AMSTERDAM, May 21 (Reuters) - Philips
The world's largest maker of lights said on Thursday France's biggest retailer Carrefour
Shoppers interested in using the service will need to install a Carrefour mobile software app on their smartphones and opt in.
The LED lights used in the store can then transmit data to smartphones using light pulses not detectable by the human eye, but registered by smartphone cameras.
As a shopper passes by, say, the juice aisle, the app could be used to display coupons or more detailed information about the products on the shelves.
Philips and Carrefour did not provide financial details of the deal.
(Reporting by Toby Sterling; Editing by Mark Potter) ((toby.sterling@thomsonreuters.com; +3120 504 5002;))
Keywords: PHILIPS CARREFOUR/TECH