Patents by Inventor Chun-Ju Wang
Chun-Ju 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).
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Publication number: 20240154447Abstract: A power system including a first battery pack, a second battery pack, and a power management circuit is disclosed. The first battery pack has a first end and a second end, and has a first battery capacity. The second battery pack has a third end and a fourth end. The third end is coupled to the second end of the first battery pack and provides a low battery voltage. The fourth end is grounded, the second battery pack has a second battery capacity, and the second battery capacity is greater than the first battery capacity. The power management circuit is coupled to the second battery pack to receive the low battery voltage, and provides a component operating voltage to an electronic components based on the low battery voltage.Type: ApplicationFiled: August 29, 2023Publication date: May 9, 2024Applicant: PEGATRON CORPORATIONInventors: Yi-Hsuan Lee, Liang-Cheng Kuo, Chun-Wei Ko, Ya Ju Cheng, Chih Wei Huang, Ywh Woei Yeh, Yu Cheng Lin, Yen Ting Wang
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Publication number: 20240134263Abstract: An illumination system including a plurality of light-emitting elements, a light combining module, a first lens group, a second lens group and a wavelength conversion device is provided. The plurality of light-emitting elements provide a plurality of first light beams. The light combining module is used for combining the plurality of first light beams into a second light beam. The wavelength conversion device is used for converting the second light beam into the third light beam or reflecting the second light beam. The first lens group has a first central axis. The first lens group includes a first part and a second part which are symmetrical with respect to the first central axis and have equal areas, and a luminous flux of the second light beam passing through the first part is greater than a luminous flux passing through the second part.Type: ApplicationFiled: October 17, 2023Publication date: April 25, 2024Applicant: Coretronic CorporationInventors: Wan-Ting Hsieh, Chun-Ju Wang
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Patent number: 11874590Abstract: An illumination system including multiple light sources, a first light combining module, a second light combining module, and a converging lens is provided. The light sources respectively provide multiple beams with the same wavelength range. The first light combining module is disposed on a transmission path of a portion of the beams. The second light combining module is disposed on a transmission path of another portion of the beams to combine the beams into an exciting beam. The converging lens is disposed on a transmission path of the exciting beam.Type: GrantFiled: May 4, 2022Date of Patent: January 16, 2024Assignee: Coretronic CorporationInventors: Chun-Ju Wang, Wei-Hua Chen
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Publication number: 20230194972Abstract: A light homogenizing element comprising a light incident surface, a light-emitting surface and a plurality of side surfaces is provided. The plurality of side surfaces are connected between the light incident surface and the light-emitting surface, the light-emitting surface is not parallel to the light incident surface, and the light-emitting surface includes a first side and a second side opposite to the first side, and the first side is not parallel to the second side. A projection device using the light homogenizing element is also provided.Type: ApplicationFiled: December 14, 2022Publication date: June 22, 2023Applicant: Coretronic CorporationInventors: Ming-Tsung Weng, Chun-Ju Wang, Chang-Hsuan Chen
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Publication number: 20220365413Abstract: An illumination system including multiple light sources, a first light combining module, a second light combining module, and a converging lens is provided. The light sources respectively provide multiple beams with the same wavelength range. The first light combining module is disposed on a transmission path of a portion of the beams. The second light combining module is disposed on a transmission path of another portion of the beams to combine the beams into an exciting beam. The converging lens is disposed on a transmission path of the exciting beam.Type: ApplicationFiled: May 4, 2022Publication date: November 17, 2022Applicant: Coretronic CorporationInventors: Chun-Ju Wang, Wei-Hua Chen
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Patent number: 10831091Abstract: An illumination system and a projection device using this illumination system are provided. The illumination system is adapted to provide an illumination light beam. The illumination system includes a plurality of light emitting element package structures and a light condensing element. The light emitting element package structures are adapted to provide a plurality of excitation light beams, respectively. The light condensing element is disposed on transmission paths of the excitation light beams. Each of the light emitting element package structures includes a substrate, a plurality of light emitting chips, and a package lens. The light emitting chips are disposed on the substrate. The package lens is disposed on the substrate and covers the light emitting chips. Each of the package lenses includes a plurality of lens units, and the lens units in each of the package lenses are integrally connected to cover the light emitting chips.Type: GrantFiled: April 15, 2019Date of Patent: November 10, 2020Assignee: Coretronic CorporationInventors: Chun-Ju Wang, Chien-Chung Liao
