ADJUSTABLE DEPTH MEASURING DEVICE AND MEASURING METHOD

WIPO Patent Application WO/2021/128587

A1

The present application discloses an adjustable depth measuring device, comprising a transmitting unit, a receiving unit, and a controlling and processing circuit; wherein the transmitting unit comprises a light source array and a zoom projection lens; the light source array comprises at least two sub light source arrays and is used for emitting a spot pattern light beam; the zoom projection lens receives the light beam and projects the light beam to a target area, and the field angle of the light beam projected by the light source is changed by changing the focal length of the zoom projection lens; the receiving unit comprises a TOF image sensor and a zoom imaging lens; the zoom imaging lens projects the reflected light beam into the TOF image sensor to form an electric signal after the reflected light beam is collected by the sensor, and the field angle of the reflected light beam collected by the TOF image sensor is changed by changing the focal length of the zoom imaging lens; the controlling and processing circuit calculates a depth image of the target area according to the electric signal. By adjusting the focal length, the present application has more flexible and changeable depths of field, so that depth measurement in a larger range is realized, and the distance measurement precision is improved.

WANG ZHAOMIN (CN)

PCT/CN2020/077865

July 01, 2021

March 04, 2020

Click for automatic bibliography generation  

SHENZHEN ORBBEC TECH CO LTD (CN)

G01S17/89; G01S17/36

CN110333501A	2019-10-15
CN106895793A	2017-06-27
CN209167538U	2019-07-26
CN109543660A	2019-03-29

SHENZHEN HUNS INTELLECTUAL PROPERTY (CN)

View/Download PDF      PDF Help

Previous Patent: PUSHING DEVICE OF BLISTER BOXING MACHINE

Next Patent: TRACING METHOD AND SYSTEM FOR ITEM CIRCULATION SYSTEM