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. 08, 2013

Filed:

Mar. 21, 2012
Applicants:

Kentaro Nemoto, Kawasaki, JP;

Masaoki Yamagata, Kawasaki, JP;

Tadashi Iwamoto, Hino, JP;

Nobuyoshi Machida, Kawasaki, JP;

Inventors:

Kentaro Nemoto, Kawasaki, JP;

Masaoki Yamagata, Kawasaki, JP;

Tadashi Iwamoto, Hino, JP;

Nobuyoshi Machida, Kawasaki, JP;

Assignee:

Mitutoyo Corporation, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/24 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed is a shape measurement device including: a light irradiation unit which irradiates linear light onto a work; an imaging element which images reflected light reflected by the work; and an image-forming lens which forms an image of the reflected light reflected by the work on an imaging plane of the imaging element, and a light irradiation plane of the light irradiation unit, a principal plane including a principal point of the image-forming lens, and the imaging plane of the imaging element satisfy a Scheimpflug principle. The shape measurement device further includes: an image obtaining region selection unit which divides the imaging plane of the imaging element into a plurality of regions, and selects, as an image obtaining region, a region for use in measurement from the plurality of regions in response to at least one of measurement accuracy and a size of a measurement range.


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