Patents by Inventor Chi-Tang Hsieh

Chi-Tang Hsieh 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).

  • Publication number: 20230022341
    Abstract: A joint actuator of a robot including a driving device, a driving shaft, a reducer, a torsion sensor, and a dual encoder is provided. The driving shaft is connected to the driving device. The driving device is configured to drive the driving shaft to rotate. The reducer includes a motive power input component and a motive power output component. The motive power input component and the motive power output component are sleeved on the driving shaft. The motive power input component is disposed between the driving shaft and the motive power output component. The torsion sensor is connected to the motive power output component of the reducer. The dual encoder is connected to the driving device and the driving shaft. The driving device is located between the dual encoder and the reducer.
    Type: Application
    Filed: July 20, 2022
    Publication date: January 26, 2023
    Applicant: Coretronic Corporation
    Inventors: Kuang-Yao Liu, Ming-Ju Chang, Yung-Yu Chang, Chi-Tang Hsieh
  • Patent number: 11545598
    Abstract: A wavelength conversion element includes a substrate, an adhesion layer and a wavelength conversion material. The substrate has a bearing surface having an adhesion zone. The adhesion zone has a central portion and two edge portions respectively on two sides of the central portion. The adhesion layer is disposed on the adhesion zone and includes a first adhesive and a second adhesive. The first adhesive is disposed at the edge portions. The second adhesive is disposed at the central portion. Operating temperature of the first adhesive is lower than operating temperature of the second adhesive. Viscosity of the first adhesive is larger than viscosity of the second adhesive. The wavelength conversion material is fixed on the bearing surface by the first adhesive and the second adhesive. A projection apparatus having the wavelength conversion element is provided, and the durability of the wavelength conversion element and the projection apparatus is improved.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: January 3, 2023
    Assignee: Coretronic Corporation
    Inventors: Chia-Lun Tsai, Chi-Tang Hsieh
  • Patent number: 11520218
    Abstract: A phosphor wheel and a projection apparatus with the phosphor wheel are disclosed. A phosphor wheel includes a driving motor, a temperature interference element, a substrate and at least one light wavelength converting layer. The driving motor includes a motor body and a rotating member. The motor body drives the rotating member to rotate relative to the motor body along a rotation axis. The temperature interference element is connected with the rotating member and the substrate. The motor body drives the rotating member to rotate the temperature interference element and the substrate relative to the motor body. The substrate includes a first surface and a second surface disposed opposite to each other. The second surface is located between the first surface and the rotating member. The light wavelength converting layer is disposed on the first surface of the substrate.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: December 6, 2022
    Assignee: Coretronic Corporation
    Inventors: Pi-Tsung Hsu, Chi-Tang Hsieh
  • Publication number: 20220326592
    Abstract: A wavelength conversion element includes a substrate, a wavelength conversion layer and a heat dissipation member. The substrate has a supporting surface. The wavelength conversion layer is disposed on the supporting surface. The heat dissipation member is disposed on the supporting surface and is surrounded by the wavelength conversion layer. The heat dissipation member has a heat dissipation plate and a plurality of heat dissipation tooth portions. The heat dissipation plate is fixed on the supporting surface. The heat dissipation plate has an outer side surface. The outer side surface is perpendicular to the supporting surface. The heat dissipation tooth portions are respectively connected to the outer side surface. A projection device including the wavelength conversion element is also provided. The wavelength conversion element can improve wavelength conversion efficiency and reliability, and the projection device can improve image brightness and service life.
