Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
COMPOSITE LENS AND MANUFACTURING METHOD THEREFOR, AND INFRARED DETECTOR
Document Type and Number:
WIPO Patent Application WO/2022/068031
Kind Code:
A1
Abstract:
A composite lens and a manufacturing method, and an infrared detector. The composite lens comprises a substrate (2); a lens (3) located on the first surface of the substrate (2); and a first metasurface structure array (1) that is provided on the second surface of the substrate (2) according to the surface type machining error of the lens (3), the first metasurface structure array (1) comprising a plurality of metasurface structure units. The first surface is opposite to the second surface. Because the lens (3) and the first metasurface structure array (1) are located on two different surfaces of the substrate (2), after the lens (3) is manufactured, the first metasurface structure array (1) can be set according to the surface type of the lens (3), so as to correct an aberration that is generated due to a surface type error when the lens (3) is machined; moreover, because the first metasurface structure array (1) can be set after the lens (3) is manufactured, the tolerance to a machining error is extremely high.

Inventors:
WANG PENG (CN)
DING XINYU (CN)
LI JUNYU (CN)
YU CHUANQING (CN)
Application Number:
PCT/CN2020/132653
Publication Date:
April 07, 2022
Filing Date:
November 30, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
YANTAI RAYTRON TECH CO LTD (CN)
International Classes:
G02B13/18; G02B3/02
Domestic Patent References:
WO2019164849A12019-08-29
Foreign References:
CN2757154Y2006-02-08
CN110488394A2019-11-22
US10473948B22019-11-12
CN112630868A2021-04-09
US20200064523A12020-02-27
CN110244452A2019-09-17
KR20200099832A2020-08-25
CN109196387A2019-01-11
CN111257975A2020-06-09
CN1567017A2005-01-19
CN108873121A2018-11-23
US7492530B22009-02-17
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
Download PDF: