公开(公告)号：US20190265332A1

公开(公告)日：2019-08-29

申请号：US16344926

申请日：2016-11-29

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Hyunyong CHOI ,  Hyunchang CHO

IPC: G01S7/484 ,  G01S17/02

Abstract: The present invention relates to a light transmitting and receiving device and method, which output the power of a partial optical pulse such that the power thereof is different from that of another optical pulse, so as to receive reflected light, and identify whether an object, which is undetectable using the reflected light of an optical pulse outputted with relatively low power, is detected using the reflected light of an optical pulse outputted with relatively high power, so as to adjust the power of an optical pulse to be output thereafter. Therefore, detection efficiency can be maximized using low power while eye safety requirements are satisfied.

公开(公告)号：US20190324125A1

公开(公告)日：2019-10-24

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

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.