Patents Assigned to VISUAL TECHNOLOGY LABORATORY INC.
  • INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM
    Publication number: 20230380678
    Abstract: An information processing device including a calculation unit that calculates an evaluation function using a visibility threshold of a test subject obtained by performing a visual acuity examination on the test subject and using a parameter related to a visual object, and a spectral transmittance optimization unit that optimizes a spectral transmittance of a filter having a spectral transmittance to light from the visual object using the evaluation function when passed through the filter.
    Type: Application
    Filed: October 18, 2021
    Publication date: November 30, 2023
    Applicants: MITSUI CHEMICALS, INC., VISUAL TECHNOLOGY LABORATORY INC.
    Inventors: Daiki ITO, Taizo NISHIMOTO, Kenji SUZUKI, Shoko MATSUMURA, Noriaki ASADA, Yoshiki NAKAMURA, Minao YAMAMOTO
  • Visual function examination system and optical characteristic calculation system
    Patent number: 11129523
    Abstract: An analysis unit determines at least two boundaries by determining; in a coordinate system indicating a correlation between a luminance contrast value between a luminance of an attention portion and a luminance of a background portion, and a luminance average value of a visual target including the attention portion and the background portion; the boundary between a region where a subject has a visibility and a region where the subject does not have the visibility for each combination of stimulus values of a color stimulus of a visual target.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: September 28, 2021
    Assignees: VISUAL TECHNOLOGY LABORATORY INC., MITSUI CHEMICALS, INC.
    Inventors: Yoshiki Nakamura, Sueko Kanaya, Noriaki Asada, Shoko Matsumura, Akinori Nagatomo, Taizo Nishimoto
  • VISUAL FUNCTION EXAMINATION SYSTEM AND OPTICAL CHARACTERISTIC CALCULATION SYSTEM
    Publication number: 20190239741
    Abstract: An analysis unit determines at least two boundaries by determining; in a coordinate system indicating a correlation between a luminance contrast value between a luminance of an attention portion and a luminance of a background portion, and a luminance average value of a visual target including the attention portion and the background portion; the boundary between a region where a subject has a visibility and a region where the subject does not have the visibility for each combination of stimulus values of a color stimulus of a visual target.
    Type: Application
    Filed: July 3, 2017
    Publication date: August 8, 2019
    Applicants: VISUAL TECHNOLOGY LABORATORY INC., MITSUI CHEMICALS, INC.
    Inventors: Yoshiki NAKAMURA, Sueko KANAYA, Noriaki ASADA, Shoko MATSUMURA, Akinori NAGAMOTO, Taizo NISHIMOTO