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Patent number: 10527916Abstract: A light source module and a projection device including the same are provided. A wavelength conversion device of the light source module has at least one wavelength conversion area for converting a blue beam provided by a blue light source into a converted beam, and the converted beam is transmitted to a wavelength selection element so that a first green beam is obtained by the wavelength selection element from at least a portion of the converted beam. According to the blue light source, a red light source, the wavelength conversion device and the wavelength selection element, the light source module provides an illumination beam corresponding to a first display mode or a second display mode.Type: GrantFiled: August 6, 2018Date of Patent: January 7, 2020Assignee: Coretronic CorporationInventors: Chien-Chung Liao, Chun-Ju Wang
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Publication number: 20190317392Abstract: An illumination system and a projection device using this illumination system are provided. The illumination system is adapted to provide an illumination light beam. The illumination system includes a plurality of light emitting element package structures and a light condensing element. The light emitting element package structures are adapted to provide a plurality of excitation light beams, respectively. The light condensing element is disposed on transmission paths of the excitation light beams. Each of the light emitting element package structures includes a substrate, a plurality of light emitting chips, and a package lens. The light emitting chips are disposed on the substrate. The package lens is disposed on the substrate and covers the light emitting chips. Each of the package lenses includes a plurality of lens units, and the lens units in each of the package lenses are integrally connected to cover the light emitting chips.Type: ApplicationFiled: April 15, 2019Publication date: October 17, 2019Inventors: CHUN-JU WANG, CHIEN-CHUNG LIAO
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Publication number: 20180343425Abstract: A light source module and a projection device including the same are provided. A wavelength conversion device of the light source module has at least one wavelength conversion area for converting a blue beam provided by a blue light source into a converted beam, and the converted beam is transmitted to a wavelength selection element so that a first green beam is obtained by the wavelength selection element from at least a portion of the converted beam. According to the blue light source, a red light source, the wavelength conversion device and the wavelength selection element, the light source module provides an illumination beam corresponding to a first display mode or a second display mode.Type: ApplicationFiled: August 6, 2018Publication date: November 29, 2018Applicant: Coretronic CorporationInventors: Chien-Chung Liao, Chun-Ju Wang
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Patent number: 10078214Abstract: The invention discloses a light source module, a projection device and driving methods thereof, wherein a wavelength conversion device of the light source module has at least one wavelength conversion area for converting a blue beam provided by a blue light source into a converted beam, and the converted beam is transmitted to a wavelength selection element so that a first green beam is obtained by the wavelength selection element from at least a portion of the converted beam. According to the blue light source, a red light source, the wavelength conversion device and the wavelength selection element, the light source module provides an illumination beam corresponding to a first display mode or a second display mode.Type: GrantFiled: November 29, 2017Date of Patent: September 18, 2018Assignee: Coretronic CorporationInventors: Chien-Chung Liao, Chun-Ju Wang
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Publication number: 20180157028Abstract: The invention discloses a light source module, a projection device and driving methods thereof, wherein a wavelength conversion device of the light source module has at least one wavelength conversion area for converting a blue beam provided by a blue light source into a converted beam, and the converted beam is transmitted to a wavelength selection element so that a first green beam is obtained by the wavelength selection element from at least a portion of the converted beam. According to the blue light source, a red light source, the wavelength conversion device and the wavelength selection element, the light source module provides an illumination beam corresponding to a first display mode or a second display mode.Type: ApplicationFiled: November 29, 2017Publication date: June 7, 2018Applicant: Coretronic CorporationInventors: Chien-Chung Liao, Chun-Ju Wang