Patents by Inventor Chao Yung Yeh

Chao Yung Yeh 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: 11504802
    Abstract: A multifunctional laser processing apparatus includes a hollow milling shaft, a light path tool holder, a tool-holder-type melting module, a laser light source, and a temperature sensor. The hollow milling shaft includes a first light path channel and a connection portion. The light path tool holder can be connected to the connection portion. The light path tool holder has a second light path channel communicating with the first light path channel. The tool-holder-type melting module can be connected to the connection portion. The tool-holder-type melting module has a third light path channel communicating with the first light path channel. The laser light source is configured to emit a laser light beam toward the first light path channel. The temperature sensor is disposed on an outer surface of the hollow milling shaft and is configured to sense a temperature of a work piece during a multifunctional processing process.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: November 22, 2022
    Assignee: METAL INDUSTRIES RESEARCH & DEVELOPMENT CENTRE
    Inventors: Yu-Ting Lyu, Hsiang-Pin Wang, Po-Chi Hu, Chao-Yung Yeh
  • Publication number: 20200180070
    Abstract: A multifunctional laser processing apparatus includes a hollow milling shaft, a light path tool holder, a tool-holder-type melting module, a laser light source, and a temperature sensor. The hollow milling shaft includes a first light path channel and a connection portion. The light path tool holder can be connected to the connection portion. The light path tool holder has a second light path channel communicating with the first light path channel. The tool-holder-type melting module can be connected to the connection portion. The tool-holder-type melting module has a third light path channel communicating with the first light path channel. The laser light source is configured to emit a laser light beam toward the first light path channel. The temperature sensor is disposed on an outer surface of the hollow milling shaft and is configured to sense a temperature of a work piece during a multifunctional processing process.
    Type: Application
    Filed: December 2, 2019
    Publication date: June 11, 2020
    Inventors: Yu-Ting LYU, Hsiang-Pin WANG, Po-Chi HU, Chao-Yung YEH
  • Patent number: 10091493
    Abstract: Device and method for scanning an object outline image are provided. The scanning device includes a light source, an optical sensor and a processor. The scanning method includes: providing a polarized projection light beam; projecting the polarized projection light beam to an object, and correspondingly reflecting a polarized reflection light beam by the object according to the polarized projection light beam; capturing an image of the polarized reflection light beam; calculating polarization state of target according to the polarized projection light beam and the polarized reflection light beam, the polarization state of target having a plane angle from normal projection and a corresponding point position; and restoring an outline image of the object according to the polarization state of target.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: October 2, 2018
    Assignee: Metal Industries Research & Development Centre
    Inventors: Chia-Ming Jan, Chung-Li Tsai, Po-Chi Hu, Chao-Yung Yeh, Chi-Cheng Yang
  • Publication number: 20180178322
    Abstract: A laser process device includes a processing machinery for processing a workpiece, a laser source for emitting a laser beam to the workpiece and a modulating lens group. The modulating lens group can selectively modulate the laser beam for laser processing the workpiece respectively, like pre-heating, forming process or post treatment, so the modulating lens group can improve process efficiency of the processing machinery.
    Type: Application
    Filed: December 28, 2016
    Publication date: June 28, 2018
    Inventors: Yu-Ting Lu, Chao-Yung Yeh, Chiu-Feng Lin, Ying-Cheng Lu
  • Publication number: 20170163968
    Abstract: Device and method for scanning an object outline image are provided. The scanning device includes a light source, an optical sensor and a processor. The scanning method includes: providing a polarized projection light beam; projecting the polarized projection light beam to an object, and correspondingly reflecting a polarized reflection light beam by the object according to the polarized projection light beam; capturing an image of the polarized reflection light beam; calculating polarization state of target according to the polarized projection light beam and the polarized reflection light beam, the polarization state of target having a plane angle from normal projection and a corresponding point position; and restoring an outline image of the object according to the polarization state of target.
