Title:
METASURFACE AND FINGERPRINT RECOGNITION DEVICE HAVING SAME
Document Type and Number:
WIPO Patent Application WO/2023/050884
Kind Code:
A1
Abstract:
The embodiments of the present application belong to the technical field of metamaterials. Provided are a metasurface and a fingerprint recognition device having same. The metasurface comprises a substrate, first mediums and second mediums, wherein the first mediums are sub-wavelength structures, and the first mediums are distributed on a side of the substrate in an array; the second mediums fill the space between the first mediums; and an included angle between a normal of an interface between the first medium and the second medium and a normal of a surface of the substrate is not equal to 0°. By means of the metasurface provided in the embodiments of the present application, the angular selection and phase regulation of incident light are realised, and the volume of a fingerprint recognition device is reduced.
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Inventors:
HAO CHENGLONG (CN)
TAN FENGZE (CN)
ZHU JIAN (CN)
TAN FENGZE (CN)
ZHU JIAN (CN)
Application Number:
PCT/CN2022/098342
Publication Date:
April 06, 2023
Filing Date:
June 13, 2022
Export Citation:
Assignee:
SHENZHEN METALENX TECH CO LTD (CN)
International Classes:
G02B5/00
Domestic Patent References:
| WO2021057633A1 | 2021-04-01 |
Foreign References:
| CN113807312A | 2021-12-17 | |||
| CN213092332U | 2021-04-30 | |||
| CN110501772A | 2019-11-26 | |||
| CN112099113A | 2020-12-18 | |||
| CN110361361A | 2019-10-22 | |||
| CN112135028A | 2020-12-25 |
Attorney, Agent or Firm:
FAIRSKY LAW OFFICE (CN)
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