Patents by Inventor Rongkai FENG

Rongkai FENG 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: 20230367101
    Abstract: An optical lens, a camera module, and an electronic device are disclosed. The optical lens includes a variable aperture, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens that are arranged from an object side to an image side. The first lens has a positive focal power, an object-side surface of the first lens is convex near an optical axis, and an image-side surface of the first lens is concave near the optical axis. The second lens has a negative focal power, an object-side surface of the second lens is convex near the optical axis, and an image-side surface of the second lens is concave near the optical axis.
    Type: Application
    Filed: July 26, 2023
    Publication date: November 16, 2023
    Inventors: Kaiyuan Zhang, Yun Chiang Hsu, Shaopan Zhou, Rongkai Feng
  • Publication number: 20230074379
    Abstract: An optical lens (10), a lens module (100), and a terminal (1000) are provided. The optical lens (10) includes a first constituent element (S1), a second constituent element (S2), a third constituent element (S3), and a fourth constituent element (S4) arranged from an object side to an image side, and each of the constituent elements includes at least one lens element. The optical lens (10) satisfies the following relations: 9.08?BFL?11.745; and 0.6?BFL/TTL?0.67. In this way, the optical lens (10) can obtain a long back focal length BFL, and long-focus photographing of the optical lens (10) is implemented. In addition, an axial thickness TTL1 of a plurality of lenses of the optical lens (10) is small, so that a thickness of the terminal (1000) including the optical lens (10) may also be small.
    Type: Application
    Filed: November 4, 2022
    Publication date: March 9, 2023
    Inventors: Yita Chiang, Zhantao Li, Rongkai Feng
  • Publication number: 20230034285
    Abstract: A camera module, which may be included in an electronic device includes a camera lens, a variable aperture, and a photosensitive element. A quantity of apertures of the camera lens is F1 when a clear aperture of the variable aperture is adjusted to a first clear aperture, and the photosensitive element is configured to: enable the camera lens to perform imaging in a full area of a photosensitive area, and adjust angular resolution of the full area to ?. A quantity of apertures of the camera lens is F2 when a clear aperture of the variable aperture is adjusted to a second clear aperture, where F1?F2, and the photosensitive element is configured to: enable the camera lens to perform imaging in a partial area of the photosensitive area, and adjust angular resolution of the partial area to n?, where 1?n?3.
    Type: Application
    Filed: September 29, 2022
    Publication date: February 2, 2023
    Inventors: Yun Chiang HSU, Yuanlin JIA, Rongkai FENG, Shaopan ZHOU
  • Publication number: 20220163764
    Abstract: This application provides an optical lens, a camera module, and a terminal. The optical lens includes a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element in sequence from an object side to an image side; and each lens element of the optical lens satisfies the following relations: 0.2?BFL/TTL?0.6, and 0.2?TTL1/MIC?0.5. Therefore, the optical lens has an improved back focal length BFL and a small total on-axis thickness TTL1 of the plurality of lens elements while achieving high imaging performance. Further, a thickness of the terminal can also be reduced.
    Type: Application
    Filed: February 11, 2022
    Publication date: May 26, 2022
    Inventors: Yita CHIANG, Yuanlin JIA, Rongkai FENG, Yasuhide NIHEI