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Europäisches Patentamt

System und Verfahren zur Näherungsdetektion unter Verwendung einer geänderten Lichtmenge des Reflexionslichts | Système et procédé de détection de proximité utilisant un changement de quantité lumineuse de la lumière réfléchie | System and method for proximity sensing using changed light quantity of reflection light

Patentnummer:EP2687813B1
IPC Hauptklasse:G01B001102
Anmelder:
Erfinder:
Anmeldung:17.07.13
Offenlegung:18.07.12
Patenterteilung:28.10.20

Abstract / Hauptanspruch
A proximity sensor and proximity sensing method using a change in light quantity of a reflected light are disclosed. The proximity sensor may include a quantity change detection unit which detects a change in a quantity of reflected light which is output light which has been reflected by an object, where an intensity of the output light changes, and a proximity determination unit which determines a proximity of the object to the quantity change detection unit based on a change in the intensity of the output light and the detected change in the quantity of the reflected light.



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