Eefje Janet Arts-Hornix,Abraham Rudolf Balkenende,Cornelis Reinder Ronda
申请号：
US14354389
公开号：
US20140301897A1
申请日:
2011.10.26
申请国别(地区):
US
年份:
2014
代理人:
摘要：
The invention relates to the treatment of a medium, particularly to the purification of water, air, or surfaces. A photo-active layer (120) is disposed on an energy-transfer surface (111) of a substrate (110). Thus light energy transfer from said substrate (110) to the photoactive layer (120) is directly achieved without an intermediate passage through the medium. The substrate (110) may preferably be a waveguide from which light energy is transferred into the photoactive layer (120) via evanescent waves. Moreover, the optical coupling between the substrate (110) and the photoactive layer (120) may spatially vary.
