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. 04, 2022
Filed:
Jun. 30, 2020
Jahwa Electronics Co., Ltd., Chungcheongbuk-do, KR;
Hee Seung Kim, Seoul, KR;
In Soo Kim, Gyeonggi-do, KR;
JAHWA electronics Co., Ltd., Chungcheongbuk-Do, KR;
Abstract
Disclosed is an auto-focusing apparatus having an asymmetric supporting structure, which includes a first frame having a magnet; a second frame having an AF coil for moving the first frame in an optical axis direction; a first ball group located between the first frame and the second frame and having a number of balls arranged along the optical axis direction; and a second ball group located between the first frame and the second frame at a position different from the first ball group and having a number of balls arranged along the optical axis direction. The first ball group include two first support balls having a greater size than the other balls in the first ball group, and the second ball group includes two second support balls having a greater size than the other balls in the second ball group.