Patents Assigned to HELMEE IMAGING OY
  • Patent number: 9423245
    Abstract: An arrangement for optically measuring the surface of an optionally glossy target object, includes: a diffusive, semi-transparent illumination structure defining a hollow surface shape configured to surround the target object at least partially, the surface being further provided with at least two apertures, a number of light sources optically coupled to the diffusive illumination structure for illuminating the target object via the surface of the illumination structure, at least two imaging devices, each configured to image the target object via an aperture, and a control entity configured to instruct the number of light sources to form a sequence of predetermined illumination patterns illuminating the target object, to instruct the at least two imaging devices to obtain an image of the target object relative to each illumination pattern, and to derive, through the utilization of the patterns utilized and images obtained, a predetermined surface-related property of the target object.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: August 23, 2016
    Assignee: HELMEE IMAGING OY
    Inventors: Heimo Keranen, Petri Lehtonen