Title:
LONG-FOCUS LENS GROUP, PHOTOGRAPHING MODULE, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/241614
Kind Code:
A1
Abstract:
A long-focus lens group (10), a photographing module (20), and an electronic device (30). The long-focus lens group (10) at least sequentially comprises a long-focus optical module (110) and a reflection element (120) along a transmitting path (101) of an effective light beam, wherein the reflection element (120) has a plurality of reflection faces (121, 122, 123, 124, 125), and one reflection face (121) is located on an optical axis (111) of the long-focus optical module (110), and is used for receiving an effective light beam emergent from the long-focus optical module (110) and reflecting the effective light beam to the outside of the optical axis of the long-focus optical module (110); and all other reflection faces (122, 123, 124, 125) are located outside the optical axis (111) of the long-focus optical module (110), and are used for receiving the effective light beam after first-time reflection and for carrying out reflection multiple times. The plurality of reflection faces (121, 122, 123, 124, 125) can extend the transmission distance of the effective light beam in the reflection element (120), such that while a long-focus function of the long-focus optical module (110) is achieved, a transmission space for achieving the effective light beam having the same long-focus focal length is compressed, and then the overall size of the long-focus lens group (10) is reduced, thereby facilitating the realizing of miniaturization of the photographing module (20), and finally realizing the lightweight of the electronic device (30).
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Inventors:
JIANG CHUANDONG (CN)
Application Number:
PCT/CN2021/094114
Publication Date:
November 24, 2022
Filing Date:
May 17, 2021
Export Citation:
Assignee:
OFILM GROUP CO LTD (CN)
NANCHANG OFILM OPTICAL ELECTRONIC TECH CO LTD (CN)
NANCHANG OFILM OPTICAL ELECTRONIC TECH CO LTD (CN)
International Classes:
G02B7/18; G02B17/04; G02B17/06; G02B17/08; G02B23/02; G03B17/17
Foreign References:
| CN211826696U | 2020-10-30 | |||
| CN110058419A | 2019-07-26 | |||
| CN111650719A | 2020-09-11 | |||
| US20010009477A1 | 2001-07-26 | |||
| CN112637467A | 2021-04-09 |
Attorney, Agent or Firm:
BEIJING HENGBO INTELLECTUAL PROPERTY AGENT LTD. (CN)
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