Patents by Inventor De-Sheng Yang
De-Sheng Yang 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).
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Patent number: 10976652Abstract: An illumination system and a projection apparatus are provided. The illumination system includes an excitation light source, a light combining device, a filter module, and a wavelength conversion module. The light combining device is disposed on a transmission path of an excitation light beam emitted from the excitation light source. The filter module is disposed on a transmission path of the excitation light beam transmitted from the light combining device. The filter module includes a light passing-through area allowing the excitation light beam to pass through and at least one filter area reflecting the excitation light beam. The wavelength conversion module is disposed on a transmission path of the excitation light beam reflected by the at least one filter area. The wavelength conversion module converts the excitation light beam reflected by the at least one filter area into a converted light beam and reflects the converted light beam.Type: GrantFiled: May 23, 2019Date of Patent: April 13, 2021Assignee: Coretronic CorporationInventor: De-Sheng Yang
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Patent number: 10809607Abstract: An illumination system including an excitation light source, a wavelength conversion module, a light splitting module and a light homogenizing element is provided. The light splitting module has a transfer region and a light splitting region, an excitation beam incident to the wavelength conversion module is converted into a wavelength converted beam by a wavelength conversion region, and is reflected by the reflection region, and the excitation beam coming from the wavelength conversion module is split into a first and a second sub-excitation beams by the light splitting region, and the first sub-excitation beam and the second sub-excitation beam form an excitation combination beam. The light homogenizing element uniforms the excitation combination beam and the wavelength converted beam, where an angle of the excitation combination beam incident to the light homogenizing element is 0.25 times larger than an angle of the wavelength converted beam incident to the light homogenizing element.Type: GrantFiled: August 27, 2019Date of Patent: October 20, 2020Assignee: Coretronic CorporationInventors: Chen-Wei Fan, Hao-Wei Chiu, De-Sheng Yang, Chien-Chung Liao
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Patent number: 10732495Abstract: An illumination system includes a coherent light source, a first light-combining device, an optical wavelength conversion module, and a first auxiliary light source. The coherent light source emits a coherent light beam. The first light-combining device is disposed on a transmission path of the coherent light beam. The light wavelength conversion module is disposed on a transmission path of the coherent light beam transmitted from the first light-combining device and converts the coherent light beam into a first converted light beam, and reflects the first converted light beam back to the first light-combining device. The first auxiliary light source emits a first auxiliary light beam which is transmitted to the first light-combining device. The first light-combining device combines the first auxiliary light beam and the first converted light beam. A projection apparatus and a method for driving the illumination system are also provided.Type: GrantFiled: January 8, 2018Date of Patent: August 4, 2020Assignee: Coretronic CorporationInventors: Chi-Tang Hsieh, Ko-Shun Chen, Chi-Hsun Wang, Hao-Wei Chiu, Hou-Sheng Wang, Chien-Chung Liao, Yin-Cheng Lin, De-Sheng Yang, Ming-Tsung Weng
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Publication number: 20200159101Abstract: An illumination system including an excitation light source, a wavelength conversion module, a light splitting module and a light homogenizing element is provided. The light splitting module has a transfer region and a light splitting region, an excitation beam incident to the wavelength conversion module is converted into a wavelength converted beam by a wavelength conversion region, and is reflected by the reflection region, and the excitation beam coming from the wavelength conversion module is split into a first and a second sub-excitation beams by the light splitting region, and the first sub-excitation beam and the second sub-excitation beam form an excitation combination beam. The light homogenizing element uniforms the excitation combination beam and the wavelength converted beam, where an angle of the excitation combination beam incident to the light homogenizing element is 0.25 times larger than an angle of the wavelength converted beam incident to the light homogenizing element.Type: ApplicationFiled: August 27, 2019Publication date: May 21, 2020Applicant: Coretronic CorporationInventors: Chen-Wei Fan, Hao-Wei Chiu, De-Sheng Yang, Chien-Chung Liao
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Publication number: 20190369470Abstract: An illumination system and a projection apparatus are provided. The illumination system includes an excitation light source, a light combining device, a filter module, and a wavelength conversion module. The light combining device is disposed on a transmission path of an excitation light beam emitted from the excitation light source. The filter module is disposed on a transmission path of the excitation light beam transmitted from the light combining device. The filter module includes a light passing-through area allowing the excitation light beam to pass through and at least one filter area reflecting the excitation light beam. The wavelength conversion module is disposed on a transmission path of the excitation light beam reflected by the at least one filter area. The wavelength conversion module converts the excitation light beam reflected by the at least one filter area into a converted light beam and reflects the converted light beam.Type: ApplicationFiled: May 23, 2019Publication date: December 5, 2019Applicant: Coretronic CorporationInventor: De-Sheng Yang
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Patent number: 10386710Abstract: A projector and an illumination system thereof are provided. The illumination system includes an excitation light source group, a phosphor wheel, a light combiner element and a first lens group. The excitation light source group provides a first beam and has a first optical axis. The phosphor wheel has a reflection region and a wavelength conversion region. The light combiner element is disposed between the excitation light source group and the phosphor wheel and has a dichroic portion and a reflection portion. The first lens group is disposed between the light combiner element and the phosphor wheel. The first lens group has a second optical axis. The illumination system is provided in the projector to reduce the number of optical elements, thereby reducing the cost and volume.Type: GrantFiled: March 28, 2018Date of Patent: August 20, 2019Assignee: Coretronic CorporationInventors: De-Sheng Yang, Ming-Tsung Weng, Chien-Chung Liao
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Publication number: 20180284586Abstract: A projector and an illumination system thereof are provided. The illumination system includes an excitation light source group, a phosphor wheel, a light combiner element and a first lens group. The excitation light source group provides a first beam and has a first optical axis. The phosphor wheel has a reflection region and a wavelength conversion region. The light combiner element is disposed between the excitation light source group and the phosphor wheel and has a dichroic portion and a reflection portion. The first lens group is disposed between the light combiner element and the phosphor wheel. The first lens group has a second optical axis. The illumination system is provided in the projector to reduce the number of optical elements, thereby reducing the cost and volume.Type: ApplicationFiled: March 28, 2018Publication date: October 4, 2018Inventors: De-Sheng Yang, Ming-Tsung Weng, Chien-Chung Liao
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Publication number: 20180173087Abstract: An illumination system includes a coherent light source, a first light-combining device, an optical wavelength conversion module, and a first auxiliary light source. The coherent light source emits a coherent light beam. The first light-combining device is disposed on a transmission path of the coherent light beam. The light wavelength conversion module is disposed on a transmission path of the coherent light beam transmitted from the first light-combining device and converts the coherent light beam into a first converted light beam, and reflects the first converted light beam back to the first light-combining device. The first auxiliary light source emits a first auxiliary light beam which is transmitted to the first light-combining device. The first light-combining device combines the first auxiliary light beam and the first converted light beam. A projection apparatus and a method for driving the illumination system are also provided.Type: ApplicationFiled: January 8, 2018Publication date: June 21, 2018Applicant: Coretronic CorporationInventors: Chi-Tang Hsieh, Ko-Shun Chen, Chi-Hsun Wang, Hao-Wei Chiu, Hou-Sheng Wang, Chien-Chung Liao, Yin-Cheng Lin, De-Sheng Yang, Ming-Tsung Weng