Patents by Inventor Kuan-Ta Huang
Kuan-Ta Huang 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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Publication number: 20240045316Abstract: An illumination system providing an illumination beam includes a light source module generating first to third color beams, a light splitting and combining element, a beam expanding and collimating module, a reflecting element, and a light combining module. The first and second color beams are reflected by the light splitting and combining element after being transmitted to the light splitting and combining element. Paths of the first and second color beams leaving the light splitting and combining element are coincident. The first and second color beams from the light splitting and combining element are expanded and collimated by the beam expanding and collimating module and transmitted to the light combining module. The third color beam is reflected by the reflecting element and transmitted to the light combining module. Paths of the first to third color beams after leaving the light combining module are coincident. A projection device is provided.Type: ApplicationFiled: August 1, 2023Publication date: February 8, 2024Applicant: Coretronic CorporationInventors: Jui Chang, Kuan-Ta Huang, Jo-Han Hsu
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Publication number: 20240027884Abstract: An illumination system includes first to third reflection components, a first light splitting and combining element, and a lens. The first and second reflection components reflect a first color beam and another first color beam, respectively. The third reflection element reflects a second color beam and another second color beam. The first light splitting and combining element passes the second color beams and reflects the first color beams. The first color beams and the second color beams leaving the first light splitting and combining element respectively form first and second irradiation areas not overlapped with each other and third and fourth irradiation areas not overlapped with each other on the lens, and each of the first and second irradiation areas are overlapped with at least a portion of the third and fourth irradiation areas.Type: ApplicationFiled: July 19, 2023Publication date: January 25, 2024Applicant: Coretronic CorporationInventors: Jui Chang, Kuan-Ta Huang, Jo-Han Hsu
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Patent number: 11860527Abstract: An illumination system including an excitation light source array, a multi-region dichroic device, a color sequence generator, and a wavelength converter is provided. The excitation light source array emits excitation light beams. The multi-region dichroic device has first dichroic regions and non-dichroic regions that are alternately arranged in stripe shapes. The first dichroic regions are respectively disposed on transmission paths of the excitation light beams. The excitation light beams from the excitation light source array are transmitted to the color sequence generator through the first dichroic regions of the multi-region dichroic device, and at least one second dichroic region of the color sequence generator respectively reflects the excitation light beams to the non-dichroic regions of the multi-region dichroic device. The excitation light beams from the color sequence generator are transmitted to the wavelength converter through the non-dichroic regions of the multi-region dichroic device.Type: GrantFiled: July 2, 2021Date of Patent: January 2, 2024Assignee: Coretronic CorporationInventors: Haw-Woei Pan, Jo-Han Hsu, Kuan-Ta Huang, Chi-Tang Hsieh
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Patent number: 11709417Abstract: 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: GrantFiled: February 24, 2022Date of Patent: July 25, 2023Assignee: Coretronic CorporationInventors: Yu-Sheng Chen, Jo-Han Hsu, Kuan-Ta Huang, Chi-Tang Hsieh
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Patent number: 11693301Abstract: 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: GrantFiled: November 26, 2021Date of Patent: July 4, 2023Assignee: Coretronic CorporationInventors: Yu-Shan Chen, Wan-Ting Hsieh, Ming-Tsung Weng, Chi-Tang Hsieh, Haw-Woei Pan, Jo-Han Hsu, Kuan-Ta Huang
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Patent number: 11669003Abstract: An illumination system, including an excitation light source, a beam splitting filter device, and a wavelength conversion element, is provided. The excitation light source is configured to emit an excitation beam. The beam splitting filter device includes a light penetration region and a beam splitting filter region. The excitation beam penetrates the light penetration region to form a first beam. The excitation beam is reflected by the beam splitting filter region. The wavelength conversion element is disposed on a transmission path of the excitation beam coming from the beam splitting filter region. The wavelength conversion element is configured to convert the excitation beam coming from the beam splitting filter region to a conversion beam and transmit the conversion beam back to the beam splitting filter region, and the conversion beam at least partially penetrates the beam splitting filter region to form a second beam. A projection device is also provided.Type: GrantFiled: October 19, 2021Date of Patent: June 6, 2023Assignee: Coretronic CorporationInventors: Haw-Woei Pan, Kuan-Ta Huang
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Publication number: 20230140825Abstract: A beam splitter/combiner includes a first light-transmitting substrate, a first light transmission element, and a second light transmission element. The first light-transmitting substrate has a first optical surface facing incident light and a second optical surface opposite to the first optical surface. The first light transmission element is disposed on the first optical surface. The second light transmission element is disposed on the second optical surface. A first color beam incident on the first light-transmitting substrate is reflected by the first light transmission element and leaves the first light-transmitting substrate. A second color beam incident on the first light-transmitting substrate passes through the first light transmission element, is reflected by the second light transmission element, then passes through the first light transmission element, and leaves the first light-transmitting substrate.Type: ApplicationFiled: October 13, 2022Publication date: May 4, 2023Applicant: Coretronic CorporationInventors: Jui Chang, Kuan-Ta Huang, Jo-Han Hsu, Chi-Tang Hsieh
