Patents by Inventor Shan Fan

Shan Fan 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).

  • Imaging optical system
    Patent number: 11448865
    Abstract: An imaging optical system includes a primary reflecting mirror, a secondary reflecting mirror, a tertiary reflecting mirror, and an aperture stop. The imaging optical system has a field of view, a focal length of the field of view that is defined as FFL, and an effective aperture of a field of view entrance pupil that is defined as FEPD. The FFL and the FEPD at a central field of view are greater than that at the edge field of views, and the FFL and the FEPD change continuously.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: September 20, 2022
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Jun Zhu, Ben-Qi Zhang, Guo-Fan Jin, Shou-Shan Fan
  • Method for generating electrical energy
    Patent number: 11437628
    Abstract: A method for generating electrical energy includes providing an electrical energy generating element. The electrical energy generating element includes a first porous electrode, an eggshell membrane, and a second porous electrode stacked on each other in that order. The electrical energy generating element has a first side and a second side opposite to the first side. A liquid having positive ions and negative ions is allowed to penetrate the electrical energy generating element from the first side to the second side.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: September 6, 2022
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Dan Gao, Chang-Hong Liu, Shou-Shan Fan
  • Electron emission source based on graphene layer and method for making the same
    Patent number: 11437213
    Abstract: An electron emission source is provided. The electron emission source includes a first electrode, an insulating layer, and a second electrode. The first electrode, the insulating layer, and the second electrode are successively stacked with each other. the second electrode is a graphene layer, and the graphene layer is an electron emission end to emit electron. A thickness of the graphene layer ranges from about 0.1 nanometers to about 50 nanometers.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: September 6, 2022
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Xin-He Yang, Peng Liu, Shou-Shan Fan
  • Method for analyzing tolerance distributions in a freeform surface mirror of an optical system
    Patent number: 11435261
    Abstract: A method for analyzing distribution of tolerances on a freeform surface in an optical system. Establishes a freeform surface imaging optical system. A plurality of fields is selected, and maximum and minimum margins of wavefront errors in each field are defined. One freeform surface in one field is selected, an isolated point jumping model is established, and an isolated point is placed in different areas of the freeform surface of the one field. A local figure error with extreme values corresponding to each field is resolved, based on the maximum and minimum margins of wavefront errors, and the local surface tolerance distributions of the freeform surface in the plurality of fields are integrated together.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: September 6, 2022
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Jun Zhu, Xiao-Fei Wu, Yu-Ting Deng, Guo-Fan Jin, Shou-Shan Fan
  • Workload balancing to achieve a global workload balance
    Patent number: 11436058
    Abstract: Embodiments of the present disclosure relate to a new approach for workload balancing in a system. A computer-implemented method comprises obtaining a configuration of a system, wherein the configuration includes a connection relationship between components in the system. The method further comprises determining a workload threshold of a given component in the components based on the configuration, wherein a workload threshold of an upstream component of the given component is associated with a workload limit of the upstream component and a workload limit of the given component. The method further comprises determining a utilization rate of the given component based at least partially on a workload amount of the given component, the workload threshold of the given component, and the workload threshold of the upstream component.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: September 6, 2022
    Assignee: International Business Machines Corporation
    Inventors: Nicolas M. Clayton, Shan Fan, Yongjie Gong, Yang Liu, Xue Qiang Zhou
  • METHOD FOR DESIGNING NONSYMMETRIC FREEFORM SURFACE OPTICAL SYSTEM
    Publication number: 20220260829
    Abstract: The present application relates to a method for designing a nonsymmetric freeform surface optical system, and the method including the following steps establishing an initial plane system. The initial plane system is consistent with the expected system structure, but there is no focal power in the initial plane system. The image plane tilt angle of the initial plane system is defined as ?. The point-by-point method is used to calculate the coordinates and normal vectors of the data points used to construct the freeform surface. The iterative optical system is obtained by iteration; and the iterative optical system is optimized.
