Patents by Inventor Juhao CHEN

Juhao CHEN 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).

  • Publication number: 20220357515
    Abstract: An optical fiber filter includes a fiber core, inner cladding, and outer cladding. A refractive index of the fiber core, a refractive index of the inner cladding, and a refractive index of the outer cladding progressively decrease in sequence. The fiber core is configured to transmit at least two mutually different first optical signal modes, the inner cladding is configured to transmit at least two mutually different second optical signal modes, and at least one fiber grating is etched on the fiber core. At least part of optical power of a target first optical signal mode is coupled to only a target second optical signal mode at the fiber grating. The target first optical signal mode is one of the at least two first optical signal modes, and the target second optical signal mode is one of the at least two second optical signal modes.
    Type: Application
    Filed: July 12, 2022
    Publication date: November 10, 2022
    Inventors: Juhao LI, Jinglong ZHU, Yongqi HE, Shengling WU, Qiang GUO, Ruishan CHEN, Rui ZHOU
  • Publication number: 20220210298
    Abstract: The present disclosure relates to the field of optical technologies and provides a camera module and an endoscope. The camera module includes: a connecting base, including a first connecting member and a first circuit board; wherein the first circuit board is installed in the first connecting member; and a camera, including a housing, a second circuit board, a light source assembly, and a lens assembly; wherein the second circuit board, the light source assembly, and the lens assembly are respectively installed in the housing; the housing is removably connected to the first connecting member; the first circuit board and the second circuit board are electrically connected to each other.
    Type: Application
    Filed: June 25, 2021
    Publication date: June 30, 2022
    Inventors: Jiangfan YAN, Juhao CHEN, Zhongkai WANG, Hongquan GUAN, Haijuan ZOU, Xiang ZHENG