    Type: Application
    Filed: April 1, 2022
    Publication date: October 13, 2022
    Inventors: I-HUA CHEN, CHI-TANG HSIEH
  • Patent number: 11467479
    Abstract: A polarizing rotation device including a rotation shaft, a driving element and a polarizing element is provided. The driving element is configured to drive the rotation shaft to rotate. The polarizing element is connected to the rotation shaft and is disposed on a transmission path of at least one beam, where the driving element is configured to drive the polarizing element to rotate sequentially while taking the rotation shaft as a rotation central axis, and when the polarizing element is rotated, the at least one beam penetrates through the polarizing element, and the at least one beam penetrating through the polarizing element has different polarization states at different time. Therefore, when a projection device is in a polarized stereoscopic mode, a color or brightness of a display image is uniform, and a user observes a 3D display image with good uniformity.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: October 11, 2022
    Assignee: Coretronic Corporation
    Inventors: Yao-Shun Lin, Chi-Tang Hsieh, Chih-Hsien Tsai, Haw-Woei Pan
  • Patent number: 11454872
    Abstract: A wavelength conversion element includes a substrate and a wavelength conversion layer. The substrate has a bearing surface and a first positioning portion, and the first positioning portion is located on the bearing surface. The wavelength conversion layer is disposed on the bearing surface and has a second positioning portion corresponding to the first positioning portion, and the second positioning portion is adapted to engage with the first positioning portion. A projection apparatus having the wavelength conversion element is also provided. The disclosure is able to improve assemble accuracy and light conversion efficiency of the wavelength conversion element.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: September 27, 2022
    Assignee: Coretronic Corporation
    Inventors: Pi-Tsung Hsu, Chi-Tang Hsieh
  • Publication number: 20220276550
    Abstract: A wavelength conversion device, adapted for converting the wavelength of an incident illumination beam, includes a substrate and a wavelength conversion component. The wavelength conversion component is disposed on the substrate and includes a wavelength conversion layer and at least two wavelength conversion spoilers. The at least two wavelength conversion spoilers are disposed on the wavelength conversion layer, protrude from the wavelength conversion layer, and expose part of the wavelength conversion layer, and the height of each of the at least two wavelength conversion spoilers is less than half of the distance between the at least two wavelength conversion spoilers. The wavelength conversion device in the disclosure has good heat dissipation efficiency. A projector including the wavelength conversion device is further provided in the disclosure. Manufacturing methods of the wavelength conversion device are further provided in the disclosure.
    Type: Application
    Filed: February 24, 2022
    Publication date: September 1, 2022
    Applicant: Coretronic Corporation
    Inventors: I-Hua Chen, Chi-Tang Hsieh
  • Publication number: 20220269157
    Abstract: An illumination system and a projection device having good uniformity are provided. The illumination system includes at least one light source, a depolarizing element, and a light homogenizing element. The at least one light source is configured to provide multiple beams. The depolarizing element is disposed on a transmission path of the beams. The depolarizing element includes a first optical element, which is wedge-shaped and has a first optical axis. A direction of any one of the beams incident onto the first optical element is parallel to the first optical axis. The beams respectively become multiple linearly polarized beams with different polarization directions after passing through the first optical element. The light homogenizing element is configured to allow the linearly polarized beams to pass through to form an illumination beam. The depolarizing element is located between the at least one light source and the light homogenizing element.
    Type: Application
    Filed: February 24, 2022
    Publication date: August 25, 2022
    Applicant: Coretronic Corporation
    Inventors: Yu-Sheng Chen, Jo-Han Hsu, Kuan-Ta Huang, Chi-Tang Hsieh
  • Patent number: 11415273
    Abstract: A wavelength-converting device has a light incident side. The wavelength-converting device includes an inner annular portion and an annular portion. The annular portion is connected to an outer edge of the inner annular portion. The annular portion includes a wavelength-converting portion, a first heat-conductive bonding medium, a reflective layer, and a wavelength-converting layer. A groove is annularly disposed in the wavelength-converting portion, and the groove is recessed from the light incident side of the wavelength-converting device. The first heat-conductive bonding medium is disposed in the groove. The reflective layer is disposed on the first heat-conductive bonding medium. The wavelength-converting layer is disposed on the reflective layer and has a light receiving surface. A projection apparatus is also provided.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: August 16, 2022
    Assignee: Coretronic Corporation
    Inventors: Chia-Lun Tsai, Chi-Tang Hsieh
  • Patent number: 11411509
    Abstract: Systems and methods are provided to implement power supply units (PSUs) that are capable of operating on input power having different types of input voltage waveforms, including, but not limited to, pure sinusoidal waveforms, non-pure sinusoidal waveforms, and non-sinusoidal waveforms. Such a PSU may operate to continue supplying DC output power to a system load as long as the PSU is powered by any one of a variety of such different input power types, while at the same time also effectively monitoring for presence of input power provided to the PSU and shutting down the PSU in event of absence or termination of the input power to the PSU. Such a PSU may also automatically identify and adapt to changes between different types of input power while at the same time continuing to supply DC output power to a system load in an uninterrupted manner for as long as some type of input power is being provided to the PSU.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: August 9, 2022
    Assignee: Dell Products L.P.
