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:
Mar. 11, 2025
Filed:
Nov. 25, 2019
3m Innovative Properties Company, St. Paul, MN (US);
Masaru Iwasawa, Kanagawa, JP;
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
To provide a position detection system, a position detection method, an angle detection method, and a marker that enable detection of a position, adjustment of a position, detection of an angle, and the like of a movable body with respect to a stationary body to be easily performed. Means for solving problem: A position detection system is a position detection system for detecting a position N of a movable body moving with respect to a stationary body, the position detection system including a light source provided in one of the stationary body and the movable body, an imaging unit provided in one of the stationary body and the movable body, a marker provided in the other of the stationary body and the movable body, and a position detecting unit configured to detect a position of the movable body with respect to the stationary body based on luminance of an image of the marker acquired by the imaging unit, wherein the marker includes a reflective layer, and a light control layer provided in the reflective layer, and the light control layer transmits light having an angle of incidence with respect to the main surface being within a predetermined threshold value.