ПРЕСУРА Кристиан Николае (NL),НИКОЛАЕ Андрей (NL),ЯКОБИ Михел (NL)
申请号：
RU2018121341
公开号：
RU2018121341A
申请日:
2016.11.02
申请国别(地区):
RU
年份:
2019
代理人:
摘要：
A photoplethysmography device comprises a light source configured to direct source light towards an external object； a light sensor arranged and configured to provide a sensor signal indicative of an intensity of a first source light fraction, which has been scattered by the external object； a casing for housing the light source and the light sensor, and having a cover plate transparent for the source light and an outer face to be facing the external object； and an optical blocking arrangement in the casing between the at least one light source and the outer face of the cover plate and configured to block a second source light fraction on its propagation path extending from the light source to the outer face of the cover plate and from the outer face of the cover plate to the light sensor without leaving the casing.