    Inventors: Wei Cheng Yu, Geroncio O. Tan, Chi Che Wu, Merle Wood, III, Yung-Chang Chang, Ya-Tang Hsieh, Tsung-Cheng Liao
  • Patent number: 11402738
    Abstract: An illumination system including an exciting light source module, a wavelength conversion device and a light uniforming module is provided. The exciting light source module is configured to emit an exciting beam. The wavelength conversion device is disposed on a transmission path of the exciting beam and is configured to rotate around a central axis. The light uniforming module is disposed on the transmission path of the exciting beam and between the exciting light source module and the wavelength conversion device. After the exciting beam emitted from the exciting light source module passes through the light uniforming module, the exciting beam forms a light spot on the wavelength conversion device. The energy intensity distribution of the light spot along the radial direction about the central axis is that the energy intensity is lower in the center and higher on the two sides. A projection apparatus is also provided.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: August 2, 2022
    Assignee: Coretronic Corporation
    Inventors: Chi-Tang Hsieh, Chih-Hsien Tsai, Yao-Shun Lin
  • Publication number: 20220229354
    Abstract: A wavelength conversion module including a wavelength conversion wheel, a driver, and a weight member is provided. The wavelength conversion wheel includes a rotating plate, and the rotating plate has a first side and a second side opposite to each other. The driver is connected to the first side of the rotating plate, and drives the rotating plate to rotate around a rotation shaft of the driver as an axis. The weight member is attached to the second side of the rotating plate and rotates synchronously with the rotating plate. The rotating plate comprises a heat insulation region and a heat dissipation region. The heat insulation region and the heat dissipation region do not overlap each other. The heat insulation region comprises a first heat insulation region located at the first side and a second heat insulation region located at the second side.
    Type: Application
    Filed: December 21, 2021
    Publication date: July 21, 2022
    Applicant: Coretronic Corporation
    Inventors: Pi-Tsung Hsu, Chi-Tang Hsieh
  • Publication number: 20220206373
    Abstract: A wavelength conversion module, including a substrate, a wavelength conversion layer, and multiple adhesive bosses, is provided. The substrate has a first surface. The wavelength conversion layer is configured on the first surface of the substrate. The adhesive bosses are separately configured on the first surface of the substrate. The wavelength conversion layer surrounds the adhesive bosses, and each of the adhesive bosses is configured separately from the wavelength conversion layer. The disclosure also provides a projector including the wavelength conversion module. The wavelength conversion module has better heat dissipation effect.
    Type: Application
    Filed: December 14, 2021
    Publication date: June 30, 2022
    Applicant: Coretronic Corporation
    Inventors: Pi-Tsung Hsu, Chi-Tang Hsieh
  • Publication number: 20220206372
    Abstract: A wavelength conversion module includes a ceramic substrate, a wavelength conversion layer, and a plurality of colloidal bosses. The ceramic substrate has a first surface. The wavelength conversion layer is disposed on the first surface of the ceramic substrate. The colloidal bosses are separately from each other disposed on the ceramic substrate and at least located on the first surface. The colloidal bosses and the wavelength conversion layer are separated from each other, and a heat resistant temperature of the colloidal bosses is higher than 500 degrees. The above wavelength conversion module has favorable heat dissipation effect.
    Type: Application
    Filed: December 8, 2021
    Publication date: June 30, 2022
    Applicant: Coretronic Corporation
    Inventors: Chia-Lun Tsai, Pi-Tsung Hsu, Chi-Tang Hsieh
  • Publication number: 20220206371
    Abstract: An illumination system, including a light source module, a phosphor wheel, a light recycling element, and a light uniformizing element, is provided. The light source module emits an excitation light beam. The phosphor wheel includes a phosphor region. At a second timing, the other part of the excitation light beam transmitted to the phosphor region forms an unconverted light beam and is transmitted to the light recycling element, and is reflected by the light recycling element to form a recycled light beam. A part of the recycled light beam is converted into a second converted light beam. A first converted light beam and the second converted light beam are transmitted to the light uniformizing element through a same path, so that the illumination system outputs second light in the illumination light beam. A projection apparatus is also provided.
