816858B2

公开(公告)日：2020-10-27

申请号：US16172879

申请日：2018-10-29

Applicant: Liqxtal Technology Inc. ,  HIMAX TECHNOLOGIES LIMITED

Inventor： Biing-Seng Wu ,  Hung-Shan Chen ,  Ming-Syuan Chen

IPC: G02F1/1343 ,  G02F1/1335 ,  G02F1/29

Abstract: An electrically tunable optical phase modulation element includes a first substrate, a second substrate, a liquid crystal layer, a transparent layer, a first compensation layer. The second substrate is opposite to the first substrate. The liquid crystal layer is between the first substrate and the second substrate. The transparent layer is between the first substrate and the liquid crystal layer. The transparent layer has a first portion and a second portion. The first compensation layer is in between the first portion and the second portion of the transparent layer. The first compensation layer has a flat surface adjacent the liquid crystal layer.

公开(公告)号：US20200099919A1

公开(公告)日：2020-03-26

申请号：US16142003

申请日：2018-09-26

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Biing-Seng Wu ,  Han-Yi Kuo ,  Bo-Han Lyu ,  Yin-Dong Lu ,  Kuan-Ming Chen ,  Meng-Ko Tsai

IPC: H04N13/254 ,  G02B27/42 ,  G06T7/521

Abstract: The present invention provides a projector including a laser module and a lens module, wherein the lens module includes a plurality of lens and a plurality of diffractive optical elements. In the operations of the projector, the laser module is arranged to generate at least one laser beam; each of the lenses is arranged to receive one of the at least one laser beam to generate a collimated laser beam; and the diffractive optical elements correspond to the lenses, respectively, and each of the diffractive optical elements is arranged to receive the collimated laser beam from the corresponding lens to generate an image. The images generated by the diffractive optical elements form a projected image of the projector. By using the projector of the present invention, the projected image may have higher resolution or field of view that is advantageous for the 3D sensing system.