Patents by Inventor Yabin HU

Yabin HU 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: 20220236542
    Abstract: The present disclosure discloses a zoom lens assembly. The zoom lens assembly comprises, sequentially along an optical axis from an object side to an image side, a first lens group comprising a first lens and a second lens; a second lens group having a positive refractive power and comprising a third lens, a fourth lens and a fifth lens; a third lens group having a negative refractive power and comprising a sixth lens; and a fourth lens group having a positive refractive power and comprising a seventh lens and an eighth lens. At least one of the first lens to the eighth lens is an aspheric lens. By changing positions of at least two lens groups in the second lens group, the third lens group and the fourth lens group on the optical axis, the zoom lens assembly switches between a wide-angle state and a telephoto state, and a focal length of the zoom lens assembly changes linearly when the zoom lens assembly switches from the wide-angle state to the telephoto state.
    Type: Application
    Filed: November 17, 2021
    Publication date: July 28, 2022
    Applicant: ZHEJIANG SUNNY OPTICS CO., LTD.
    Inventors: Yabin HU, Liefeng ZHAO, Fujian DAI
  • Patent number: 11333855
    Abstract: The present disclosure discloses an imaging lens assembly. The imaging lens assembly includes, sequentially from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens and a fifth lens. An effective focal length f of the imaging lens assembly and an entrance pupil diameter EPD of the imaging lens assembly satisfy: f/EPD?1.8, and an incident angle of a chief ray corresponding to a maximal field-of-view incident on an object-side surface of the fourth lens CRA4<15°. The imaging lens assembly according to the present disclosure consists of 5 lenses, which can realize an imaging lens assembly having an ultra-thin large aperture and a good image quality.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: May 17, 2022
    Assignee: ZHEJIANG SUNNY OPTICAL CO., LTD
    Inventor: Yabin Hu
  • Publication number: 20220066183
    Abstract: Disclosed herein is an optical imaging lens group, including, in order from an object side to an image side along an optical axis: a first lens group having a refractive power, in which an image side surface of a lens closest to an imaging side is concave; a second and a third lens group having a refractive power; and a fourth lens group having a negative refractive power, in which an image side surface of a lens closest to the imaging side is concave and includes at least one inflection point, wherein the first lens group is a fixed group, and the second, third and fourth lens groups move on the optical axis to realize continuous zoom from a wide-angle end to a telephoto end; and an on-axis distance TTL and an effective focal length ft of the optical imaging lens group at the telephoto end satisfy: 0.8<TTL/ft<1.5.
    Type: Application
    Filed: August 2, 2021
    Publication date: March 3, 2022
    Applicant: ZHEJIANG SUNNY OPTICS CO., LTD.
    Inventors: Yabin HU, Fujian DAI, Liefeng ZHAO
  • Publication number: 20220066184
    Abstract: The disclosure provides a zoom lens assembly, which sequentially includes from an object side to an image side along an optical axis: a first lens group; a second lens group with a positive refractive power, spaced from the first lens group by a first air space and movable on the optical axis; a third lens group with a positive refractive power, spaced from the second lens group by a second air space and movable on the optical axis; and a fourth lens group, spaced from the third lens group by a third air space; wherein a Total Track Length (TTL) of the zoom lens assembly and a difference ?f between an effective focal length of the zoom lens assembly at a wide end and an effective focal length of the zoom lens assembly at a tele end satisfy 2.5<TTL/|?f|<4.0.
    Type: Application
    Filed: August 31, 2021
    Publication date: March 3, 2022
    Inventors: Qian ZHANG, Yabin HU, Fujian DAI, Liefeng ZHAO
  • Publication number: 20210373300
    Abstract: The disclosure provides a camera lens group, which sequentially includes, from an object side to an image side along an optical axis: a first lens group with a positive refractive power, sequentially including, along the optical axis, a first lens, a second lens and a third lens with refractive power respectively; and a second lens group with a negative refractive power, sequentially including, the optical axis, a fourth lens, a fifth lens, a sixth lens and a seventh lens with refractive power respectively, wherein a total effective focal length f of the camera lens group and an entrance pupil diameter (EPD) of the camera lens group meet f/EPD<1.4; and an effective focal length f1 of the first lens and a spacing distance T34 of the third lens and the fourth lens on the optical axis meet 3.0<f1/T34<5.0.