    Type: Application
    Filed: November 26, 2021
    Publication date: June 30, 2022
    Applicant: Coretronic Corporation
    Inventors: Yu-Shan Chen, Wan-Ting Hsieh, Ming-Tsung Weng, Chi-Tang Hsieh, Haw-Woei Pan, Jo-Han Hsu, Kuan-Ta Huang
  • Patent number: 11336873
    Abstract: An illumination system includes an excitation light source module, a light splitting and combining module, a filter module, and a wavelength conversion module. The excitation light source module provides an excitation beam. The light splitting and combining module is disposed on a transmission path of the excitation beam. The excitation beam includes a first and a second excitation beam which are different from each other in polarization state or wavelength range. The filter module is disposed on the transmission path of the excitation beam. The filter module includes a light passing area configured to allow the excitation beam to pass there-through and a light filtering area. The wavelength conversion module is disposed on the transmission path of the excitation beam reflected by the light filtering area and configured to convert the reflected excitation beam into a conversion beam. A projection apparatus including the above illumination system is also provided.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: May 17, 2022
    Assignee: Coretronic Corporation
    Inventors: Kuan-Ta Huang, Jo-Han Hsu, Chi-Tang Hsieh, Yu-Hua Hsieh
  • Patent number: 11327391
    Abstract: A wavelength conversion device includes a heat dissipation substrate, a first reflection layer, a second reflection layer, and a wavelength conversion layer. The first reflection layer is disposed on the heat dissipation substrate. The second reflection layer is disposed on the first reflection layer. The wavelength conversion layer is disposed on the second reflection layer. The first reflection layer is located between the heat dissipation substrate and the second reflection layer, and the second reflection layer is located between the first reflection layer and the wavelength conversion layer. A reflectivity of the second reflection layer to a visible light is greater than a reflectivity of the first reflection layer to the visible light, and a thickness of the first reflection layer is greater than or equal to a thickness of the second reflection layer. A projection device having the wavelength conversion device is further provided.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: May 10, 2022
    Assignee: Coretronic Corporation
    Inventors: I-Hua Chen, Chi-Tang Hsieh
  • Patent number: 11327293
    Abstract: A wavelength conversion device includes a driver, a substrate and a support. The support is disposed between the driver and the substrate. The support is connected to the substrate and the driver. The driver drives the support and the substrate to rotate about a central axis. The support includes at least one through hole. The invention also provides a projection device including a light source system, the aforementioned wavelength conversion device, a light valve, and a projection lens.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: May 10, 2022
    Assignee: Coretronic Corporation
    Inventors: Pi-Tsung Hsu, Chi-Tang Hsieh
  • Publication number: 20220131053
    Abstract: A wavelength conversion device includes a base plate, at least one wavelength conversion material layer and a balance ring. The base plate has a geometric center, the wavelength conversion material layer is disposed on the base plate, and the balance ring is disposed on the base plate and rotates about a rotation shaft. The balance ring has a balancing part, and the balancing part includes at least one of the following structures: (1) a protrusion formed by a part of an outer periphery of the balance ring protruding in a direction away from the rotation shaft; (2) a recess formed by a part of the outer periphery of the balance ring caving in a direction towards the rotation shaft.
    Type: Application
    Filed: October 19, 2021
    Publication date: April 28, 2022
    Inventors: I-HUA CHEN, CHI-TANG HSIEH
  • Patent number: 11300862
    Abstract: A wavelength conversion device includes a substrate, a wavelength conversion layer and a filling layer. The wavelength conversion layer is disposed on the substrate. A surface of the wavelength conversion layer away from the substrate has a plurality of pores, the filling layer is disposed on the surface of the wavelength conversion layer to fill the pores, where the filling layer is a transparent structure, and a transmittance of the filling layer to visible light is greater than or equal to 85%. A projection device having the above wavelength conversion device is also provided. The wavelength conversion device and the projection device of the invention may simplify a manufacturing process to save costs, and a yield and optical effects thereof are improved.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: April 12, 2022
    Assignee: Coretronic Corporation
    Inventors: I-Hua Chen, Chi-Tang Hsieh