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:
Mar. 03, 2026
Filed:
May. 25, 2022
Acuvi Ab, Uppsala, SE;
Håkan Ohlgren, Vendelsö, SE;
Acuvi AB, Uppsala, SE;
Abstract
A method for driving an optical lens system having a first and a second group of optical lenses movable along a linear path parallel to an optical axis by a first and second motor, respectively, and a drive unit, comprises reading (S, S) of a present position of the groups and communicating (S) it to the drive unit. In the drive unit, a command representing a requested optical zoom degree and/or a requested focusing distance is received (S). Requested positions of the groups, corresponding to the received command, are deduced (S) by utilizing predetermined lens positioning data available in the drive unit. The predetermined lens positioning data represents positions of the groups causing different combinations of optical zoom degree and focusing distance. The motors are driven (S, S) to move the groups to the respective requested positions. The driving comprises applying (S, S) of voltage signals over electromechanical materials.