    Type: Application
    Filed: June 17, 2021
    Publication date: August 18, 2022
    Inventors: YI-LIN TAN, JUN ZHU, GUO-FAN JIN, SHOU-SHAN FAN
  • METHOD FOR DESIGNING FREEFORM CONCAVE GRATING IMAGING SPECTROMETER
    Publication number: 20220252871
    Abstract: A method for designing a freeform concave grating imaging spectrometer includes selecting a series of light rays incident from different positions of a slit as characteristic light rays. The coordinates and normal directions of characteristic data points at intersections of the characteristic light rays and a surface of a freeform concave grating are calculated. A freeform surface shape of the freeform concave grating is obtained by fitting, so that an initial structure is obtained. Then the initial structure is optimized.
    Type: Application
    Filed: April 20, 2021
    Publication date: August 11, 2022
    Inventors: BEN-QI ZHANG, JUN ZHU, YI-LIN TAN, GUO-FAN JIN, SHOU-SHAN FAN
  • NONSYMMETRIC FREEFORM SURFACE OPTICAL SYSTEM
    Publication number: 20220252853
    Abstract: The present application relates to a nonsymmetric freeform surface optical system including a primary reflecting mirror, a secondary reflecting mirror, and a tertiary reflecting mirror. A light beam from an object is reflected on the primary reflecting mirror to form a first reflected light beam, the first reflected light beam irradiates the secondary reflecting mirror and is reflected to form a second reflected light beam, the second reflected light beam irradiates the third reflecting mirror and is reflected to form a third reflected light beam, and the third reflected light beam reaches an image surface to form an image. The nonsymmetric freeform surface optical system has no rotational symmetry and no meridional symmetry.
    Type: Application
    Filed: June 17, 2021
    Publication date: August 11, 2022
    Inventors: Jun Zhu, Yi-Lin Tan, Guo-Fan Jin, Shou-Shan Fan
  • Method for designing freeform surface off-axial three-mirror imaging system
    Patent number: 11409101
    Abstract: A method of designing an freeform surface off-axial three-mirror imaging system is provided. The method includes: establishing an initial system and T (T?2) object-image relationships according to a design goal, and selecting M feature fields for each object-image relationship; using feature rays of the T object-image relationships to construct a freeform surface system by using the initial system; step (S3), the freeform surface system obtained in step (S2) is used as another initial system, using iterative process to reduce a deviation between actual intersection points and ideal target points of the feature rays and feature surfaces, iteratively reconstructing free-form surfaces in the free-form surface system.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: August 9, 2022
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Rui-rui Tang, Jun Zhu, Guo-Fan Jin, Shou-Shan Fan
  • LITHIUM METAL ANODE AND METHOD FOR MAKING THE SAME
    Publication number: 20220246909
    Abstract: A method of making a lithium metal anode, comprises: S1, preparing a carbon nanotube material; S2, adding the carbon nanotube material to an organic solvent, and ultrasonically agitating the organic solvent with the carbon nanotube material to form a flocculent structure; S3, rinsing the flocculent structure with water; S4, freeze-drying the flocculent structure in vacuum environment to obtain a carbon nanotube sponge preform; S5, depositing a carbon layer on the carbon nanotube sponge preform to form a carbon nanotube sponge: and S6, injecting molten lithium into the carbon nanotube sponge in an oxygen-free environment, and cooling the molten lithium and the carbon nanotube sponge to form a lithium metal anode.
    Type: Application
    Filed: August 3, 2021
    Publication date: August 4, 2022
    Inventors: JING WANG, JIA-PING WANG, SHOU-SHAN FAN
  • GLYCERYL ETHER EPOXY RESIN AND METHOD FOR MAKING THE SAME
    Publication number: 20220235165
    Abstract: A glyceryl ether epoxy resin and a method of making it are provided. The glyceryl ether epoxy resin is a cross-linked polymer obtained by a ring-opening reaction of a glyceryl ether polymer and a polyamine compound. The glyceryl ether polymer is a glycidyl ether polymer comprising at least two epoxy groups, and the polyamine compound comprises at least two amine groups. The cross-linked polymer is a cross-linked three-dimensional network structure, the cross-linked polymer comprises a main chain and a plurality of hydroxyl groups, and the plurality of hydroxyl groups are located on the main chain. An epoxy structure of the glyceryl ether polymer is located on the main chain.