    Type: Application
    Filed: May 11, 2021
    Publication date: December 2, 2021
    Inventors: Yabin HU, Jian ZHANG, Liefeng ZHAO, Fujian DAI
  • Publication number: 20210319147
    Abstract: The present invention relates to an ultrathin omnidirectional vibration-isolation metasurface structure and a design method thereof. The omnidirectional vibration-isolation metasurface structure includes a flat plate and a vibration isolation metasurface structure arranged on the flat plate. The vibration isolation metasurface structure is designed in any closed shape according to the shape and position of a vibration source. The vibration isolation metasurface structure is composed of periodically arranged supercells. Each supercell includes j unit cells with a gradient index. The unit cell is in a zigzag shape. The total reflection of elastic waves at any incident angle is realized by designing an elastic wave metasurface with a sub-wavelength thickness in the present invention, so that a vibration isolation purpose is achieved.
    Type: Application
    Filed: June 17, 2021
    Publication date: October 14, 2021
    Inventors: Bing Li, Yabin Hu, Heyuan Huang, Wenzhi Wang, Chi Hou, Meiying Zhao, Xiaopeng Wan, Yixin Xu
  • Publication number: 20210278634
    Abstract: An optical imaging lens assembly is provided. The optical imaging lens includes a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), a fifth lens (E5), a sixth lens (E6) and a seventh lens (E7) which are provided in sequence from an object side to an image side along an optical axis and have refractive powers. The first lens has a positive refractive power. The fourth lens has a positive refractive power. The sixth lens has a negative refractive power. The seventh lens has a negative refractive power. An object-side surface (S7) of the fourth lens is a concave surface, and an image-side surface (S8) is a convex surface. An object-side surface (S9) of the fifth lens is a convex surface.
    Type: Application
    Filed: September 26, 2018
    Publication date: September 9, 2021
    Inventors: Yabin HU, Bo SONG, Ling DING
  • Publication number: 20210271053
    Abstract: The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens having refractive power. A center thickness CT6 of the sixth lens along the optical axis and a spaced interval T56 between the fifth lens and the sixth lens along the optical axis satisfy: 1.5<CT6/T56<2.6. A relative F number Fno of the optical imaging lens assembly satisfies: Fno?1.7.
    Type: Application
    Filed: September 29, 2020
    Publication date: September 2, 2021
    Inventors: Yabin HU, Liefeng ZHAO, Fujian DAI
  • Publication number: 20210215909
    Abstract: The disclosure discloses an optical imaging system. The optical imaging system includes, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens has a focal power, and an object side surface thereof is a convex surface; the second lens has a focal power; the third lens has a focal power, and an image side surface thereof is a convex surface; the fourth lens has a focal power, an object side surface thereof is a convex surface, and an image side surface thereof is a concave surface; the fifth lens has a positive focal power, and an object side surface thereof is a convex surface; and the sixth lens has a negative focal power, and an object side surface thereof is a concave face.
    Type: Application
    Filed: March 8, 2019
    Publication date: July 15, 2021
    Inventors: Yabin HU, Tao FENG
  • Publication number: 20210215907
    Abstract: The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. Each of the first lens to the seventh lens has refractive power. The first lens has positive refractive power, and the third lens has negative refractive power. Half of a diagonal length ImgH of an effective pixel area on an imaging plane of the optical imaging lens assembly satisfies: ImgH>5 mm; and a relative F number Fno of the optical imaging lens assembly satisfies Fno<1.6.
    Type: Application
    Filed: March 30, 2021
    Publication date: July 15, 2021
    Applicant: ZHEJIANG SUNNY OPTICS CO., LTD.
