Andreas M. Geldmacher,Korbinian Gerlach,Johannes Fink,Stefan K. Welker
申请号：
US15564653
公开号：
US20180092543A1
申请日:
2016.03.31
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A dental light irradiation device has sensing means for sensing a change of a position of the device, and an indicator for physically indicating the position change. The invention helps controlling the positioning of the device during use.
