Title:
RANGING MODULE AND RANGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/118514
Kind Code:
A1
Abstract:
A ranging module (30) and a ranging device (100). The ranging module (30) comprises a light source (32), a light path changing element (33), and a detector (35). The light path changing element (33) is located on an exit light path of the light source (32) and is used to combine the exit light path of the light source (32) and a receiving light path of the detector (35). The light path changing element (33) comprises a substrate (331) and a reflective film (333) formed on the substrate (331). A light-passing hole (3332) is provided on the reflective film (333). A region of the substrate (331) corresponding to the light-passing hole (3332) is configured to be a light-transmitting region (3312). A light pulse sequence emitted by the light source (32) penetrates the light-transmitting region (3312) and the light-passing hole (3332) and then exits. The light pulse sequence reflected back by a detected object is reflected by the reflective film (333) and is then received by the detector (35). The detector (35) is used to determine the distance and/or direction of the detected object relative to the ranging module (30) according to the received light pulse sequence.
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Inventors:
WANG LI (CN)
Application Number:
PCT/CN2018/120264
Publication Date:
June 18, 2020
Filing Date:
December 11, 2018
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
G01S17/06; G01S7/481
Foreign References:
| CN105116557A | 2015-12-02 | |||
| CN208125572U | 2018-11-20 | |||
| CN108132472A | 2018-06-08 | |||
| CN206960653U | 2018-02-02 | |||
| CN208013418U | 2018-10-26 | |||
| US20140078488A1 | 2014-03-20 |
Attorney, Agent or Firm:
BEIJING LISENG INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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