公开(公告)号：US20180103730A1

公开(公告)日：2018-04-19

申请号：US15729694

申请日：2017-10-11

Applicant: The Swatch Group Research and Development Ltd

Inventor： Dimitri FOSTINIS ,  Cedric Nicolas ,  Pierpasquale Tortora

IPC: A44C5/14 ,  G04B37/14

CPC classification number: A44C5/14 ,  A44C5/0007 ,  G04B37/08 ,  G04B37/1486 ,  G04B47/063 ,  G04B47/066 ,  G04G17/04 ,  G04G21/00 ,  G04G21/02

Abstract: The invention relates to an electronic strap for a timepiece, comprising: a printed circuit board an insert disposed on the printed circuit board, comprising a guide element provided to be placed between and fixed to a pair of horns of a watch case (BM), the guide element comprising a lightwave guide comprising: an input disposed on an interface between the guide element and the printed circuit board a first output disposed so as to be opposite a first zone of the watch case (BM) between the two horns when the guide element is placed between and fixed to the pair of horns a first portion connecting the input to the first output a lightwave emitter installed on the printed circuit board, at the level of the input of the wave guide.