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. 08, 2025
Filed:
Jul. 29, 2022
Asahi Kasei Microdevices Corporation, Tokyo, JP;
Keita Okada, Tokyo, JP;
Takahito Hara, Tokyo, JP;
Asahi Kasei Microdevices Corporation, Tokyo, JP;
Abstract
Provided is a calibration apparatus comprising: a driving control unit to drive an object provided with a lens in a movable range for moving the object in an optical axis-direction by sequentially controlling a plurality of drive units configured to drive the object within each of a plurality of sections into which the movable range is divided, in calibration of a drive apparatus including: the plurality of drive units; and a magnetic field detection unit configured to detect a magnetic field corresponding to a position of the object; a position acquisition unit to acquire position data of the object; a magnetic field acquisition unit to acquire magnetic field data corresponding to a position of the object; and a generating unit to generate, based on the position data and the magnetic field data, end point information to determine a driving range in each of the plurality of sections.