Title:
OPTICAL SYSTEM AND CAMERA MODULE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2023/224455
Kind Code:
A1
Abstract:
An optical system disclosed in an embodiment of the present invention comprises first to eighth lenses arranged along an optical axis (OA) in the direction from an object side to a sensor side, wherein: the first lens has a positive (+) refractive power on the OA and has a convex object-side surface; the refractive index (n1) of the first lens and the refractive index (n2) of the second lens satisfy the mathematical formula 0 < n1/n2 < 1; among the first to eighth lenses, the number of meniscus-shaped lenses that are convex toward the object side on the OA is five or more; each of the object-side surface and the sensor-side surface of the sixth lens has a critical point; each of the object-side surface and the sensor-side surface of the seventh lens has a critical point; and the critical point on the sensor-side surface of the seventh lens may be positioned further outward from the OA than either of the critical point on the object-side surface or the sensor-side surface of the sixth lens.
Inventors:
KWON DUK KEUN (KR)
Application Number:
PCT/KR2023/006951
Publication Date:
November 23, 2023
Filing Date:
May 22, 2023
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
G02B13/00; G02B9/64; G02B13/18; G03B17/12; H04N23/55
Foreign References:
| JP2022056298A | 2022-04-08 | |||
| JP2021096445A | 2021-06-24 | |||
| KR20180076742A | 2018-07-06 | |||
| KR20210062432A | 2021-05-31 | |||
| CN110471168B | 2022-01-07 |
Attorney, Agent or Firm:
HAW, Yong Noke (KR)
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