Title:
LENS AND LENS ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2021/026941
Kind Code:
A1
Abstract:
A lens (1) and a lens assembly (100). The lens assembly (100) comprises a lens barrel (2) having an accommodating space (6) and provided with a light through hole (5), and a lens (1) arranged in the accommodating space (6); the lens (1) comprises an optical portion (11) for imaging and a peripheral portion (12) surrounding the optical portion (11), the peripheral portion (12) is provided with through holes (30) penetrating through the peripheral portion (12) along an optical axis direction of the lens (1); the through holes (30) are distributed on a plurality of circumferences of different diameters, centers of the plurality of circumferences are located on the optical axis, and the farther the circumference is away from the optical axis, the more the through holes (30) are. When light irradiates an area of the lens (1) where the through holes (30) are arranged, the parasitic light is absorbed, effectively reducing the reflection of the peripheral portion (12) of the lens (1) on the parasitic light, and improving the imaging quality; moreover, the through holes (30) neither affect the assembly precision of the lens (1), nor reduce the appearance yield, nor increase the cost of the lens (1).
Inventors:
XU LINGYUN (CN)
Application Number:
PCT/CN2019/101019
Publication Date:
February 18, 2021
Filing Date:
August 16, 2019
Export Citation:
Assignee:
AAC OPTICS CHANGZHOU CO LTD (CN)
International Classes:
G02B3/00; G03B11/00
Foreign References:
| CN209198735U | 2019-08-02 | |||
| CN208636512U | 2019-03-22 | |||
| CN207528948U | 2018-06-22 | |||
| CN101387728A | 2009-03-18 | |||
| CN107357019A | 2017-11-17 | |||
| JP2007163637A | 2007-06-28 |
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
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