    Type: Application
    Filed: June 1, 2021
    Publication date: July 28, 2022
    Inventors: ZHEN-HAN FANG, JIA-PING WANG, SHOU-SHAN FAN
  • TEST DEVICE AND METHOD FOR TESTING AN OXIDATION POTENTIAL OF AN ELECTROLYT
    Publication number: 20220236217
    Abstract: A test device for testing an oxidation potential of an electrolyte is provided. The test device comprises a cavity, a test unit, a detector, a processing unit, and a display. The test unit comprises a positive plate comprising a first through hole, a negative plate comprising a second through hole, a first infrared window covering the first through hole, a second infrared window covering the second through hole, and an electrolyte located between the positive electrode plate and the negative electrode plate. The first through hole and the second through hole penetrate each other. The first infrared window, the positive plate, the negative plate, and the second infrared window are stacked with each other.
    Type: Application
    Filed: June 1, 2021
    Publication date: July 28, 2022
    Inventors: ZHEN-HAN FANG, JIA-PING WANG, SHOU-SHAN FAN
  • LITHIUM ION BATTERY ELECTROLYTE AND METHOD FOR MAKING THE SAME
    Publication number: 20220238917
    Abstract: A lithium ion battery electrolyte comprising a glyceryl ether epoxy resin gel is provided. The glyceryl ether epoxy resin gel comprises a glyceryl ether epoxy resin and an electrolyte. The glyceryl ether epoxy resin is a cross-linked polymer obtained by a ring-opening reaction of a glyceryl ether polymer and a polyamine compound. The glyceryl ether polymer is a glycidyl ether polymer comprising at least two epoxy groups, and the polyamine compound comprises at least two amine groups. The cross-linked polymer comprises a main chain and a plurality of hydroxyl groups, and the plurality of hydroxyl groups are located on the main chain. The electrolyte comprises a lithium salt and a non-aqueous solvent. The lithium salt and the glyceryl ether epoxy resin are dispersed in the non-aqueous solvent. A method of making the lithium ion battery electrolyte is also provided.
    Type: Application
    Filed: June 1, 2021
    Publication date: July 28, 2022
    Inventors: ZHEN-HAN FANG, JIA-PING WANG, SHOU-SHAN FAN
  • METHOD OF TESTING AN OXIDATION POTENTIAL OF AN ELECTROLYTE
    Publication number: 20220238933
    Abstract: A method of testing an oxidation potential of an electrolyte is provided. The method comprises: arranging an electrolyte between a working electrode and an auxiliary electrode to form an electrolytic cell; applying a first voltage U1 between the working electrode and the auxiliary electrode for a time ?t; applying a second voltage U2 between the working electrode and the auxiliary electrode for the time ?t, wherein U2=U1+?U; likewise, applying a nth voltage Un between the working electrode and the auxiliary electrode for the time ?t, to obtain a change curve of a current and an electric potential of the electrolytic cell with time, wherein Un=U(n?1)+?U, and n is an integer greater than or equal to 4; and obtaining the oxidation potential of the lithium ion battery electrolyte according to the change curve.
    Type: Application
    Filed: June 1, 2021
    Publication date: July 28, 2022
    Inventors: ZHEN-HAN FANG, JIA-PING WANG, SHOU-SHAN FAN
  • METHOD FOR DESIGNING IMAGING OPTICAL SYSTEM
    Publication number: 20220229289
    Abstract: A method for designing an imaging optical system is a point-by-point calculation method based on characteristic light rays (FLR) and characteristic data points (FDP). The basic function of the point-by-point calculation method includes the following steps: according to the given object-image relationship, based on Fermat's principle and the law of retraction and reflection, calculating the propagation path of the FLR passing through a system and the FDP on each optical surface, to obtain a surface shape equation of each optical surface by fitting; and repeating the above process, to solve the surface shape equation of each optical surface one by one, and finally complete the design and solution of the entire imaging optical system.
