Patents by Inventor Xuming Liu

Xuming Liu 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: 12276866
    Abstract: An optical imaging lens and an imaging equipment comprising: a first, second, and seventh lens each with focal power and a convex surface on an object side and a concave surface on an image side; a third lens, fourth, and fifth lens each with positive focal power and having a convex surface on the object side and a convex surface on the image side; a sixth lens with negative focal power, having an object side surface being a concave surface and an image side surface being a concave surface; and a diaphragm. The optical imaging lens has the characteristics of super large aperture, long focal length, and high resolution, and can meet the requirements for small field of view and high resolution, e.g., in vehicle-mounted devices.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: April 15, 2025
    Assignee: JIANGXI LIANCHUANG ELECTRONIC CO., LTD
    Inventors: Weijian Chen, Xuming Liu, Jiyong Zeng
  • Patent number: 12276779
    Abstract: The disclosure provides a wide-angle lens, a camera module and a camera. The wide-angle lens sequentially includes a first group, a stop, a second group, a third group and a filter. The first group sequentially includes a first lens with a negative refractive power, a second lens with a negative refractive power, and a third lens with a refractive power. The first lens is a meniscus lens. The second lens has a concave image side surface. The second group sequentially includes a fourth lens with a positive refractive power and a fifth lens with a positive refractive power, an image side surface of the fourth lens and an image side surface of the fifth lens are both convex. The third group sequentially includes a cemented doublet and an eighth lens. The eighth lens is a bi-convex lens.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: April 15, 2025
    Assignee: JIANGXI LIANCHUANG ELECTRONIC CO., LTD.
    Inventors: Wenzhe Wei, Xuming Liu, Jiyong Zeng
  • Patent number: 12270972
    Abstract: The disclosure provides an optical lens, a camera module and a terminal. The optical lens sequentially includes: a stop; a first lens with positive focal power, a convex object side surface, and an image side surface with a concave paraxial region; a second lens with negative focal power, a concave image side, and an object side surface with a convex paraxial region; a third lens with a positive focal power, both an object surface and an image surface are concave at a paraxial region thereof; a fourth lens with a negative focal power, a concave object side surface and a convex image side surface; a fifth lens with positive focal power, an object surface and an image surface are convex at a paraxial region thereof; and a sixth lens with a negative focal power, bath an object surface and an image surface are concave at a paraxial region thereof.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: April 8, 2025
    Assignee: JIANGXI LIANYI OPTICS CO., LTD.
    Inventors: Xiaozhi Yu, Haojie Zeng, Xuming Liu, Jiyong Zeng
  • Patent number: 12228704
    Abstract: Disclosed are an imaging lens, a camera module and a camera. Five lenses are adopted in the imaging lens, which from an object side to an imaging plane, are: a first lens having a negative refractive power, where a paraxial region of an object side surface of the first lens is concave; a second lens having a positive refractive power; a third lens having a positive refractive power, where a paraxial region of an image side surface of the third lens is concave, and at least a portion away from an optical axis of the image side surface of the third lens is convex; a fourth lens having a positive refractive power; and a fifth lens having a negative refractive power. The camera includes the camera module, and the camera module includes the imaging lens and an image sensor opposite to the imaging lens.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: February 18, 2025
    Assignee: JIANGXI LIANYI OPTICS CO., LTD.
    Inventors: Xuming Liu, Tian Zhang, Haojie Zeng, Jiyong Zeng
  • Patent number: 12197037
    Abstract: Provided are an imaging lens system, a camera module and an electronic device. The imaging lens system, from an object side to an imaging plane, sequentially includes: a first lens with a negative focal power, a second lens with a positive focal power, a third lens with a positive focal power and a fourth lens with a negative focal power. An object side surface of the first lens includes a paraxial region and a peripheral region. In the object side surface of the first lens, at least one inflection point is defined between the paraxial region and the peripheral region, and the paraxial region is concave relative to the at least one inflection point. An image side surface of the third lens is convex. A paraxial region of an image side surface of the fourth lens is concave.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: January 14, 2025
    Assignee: JIANGXI LIANYI OPTICS CO., LTD.
