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:
Dec. 16, 2025

Filed:

Dec. 30, 2019
Applicant:

Lg Innotek Co., Ltd., Seoul, KR;

Inventor:

Ji Sung Kim, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 23/55 (2023.01); G02B 9/34 (2006.01); G02B 13/00 (2006.01); G03B 17/12 (2021.01);
U.S. Cl.
CPC ...
H04N 23/55 (2023.01); G02B 9/34 (2013.01); G02B 13/004 (2013.01); G03B 17/12 (2013.01);
Abstract

An optical system according to one embodiment of the present invention includes a first lens, a second lens, a third lens, and a fourth lens, which are sequentially arranged from an object side to an image side, and has an F value of 1.7 or less and a ratio (total top length (TTL)/F value) of a TTL to the F value of 2.1 to 3.


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