Patents Examined by Mohamed Doumbia
  • Patent number: 11940268
    Abstract: The present disclosure discloses a contact angle measuring device, including a light source, a container, a photodetector, a bubble generating unit, and a processing unit. The container includes a first and a second side walls that are opposite. The first side wall is made of a light-transmitting material, the container is filled with a liquid with light transmission inside. The monochromatic light emitted by the light source passes through the first side wall and enters an interface between the first side wall and the liquid. The bubble generating unit is configured for generating a bubble that is in contact with an inner surface of the first side wall. The photodetector is configured for detecting light intensity distribution of the monochromatic light through the liquid.
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: March 26, 2024
    Assignees: Xiamen University of Technology, Riccino (Xiamen) Optical Inc.
    Inventors: Dong Sun, Luming Song, Xianjian Zhou, Hongyi Lin, Hong Liu, Wenzhang Zhu, Haijun Lin
  • Patent number: 11835448
    Abstract: There is described an equipment and method for analysis of a fluid, suspension, solution, dispersion or fluid emulsion that automatically analyzes the characteristic properties of the samples of the fluids, such as paints, enamels, and dyes, among others, so that adjustments can be made to the fluid to meet the optical properties such as color, opacity, hue, saturation (tinting power), covering and luminosity, from the spectrometric measurement technique by transmission analysis of film having radiated fixed thickness.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: December 5, 2023
    Inventor: Rogério Baptista Auad
  • Patent number: 11828646
    Abstract: Herein disclosed is an optoelectronic unit measuring device comprising an objective lens, an imaging lens, a photographing lens, and a focus adjustment module disposed in a first light path. The objective lens receives a first testing light and converts the first testing into a second testing light. The imaging lens receives the second testing light and converts the second testing light into a third testing light. The photographing lens receives the third testing light and measures beam characteristic. The focus adjustment module selectively provides a first light transmitting member in the first light path, and adjusts the third testing light to focus at a first focus position or a second focus position. Wherein the focus adjustment module comprises a first carrier plate having a first area with the first light transmitting member, and moves the first carrier plate to selectively align the first area with the first light path.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: November 28, 2023
    Assignee: CHROMA ATE INC.
    Inventors: Yu-Yen Wang, Kuo-Wei Huang, Szu-Yuan Weng
  • Patent number: 11821839
    Abstract: A scattered light detector comprises a first photodiode array comprising one or more photodiodes arranged in a planar, semicircular pattern on a substrate, each of the one or more photodiodes having an outer edge and an inner edge; and a notch perpendicular to the substrate and located adjacent the inner edge of each of the one or more diodes, and equidistant from the outer edges of each of the one or more photodiodes, the notch configured to accept an optical fiber oriented perpendicular to the plane of the one or more photodiodes. When there are two or more photodiodes, the photodiodes may be divided into two or more segments extending outwardly from the notch. Each of the photodiodes shares a common electrical ground. The planes of the one or more photodiodes of the first and second photodiode arrays are oriented parallel to each other and spaced a predetermined distance apart.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: November 21, 2023
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: John G Jones, David E. Zelmon, Frank K. Hopkins, Arianna M. McNamara, Michael D. Martin, Shamus P. NcNamara
  • Patent number: 11754445
    Abstract: The disclosure relates to an interferometer element for use in a spectrometer which includes a micromechanical Fabry-Perot filter element, which has at least a first mirror element, a second mirror element, and a third mirror element. Each of the first mirror element, the second mirror element, and the third mirror element are arranged in series in an optical path of the interferometer element, and at least one of a first distance between the first and second mirror elements, and a second distance between the second and third mirror elements is modifiable.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: September 12, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Ralf Noltemeyer, Benedikt Stein, Christian Huber, Christoph Schelling, Christoph Daniel Kraemmer, Reinhold Roedel
  • Patent number: 11733166
    Abstract: A fabrication method of a SERS substrate includes (a) preparing a hydrophilic membrane; (b) dipping the hydrophilic membrane in an alcohol; (c) immersing the hydrophilic membrane in a chloride ion aqueous solution; and (d) depositing Ag or Au nanoparticles on the hydrophilic membrane by suction filtration to form the SERS substrate. The hydrophilic membrane includes 10˜20 wt % PVDF, PTFE, PC, PES, nylon, or mixtures thereof, 10˜20 wt % PVP, and 0.2˜1.6 wt % PMMA, PHEMA, or mixtures thereof.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: August 22, 2023
    Inventors: Jenn-Jong Young, Cheng-Cheung Chen, Chia-Ying Chin, Xin-An Chen, Hui-Ju Yen, Ying-Chuan Chen, Hsin-Lun Hsieh