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:
Jan. 29, 2019
Filed:
Feb. 13, 2018
Keyence Corporation, Osaka, JP;
Tsuyoshi Yamagami, Osaka, JP;
Masato Shimodaira, Osaka, JP;
Keyence Corporation, Osaka, JP;
Abstract
An exposure time is changed stepwise, a light receiving amount output from a light receiving section is obtained at each exposure time, which is changed stepwise, and height image data, in which each pixel value indicates a height of each portion of a surface of a measuring object, is generated based on the obtained light receiving amount. It is determined whether each pixel constituting each height image is valid or invalid based on the obtained light receiving amount. An exposure time, which corresponds to a height image in which the number of pixels determined to be valid satisfies a predetermined condition, is set as a set value.