Title:
IMPROVED TOF SENSOR DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/114376
Kind Code:
A1
Abstract:
A ToF sensor device according to one embodiment of the present invention comprises: a display including one opening part; a light-emitting unit provided to the inside of the display to emit laser light; a light-receiving unit for detecting a light-receiving signal; and a holographic optical element (HOE) waveguide provided between the display and the light-emitting unit and between the display and the light-receiving unit, wherein the HOE waveguide guides the laser light emitted from the light-emitting unit toward the light-receiving unit so that the laser light is emitted through the one opening part.
Inventors:
SHIM YOUNGBO (KR)
MOON YEONKUG (KR)
KIM MINJOON (KR)
MOON YEONKUG (KR)
KIM MINJOON (KR)
Application Number:
PCT/KR2020/019281
Publication Date:
June 02, 2022
Filing Date:
December 29, 2020
Export Citation:
Assignee:
KOREA ELECTRONICS TECHNOLOGY (KR)
International Classes:
G01S7/481; G01S17/02; H01S5/183
Foreign References:
| KR20180136386A | 2018-12-24 | |||
| KR20200038318A | 2020-04-10 | |||
| KR20190057153A | 2019-05-27 | |||
| KR20190084397A | 2019-07-17 | |||
| US20170220838A1 | 2017-08-03 |
Attorney, Agent or Firm:
YOON & LEE INTERNATIONAL PATENT & LAW FIRM (KR)
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