Title:
OPTICAL IMAGING SYSTEM, IMAGE ACQUISITION APPARATUS, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/046698
Kind Code:
A1
Abstract:
Disclosed is an optical imaging system (100) sequentially comprising, from an object side to an image side, a first lens (L1) with positive optical power, a second lens (L2) with negative optical power, a third lens (L3) with positive optical power, and an infrared filter (L4), wherein the infrared filter (L4) is positioned between the first lens (L1) and the second lens (L2) or between the second lens (L2) and the third lens (L3). The miniaturization of the optical imaging system (100) is realized; in addition, the difference in assembled segments of the optical imaging system (100) is reduced, and the assembling stability of the optical imaging system (100) is improved, such that the yield of the optical imaging system (100) is improved, and the production cost is reduced. Further provided are an image acquisition apparatus (200) and an electronic device (300).
Inventors:
SONG QI (CN)
LI MING (CN)
XIE HAN (CN)
LIU BINBIN (CN)
LI MING (CN)
XIE HAN (CN)
LIU BINBIN (CN)
Application Number:
PCT/CN2019/104991
Publication Date:
March 18, 2021
Filing Date:
September 09, 2019
Export Citation:
Assignee:
NANCHANG O FILM PREC OPTICAL PRODUCT CO LTD (CN)
International Classes:
G02B9/14; G02B13/00
Foreign References:
| CN106896469A | 2017-06-27 | |||
| CN102313971A | 2012-01-11 | |||
| US20060056070A1 | 2006-03-16 | |||
| CN204650055U | 2015-09-16 | |||
| KR20090078053A | 2009-07-17 | |||
| CN105842815A | 2016-08-10 | |||
| JPH09138342A | 1997-05-27 | |||
| CN210401818U | 2020-04-24 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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