公开(公告)号：US20210159664A1

公开(公告)日：2021-05-27

申请号：US17165744

申请日：2021-02-02

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Xiang LIU ,  Guoguang ZHENG ,  Xiaoping HONG ,  Mingyu WANG ,  Shuai DONG

IPC: H01S5/02255 ,  H01S5/02253

Abstract: The present disclosure provides a laser diode package module. The laser diode package module includes a substrate including a first surface; a cover disposed on the first surface of the substrate; an accommodation space formed between the substrate and the cover; a laser diode die disposed in the accommodation space; and a reflective surface disposed in the accommodation space for outputting light of the laser diode die reflected by the reflective surface and transmitted through a light-transmitting area. The light-transmitting area is at least partially disposed on a surface of the cover opposite the substrate.

公开(公告)号：US20220120899A1

公开(公告)日：2022-04-21

申请号：US17520209

申请日：2021-11-05

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Yue YAN ,  Xiang LIU ,  Shuai DONG ,  Huai HUANG

IPC: G01S17/10 ,  G01S7/497 ,  G02B6/42 ,  G01S7/4861

Abstract: A ranging device includes a light emission device configured to emit a light pulse sequence, a light guide device, a first light reception device configured to monitor an output optical power of the light emission device, and a second light reception device configured to receive a light pulse signal reflected by an object and determine a distance between the object and the ranging device based on the light pulse signal. The light guide device includes a light incident surface, a reflection surface, and a light emission surface. The reflection surface includes a first reflection surface and a second reflection surface. At least one of the first reflection surface or the second reflection surface has a curved surface shape. The light guide device is configured to receive part of radiation power emitted by the light emission device and conduct the part of the radiation power to the first light reception device.

公开(公告)号：US20210341588A1

公开(公告)日：2021-11-04

申请号：US17369475

申请日：2021-07-07

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Shuai DONG ,  Xiaoping Hong

IPC: G01S7/481 ,  G02B27/30 ,  G01S17/10 ,  G02B27/09 ,  G02B3/04 ,  G02B26/10

Abstract: A ranging device includes a transmitter, a collimation element, a converging element, a detector, and at least one of a first pre-shaping element or a second pre-shaping element. The transmitter is configured to emit a light pulse sequence. The collimation element is configured to collimate the light pulse sequence. The converging element is configured to converge at least part of reflected light reflected by an object. The detector is configured to receive and convert the at least part of the reflected light to an electrical signal, and determine at least one of a distance or an orientation of the object with respect to the ranging device according to the electrical signal. An effective aperture of the collimation element is greater than an effective aperture of the first pre-shaping element, and an effective aperture of the converging element is greater than an effective aperture of the second pre-shaping element.

公开(公告)号：US20210333370A1

公开(公告)日：2021-10-28

申请号：US17372023

申请日：2021-07-09

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Yue YAN ,  Shuai DONG ,  Chenghui LONG

IPC: G01S7/481 ,  G01S7/484 ,  G01S17/26

Abstract: The present disclosure provides a light emission method. The method includes emitting a light pulse sequence; changing a propagation direction of the light pulse sequence to scan a surrounding environment; and controlling an emission frequency and/or emission power of the light pulse sequence based on a scanning speed of the light pulse sequence.

公开(公告)号：US20210293929A1

公开(公告)日：2021-09-23

申请号：US17339938

申请日：2021-06-04

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Shuai DONG ,  Chenghui LONG ,  Xiongze MEI ,  Xiaoping HONG ,  Fu ZHANG

IPC: G01S7/484 ,  G01S17/10

Abstract: A ranging system includes a plurality of ranging apparatuses. Each of the plurality of ranging apparatuses is configured to emit a laser pulse sequence, receive a laser pulse sequence reflected by an object, and detect the object according to the laser pulse sequence emitted and the laser pulse sequence received. The two or more ranging apparatuses of the plurality of ranging apparatuses are configured to emit laser pulse sequence with different time sequences and/or to emit different laser pulse sequences.