Patents Assigned to Machine Vision Lighting Inc.
  • Publication number: 20220412727
    Abstract: An illumination device has a light source unit, a lens unit, and a filter unit An imaging device receives object light, generated by the illumination light, from the measurement object at a predetermined observation solid angle, and pixels of the imaging device can each identify the different light wavelength ranges. A processing device includes an arithmetic unit configured to obtain a normal vector at each point of the measurement object corresponding to each pixel from inclusion relation between the plurality of solid angle regions, constituting the object light, and the predetermined observation solid angle, and a shape reconstruction unit configured to reconstruct the shape of the measurement object.
    Type: Application
    Filed: November 26, 2020
    Publication date: December 29, 2022
    Applicants: Machine Vision Lighting Inc., MITUTOYO CORPORATION
    Inventors: Shigeki MASUMURA, Yasuhiro TAKAHAMA, Jyota MIYAKURA, Masaoki YAMAGATA
  • Patent number: 10883944
    Abstract: Provided is an inspection lighting device with which, even when changes in light that occur at respective feature points on an object to be inspected are small, the amounts of those changes in light can be determined across the entire field-of-view range, and the feature points can be detected under exactly the same conditions.
    Type: Grant
    Filed: March 17, 2018
    Date of Patent: January 5, 2021
    Assignee: Machine Vision Lighting Inc.
    Inventor: Shigeki Masumura
  • Patent number: 9891176
    Abstract: In the inspection lighting device, between a surface light source for emitting an inspection light and the inspection object, at least one shielding mask is disposed, and a lens is disposed on a side closer to the inspection object than the shielding mask such that the shielding mask is positioned across the focus position of this lens as a center. In an irradiation solid angle of the inspection light for the inspection object formed when the light emitted from the surface light source is irradiated on to the inspection object by the lens the shielding mask forms a dark area. So that, in accordance with a change in reflection, transmission, scattering occurring at a feature point on the inspection object, a shape, a size, a tilt of the irradiation solid angle of the inspection light can be changed.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: February 13, 2018
    Assignee: Machine Vision Lighting Inc.
    Inventor: Shigeki Masumura