Title:
CAMERA OPTICAL LENS
Document Type and Number:
WIPO Patent Application WO/2022/041385
Kind Code:
A1
Abstract:
A camera optical lens (10), containing a total of five lenses, which from the object side to the image side are sequentially: a first lens (L1), a second lens (L2), a third lens (L3), a fourth lens (L4), and a fifth lens (L5). At least one lens among the first lens (L1) to the fifth lens (L5) has a freeform surface, the overall focal length of the camera optical lens (10) is f, the focal length of the third lens (L3) is f3, the central curvature radius of the object side surface of the second lens (L2) is R3, the central curvature radius of the image side surface of the second lens (L2) is R4, and the following relationships are satisfied: 2.00 ≤ f3/f ≤ 5.50; 2.00 ≤ R4/R3 ≤ 23.00. The camera optical lens (10) features good optical performance while also meeting ultra-thin, wide-angle, and large-aperture design requirements.
Inventors:
CHEN JIA (CN)
SUN WEN (CN)
SUN WEN (CN)
Application Number:
PCT/CN2020/118572
Publication Date:
March 03, 2022
Filing Date:
September 28, 2020
Export Citation:
Assignee:
AAC OPTICS SHENZHEN CO LTD (CN)
International Classes:
G02B13/00
Foreign References:
| CN204422847U | 2015-06-24 | |||
| CN102928957A | 2013-02-13 | |||
| CN110412750A | 2019-11-05 | |||
| CN105938234A | 2016-09-14 | |||
| CN105842828A | 2016-08-10 | |||
| US20200124827A1 | 2020-04-23 |
Other References:
"Modern Optical Design Methods (2nd Edition)", 30 April 2015, BEIJING INSTITUTE OF TECHNOLOGY PRESS, CN, ISBN: 978-7-5682-0217-6, article LI, LIN: "Passage; Modern Optical Design Methods", pages: 341 - 343, XP009534815
"New progress in precision and ultra-precision machining technology", 31 August 2016, AVIATION INDUSTRY PRESS, CN, ISBN: 978-7-5165-1056-8, article YANG, HUI: "Passage; New Development of Precision and Ultra-Precision Machining Technology", pages: 220 - 226, XP009534816
"New progress in precision and ultra-precision machining technology", 31 August 2016, AVIATION INDUSTRY PRESS, CN, ISBN: 978-7-5165-1056-8, article YANG, HUI: "Passage; New Development of Precision and Ultra-Precision Machining Technology", pages: 220 - 226, XP009534816
Attorney, Agent or Firm:
SHENZHEN ZICHEN INTELLECTUAL PROPERTY AGENCY LIMITED (CN)
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