Title:
LIGHT SUPPLEMENTING LENS, LIGHT SUPPLEMENTING LAMP MODULE, A LENS ASSEMBLY, AND AN ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/227778
Kind Code:
A1
Abstract:
A light supplementing lens (230), a light supplementing lamp module (200), a lens assembly, and an electronic device (1000). The structure of the light supplementing lens (230) is obtained by means of corresponding design according to the field of view of a camera lens (100), that is, a first size of the cross section of the light supplementing lens (230) perpendicular to an optical axis (b) is negatively correlated with a second size of the field of view of the camera lens (10), and a third size of a second surface (232) of the light supplementing lens (230) is negatively correlated with the second size of the field of view of the camera lens (10), and/or a first distance from the bottom wall (2341) of an accommodating cavity (234) of the light supplementing lens (230) used for accommodating a light source (220) to the second surface (232) is positively correlated with the second size of the field of view of the camera lens (10), thereby ensuring that the shape and size of a light supplementing area of the light supplementing lamp module (200) are basically the same as the shape and size of the field of view of the camera lens (10). Therefore, light use efficiency of the light supplementing lamp module (200) is improved, energy waste is reduced, stray light outside the field of view is further reduced, and light pollution is reduced.
Inventors:
CHEN CHUANSHU (CN)
SHI CHANGSHOU (CN)
SHI CHANGSHOU (CN)
Application Number:
PCT/CN2021/087949
Publication Date:
November 18, 2021
Filing Date:
April 17, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G02B13/00; G02B3/00; G03B15/03
Foreign References:
| CN209014752U | 2019-06-21 | |||
| CN209402620U | 2019-09-17 | |||
| CN201351867Y | 2009-11-25 | |||
| CN108388004A | 2018-08-10 | |||
| CN111023041A | 2020-04-17 | |||
| CN110753144A | 2020-02-04 | |||
| US20090190338A1 | 2009-07-30 |
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