公开(公告)号：US20180106668A1

公开(公告)日：2018-04-19

申请号：US15705285

申请日：2017-09-15

Applicant: OMRON Corporation

Inventor： Motoharu OKUNO ,  Guopei LI ,  Xue YANG ,  Ji SHI ,  Ming ZHU

IPC: G01J1/04 ,  G01J1/44 ,  G01J1/42

CPC classification number: G01J1/0411 ,  G01J1/0266 ,  G01J1/0437 ,  G01J1/08 ,  G01J1/4228 ,  G01J1/44 ,  G01V8/12

Abstract: Embodiments of the invention relate to a bijection photoelectric sensor and a target detection system. The bijection photoelectric sensor includes a light projector and a light receiver. The light projector includes: a light emitting device, emitting light; a first lens, converting the light emitted by the light emitting device into parallel light; and a first baffle, located between the light emitting device and the first lens. A first through hole is provided on the first baffle. A center of the first through hole is overlapped with a focal point of the first lens. In addition, a visual field formed by the light emitted by the light emitting device is controlled through the first through hole. According to the embodiments of the invention, a light spot with a sufficient amount of light and in a desired shape is able to be obtained.