The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 2025
Filed:
Dec. 25, 2020
The University of Tokyo, Tokyo, JP;
Takao Someya, Tokyo, JP;
Ikue Kawashima, Tokyo, JP;
The University of Tokyo, Tokyo, JP;
Abstract
Uniform light irradiation to the measurement object is realized, and it is possible to obtain high resolution image information, to provide a reflective optical sensor. An optical sensor comprises a light irradiation unit for performing uniform light irradiation with respect to the measurement object, the viewing angle control plate for limiting the direction of the reflected light in the measurement object to the predetermined direction, a light detecting unit for acquiring image information showing the distribution of the reflected light obtained through the viewing angle control plate. The viewing angle control plate is a louver array film or a fiber optic plate.