Patents by Inventor Yeong Feng Wang

Yeong Feng Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11226198
    Abstract: A three-dimensional scanning system includes a projection light source, an image capturing apparatus, and a signal processing apparatus. The projection light source is configured to project a two-dimensional light to a target, where the two-dimensional light has a spatial frequency. The image capturing apparatus captures an image of the target illuminated with the two-dimensional light. The signal processing apparatus is coupled to the projection light source and the image capturing apparatus, to analyze a definition of the image of the two-dimensional light, where if the definition of the image of the two-dimensional light is lower than a requirement standard, the spatial frequency of the two-dimensional light is reduced.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: January 18, 2022
    Assignee: BENANO INC.
    Inventors: Liang-Pin Yu, Yeong-Feng Wang, Chun-Di Chen, Yun-Ping Kuan
  • Patent number: 11199394
    Abstract: An apparatus for three-dimensional shape measurement is provided, including a projection device, an image capture device, and an image processing device. The projection device sequentially projects a plurality of structured light beams on a scene during a first projection period and a second projection period. The mean level of the structured light beams during the first projection period is the same as the mean level of the structured light beams during the second projection period, and the frequency of the structured light beams during the first projection period is different from the frequency of the structured light beams during the second projection period. The image capture device captures an image of the scene within the projection time of each of the structured light beams. The image processing device obtains a three-dimensional shape of a to-be-measured object in the scene according to the images.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: December 14, 2021
    Assignee: BENANO INC.
    Inventors: Liang-Pin Yu, Yeong-Feng Wang, Chun-Di Chen
  • Publication number: 20210123723
    Abstract: An apparatus for three-dimensional shape measurement is provided, including a projection device, an image capture device, and an image processing device. The projection device sequentially projects a plurality of structured light beams on a scene during a first projection period and a second projection period. The mean level of the structured light beams during the first projection period is the same as the mean level of the structured light beams during the second projection period, and the frequency of the structured light beams during the first projection period is different from the frequency of the structured light beams during the second projection period. The image capture device captures an image of the scene within the projection time of each of the structured light beams. The image processing device obtains a three-dimensional shape of a to-be-measured object in the scene according to the images.
    Type: Application
    Filed: September 25, 2020
    Publication date: April 29, 2021
    Inventors: Liang-Pin Yu, Yeong-Feng Wang, Chun-Di Chen
  • Patent number: 10600174
    Abstract: An optical inspection apparatus includes a dichroic mirror, a first light source, and a first image capturing device. The dichroic mirror has a first side and a second side opposite to the first side. The dichroic mirror transmits a first light beam and reflects a second light beam. The wavelength of the second light beam is different from the wavelength of the first light beam. The first light source is disposed at the first side of the dichroic mirror and is configured to provide the first light beam to pass through the dichroic mirror. The first image capturing device is disposed at the second side of the dichroic mirror and is configured to detect the second light beam reflected from the dichroic mirror.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: March 24, 2020
    Assignee: Test Research, Inc.
    Inventor: Yeong-Feng Wang
  • Publication number: 20200056882
    Abstract: A three-dimensional scanning system includes a projection light source, an image capturing apparatus, and a signal processing apparatus. The projection light source is configured to project a two-dimensional light to a target, where the two-dimensional light has a spatial frequency. The image capturing apparatus captures an image of the target illuminated with the two-dimensional light. The signal processing apparatus is coupled to the projection light source and the image capturing apparatus, to analyze a definition of the image of the two-dimensional light, where if the definition of the image of the two-dimensional light is lower than a requirement standard, the spatial frequency of the two-dimensional light is reduced.
    Type: Application
    Filed: December 27, 2018
    Publication date: February 20, 2020
    Inventors: Liang-Pin Yu, Yeong-Feng Wang, Chun-Di Chen, Yun-Ping Kuan
  • Patent number: 9885561
    Abstract: An optical inspection system includes a first optical module and a second optical module. The first optical module includes a first light source having a first optical axis and a first image capturing unit having a first image capturing axis. The first optical axis and the first image capturing axis are symmetric relative a normal line of an inspection plane. A first angle is formed between the first optical axis and the first image capturing axis. The second optical module includes a second light source having a second optical axis and a second image capturing unit having a second image capturing axis. The second optical axis and the second image capturing axis are symmetric relative to the normal line. A second angle is formed between the second optical axis and the second image capturing axis and is different from the first angle.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: February 6, 2018
    Assignee: Test Research, Inc.
