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:
Oct. 23, 2018
Filed:
Nov. 10, 2017
Keyence Corporation, Osaka, JP;
Yuji Akishiba, Osaka, JP;
Tatsuro Homma, Osaka, JP;
Keyence Corporation, Osaka, JP;
Abstract
To provide an optical-scanning-height measuring device capable of quickly and highly accurately measuring the height of the surface of a measurement object while being compactly configured. In order to obtain interference light appropriate for calculation of height, an optical path length of the reference light is adjusted in the reference section. Movable sectionsandsupported by a supporting sectionmove on linearly extending two linear guides, whereby the optical path length of the reference light changes. When the optical path length of the reference light is adjusted, the movable sectionsandare moved in opposite directions each other.