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.

Date of Patent:
Oct. 21, 2014

Filed:

Jan. 13, 2012
Applicants:

Naoki Shirai, Kure, JP;

Hiroyuki Yoshida, Kure, JP;

Inventors:

Naoki Shirai, Kure, JP;

Hiroyuki Yoshida, Kure, JP;

Assignee:

Mitutoyo Corporation, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/20 (2006.01); G01N 21/86 (2006.01); G01V 8/00 (2006.01); G01B 11/24 (2006.01); H04N 5/235 (2006.01); H04N 5/232 (2006.01); G02B 7/32 (2006.01);
U.S. Cl.
CPC ...
G01B 11/24 (2013.01); H04N 5/2354 (2013.01); H04N 5/23212 (2013.01); H04N 5/2353 (2013.01); G02B 7/32 (2013.01); H04N 5/2352 (2013.01);
Abstract

A vision measuring device includes: an imaging device which images a workpiece; an illumination device which irradiates the workpiece with light; a position control system which controls an in-focus position of the imaging device and outputs the in-focus position as information representing a position in an in-focus axis direction; and a control device which, when the position control system controls the in-focus position, controls the frame rate of the imaging device, and controls at least one of the imaging device and the illumination device such that an amount of light to be received by the imaging device becomes substantially constant.


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