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公开(公告)号:US20230305184A1
公开(公告)日:2023-09-28
申请号:US18191200
申请日:2023-03-28
IPC分类号: G01V8/22
CPC分类号: G01V8/22
摘要: An emitter and a receiver in a light barrier system are aligned by placing one or more retroreflective elements in a vicinity of the receiver such that a beam of visible light emitted by an optical alignment element impinges on a retroreflective element when the light beam emitted by the emitter impinges on the receiver. The optical alignment element is activated to emit a beam of visible light, and optical components of the system are adjusted so that the visible beam emitted by the optical alignment element impinges on, and is reflected by, the retroreflective element.