VAN DER MARK, Martinus, Bernardus,VAN DUSSCHOTEN, Anna, Hendrika,VAN PUTTEN, Eibert, Gerjan,'T HOOFT, Gert, Wim
申请号：
EPEP2019/051674
公开号：
WO2019/149600A1
申请日:
2019.01.24
申请国别(地区):
EP
年份:
2019
代理人:
摘要：
The present invention relates to an optical shape sensor (OS), comprising an optical fiber (F2) having a length defining a longitudinal direction, the optical fiber (F2) having at least two fiber cores (C21, C22) extending along the length of the optical fiber (F2), an optical coupling member (OCM2) arranged at a proximal optical fiber end of the optical fiber (F2), the coupling member (OCM2) having a first distal end face (OF2) optically connected to the proximal optical fiber end, and a proximal second end face (IF2) spaced apart from the first distal end face (OF2) in the longitudinal direction of the optical fiber (F2), the optical coupling member (OCM2) being configured to couple light into each of the fiber cores (C21, C22, C23). An optical interface (OI) at a transition from the optical coupling member (OCM2) to the proximal optical fiber end is partially reflective and substantially transmissive, wherein the optical interface (OI) is arranged in such a distance distally from the proximal second end face (IF2) and is configured such that light is reflected at the optical interface (OI) with a reflection intensity distribution which substantially does not overlap with a reflection intensity distribution of light reflected at the second end face (IF2) of the optical coupling member (OCM2).La présente invention concerne un capteur de forme optique (OS), comprenant une fibre optique (F2) ayant une longueur définissant une direction longitudinale, la fibre optique (F2) comportant au moins deux âmes de fibre (C21, C22) s'étendant sur la longueur de la fibre optique (F2), un élément de couplage optique (OCM2) disposé au niveau d'une extrémité proximale de fibre optique de la fibre optique (F2), l'élément de couplage (OCM2) comportant une première face d'extrémité distale (OF2) connectée optiquement à l'extrémité proximale de fibre optique, et une deuxième face d'extrémité proximale (IF2) espacée de la première face d'extrémité distale (OF2) dans la direction longitu
