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.

Date of Patent:
Oct. 15, 2024

Filed:

Mar. 11, 2022
Applicant:

Hand Held Products, Inc., Charlotte, NC (US);

Inventors:

Chen Feng, Mt Laurel, NJ (US);

Tao Xian, Columbus, NJ (US);

Eric A. Youngblood, Matthews, NC (US);

Assignee:

Hand Held Products, Inc., Charlotte, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 15/14 (2006.01); G02B 7/00 (2021.01); G02B 15/15 (2006.01); G03B 17/12 (2021.01);
U.S. Cl.
CPC ...
G02B 15/15 (2013.01); G02B 7/004 (2013.01); G03B 17/12 (2013.01);
Abstract

An example variable focusing lens apparatus, as well as example methods for assembling and operating the example variable focusing lens apparatus, is provided. The example variable focusing lens apparatus includes a rear pair of coil elements powered by a rear coil current, a front pair of coil elements positioned in front of the rear pair of coil elements and powered by a front coil current, and a barrel lens assembly comprising a top magnetic element secured on a top portion of the barrel lens assembly and a bottom magnetic element secured on a bottom portion of the barrel lens assembly. In some examples, the barrel lens assembly is moveable to a plurality of barrel lens assembly positions corresponding to a plurality of current differential ratios associated with the rear coil current and the front coil current.


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