    Inventors: Liang-Pin Yu, Kuang-Pu Wen, Yeong-Feng Wang
  • Patent number: 9838612
    Abstract: An inspecting device for inspecting an inspection target is provided. The inspecting device includes a mono-color image-retrieving module, illuminating modules and a control module. The mono-color image-retrieving module is disposed above the inspection target with an optical axis orienting toward the inspection target. Each of the illuminating modules includes light-emitting elements of different colors. The control module controls the illuminating modules to sequentially generate illuminating lights both in an order of different colors and different incident angles to further control the mono-color image-retrieving module to sequentially retrieve mono-color images each in response to one illumination of the illuminating lights. The control module performs an inspection of the inspection target based on the mono-color images.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: December 5, 2017
    Assignee: Test Research, Inc.
    Inventors: Yeong-Feng Wang, Kuang-Pu Wen
  • Publication number: 20170186150
    Abstract: An optical inspection apparatus includes a dichroic mirror, a first light source, and a first image capturing device. The dichroic mirror has a first side and a second side opposite to the first side. The dichroic mirror transmits a first light beam and reflects a second light beam. The wavelength of the second light beam is different from the wavelength of the first light beam. The first light source is disposed at the first side of the dichroic mirror and is configured to provide the first light beam to pass through the dichroic mirror. The first image capturing device is disposed at the second side of the dichroic mirror and is configured to detect the second light beam reflected from the dichroic mirror.
    Type: Application
    Filed: December 29, 2015
    Publication date: June 29, 2017
    Inventor: Yeong-Feng Wang
  • Patent number: 9686517
    Abstract: An optical system includes an optical apparatus. The optical apparatus is for projecting a first projection image to a plane or detecting a first detected image of the plane. The optical apparatus includes a first image device, and a lens group. The first image device has an image surface having an image center. The lens group is disposed between the first image device and the plane and has a lens axis surface and an optic center. The optic center and the image center form a connection line. The plane has a tangent surface to an intersecting point of the connection line. The lens axis surface, the tangent surface, and an extension surface of the image surface substantially intersect at a straight line.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: June 20, 2017
    Assignee: Test Research, Inc.
    Inventors: Liang-Pin Yu, Chih-Tien Tsai, Yeong-Feng Wang
  • Publication number: 20170019578
    Abstract: An inspecting device for inspecting an inspection target is provided. The inspecting device includes a mono-color image-retrieving module, illuminating modules and a control module. The mono-color image-retrieving module is disposed above the inspection target with an optical axis orienting toward the inspection target. Each of the illuminating modules includes light-emitting elements of different colors. The control module controls the illuminating modules to sequentially generate illuminating lights both in an order of different colors and different incident angles to further control the mono-color image-retrieving module to sequentially retrieve mono-color images each in response to one illumination of the illuminating lights. The control module performs an inspection of the inspection target based on the mono-color images.
    Type: Application
    Filed: July 13, 2015
    Publication date: January 19, 2017
    Inventors: Yeong-Feng WANG, Kuang-Pu WEN
  • Patent number: 9485491
    Abstract: An optical system includes at least one optical apparatus. The optical apparatus includes a first light source, a second light source, and a dynamic switch. The first light source is configured for providing a first light beam. The second light source is configured for providing a second light beam. The dynamic switch includes a plurality of mirrors arranged in an array manner. Each of the mirrors has a first tilt angle and a second tilt angle. The first light beam and the second light beam impinge on the dynamic switch from different directions. The dynamic switch reflects the first light beam to a desired position when the mirrors are at the first tilt angles, and reflects the second light beam to the desired position when the mirrors are at the second tilt angles.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: November 1, 2016
    Assignee: Test Research, Inc.
    Inventors: Liang-Pin Yu, Yeong-Feng Wang
  • Patent number: 9410370
    Abstract: An aspect of the invention provides an electric curtain. The electric curtain includes a sunlight detector for obtaining light information of sunlight and a light modulation device capable of receiving the sunlight and for adjusting an emergent angle of the sunlight to refract the sunlight to a ceiling of a room.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: August 9, 2016
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Yeong-Feng Wang, Ming-Wei Tsai, Keh-Su Chang, Rong-Chang Liang
  • Publication number: 20160173836
    Abstract: An optical system includes an optical apparatus. The optical apparatus is for projecting a first projection image to a plane or detecting a first detected image of the plane. The optical apparatus includes a first image device, and a lens group. The first image device has an image surface having an image center. The lens group is disposed between the first image device and the plane and has a lens axis surface and an optic center. The optic center and the image center form a connection line. The plane has a tangent surface to an intersecting point of the connection line. The lens axis surface, the tangent surface, and an extension surface of the image surface substantially intersect at a straight line.
