Marius Iosif BOAMFA,Rieko VERHAGEN,Martin JURNA,Kiran Kumar THUMMA,Bastiaan Wilhelmus Maria MOESKOPS,Mark Thomas JOHNSON
申请号：
US16754201
公开号：
US20200278536A1
申请日:
2018.10.01
申请国别(地区):
US
年份:
2020
代理人:
摘要：
There is provided a method (500) of treating an optical waveguide. The method comprises applying (502) the volume of ferrofluid to the optical waveguide, and applying (504) a magnetic field to the volume of ferrofluid to move the volume of ferrofluid at least partially along a length of the optical waveguide. A personal care device and a system are also disclosed.