    Inventors: Yilong Wang, Xuming Liu
  • Patent number: 12055695
    Abstract: Provided are a wide-angle lens, a camera module having a wide-angle lens, and a camera having a camera module having a wide-angle lens. A first group includes a first lens and a second lens each having a negative refractive power. A second group includes a third lens and a fourth lens each having a positive refractive power. The third group includes a fifth lens and a sixth lens each having a positive refractive, a seventh lens having a negative refractive power, and an eighth lens having a positive refractive power, the sixth lens and the seventh lens form a cemented body. The wide-angle lens, the camera module and the camera adopt eight glass lenses.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: August 6, 2024
    Assignee: JIANGXI LIANCHUANG ELECTRONIC CO., LTD.
    Inventors: Wenzhe Wei, Xuming Liu, Jiyong Zeng
  • Patent number: 12054104
    Abstract: The disclosure provides wide-angle lens, an imaging device, a camera module and a vehicle camera. From an object side to an image side, the wide-angle lens sequentially includes: a first lens group with a refractive power, wherein the first lens group includes a first lens with a negative refractive power, a second lens with a negative refractive power and a third lens with a positive refractive power from the object side surface to the image side surface; a second lens group with a positive refractive power, wherein the second lens group includes a fourth lens with a negative refractive power, a fifth lens with a positive refractive power and a sixth lens with a positive refractive power; and a stop disposed between the first lens group and the second lens group.
    Type: Grant
    Filed: April 26, 2020
    Date of Patent: August 6, 2024
    Assignee: JIANGXI LIANCHUANG ELECTRONIC CO., LTD.
    Inventors: Yumin Bao, Xuming Liu, Jiyong Zeng
  • Patent number: 12019232
    Abstract: Provided is an endoscope lens, a camera module and an endoscope. From an object side to an image side, the endoscope lens sequentially includes: a first lens having a concave object side surface and a convex image side surface; a second lens with a positive or negative refractive power; and a filter arranged between the second lens and the image side. Each of the first lens and the second lens is a glass or plastic aspheric lens. The endoscope lens further includes a stop positioned between the first lens and the object side or between the first lens and the second lens.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: June 25, 2024
    Assignee: JIANGXI LIANCHUANG ELECTRONIC CO., LTD.
    Inventors: Wenzhe Wei, Xuming Liu, Jiyong Zeng, Zhuo Wang
  • Patent number: 11966028
    Abstract: Provided are an optical lens, a camera module and a front camera. From an object side to an Imaging plane, the optical lens sequentially includes: a stop; a first lens having a positive focal power and a concave object side surface; a second lens having a negative focal power and a concave image side surface; a third lens having a positive focal power, a convex object side surface and a concave image side surface; a fourth lens having a positive focal power, a concave object side surface and a convex image side surface; a fifth lens having a negative focal power. An entrance pupil diameter EPD of the optical lens is smaller than 1.58 mm, and the maximum distance between the projection of an entrance pupil and the projection of the object side surface of the first lens on the optical axis is greater than 0.17 mm.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: April 23, 2024
    Assignee: JIANGXI LIANYI OPTICS CO., LTD
    Inventors: Yilong Wang, Xuming Liu, Haojie Zeng, Jiyong Zeng
  • Patent number: 11960144
    Abstract: Disclosed are an optical lens, a camera module and a terminal camera. From an object side to an image side, the optical lens include: a first lens with a negative focal power, which has a convex object side surface and a concave image side surface; a stop; a second lens with a positive focal power, which has a convex object side surface and a concave image side surface; a third lens with a positive focal power, which has a convex object side surface and a concave image side surface; a fourth lens with a positive focal power, which has a convex object side surface and a convex image side surface; a fifth lens with a negative focal power, an object side surface of the fifth lens is convex at a paraxial region and an image side surface of the fifth lens is concave at a paraxial region; and a filter.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: April 16, 2024
    Assignee: JIANGXI LIANYI OPTICS CO., LTD.
