Patents by Inventor Changjing Zeng
Changjing Zeng 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: 12317383Abstract: A lighting apparatus includes a first light source, a second light source, a third light source, a driver, a first controller, a second controller and a main controller. The first light source emits a first light with a first color temperature. The second light source emits a second light with a second color temperature. The third light source emits a third light with a third color temperature. The driver generates a first driving current to the first light source, generates a second driving current to the second light source, and generates a third driving current to the third light source.Type: GrantFiled: February 24, 2023Date of Patent: May 27, 2025Assignee: LEEDARSON LIGHTING CO., LTD.Inventors: Yangbin Xu, Yankun Li, Hemu Ye, Qiqiang Lin, Zongyuan Liu, Liangliang Cao, Changjing Zeng
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Patent number: 12238832Abstract: A lighting apparatus includes a first light source, a second light source and a driver. The first light source has multiple first LED modules. The second light source has multiple second LED modules. The driver controls the first light source and the second light source to generate an output light of a required mixed color temperature. The driver selects a first subset of the multiple first LED modules and a second subset of the multiple second LED modules to generate a first output light with a first color temperature. The driver selects a third subset of the multiple first LED modules and a fourth subset of the multiple second LED modules to generate a second output light with a second color temperature. The first subset is not equal to the third subset. The second subset is not equal to the fourth subset.Type: GrantFiled: January 16, 2024Date of Patent: February 25, 2025Assignee: LEEDARSON LIGHTING CO.,LTD.Inventors: Jiayuan Zhang, Changjing Zeng, Jingjing Su, Xiaoming Yang, Zongyuan Liu, Liangliang Cao
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Publication number: 20240155748Abstract: A lighting apparatus includes a first light source, a second light source and a driver. The first light source has multiple first LED modules. The second light source has multiple second LED modules. The driver controls the first light source and the second light source to generate an output light of a required mixed color temperature. The driver selects a first subset of the multiple first LED modules and a second subset of the multiple second LED modules to generate a first output light with a first color temperature. The driver selects a third subset of the multiple first LED modules and a fourth subset of the multiple second LED modules to generate a second output light with a second color temperature. The first subset is not equal to the third subset. The second subset is not equal to the fourth subset.Type: ApplicationFiled: January 16, 2024Publication date: May 9, 2024Inventors: Jiayuan Zhang, Changjing Zeng, Jingjing Su, Xiaoming Yang, Zongyuan Liu, Liangliang Cao
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Patent number: 11910500Abstract: A lighting apparatus includes a first light source, a second light source and a driver. The first light source has multiple first LED modules. The second light source has multiple second LED modules. The driver controls the first light source and the second light source to generate an output light of a required mixed color temperature. The driver selects a first subset of the multiple first LED modules and a second subset of the multiple second LED modules to generate a first output light with a first color temperature. The driver selects a third subset of the multiple first LED modules and a fourth subset of the multiple second LED modules to generate a second output light with a second color temperature. The first subset is not equal to the third subset. The second subset is not equal to the fourth subset.Type: GrantFiled: July 11, 2022Date of Patent: February 20, 2024Assignee: LEEDARSON LIGHTING CO., LTD.Inventors: Jiayuan Zhang, Changjing Zeng, Jingjing Su, Xiaoming Yang, Zongyuan Liu, Liangliang Cao
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Publication number: 20230389147Abstract: A lighting apparatus includes a first LED module, a second LED module, a third LED module, and a driver. The first LED module emits a blue light with a first peak wavelength between 440-470 nm. The second LED module emits a green light with a second peak wavelength between 510-550 nm, a second spectral bandwidth larger than 50 nm and a second color purity larger than 50%. The third LED module emits a red light with a third peak wavelength between 600-650 nm, a third spectral bandwidth larger than 60 nm and a third color purity larger than 80%. The driver adjusts a light ratio among the first blue light, the green light and the red light.Type: ApplicationFiled: May 29, 2023Publication date: November 30, 2023Inventors: Changjing Zeng, Zongyuan Liu, Qiqiang Lin, Hao Chen, Yankun Li, Hemu Ye, Liangliang Cao
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Publication number: 20230284352Abstract: A lighting apparatus includes a first light source, a second light source, a third light source, a driver, a first controller, a second controller and a main controller. The first light source emits a first light with a first color temperature. The second light source emits a second light with a second color temperature. The third light source emits a third light with a third color temperature. The driver generates a first driving current to the first light source, generates a second driving current to the second light source, and generates a third driving current to the third light source.Type: ApplicationFiled: February 24, 2023Publication date: September 7, 2023Inventors: Yangbin Xu, Yankun Li, Hemu Ye, Qiqiang Lin, Zongyuan Liu, Liangliang Cao, Changjing Zeng
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Publication number: 20230008995Abstract: A lighting apparatus includes a first light source, a second light source and a driver. The first light source has multiple first LED modules. The second light source has multiple second LED modules. The driver controls the first light source and the second light source to generate an output light of a required mixed color temperature. The driver selects a first subset of the multiple first LED modules and a second subset of the multiple second LED modules to generate a first output light with a first color temperature. The driver selects a third subset of the multiple first LED modules and a fourth subset of the multiple second LED modules to generate a second output light with a second color temperature. The first subset is not equal to the third subset. The second subset is not equal to the fourth subset.Type: ApplicationFiled: July 11, 2022Publication date: January 12, 2023Inventors: Jiayuan Zhang, Changjing Zeng, Jingjing Su, Xiaoming Yang, Zongyuan Liu, Liangliang Cao
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Publication number: 20200404758Abstract: The lighting apparatus includes a first LED module, a second LED module and a third LED module. The first LED module emits a first light of a first color temperature. The second LED module emits a second light of a second color temperature. The third LED module emits a third light of a third color temperature. The driver is used for generating a first driving power, a second driving power and a third driving power respectively supplying to the first LED module, the second LED module and the third LED module. The controller is for determining a power ratio corresponding to a mixed light with a target color temperature mixed by the first light, the second light and the third light. The mixed lights of different target color temperatures have chroma coordinates within a predetermined chroma range.Type: ApplicationFiled: June 22, 2020Publication date: December 24, 2020Inventors: Changjing Zeng, Yiwei Chen
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Patent number: 10465863Abstract: An assembly light apparatus has a station bracket, a fixed light module, and a portable light module. The station bracket has a fixed holder, a detachable holder and a pose adjuster structure. The fixed light module is fixed on the fixed holder. The portable light module is selectively attached on the detachable holder. The pose adjuster structure is operated to rotate to change an angle and a position of the fixed holder and the detachable holder with respect to the station bracket.Type: GrantFiled: March 21, 2018Date of Patent: November 5, 2019Inventors: Shouqiang Hou, Xiaoliang Wen, Jinfan Zhang, Maojin Zeng, Qiaorong Chen, Changjing Zeng
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Publication number: 20190293246Abstract: An assembly light apparatus has a station bracket, a fixed light module, and a portable light module. The station bracket has a fixed holder, a detachable holder and a pose adjuster structure. The fixed light module is fixed on the fixed holder. The portable light module is selectively attached on the detachable holder. The pose adjuster structure is operated to rotate to change an angle and a position of the fixed holder and the detachable holder with respect to the station bracket.Type: ApplicationFiled: March 21, 2018Publication date: September 26, 2019Inventors: Shouqiang Hou, Xiaoliang Wen, Jinfan Zhang, Maojin Zeng, Qiaorong Chen, Changjing Zeng