Robert Couronne,Fabio Ciancitto,Sergey Ershov,Christian Weigand,Hans-Josef Gassmann,Rainer Haevescher
申请号：
US13081186
公开号：
US09681830B2
申请日:
2011.04.06
申请国别(地区):
US
年份:
2017
代理人:
摘要：
A device for detecting a vital parameter is described, comprising: an optoelectronic sensor arrangement for detecting the vital parameter by means of light remission at a finger, wherein the optoelectronic sensor arrangement has a first light source for generating light in a visible wavelength range, a second light source for generating light in a non-visible wavelength range and a light-sensitive element and a controller which is implemented to switch on the second light source in temporal intervals, execute an evaluation of the light received from the light-sensitive element in the invisible wavelength range of the second light source with respect to whether a finger is applied to the optoelectronic sensor arrangement and to switch on the first light source as soon as the evaluation indicates that a finger is applied to the optoelectronic sensor arrangement.
