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:
Apr. 25, 2023
Filed:
Sep. 04, 2020
Mitutoyo Corporation, Kanagawa, JP;
Raiitsu Suzuki, Kanagawa, JP;
Yuki Kurahashi, Tokyo, JP;
MITUTOYO CORPORATION, Kanagawa, JP;
Abstract
An image detection device includes: a liquid resonant lens system whose focal point is cyclically changed; an image detector configured to detect an image of an object through the lens system; a pulsed illuminator configured to provide pulsed illumination to the object in synchronization with the focal point; and an illumination controller configured to control the pulsed illuminator, in which the pulsed illuminator includes a main illumination section and a supplementary illumination section, and the illumination controller is configured to provide pulsed illumination to the object with the main illumination section and supplement illuminance on the object with the supplementary illumination section when the illuminance on the object by the main illumination section is equal to or less than a predetermined threshold.