Srinivasan Krishnan,Jamie Gordon Nichol,Bruce Cichowlas
申请号：
US12855728
公开号：
US20120041283A1
申请日:
2010.08.13
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A hand-held device for evaluating skin or hair condition which includes a housing, a hydration meter, and a plurality of light emitting diodes (LEDs). The hydration meter is supported within the housing and has an external surface portion contactable against skin or hair to measure moisture content. At least one of the LEDs both emits and absorbs light. Advantageously the LEDs include a red, a blue, a green and two infrared wavelength light emitters.