    Inventors: Yabin HU, Fujian DAI, Liefeng ZHAO
  • Publication number: 20210208368
    Abstract: The present disclosure provides an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens having positive refractive power; a second lens having positive refractive power and a convex object-side surface; and a third lens having negative refractive power. A distance TTL along the optical axis from an object-side surface of the first lens to an imaging plane of the optical imaging lens assembly and half of a diagonal length ImgH of an effective pixel area on the imaging plane satisfy 2.0<TTL/ImgH<2.5.
    Type: Application
    Filed: March 19, 2021
    Publication date: July 8, 2021
    Applicant: ZHEJIANG SUNNY OPTICS CO., LTD.
    Inventors: Yabin HU, Fujian DAI, Liefeng ZHAO
  • Patent number: 11054611
    Abstract: The present disclosure discloses an optical imaging lens assembly including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens sequentially from an object side to an image side along an optical axis. Each of the first lens and the fifth lens has a positive refractive power. Each of the second lens, the third lens, and the fourth lens has a positive refractive power or a negative refractive power. An object-side surface of the first lens and an image-side surface of the fifth lens are convex surfaces. An image-side surface of the second lens, an object-side surface of the sixth lens, and an image-side surface of the sixth lens are concave surfaces. A total effective focal length f of the optical imaging lens assembly and an entrance pupil diameter EPD of the optical imaging lens assembly satisfy: f/EPD?1.8.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: July 6, 2021
    Assignee: Zhejiang Sunny Optical Co., Ltd
    Inventors: Kaiyuan Zhang, Bo Song, Yabin Hu
  • Patent number: 11029495
    Abstract: The present disclosure discloses an optical imaging lens assembly. The optical imaging lens assembly includes, sequentially along an optical axis from an object side to an image side, a first lens to a fifth lens. The first lens has a positive refractive power, and an object-side surface thereof is a convex surface. The second lens has a negative refractive power, an object-side surface thereof is a convex surface, and an image-side surface thereof is a concave surface. The third lens has a positive refractive power or a negative refractive power. The fourth lens has a positive refractive power, and an object-side surface thereof is a concave surface. The fifth lens has a negative refractive power, and an image-side surface thereof is a convex surface. An effective focal length f1 of the first lens and an effective focal length f2 of the second lens satisfy: ?0.9<f1/f2<?0.5.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: June 8, 2021
    Assignee: ZHEJIANG SUNNY OPTICAL CO., LTD.
    Inventors: Kaiyuan Zhang, Ming Li, Yabin Hu
  • Publication number: 20210149164
    Abstract: An optical imaging lens group sequentially includes, from an object side to an image side along an optical axis, a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), a fifth lens (E5), a sixth lens (E6), a seventh lens (E7) and an eighth lens (E8). The first lens has positive refractive power, and both an object-side surface and an image-side surface thereof are convex surfaces. The second lens has refractive power, and an object-side surface thereof is a concave surface. The third lens has refractive power. The fourth lens has negative refractive power. The fifth lens has positive refractive power. The sixth lens has refractive power. The seventh lens has refractive power, and an object-side surface thereof is a concave surface. The eighth lens has negative refractive power.
    Type: Application
    Filed: May 5, 2019
    Publication date: May 20, 2021
    Inventors: Tao FENG, Yabin HU
  • Publication number: 20210141195
    Abstract: The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens having positive refractive power; a second lens having refractive power; a third lens having positive refractive power with a concave object-side surface and a convex image-side surface; a fourth lens having positive refractive power with a concave object-side surface and a convex image-side surface; and a fifth lens having refractive power. Half of a maximal field-of-view Semi-FOV of the optical imaging lens assembly satisfies: Semi-FOV>48°.
