Title:
OPTICAL SYSTEM AND CAMERA MODULE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2022/050723
Kind Code:
A1
Abstract:
An optical system according to an embodiment comprises first to sixth lenses sequentially arranged from an object side to an image side, wherein: the first lens has positive refractive power and a convex object side surface; the third lens has an inflection point on at least one among the object side surface or the image side surface; and the sixth lens has negative refractive power, has an inflection point on at least one among the object side surface or the image side surface, and can satisfy the following equation 1. Equation 1: 1 < TTL/BFL < 3
The TTL (total track length) is the optical distance from the vertex of the object side surface of the first lens to the top surface of an image sensor, and BFL (back focal length) is the optical distance from the vertex of the image side surface of the sixth lens to the top surface of the image sensor.
Inventors:
KWON DUK KEUN (KR)
Application Number:
PCT/KR2021/011860
Publication Date:
March 10, 2022
Filing Date:
September 02, 2021
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
G02B13/00; G02B3/00; G02B9/62; G03B17/12; H04N5/225
Foreign References:
| KR20160046255A | 2016-04-28 | |||
| KR20190090325A | 2019-08-01 | |||
| KR20170136486A | 2017-12-11 | |||
| KR20190095226A | 2019-08-14 | |||
| US20190056569A1 | 2019-02-21 |
Attorney, Agent or Firm:
HAW, Yong Noke (KR)
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