    Type: Application
    Filed: December 28, 2015
    Publication date: June 8, 2017
    Inventors: Chia-Ming JAN, Chung-Li TSAI, Po-Chi HU, Chao-Yung YEH, Chi-Cheng YANG
  • Patent number: 9616523
    Abstract: A laser processing device has a laser source and a high speed vibration unit. The laser source has a laser-emitting end being capable of emitting a laser beam adapted to process a workpiece. The high speed vibration unit is located on a moving path of the laser beam and is capable of vibrating periodically along a direction parallel to the moving path of the laser beam such that the focusing point of the laser beam moves periodically on the workpiece at high speed. The laser processing device with the fast moving focusing point is able to efficiently process parts of the workpiece at specific depths. Therefore, product quality and production rate are increased.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: April 11, 2017
    Assignee: METAL INDUSTRIES RESEARCH & DEVELOPMENT CENTRE
    Inventors: Chen-Bin Chou, Chao-Yung Yeh
  • Patent number: 9364931
    Abstract: A laser-assisted machining device includes a spindle, a beam splitting module and a cutting tool. The spindle has a chamber, and multiple exit holes. The beam splitting module is disposed in the spindle and includes a beam splitter for splitting a main laser beam into a plurality of secondary laser beams that are directed into the chamber, and an outer reflecting unit mounted in the chamber for reflecting the secondary laser beams out of the spindle through the exit holes. The cutting tool is fixedly mounted on the spindle, for machining a workpiece, and includes multiple cutting teeth. The secondary laser beams maintain constant irradiation on multiple areas of the workpiece during rotation of the spindle.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: June 14, 2016
    Assignee: Metal Industries Research and Development Centre
    Inventors: Yin Chuang, Chao-Yung Yeh, Chung-Li Tsai, Yu-Ting Lyu
  • Publication number: 20160101492
    Abstract: A laser-assisted machining device includes a spindle, a beam splitting module and a cutting tool. The spindle has a chamber, and multiple exit holes. The beam splitting module is disposed in the spindle and includes a beam splitter for splitting a main laser beam into a plurality of secondary laser beams that are directed into the chamber, and an outer reflecting unit mounted in the chamber for reflecting the secondary laser beams out of the spindle through the exit holes. The cutting tool is fixedly mounted on the spindle, for machining a workpiece, and includes multiple cutting teeth. The secondary laser beams maintain constant irradiation on multiple areas of the workpiece during rotation of the spindle.
    Type: Application
    Filed: October 9, 2014
    Publication date: April 14, 2016
    Inventors: Yin CHUANG, Chao-Yung YEH, Chung-Li TSAI, Yu-Ting LYU
  • Publication number: 20150151382
    Abstract: A laser processing device has a laser source and a high speed vibration unit. The laser source has a laser-emitting end being capable of emitting a laser beam adapted to process a workpiece. The high speed vibration unit is located on a moving path of the laser beam and is capable of vibrating periodically along a direction parallel to the moving path of the laser beam such that the focusing point of the laser beam moves periodically on the workpiece at high speed. The laser processing device with the fast moving focusing point is able to efficiently process parts of the workpiece at specific depths. Therefore, product quality and production rate are increased.
    Type: Application
    Filed: October 23, 2014
    Publication date: June 4, 2015
    Inventors: Chen-Bin CHOU, Chao-Yung YEH
  • Patent number: 6044186
    Abstract: A fiber optic switching apparatus includes a first fiber alignment head having a V-groove formed therein. A first optical fiber is mounted in the V-groove with an end of the first optical fiber being arranged to be spaced apart from an end of the V-groove. A second fiber alignment head is arranged to be adjacent the first fiber alignment head. The second fiber alignment head includes a switching member arranged to be pivotable between a first position and a second position. A second optical fiber is connected to the switching member with the second optical fiber being arranged to have an end extending into the V-groove such that the ends of the first and second optical fibers are in longitudinal alignment when the switching member is in its first position and being out of alignment when the switching member is in its second position.
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: March 28, 2000
    Assignee: Lightwave Link
    Inventors: Chin L. Chang, Chao Yung Yeh, Michel K. Smith, Keyth M. Smith, Ricardo A. Rosette, Robert Straede
  • Patent number: 5940554
    Abstract: A method for coupling light from an input optical fiber into a selected one of a plurality of output optical fibers includes the steps of forming the input optical fiber to include a length of beam expanded fiber, arranging the plurality of output optical fibers in an array and moving an end of the input optical fiber into alignment with a selected one of the plurality of output optical fibers.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: August 17, 1999
    Assignee: Lightwave Link, Inc.
    Inventors: Chin L. Chang, Chao Yung Yeh, Michel K. Smith, Keyth M. Smith, Ricardo A. Rosette, Robert Straede