Patents by Inventor Linlin Cheng

Linlin Cheng 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).

  • Patent number: 12669227
    Abstract: A lamp installed by quick plugging is disclosed, including a junction box and a lamp body, where the lamp body includes a rear cover, and two symmetrically provided installation springs are connected to the rear cover; a drive plate is provided inside the rear cover; a connecting female end is connected to the drive plate, and the connecting female end is electrically connected to the drive plate; a light source plate is also provided inside the rear cover, and a face ring is connected below the rear cover; a connecting male end corresponding to the connecting female end is installed inside the junction box; a connecting elastic sheet is connected to an upper surface of the rear cover, and connecting flanges are provided inside the junction box. An implementation method of the lamp installed by quick plugging is also disclosed.
    Type: Grant
    Filed: January 18, 2025
    Date of Patent: June 30, 2026
    Assignee: HENGDIAN GROUP TOSPO LIGHTING CO., LTD.
    Inventors: Tao Li, Liang Chen, Kaixuan Ge, Linlin Cheng, Hao Chen, Jinghang Zhou, Miao Han, Wei Liu
  • Publication number: 20260049701
    Abstract: A downlight with multiple switchable lighting modes is disclosed. The downlight includes a ring body. A light guide ring is disposed inside the ring body. A radiator is disposed above the light guide ring. A diffusion cover is disposed on the inner side of the radiator. A light guide plate is disposed above the diffusion cover. Reflective sheet is disposed above the light guide plate. A second light source is connected to an inner wall of the radiator. A first light source is disposed between the ring body and the radiator. A backplate is connected above the ring body.
    Type: Application
    Filed: August 17, 2025
    Publication date: February 19, 2026
    Applicant: Hengdian Group Tospo Lighting Co., Ltd.
    Inventors: Tao LI, Junchu SI, Linlin CHENG, Jinghang ZHOU, Miao HAN, Heng LI, Hao CHEN, Wei LIU, Kaixuan GE
  • Publication number: 20260043536
    Abstract: A downlight is disclosed, including a cylindrical body. Springs are symmetrically connected to a side surface of the cylindrical body; a lamp body is provided inside the cylindrical body; a limiting ring is provided at an upper end inside the cylindrical body; a rotatable disk is provided above the limiting ring; the lamp body and the rotatable disk are connected through a connecting member; two ends of the connecting member are connected to the lamp body and the rotatable disk through friction pivots, respectively; and a upper cover is connected to an upper portion of the cylindrical body.
    Type: Application
    Filed: August 7, 2025
    Publication date: February 12, 2026
    Applicant: Hengdian Group Tospo Lighting Co., Ltd.
    Inventors: Tao LI, Junchu SI, Linlin CHENG, Miao HAN, Heng LI, Jinghang ZHOU, Hao CHEN, Wei LIU
  • Publication number: 20250314361
    Abstract: A lamp installed by quick plugging is disclosed, including a junction box and a lamp body, where the lamp body includes a rear cover, and two symmetrically provided installation springs are connected to the rear cover; a drive plate is provided inside the rear cover; a connecting female end is connected to the drive plate, and the connecting female end is electrically connected to the drive plate; a light source plate is also provided inside the rear cover, and a face ring is connected below the rear cover; a connecting male end corresponding to the connecting female end is installed inside the junction box; a connecting elastic sheet is connected to an upper surface of the rear cover, and connecting flanges are provided inside the junction box. An implementation method of the lamp installed by quick plugging is also disclosed.
    Type: Application
    Filed: January 18, 2025
    Publication date: October 9, 2025
    Inventors: Tao Li, Liang Chen, Kaixuan Ge, Linlin Cheng, Hao Chen, Jinghang Zhou, Miao Han, Wei Liu
  • Patent number: 11802673
    Abstract: An intelligent dimming RGB LED spotlight comprises an outer shell, a lamp base and a lampshade. A drive board connects to the lamp base and a light source board. The light source board is provided with dense ordinary-color-temperature lamp beads and RGB color-changing lamp beads, and is connected above to the lampshade corresponding to the RGB color-changing lamp beads. A method for achieving the intelligent dimming RGB LED spotlight includes the lampshade scattering the light emitted by the RGB color-changing lamp beads, so as to reduce the light intensity and make the light-emitting area larger and the emitted light more uniform, while it does not block the light emitted by the ordinary-color-temperature lamp beads, which makes the generated light spot have balanced illumination and a uniform and high-purity color in the color-changing process of a variety of colors, able to achieve the effect of AA level of GB illumination.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: October 31, 2023
    Assignee: HENGDIAN GROUP TOSPO LIGHTING CO., LTD.
    Inventors: Zuohong Yao, Linlin Cheng, Liangtian Shangguan, Xiangxiang Jin
  • Publication number: 20220307663
    Abstract: An intelligent dimming RGB LED spotlight comprises an outer shell, a lamp base and a lampshade. A drive board connects to the lamp base and a light source board. The light source board is provided with dense ordinary-color-temperature lamp beads and RGB color-changing lamp beads, and is connected above to the lampshade corresponding to the RGB color-changing lamp beads. A method for achieving the intelligent dimming RGB LED spotlight includes the lampshade scattering the light emitted by the RGB color-changing lamp beads, so as to reduce the light intensity and make the light-emitting area larger and the emitted light more uniform, while it does not block the light emitted by the ordinary-color-temperature lamp beads, which makes the generated light spot have balanced illumination and a uniform and high-purity color in the color-changing process of a variety of colors, able to achieve the effect of AA level of GB illumination.
    Type: Application
    Filed: June 22, 2020
    Publication date: September 29, 2022
    Inventors: Zuohong Yao, Linlin Cheng, Liangtian Shangguan, Xiangxiang Jin