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. 09, 2025
Filed:
Jul. 29, 2021
Mitutoyo Corporation, Kanagawa-ken, JP;
Norman Laman, Kenmore, WA (US);
MITUTOYO CORPORATION, Kanagawa-Ken, JP;
Abstract
A chromatic range sensor (CRS) system is configured to provide an in-focus image of a workpiece surface including a measurement spot usable as a guide light. The system includes an optical pen having a chromatically dispersive lens configuration providing axial chromatic dispersion, and a reflected light dividing configuration (e.g., a beamsplitter) arranged to receive and divide reflected light from the workpiece surface into a measurement portion and an imaging portion. The optical pen includes a narrowband spectral filter and a camera. The CRS system includes a processing portion configured to measure a distance from the optical pen to the workpiece surface, and to make an adjustment so that the distance corresponds to a focus distance at which the workpiece surface is in focus when imaged by the light that passes through the narrowband spectral filter.