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:
Oct. 29, 2024
Filed:
Oct. 13, 2021
Mitutoyo Corporation, Kanagawa-ken, JP;
Pavel Ivanovich Nagornykh, Kirkland, WA (US);
Mitutoyo Corporation, Kanagawa-ken, JP;
Abstract
A method provides distance calibration data for a chromatic range sensor system with a chromatic range sensor optical pen configured to focus different wavelengths at different distances along a distance measurement axis. The chromatic range sensor optical pen is arranged in a relationship relative to a spherical calibration object that has a nominally spherical calibration surface. Relative movement of the chromatic range sensor optical pen in relation to the nominally spherical calibration surface is controlled so as to perform a spiral scan of a portion of the nominally spherical calibration surface. Distance indicating data is determined as corresponding to the distances between the chromatic range sensor optical pen and surface points on the nominally spherical calibration surface as the spiral scan is performed. Distance calibration data for the chromatic range sensor system is determined based on the distance indicating data.