公开(公告)号：US11592532B2

公开(公告)日：2023-02-28

申请号：US16460203

申请日：2019-07-02

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Hyunyong Choi ,  Hyun chang Cho

IPC: G01S7/481 ,  G01S7/484 ,  G01S17/89 ,  G02B26/10

Abstract: In one embodiment, an integrated light transmission/reception optical system module includes a light receiving lens, a light source, and a light transmitting mirror. The light receiving lens receives light, concentrates the received light on a light detector disposed at a rear position, and has an optical path groove formed to be directed from a circumference to a central portion and formed to expose a front side. The light source outputs a pulse laser along the optical path groove from the circumference of the light receiving lens toward the central portion of the light receiving lens. The light transmitting mirror is disposed within the optical path groove, is located on a path of the pulse laser, and reflects in a front direction the pulse laser outputted from the light source. Other embodiments are also possible.

公开(公告)号：US10422863B2

公开(公告)日：2019-09-24

申请号：US15314880

申请日：2016-03-10

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Hyunyong Choi ,  Chouljun Choi ,  Seunghun Oh ,  Hyunchang Cho ,  Seungjoo Lee

IPC: G01C3/08 ,  G01S7/481 ,  G01S7/483 ,  G01S17/10 ,  G01S17/42 ,  G01S17/89 ,  G01S17/93

Abstract: One aspect is a scanning light detection and ranging (LiDAR) having an optical structure which shares a transmitting and receiving lens. In one embodiment, the LiDAR includes a hole mirror disposed to have a first angle with respect to a horizontal surface and including a hole and a reflecting surface and a beam source configured to output a pulsed laser beam from one side of the hole mirror toward the hole. The LiDAR also includes a transmitting and receiving lens configured to generate a collimated beam to move the pulsed laser beam which passed through the hole toward a measurement target, receive a beam reflected from the measurement target, and transmit the reflected beam to the hole mirror. The LiDAR further includes a beam detector disposed to face the reflecting surface of the hole mirror and configured to receive the beam reflected from the hole mirror and convert the reflected beam into an electronic signal.

公开(公告)号：US20180275251A1

公开(公告)日：2018-09-27

申请号：US15314880

申请日：2016-03-10

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Hyunyong Choi ,  Chouljun Choi ,  Seunghun Oh ,  Hyunchang Cho ,  Seungjoo Lee

IPC: G01S7/481 ,  G01S7/483

Abstract: One aspect is a scanning light detection and ranging (LiDAR) having an optical structure which shares a transmitting and receiving lens. In one embodiment, the LiDAR includes a hole mirror disposed to have a first angle with respect to a horizontal surface and including a hole and a reflecting surface and a beam source configured to output a pulsed laser beam from one side of the hole mirror toward the hole. The LiDAR also includes a transmitting and receiving lens configured to generate a collimated beam to move the pulsed laser beam which passed through the hole toward a measurement target, receive a beam reflected from the measurement target, and transmit the reflected beam to the hole mirror. The LiDAR further includes a beam detector disposed to face the reflecting surface of the hole mirror and configured to receive the beam reflected from the hole mirror and convert the reflected beam into an electronic signal.