    Type: Application
    Filed: April 19, 2021
    Publication date: July 21, 2022
    Inventors: BEN-QI ZHANG, JUN ZHU, GUO-FAN JIN, SHOU-SHAN FAN
  • IMAGING OPTICAL SYSTEM
    Publication number: 20220229277
    Abstract: An imaging optical system includes a primary reflecting mirror, a secondary reflecting mirror, a tertiary reflecting mirror, and an aperture stop. The imaging optical system has a field of view, a focal length of the field of view that is defined as FFL, and an effective aperture of a field of view entrance pupil that is defined as FEPD. The FFL and the FEPD at a central field of view are greater than that at the edge field of views, and the FFL and the FEPD change continuously.
    Type: Application
    Filed: April 19, 2021
    Publication date: July 21, 2022
    Inventors: JUN ZHU, BEN-QI ZHANG, GUO-FAN JIN, SHOU-SHAN FAN
  • Method for designing hybrid surface optical system
    Patent number: 11386246
    Abstract: A method for designing a hybrid surface optical system comprises establishing a first initial system; keeping the first initial system unchanged and calculating a plurality of first feature data points, and fitting the first feature data points to obtain a spherical surface; repeating such steps until all spherical surfaces are obtained; calculating a plurality of second feature data points, and fitting the plurality of second feature data points to obtain an aspheric surface; repeating such steps until all aspheric surfaces are obtained; calculating a plurality of third feature data points, and fitting the plurality of third feature data points to obtain a freeform surface; repeating such steps until all freeform surfaces are obtained.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: July 12, 2022
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Jun Zhu, Tong-Tong Gong, Guo-Fan Jin, Shou-Shan Fan
  • Photocatalytic structure and method for making the same
    Patent number: 11376577
    Abstract: The disclosure relates to a photocatalytic structure. The photocatalytic structure includes a substrate, a photocatalytic active layer, and a metal layer. The substrate, the photocatalytic active layer, and the metal layer are arranged in succession. The substrate includes a base and a patterned bulge layer on a surface of the base. The patterned bulge layer is a net-like structure comprising a plurality of strip-shaped bulges intersected with each other and a plurality of indents defined by the plurality of strip-shaped bulges. The plurality of strip-shaped bulges is an integrated structure. The photocatalytic active layer is on the surface of the patterned bulge layer. The metal layer includes a plurality of nanoparticles located on the surface of the photocatalytic active layer away from the substrate.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: July 5, 2022
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Ying-Cheng Wang, Yuan-Hao Jin, Xiao-Yang Xiao, Tian-Fu Zhang, Qun-Qing Li, Shou-Shan Fan
  • Secondary electron probe and secondary electron detector
    Patent number: 11373841
    Abstract: A secondary electron probe is provided. The secondary electron probe comprises a porous carbon material layer. The porous carbon material layer consists of a plurality of carbon material particles and a plurality of micro gaps, the plurality of micro gaps are located between the plurality of carbon material particles. The porous carbon material layer is an electronic blackbody. A secondary electron detector and a scanning electron microscope probe using the secondary electron probe are also provided.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: June 28, 2022
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Ke Zhang, Guo Chen, Peng Liu, Kai-Li Jiang, Shou-Shan Fan
  • Freeform surface reflective infrared imaging system
    Patent number: 11371889
    Abstract: The present invention relates to a freeform surface reflective infrared imaging system comprising a primary mirror, a secondary mirror, a tertiary mirror, and an infrared light detector. Each reflective surface of the primary mirror, the secondary mirror, and the tertiary mirror is an xy polynomial freeform surface. A field of view of the freeform surface reflective infrared imaging system is larger than or equal to 40°×30°. An F-number of the freeform surface reflective infrared imaging system is less than or equal to 1.39.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: June 28, 2022
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Wei-Chen Wu, Jun Zhu, Guo-Fan Jin, Shou-Shan Fan