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Title:
INFRARED DISTANCE MEASUREMENT DEVICE AND TIR LENS
Document Type and Number:
WIPO Patent Application WO/2019/056432
Kind Code:
A1
Abstract:
An infrared distance measurement device, comprising an emission module, a reception module and a calculation module; the emission module comprises a light emission source (11) and a drive circuit, and the reception module comprises a plane array photosensitive chip; the light emission source (11) emits a detection light beam under the driving of the drive circuit, the detection light beam is incident to the plane array photosensitive chip after being reflected by an object within a detection range, and the calculation module outputs a detected light intensity or a detected distance; and an emission lens (12) is further provided on a light emission path and can be used for emitting the detection light beam after shaping. By shaping the detection light beam to control the divergence angle and the light beam shape, the detection light beam is matched with a set working region of the plane array photosensitive chip, improving the overall utilization of the detection light beam, such that the measurement of the plane array photosensitive chip is more accurate.

Inventors:
ZHANG, Qingshun (10A 10/F, Block ANo. 28 , Xinxi Road, Haidian District, Beijing 4, 100084, CN)
WU, Jiang (10A 10/F, Block ANo. 28 , Xinxi Road, Haidian District, Beijing 4, 100084, CN)
ZHENG, kai (10A 10/F, Block ANo. 28 , Xinxi Road, Haidian District, Beijing 4, 100084, CN)
SHU, Da (10A 10/F, Block ANo. 28 , Xinxi Road, Haidian District, Beijing 4, 100084, CN)
LI, Yuan (10A 10/F, Block ANo. 28 , Xinxi Road, Haidian District, Beijing 4, 100084, CN)
Application Number:
CN2017/106656
Publication Date:
March 28, 2019
Filing Date:
October 18, 2017
Export Citation:
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Assignee:
BENEWAKE (BEIJING) CO., LTD. (10A 10/F, Block ANo. 28 , Xinxi Road, Haidian District, Beijing 4, 100084, CN)
International Classes:
G01S17/08; F21V5/04; G01S7/481
Foreign References:
CN207148319U2018-03-27
CN207148313U2018-03-27
CN107515402A2017-12-26
CN106291574A2017-01-04
CN105627252A2016-06-01
CN205958751U2017-02-15
CN106896367A2017-06-27
US20050201096A12005-09-15
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (7th Floor, Scitech PlaceNo. 22, Jian Guo Men Wai Ave.,Chao Yang District, Beijing 4, 100004, CN)
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