Title:
OPTICAL SYSTEM, CAMERA MODULE, AND AUTOMOBILE
Document Type and Number:
WIPO Patent Application WO/2021/022500
Kind Code:
A1
Abstract:
An optical system (100), sequentially comprising from an object side to an image side: a first lens (L1) having a negative refractive power, an object-side surface (S1) of the first lens (L1) being a convex surface, and an image-side surface (S2) thereof being a concave surface; a second lens (L2) having a negative refractive power, an image-side surface (S4) of the second lens (L2) being a concave surface; a third lens (L3) having a positive refractive power; a diaphragm (STO); a fourth lens (L4) having a positive refractive power; and a fifth lens (L5) having a negative refractive power. The optical system (100) satisfies the following relationship: (SD S2)/(RDY S2)<0.93, wherein SD S2 is the Y-direction half aperture of the image-side surface (S2) of the first lens (L1), and RDY S2 is the Y radius of the image-side surface (S2) of the first lens (L1).
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Inventors:
ZOU HAIRONG (CN)
LE YUMING (CN)
YOO BYOUNGTAEK (CN)
LAN BINLI (CN)
LE YUMING (CN)
YOO BYOUNGTAEK (CN)
LAN BINLI (CN)
Application Number:
PCT/CN2019/099542
Publication Date:
February 11, 2021
Filing Date:
August 07, 2019
Export Citation:
Assignee:
NANCHANG OUFEI PREC OPTICAL PRODUCT CO LTD (CN)
International Classes:
G02B13/06; G02B9/60; G02B13/18
Foreign References:
| CN100480767C | 2009-04-22 | |||
| CN104749750A | 2015-07-01 | |||
| CN203838397U | 2014-09-17 | |||
| CN106199921A | 2016-12-07 | |||
| CN203350520U | 2013-12-18 | |||
| EP2299306A1 | 2011-03-23 | |||
| US5933286A | 1999-08-03 | |||
| JP2013003546A | 2013-01-07 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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