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:
Jun. 11, 2024
Filed:
Jul. 09, 2020
Lg Innotek Co., Ltd., Seoul, KR;
Corning Incorporated, Corning, NY (US);
Sung Ki Jung, Seoul, KR;
Young Seop Moon, Seoul, KR;
LG INNOTEK CO., LTD., Seoul, KR;
CORNING INCORPORATED, Corning, NY (US);
Abstract
A lens curvature variation apparatus according to an embodiment includes: a liquid lens including a common electrode and a plurality of individual electrodes; a lens driver applying a voltage to the common electrode and the plurality of individual electrodes; a plurality of switching elements connected to each of the plurality of individual electrodes; a plurality of sensor units connected to each of the plurality of switching elements, and sensing an interface of the liquid lens that changes based on the voltage; a multiplexer (MUX) connected to the plurality of sensor units, and sequentially outputs an analog signal corresponding to the interface output from each of the plurality of sensor units; an AD converter that converts the analog signal sequentially output from the MUX into a digital signal to output; and a control unit controlling the lens driver based on the signal output from the AD converter.