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:
May. 31, 2022
Filed:
Oct. 16, 2018
Applicant:
Lg Electronics Inc., Seoul, KR;
Inventors:
Assignee:
LG ELECTRONICS INC., Seoul, KR;
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/232 (2006.01); G02F 1/29 (2006.01); G02B 3/14 (2006.01); G02B 7/04 (2021.01); G02B 26/00 (2006.01); G06F 3/041 (2006.01); H04N 5/225 (2006.01); G02B 7/09 (2021.01); H04M 1/02 (2006.01);
U.S. Cl.
CPC ...
H04N 5/232122 (2018.08); G02B 3/14 (2013.01); G02B 7/04 (2013.01); G02B 7/09 (2013.01); G02B 26/004 (2013.01); G02B 26/005 (2013.01); G02F 1/29 (2013.01); G06F 3/041 (2013.01); H04M 1/0264 (2013.01); H04N 5/2253 (2013.01); H04N 5/2254 (2013.01); H04N 5/23264 (2013.01); H04N 5/232123 (2018.08); H04N 5/232935 (2018.08); G02F 1/294 (2021.01);
Abstract
Provided is an optical device for reducing the time for auto focusing (AF) performed by a contrast detection system, the optical device comprises a liquid lens having a curvature that varies on the basis of an applied electrical signal and the liquid lens may be auto-focused at one time from the current curvature (i.e., the first curvature state, p) to a target curvature corresponding to a distance to the subject (i.e., a second curvature state) based on the FV slope ratio.