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:
Sep. 08, 2015
Filed:
Nov. 18, 2013
Mitutoyo Corporation, Kanagawa, JP;
Toshio Kawasaki, Kawasaki, JP;
MITUTOYO CORPORATION, Kanagawa, JP;
Abstract
In an image measuring device that performs, on a work piece to be measured, low brightness continuous illumination and one of stroboscopic illumination and continuous illumination with high brightness, a common high-brightness LED is used, and driving circuits are switched between pseudo-continuous illumination and one of stroboscopic illumination and continuous illumination. In the pseudo-continuous illumination, an average brightness is reduced by pulse lighting. In the stroboscopic illumination, high brightness light is emitted instantaneously. The switching between the pseudo-continuous illumination and one of the stroboscopic illumination and continuous illumination may be performed by changing a lighting cycle of the high-brightness LED.