Title:
MAGNETIC-ATTRACTION FILTER ASSEMBLY AND MAGNETIC-ATTRACTION FILTER CAP ASSEMBLY, AND LENS ASSEMBLY HAVING SAME
Document Type and Number:
WIPO Patent Application WO/2022/222520
Kind Code:
A1
Abstract:
A magnetic-attraction filter assembly (100) and a magnetic-attraction filter cap assembly (200), and a lens assembly (700) having same. The magnetic-attraction filter assembly (100) comprises: a filter (132, 610); a main body (110), wherein an inner side of the main body (110) is provided with a first mounting table (112) and a first connecting portion (113), the first connecting portion (113) is provided with a recess, which has an open upper side, a second magnetic ring (133) is fixedly mounted in the recess of the first connecting portion (113), the second magnetic ring (133) is clamped to an inner wall of the first connecting portion (113), and the first connecting portion (113) is integrally formed with the first mounting table (112); and an aluminum ring (220), wherein the aluminum ring (220) is provided with a first mounting slot (122), which is open towards a lower side, a first magnetic ring (131) is fixedly mounted in the first mounting slot (122), the first magnetic ring (131) and the second magnetic ring (133) have opposite magnetism, the position of the recess of the first connecting portion (113) matches the position of the first mounting slot (122), and the aluminum ring (220) and the first connecting portion (113) cooperate with each other to clamp the filter (132, 610). The aluminum ring (220) and the first connecting portion (113) are used for clamping the filter (132, 610) in a longitudinal direction, thereby improving the stability of the filter (132, 610).
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Inventors:
HUANG SHIYONG (CN)
Application Number:
PCT/CN2021/139484
Publication Date:
October 27, 2022
Filing Date:
December 20, 2021
Export Citation:
Assignee:
JIANGMEN KASE OPTICS CO LTD (CN)
International Classes:
G03B17/14; G02B7/00; G03B17/12
Foreign References:
| CN214895963U | 2021-11-26 | |||
| CN215416231U | 2022-01-04 | |||
| CN210376963U | 2020-04-21 | |||
| CN210465958U | 2020-05-05 | |||
| CN208607474U | 2019-03-15 | |||
| US20200019043A1 | 2020-01-16 | |||
| CN202720377U | 2013-02-06 |
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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