公开(公告)号：US10072973B2

公开(公告)日：2018-09-11

申请号：US15301028

申请日：2015-03-30

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Henning Maass ,  Guido Josef Müsch ,  Xavier Louis Marie Antoine Aubert ,  Elsa Inger Stapel Møst ,  Leo Jan Velthoven ,  Folke Charlotte Noertemann ,  Mauro Barbieri ,  Enrique Antonio Gil Ponce

IPC: G01J1/42 ,  G01J1/02

CPC classification number: G01J1/4204 ,  G01J1/0219 ,  G01J1/0228 ,  G01J1/4228 ,  G01J2001/4266

Abstract: The present disclosure pertains to a light sensing system configured to determine an amount of ambient light exposure experienced by a subject. The present invention wirelessly exchanges light information between different wearable devices of the same user and/or between devices of different users. Local and/or central light profile databases are built-up by the system and are shared between the devices so that light data that is typical for a location at a specific time of day and year can be used to estimate current ambient light levels for situations in which no measurement can be taken.