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Patent number: 11614681Abstract: An illumination system includes a first light source, a wavelength conversion device, a first light-splitting element, a light-filtering device, and a light-homogenizing element. The first light source provides a first light beam. The wavelength conversion device includes a single wavelength conversion material configured to convert the first light beam into a conversion light beam. The first light-splitting element is disposed on transmission paths of the first light beam and the conversion light beam. The light-filtering device is disposed on the transmission paths of the first light beam and the conversion light beam. The light-homogenizing element is disposed on the transmission paths of the first light beam and the conversion light beam. When the first light beam is transmitted to the light-homogenizing element, the first light beam is not incident on the wavelength conversion device. A projection apparatus including the illumination system is also provided.Type: GrantFiled: July 6, 2021Date of Patent: March 28, 2023Assignee: Coretronic CorporationInventors: Haw-Woei Pan, Kuan-Ta Huang, Yu-Hua Hsieh, Jo-Han Hsu
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Publication number: 20220269157Abstract: 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: ApplicationFiled: February 24, 2022Publication date: August 25, 2022Applicant: Coretronic CorporationInventors: Yu-Sheng Chen, Jo-Han Hsu, Kuan-Ta Huang, Chi-Tang Hsieh
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Publication number: 20220206371Abstract: 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: ApplicationFiled: November 26, 2021Publication date: June 30, 2022Applicant: Coretronic CorporationInventors: Yu-Shan Chen, Wan-Ting Hsieh, Ming-Tsung Weng, Chi-Tang Hsieh, Haw-Woei Pan, Jo-Han Hsu, Kuan-Ta Huang
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Patent number: 11336873Abstract: 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: GrantFiled: July 23, 2020Date of Patent: May 17, 2022Assignee: Coretronic CorporationInventors: Kuan-Ta Huang, Jo-Han Hsu, Chi-Tang Hsieh, Yu-Hua Hsieh
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Publication number: 20220128896Abstract: An illumination system, including an excitation light source, a beam splitting filter device, and a wavelength conversion element, is provided. The excitation light source is configured to emit an excitation beam. The beam splitting filter device includes a light penetration region and a beam splitting filter region. The excitation beam penetrates the light penetration region to form a first beam. The excitation beam is reflected by the beam splitting filter region. The wavelength conversion element is disposed on a transmission path of the excitation beam coming from the beam splitting filter region. The wavelength conversion element is configured to convert the excitation beam coming from the beam splitting filter region to a conversion beam and transmit the conversion beam back to the beam splitting filter region, and the conversion beam at least partially penetrates the beam splitting filter region to form a second beam. A projection device is also provided.Type: ApplicationFiled: October 19, 2021Publication date: April 28, 2022Applicant: Coretronic CorporationInventors: Haw-Woei Pan, Kuan-Ta Huang
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Publication number: 20220100067Abstract: An illumination system includes a first light source, a wavelength conversion device, a first light-splitting element, a light-filtering device, and a light-homogenizing element. The first light source provides a first light beam. The wavelength conversion device includes a single wavelength conversion material configured to convert the first light beam into a conversion light beam. The first light-splitting element is disposed on transmission paths of the first light beam and the conversion light beam. The light-filtering device is disposed on the transmission paths of the first light beam and the conversion light beam. The light-homogenizing element is disposed on the transmission paths of the first light beam and the conversion light beam. When the first light beam is transmitted to the light-homogenizing element, the first light beam is not incident on the wavelength conversion device. A projection apparatus including the illumination system is also provided.Type: ApplicationFiled: July 6, 2021Publication date: March 31, 2022Applicant: Coretronic CorporationInventors: Haw-Woei Pan, Kuan-Ta Huang, Yu-Hua Hsieh, Jo-Han Hsu
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Publication number: 20220075252Abstract: An illumination system including an excitation light source array, a multi-region dichroic device, a color sequence generator, and a wavelength converter is provided. The excitation light source array emits excitation light beams. The multi-region dichroic device has first dichroic regions and non-dichroic regions that are alternately arranged in stripe shapes. The first dichroic regions are respectively disposed on transmission paths of the excitation light beams. The excitation light beams from the excitation light source array are transmitted to the color sequence generator through the first dichroic regions of the multi-region dichroic device, and at least one second dichroic region of the color sequence generator respectively reflects the excitation light beams to the non-dichroic regions of the multi-region dichroic device. The excitation light beams from the color sequence generator are transmitted to the wavelength converter through the non-dichroic regions of the multi-region dichroic device.Type: ApplicationFiled: July 2, 2021Publication date: March 10, 2022Applicant: Coretronic CorporationInventors: Haw-Woei Pan, Jo-Han Hsu, Kuan-Ta Huang, Chi-Tang Hsieh
