Title:
IMAGING OPTICAL SYSTEM, IMAGING DEVICE AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/051971
Kind Code:
A1
Abstract:
The present invention discloses an imaging optical system, an imaging device and an electronic device, which can reduce the total track length while maintaining high resolution. The imaging optical system includes at least one metalens(104) having nanostructure and three or more lenses not having the nanostructure. The imaging optical system includes at least one metalens having nanostructure and at least one lens not having the nanostructure, in which the imaging optical system satisfies 0.5 < TTL/f < 10, and wavelength of incident light satisfies the following condition: 300 nm < wavelength < 700 nm.
Inventors:
LIU YINGQING (JP)
IZUMI RYOTARO (JP)
ANZAWA TAKUYA (JP)
IZUMI RYOTARO (JP)
ANZAWA TAKUYA (JP)
Application Number:
PCT/CN2020/114429
Publication Date:
March 17, 2022
Filing Date:
September 10, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G02B3/00
Domestic Patent References:
| WO2016140720A2 | 2016-09-09 |
Foreign References:
| CN111257975A | 2020-06-09 | |||
| CN103390801A | 2013-11-13 | |||
| CN101158727A | 2008-04-09 | |||
| CN106803872A | 2017-06-06 | |||
| CN110099201A | 2019-08-06 |
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