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:
May. 02, 2017
Filed:
Jan. 20, 2015
Keyence Corporation, Osaka, JP;
Hayato Oba, Osaka, JP;
Koji Takahashi, Osaka, JP;
Keyence Corporation, Osaka, JP;
Abstract
The image measurement device includes: a side-emitting illumination device that has a light amount distribution sharply changing in a photographing axis direction of a camera, and irradiates a workpiece on a movable stage with illumination light from a side; a measurement target place specifying part that specifies a measurement target place on a workpiece image; an illumination position adjusting part that moves the side-emitting illumination device in the photographing axis direction, to adjust a relative position of the side-emitting illumination device to the movable stage; a relative position identifying part that obtains a change in luminance in the measurement target place with respect to two or more of the workpiece images photographed by making the relative position different, to identify a relative position; an imaging control part that controls the illumination position adjusting part based on the identified relative position and drives the side-emitting illumination device.