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1. (WO2018100266) DEVICE FOR LIGHTING AND OPTICAL COMMUNICATION COMBINED WITH VIEWING OF THE COMMUNICATION FIELD

Pub. No.:    WO/2018/100266    International Application No.:    PCT/FR2017/053179
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Tue Nov 21 00:59:59 CET 2017
IPC: H04B 10/116
F21V 7/00
F21K 9/233
Applicants: ORANGE
Inventors: DUSSAUME, Philippe
PERRUFEL, Micheline
CUTULLIC, Christophe
Title: DEVICE FOR LIGHTING AND OPTICAL COMMUNICATION COMBINED WITH VIEWING OF THE COMMUNICATION FIELD
Abstract:
The invention relates to a lighting device comprising at least one first fixed light source (DE1) dedicated to lighting, at least one second light source (DE2) dedicated to data transmission by light modulation, first and second refractor optical devices positioned respectively with respect to said first and second light sources, so as to sense the light emitted by said sources and form respectively first and second distinct light beams, said second light beam delimiting a zone adapted for data transmission. The lighting device furthermore comprises a variator (704) of brightness and/or of colour of the first light beam, which is adapted to accentuate or decrease the visibility of the data transmission zone delimited by said second light beam, according to the availability or the unavailability respectively of the data transmission service provided in the transmission zone.