    Type: Application
    Filed: December 15, 2014
    Publication date: June 16, 2016
    Inventors: Liang-Pin YU, Chih-Tien TSAI, Yeong-Feng WANG
  • Publication number: 20160169812
    Abstract: An optical inspection system includes a first optical module and a second optical module. The first optical module includes a first light source having a first optical axis and a first image capturing unit having a first image capturing axis. The first optical axis and the first image capturing axis are symmetric relative a normal line of an inspection plane. A first angle is formed between the first optical axis and the first image capturing axis. The second optical module includes a second light source having a second optical axis and a second image capturing unit having a second image capturing axis. The second optical axis and the second image capturing axis are symmetric relative to the normal line. A second angle is formed between the second optical axis and the second image capturing axis and is different from the first angle.
    Type: Application
    Filed: December 15, 2014
    Publication date: June 16, 2016
    Inventors: Liang-Pin YU, Kuang-Pu WEN, Yeong-Feng WANG
  • Publication number: 20160173853
    Abstract: An optical system includes at least one optical apparatus. The optical apparatus includes a first light source, a second light source, and a dynamic switch. The first light source is configured for providing a first light beam. The second light source is configured for providing a second light beam. The dynamic switch includes a plurality of mirrors arranged in an array manner. Each of the mirrors has a first tilt angle and a second tilt angle. The first light beam and the second light beam impinge on the dynamic switch from different directions. The dynamic switch reflects the first light beam to a desired position when the mirrors are at the first tilt angles, and reflects the second light beam to the desired position when the mirrors are at the second tilt angles.
    Type: Application
    Filed: December 15, 2014
    Publication date: June 16, 2016
    Inventors: Liang-Pin YU, Yeong-Feng WANG
  • Patent number: 9360678
    Abstract: The disclosure provides a light modulating module attached on a display side of a reflective display apparatus, including: a light source portion capable of providing an illumination light beam, wherein the illumination light beam is capable of being transmitted to the reflective display apparatus, and the reflective display apparatus is adapted to reflect the illumination light beam to generate an image light beam; and an image light modulating device is disposed above the reflective display apparatus and disposed in a light path of the image light beam, wherein the image light modulating device is capable of modulating a direction and/or a polarization state of the image light beam, and the image light beam is emitted to either a left or right eye of a viewer to form an autostereoscopic image perceivable to the viewer after the image light beam passes through the image light modulating device.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: June 7, 2016
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Yeong-Feng Wang, Ming-Wei Tsai, Keh-Su Chang, Rong-Chang Liang
  • Patent number: 9322213
    Abstract: An aspect of the invention provides a display with an adjustable focus mechanism. The display with an adjustable focus mechanism includes a display panel for emitting a plurality of rays to form an image; a light modulation device for receiving the rays from the display panel and adjusting an emergent angle of each ray; and a controller for providing a control signal to drive the light modulation device by estimating the emergent angle of the each of the rays according to an eyesight data of a user and a distance between the user and the display.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: April 26, 2016
    Assignee: Delta Electronics, Inc.
    Inventors: Yeong-Feng Wang, Ming-Wei Tsai, Keh-Su Chang, Rong-Chang Liang
  • Patent number: 9201247
    Abstract: Disclosed is an image display apparatus, including a display device displaying right-eye images and left-eye images. A light-modulating device attached to the display device; and a temperature sensor monitoring the light-modulating device temperature. The light-modulating device deflects the right-eye and left-eye images to an observer's right and left eyes respectively without a temperature variation in the temperature sensor.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: December 1, 2015
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Yeong-Feng Wang, Ching-Tung Hsu, Yen-I Chou, Chia-Yen Lee, Meng-Han Liu, Ming-Wei Tsai
  • Patent number: 9154751
    Abstract: A display includes a light source, a first color wheel, a second color wheel, an actuator, a controller, and a light modulator. The light source is for providing a light beam. The first color wheel includes plural primary-color filtering areas, and the second color wheel includes plural left or right eye filtering areas. The actuator rotates the first color wheel and the second color wheel. The controller is for controlling the rotations of the first color wheel and the second color wheel, such that the light beam passing through the first color wheel and the second color wheel is filtered to plural left or right eye primary-color light beams with different spectra. The light modulator is for modulating the left or right primary-color light beams and projecting the modulated left or right primary-color light beams onto a screen to display an image.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: October 6, 2015
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Yeong-Feng Wang, Meng-Han Liu
  • Publication number: 20150185502
    Abstract: An aspect of the invention provides a display with an adjustable focus mechanism. The display with an adjustable focus mechanism includes a display panel for emitting a plurality of rays to form an image; a light modulation device for receiving the rays from the display panel and adjusting an emergent angle of each ray; and a controller for providing a control signal to drive the light modulation device by estimating the emergent angle of the each of the rays according to an eyesight data of a user and a distance between the user and the display.
    Type: Application
    Filed: March 13, 2015
    Publication date: July 2, 2015
    Inventors: Yeong-Feng WANG, Ming-Wei TSAI, Keh-Su CHANG, Rong-Chang LIANG