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:
Feb. 19, 2019
Filed:
Jul. 27, 2017
Katsunobu Yoshida, Kanagawa, JP;
Shin Aoki, Kanagawa, JP;
Katsunobu Yoshida, Kanagawa, JP;
Shin Aoki, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A measurement tool includes a first member and a measurement member. The first member has a surface including a chart to be used for calibration of a stereo camera. The measurement member is arranged on the surface of the first member. The measurement member includes a light source and a second member. The light source is configured to emit light with a uniform intensity regardless of a position on the surface. The second member is configured to cover the light source and radiate the light from a plurality of first holes and a plurality of second holes having a size larger than the first hole.