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Publication number: 20210037222Abstract: 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: ApplicationFiled: July 23, 2020Publication date: February 4, 2021Applicant: Coretronic CorporationInventors: Kuan-Ta Huang, Jo-Han Hsu, Chi-Tang Hsieh, Yu-Hua Hsieh
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Patent number: 10788740Abstract: A projector and its illumination system and wavelength conversion device are provided. The wavelength conversion device includes a substrate, a wavelength converting portion, and a wavelength maintaining portion. The substrate has a rotation axis. The wavelength converting portion surrounds the rotation axis and is adapted to receive the first beam and convert a first portion of the first beam into a second beam. The wavelength maintaining portion surrounds the rotation axis and is adapted to receive the first beam and guide a second portion of the first beam. A ratio of the first portion of the first beam with respect to the first beam is greater than a ratio of the second portion of the first beam with respect to the first beam. The illumination system and the wavelength conversion device in the projector reduce the number of optical elements, thereby reducing the cost and the size of the projector.Type: GrantFiled: May 30, 2018Date of Patent: September 29, 2020Assignee: Coretronic CorporationInventors: Chien-Chung Liao, Jen-Hung Huang, Kuan-Ta Huang
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Patent number: 10331022Abstract: A light source module includes a solid-state light source and a wavelength conversion wheel. The solid-state light source provides a light beam. The wavelength conversion wheel has a wavelength conversion region and a penetration region. The wavelength conversion region converts the light beam to generate a conversion beam. A substrate of the wavelength conversion wheel includes a first surface and a second surface opposite to the first surface. The wavelength conversion region includes a first conversion region and a second conversion region. The first and the second conversion regions are respectively located on the first and the second surfaces. The penetration region is connected to the first and the second surfaces. The wavelength conversion region and the penetration region are symmetrically disposed by using a symmetry point of the substrate as a reference point. A projection apparatus including the light source module is disclosed.Type: GrantFiled: December 26, 2017Date of Patent: June 25, 2019Assignee: Coretronic CorporationInventors: Kuan-Ta Huang, Ming-Tsung Weng
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Publication number: 20180348613Abstract: A projector and its illumination system and wavelength conversion device are provided. The wavelength conversion device includes a substrate, a wavelength converting portion, and a wavelength maintaining portion. The substrate has a rotation axis. The wavelength converting portion surrounds the rotation axis and is adapted to receive the first beam and convert a first portion of the first beam into a second beam. The wavelength maintaining portion surrounds the rotation axis and is adapted to receive the first beam and guide a second portion of the first beam. A ratio of the first portion of the first beam with respect to the first beam is greater than a ratio of the second portion of the first beam with respect to the first beam. The illumination system and the wavelength conversion device in the projector reduce the number of optical elements, thereby reducing the cost and the size of the projector.Type: ApplicationFiled: May 30, 2018Publication date: December 6, 2018Inventors: Chien-Chung Liao, Jen-Hung Huang, Kuan-Ta Huang
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Publication number: 20180188640Abstract: A light source module includes a solid-state light source and a wavelength conversion wheel. The solid-state light source provides a light beam. The wavelength conversion wheel has a wavelength conversion region and a penetration region. The wavelength conversion region converts the light beam to generate a conversion beam. A substrate of the wavelength conversion wheel includes a first surface and a second surface opposite to the first surface. The wavelength conversion region includes a first conversion region and a second conversion region. The first and the second conversion regions are respectively located on the first and the second surfaces. The penetration region is connected to the first and the second surfaces. The wavelength conversion region and the penetration region are symmetrically disposed by using a symmetry point of the substrate as a reference point. A projection apparatus including the light source module is disclosed.Type: ApplicationFiled: December 26, 2017Publication date: July 5, 2018Applicant: Coretronic CorporationInventors: Kuan-Ta Huang, Ming-Tsung Weng
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Patent number: 9927685Abstract: An illumination system including an excitation light source module configured to emit an excitation beam, a wavelength conversion device, and a light-splitting unit on a transmission path of the excitation beam and between the excitation light source module and the wavelength conversion device is provided. The light-splitting unit includes a transparent substrate and a first optical film with a hole through which the excitation beam is transmitted to the wavelength conversion device. A wavelength conversion area and a diffusion area of the wavelength conversion device cut into the transmission path by turns. The wavelength conversion area converts the excitation beam into a conversion beam transmitted to the light-splitting unit. The diffusion area reflects the excitation beam to the light-splitting unit; the first optical film reflects the excitation beam coming from the diffusion area. Wavelengths of the conversion beam and excitation beam are different. A projection apparatus is also provided.Type: GrantFiled: March 17, 2016Date of Patent: March 27, 2018Assignee: Cortronic CorporationInventors: Chien-Chung Liao, Kuan-Ta Huang