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:
Dec. 07, 2021
Filed:
Dec. 17, 2019
Mitutoyo Corporation, Kanagawa, JP;
Satoru Yoshida, Kanagawa, JP;
Tatsuya Nagahama, Kanagawa, JP;
Masafumi Yamanaka, Kanagawa, JP;
Hitoshi Isobe, Kanagawa, JP;
Naoto Oita, Tokyo, JP;
Koji Kubo, Tokyo, JP;
Yuko Shishido, Kanagawa, JP;
Nobuo Ohba, Kanagawa, JP;
Takahisa Ootake, Kanagawa, JP;
Hiroki Matsui, Kanagawa, JP;
Masanori Arai, Kanagawa, JP;
Shiro Igasaki, Kanagawa, JP;
Yuki Kurahashi, Tokyo, JP;
Hiroshi Sakai, Kanagawa, JP;
Yutaka Watanabe, Kanagawa, JP;
MITUTOYO CORPORATION, Kanagawa, JP;
Abstract
An image measurement apparatus, which functions as a non-contact profile-measuring device, includes: an image sensor as an image pick-up device; a variable focal length lens (liquid lens unit) disposed on an optical axis extending from a workpiece to the image sensor; and a controller (image-pickup lens controller and image measurement processor) configured to control the variable focal length lens and process a detected image by the image sensor. The image measurement apparatus, which also functions as a non-contact displacement-detecting device, includes: an image sensor; a variable focal length lens (liquid lens unit) disposed on an optical axis extending from the workpiece to the image sensor; and a controller (displacement-detection lens controller and profile measurement processor) configured to control the variable focal length lens and a detected image by the image sensor.