Title:
PHOTOSENSOR AND TERMINAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/037723
Kind Code:
A1
Abstract:
A photosensor (10) and a terminal device (100). The photosensor (10) comprises at least one photosensor sub-module. Each photosensor sub-module comprises a first photodetector (11), a second photodetector (12), a first linear polarizing plate (13), a second linear polarizing plate (14), a first phase delay film (151), and a second phase delay film (152). The first photodetector is for acquiring a light intensity of a first mixed light of a mixed light that has passed through the first phase delay film and the first linear polarizing plate, and the second photodetector is for acquiring a light intensity of a second mixed light of the mixed light that has passed through the second phase delay film and the second linear polarizing plate, wherein the mixed light comprises a first light beam (A) and a second light beam (B). After the mixed light passes through the second linear polarizing plate, a first light beam is filtered such that a difference between the light intensity of the first mixed light and the light intensity of the second mixed light is a light intensity of a light beam (A1) of the first light beam that has passed through the first phase delay film and the first linear polarizing plate.
Inventors:
WANG HUI (CN)
WEI WENXIONG (CN)
QU GAOPENG (CN)
GUO WEI (CN)
WEI WENXIONG (CN)
QU GAOPENG (CN)
GUO WEI (CN)
Application Number:
PCT/CN2018/101582
Publication Date:
February 28, 2019
Filing Date:
August 21, 2018
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G01J1/10; G09G5/10; H04M1/725
Foreign References:
| CN204155595U | 2015-02-11 | |||
| CN101951445A | 2011-01-19 | |||
| US20080006762A1 | 2008-01-10 | |||
| CN106462339A | 2017-02-22 | |||
| CN201711083552A | 2017-11-07 | |||
| CN201710732235A | 2017-08-22 |
Other References:
See also references of EP 3671146A4
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