Yitao Liao,Douglas A. Collins,Theodore J. de Jony,Robert C. Walker,Elaine Taylor
申请号：
US14661546
公开号：
US20160271280A1
申请日:
2015.03.18
申请国别(地区):
US
年份:
2016
代理人:
摘要：
A variety of applications for UV LEDs that are integrated into a system are described, where the UV light is used for disinfection of air or surfaces, or used to detect the scattering light by particles, or used for skin treatment. In one embodiment, the UV light from the UV LEDs is generated internal to a housing and is optically coupled to a transparent or translucent surface touched by the human finger, such as a touch screen, a fingerprint scanner, backlit buttons or keys, a toggle of a light switch, a door knob, etc. The UV light is emitted through the touched surface to periodically disinfect the surface. A visual indication of the UV LEDs being energized is provided for safety, such as energizing visible light LEDs or a phosphor on a portion of the touched surface.