    Type: Application
    Filed: September 28, 2020
    Publication date: May 13, 2021
    Inventors: Yabin HU, Fujian DAI, Liefeng ZHAO
  • Patent number: 10996438
    Abstract: The present disclosure discloses an imaging lens assembly which includes, sequentially from an object side to an image side along an optical axis, a first lens to a fifth lens. The first lens has a positive refractive power and a convex object-side surface. The second lens has a negative refractive power, a concave object-side surface and a concave image-side surface. The third lens has a negative refractive power. The fourth lens has a positive or a negative refractive power. The fifth lens has a positive or a negative refractive power, a concave object-side surface, and an image-side surface of the fifth lens is a convex surface or a plane. An air spacing T23 between the second lens and the third lens on the optical axis and an air spacing T34 between the third lens and the fourth lens on the optical axis satisfy: 1.0?T23/T34<2.0.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: May 4, 2021
    Assignee: ZHEJIANG SUNNY OPTICAL CO., LTD
    Inventors: Saifeng Lv, Yabin Hu, Jianke Wenren
  • Patent number: 10984238
    Abstract: The embodiment of the present invention provides a semi-supervised automatic marking method for spartina alterniflora in a hyperspectral image. According to the semi-supervised automatic marking method for spartina alterniflora in a hyperspectral image provided by the present invention, based on the dimensionality reduction on 108-dimensional data of 18 wave bands, unsupervised clustering is performed by the fast clustering algorithm based on the local density, and then the clustering result is matched with a marked spartina alterniflora data set, so that completely automatic marking of the data is realized, and automatic marking for spartina alterniflora is realized. The embodiment of the present invention also provides a semi-supervised automatic marking device for spartina alterniflora in a hyperspectral image. Through the technical scheme provided by the embodiment of the present invention, recognition and marking for spartina alterniflora can be realized accurately and effectively.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: April 20, 2021
    Assignee: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
    Inventors: Xin Liu, Yuqiang Sun, Guangbo Ren, Yabin Hu, Hongzhan Sun
  • Patent number: 10976523
    Abstract: An optical imaging lens assembly is provided. The optical imaging lens assembly includes, sequentially along an optical axis from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The first lens has a positive refractive power, the second lens and the seventh lens have a negative refractive power, and the third, fourth, fifth, and sixth lenses have a positive refractive power or a negative refractive power. Object-side surfaces of the first lens and the second lens are a convex surface, object-side surfaces of the fourth lens and the seventh lens are a concave surface, and image-side surfaces of the first, second, and seventh lens are a concave surface. A total effective focal length f and an entrance pupil diameter EPD of the optical imaging lens assembly satisfy: f/EPD?1.70.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: April 13, 2021
    Assignee: ZHEJIANG SUNNY OPTICAL CO., LTD
    Inventors: Bo Song, Jianke Wenren, Kaiyuan Zhang, Yabin Hu
  • Publication number: 20210048621
    Abstract: The present disclosure discloses an imaging lens assembly. The imaging lens assembly includes, sequentially from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens and a fifth lens. An effective focal length f of the imaging lens assembly and an entrance pupil diameter EPD of the imaging lens assembly satisfy: f/EPD?1.8, and an incident angle of a chief ray corresponding to a maximal field-of-view incident on an object-side surface of the fourth lens CRA4<15°. The imaging lens assembly according to the present disclosure consists of 5 lenses, which can realize an imaging lens assembly having an ultra-thin large aperture and a good image quality.
    Type: Application
    Filed: September 20, 2017
    Publication date: February 18, 2021
    Inventor: Yabin HU
  • Patent number: 10921560
    Abstract: An optical imaging lens assembly is disclosed. The optical imaging lens assembly includes, sequentially along an optical axis from an object side to an image side, a first lens to a fifth lens. The first lens may have a positive refractive power and a concave object-side surface. The second lens may have a positive or a negative refractive power and a concave object-side surface. The third lens may have a positive or a negative refractive power. The fourth lens may have a positive refractive power and a convex image-side surface. The fifth lens may have a negative refractive power, and an object-side surface of the fifth lens and an image-side surface of the fifth lens may both be concave surfaces. A center thickness CT3 of the third lens on the optical axis and a center thickness CT4 of the fourth lens on the optical axis satisfy: CT3/CT4?1.5.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: February 16, 2021
    Assignee: ZHEJIANG SUNNY OPTICAL CO., LTD
    Inventors: Yabin Hu, Kaiyuan Zhang, Bo Song