    Inventors: Xiaozhi Yu, Haojie Zeng, Xuming Liu, Jiyong Zeng
  • Patent number: 11877043
    Abstract: Disclosed are an optical lens, a camera module and a camera. From an object side to an image side along an optical axis, the optical lens includes: a first lens having a positive focal power and a convex object side surface; a second lens having a negative focal power; a third lens having a negative focal power; a fourth lens having a negative focal power; a fifth lens having a positive focal power, an object side surface of the fifth lens is convex at a paraxial region thereof, and an image side surface of the fifth lens is concave at a paraxial region thereof; a stop disposed between the second and third lens; and a filter disposed between the fifth lens and an imaging plane. The camera module includes the optical lens and an image sensor, and the camera includes the camera module.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: January 16, 2024
    Assignee: JIANGXI LIANYI OPTICS CO., LTD.
    Inventors: Tian Zhang, Xuming Liu, Haojie Zeng, Jiyong Zeng
  • Patent number: 11866364
    Abstract: A salt bath for glass reinforcement, including a nitrate and a metal compound. The mass fraction of the nitrate is not less than 50%, and the nitrate is in a molten state. The metal compound is fused into the nitrate, and the metal compound contains the same metal element as the nitrate. The mass fraction of the metal element in the molecular formula corresponding to the metal compound is greater than the mass fraction in the molecular formula corresponding to the nitrate. Thus, compared with the existing salt bath, under the condition of the same mass, the salt bath can provide more effective amount of metal ions, thereby increasing the strength of glass after reinforcement, and at the same time, the lifetime of the salt bath is increased, reducing the waste of resources and environmental pollution.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: January 9, 2024
    Assignee: Chongqing Aureavia Hi-tech Glass Co., Ltd.
    Inventors: Wei Hu, Baoquan Tan, Xuming Liu
  • Patent number: 11841549
    Abstract: The present disclosure provides a wide-angle lens, including a first lens group having a negative focal power, a second lens group having a positive focal power, and an aperture stop disposed between the first lens group and the second lens group. The first lens group, from the object side to the imaging surface, sequentially includes a meniscus-shaped first lens having a negative focal power, a second lens having a negative focal power, and a third lens having a positive focal power. A concave surface of the first lens faces the imaging surface, and a concave surface of the second lens faces the imaging surface.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: December 12, 2023
    Assignee: JIANGXI LIANCHUANG ELECTRONIC CO., LTD.
    Inventors: Yumin Bao, Weijian Chen, Xuming Liu, Jiyong Zeng
  • Patent number: 11829005
    Abstract: The disclosure provides a wide-angle lens, an imaging module, and a camera. From an object side to an imaging plane, the wide-angle lens sequentially includes: a first lens and a second lens each having a negative refractive power, a convex object side surface, and a concave image side surface; a third lens having a positive refractive power and a convex image side surface; a fourth lens having a negative refractive power, a concave object side surface, and a convex image side surface; a stop; a fifth lens; a sixth lens; a seventh lens having a negative refractive power, a concave object side surface, and a concave image side surface; an eighth lens; and an optical filter. The fifth lens, the sixth lens, and the eighth lens each have a positive refractive power, a convex object side surface, and a convex image side surface.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: November 28, 2023
    Assignee: JIANGXI LIANCHUANG ELECTRONIC CO., LTD.
    Inventors: Wenzhe Wei, Xuming Liu, Jiyong Zeng
  • Patent number: 11604331
    Abstract: An optical imaging lens group, from an object side to an image side sequentially includes: a meniscus-shaped first lens having a negative refractive power and a convex surface facing the object side; a meniscus-shaped second lens having a negative refractive power and a convex surface facing the image side; an aperture stop; a third lens having a positive refractive power and two convex surfaces respectively at the object side and the image side; a fourth lens having a positive refractive power and two convex surfaces respectively at the object side and the image side; a fifth lens having a negative refractive power and two concave surfaces respectively at the object side and the image side; a sixth lens having a positive refractive power and two convex surfaces respectively at the object side and the image side; and a filter.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: March 14, 2023
    Assignee: JIANGXI LIANCHUANG ELECTRONIC CO., LTD.
