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. 08, 2020
Filed:
Jun. 24, 2019
Samsung Electro-mechanics Co., Ltd., Suwon-si, KR;
Samsung Electro-Mechanics Co., Ltd., Suwon-si, KR;
Abstract
A camera module includes a lens barrel; an actuator driving the lens barrel in a direction perpendicular to an optical axis; and an aperture module adjusting an amount of light incident in the lens barrel. The aperture module includes an aperture coupled to the lens barrel, a magnet provided on one side of the aperture, a coil disposed opposite to the magnet, a position detector detecting a position of the magnet to generate a feedback signal, and a driver comparing an input signal indicating a target position of the magnet with the feedback signal to calculate an error value and generating a driving signal according to the calculated error value. The driver compares a current position of the lens barrel with a neutral position of the lens barrel to generate a compensation signal and compensates for one of the input signal and the feedback signal based on the compensation signal.