    Inventors: Wenzhe Wei, Yumin Bao, Weijian Chen, Xuming Liu, Kemin Wang, Jiyong Zeng
  • Publication number: 20230049672
    Abstract: The disclosure provides an optical lens, a camera module and a camera. The optical lens, from an object side to an image side along an optical axis, sequentially includes a stop, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a filter. The optical lens meets the expression of: SAG8D0.5SAG8D1>0.35, where SAG8D0.5 represents a sagittal height at a position corresponding to half a diameter of an image side surface of the fourth lens, and SAG8D1 represents a sagittal height at a position corresponding to the diameter of an image side surface of the fourth lens.
    Type: Application
    Filed: October 8, 2022
    Publication date: February 16, 2023
    Inventors: Xuming Liu, Lili Xu, Haojie Zeng, Jiyong Zeng
  • Patent number: 11579409
    Abstract: The disclosure provides an infrared optical imaging lens, a camera module and a DMS. From an object side to an image side along an optical axis, the infrared optical imaging lens sequentially includes a stop, a first lens with a positive refractive power, a second lens with a positive refractive power, a third lens with a negative refractive power, and a filter. An object side surface of the first lens is convex, an image side surface of the first lens is concave. An object side surface of the second lens is concave, an image side surface of the second lens is convex. A paraxial portion of an object side surface of the third lens is convex, and a paraxial portion of an image side surface of the third lens is concave.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: February 14, 2023
    Assignee: JIANGXI LIANCHUANG ELECTRONIC CO., LTD.
    Inventors: Yumin Bao, Xiaobai Hong, Xuming Liu, Kemin Wang, Jiyong Zeng
  • Patent number: 11550124
    Abstract: The disclosure provides a camera lens, a camera module and vehicle camera. The camera lens sequentially includes a first group, a stop, and a second group along an optical axis from an object side to an imaging surface. The first group includes a biconcave first lens and a biconvex second lens. The second group includes a third lens, a fourth lens, a fifth lens and a sixth lens. The third lens has a positive refractive power, a convex object side surface and a concave image side surface. The fourth lens has a negative refractive power and is a biconcave lens. The fifth lens has a positive refractive power and is a biconvex lens. The sixth lens has a positive refractive power, a convex object side surface and a concave image side surface. The fourth lens and the fifth lens form a cemented body with a positive refractive power.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: January 10, 2023
    Assignee: JIANGXI LIANCHUANG ELECTRONIC CO., LTD.
    Inventors: Yumin Bao, Xinyue Zhang, Xuming Liu, Kemin Wang, Jiyong Zeng
  • Patent number: 11450136
    Abstract: The disclosure provides an optical lens, an imaging device, a fingerprint recognition module and a mobile terminal, along an optical axis from an object side to an image side, the optical lens sequentially including: a flat glass, a first lens, a stop, a second lens, a third lens, and an infrared filter. The optical lens satisfy a high-quality resolution, also have the advantages of small size, small distortion, and high relative illumination, they can effectively improve the rate of the fingerprint recognition, and more suitable for the design requirements of the full screen of the mobile phones. Meanwhile, the three lenses of the optical lens of the present disclosure all use low refractive index materials, which greatly reduces the production cost, and is more in line with the low-cost and high-performance development trend of the full screen of the mobile phone.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: September 20, 2022
    Assignee: JIANGXI LIANYI OPTICS CO., LTD.
    Inventors: Xiaozhi Yu, Haojie Zeng, Xuming Liu, Jiyong Zeng
  • Publication number: 20220276466
    Abstract: An optical imaging lens and an imaging equipment comprising: a first, second, and seventh lens each with focal power and a convex surface on an object side and a concave surface on an image side; a third lens, fourth, and fifth lens each with positive focal power and having a convex surface on the object side and a convex surface on the image side; a sixth lens with negative focal power, having an object side surface being a concave surface and an image side surface being a concave surface; and a diaphragm. The optical imaging lens has the characteristics of super large aperture, long focal length, and high resolution, and can meet the requirements for small field of view and high resolution, e.g., in vehicle-mounted devices.
    Type: Application
    Filed: May 20, 2022
    Publication date: September 1, 2022
    Inventors: Weijian CHEN, Xuming LIU, Jiyong ZENG