Unsworth, Austin E.,Lockamy, H. Thomas,Dagher, Nabil,Li, Wei,Swayne, Jamie
申请号：
AU2008307694
公开号：
AU2008307694B2
申请日:
2008.08.14
申请国别(地区):
AU
年份:
2013
代理人:
摘要：
An electrically powered light source including a light emitting diode (LED)having variable chromaticity, which is adapted for use in a dental operatory.A dental operatory lamp includes a thermally conductive housing having a frontdirected toward the operating area and a rear away from the operating area a generallyelliptical reflector located on the rear of the thermally conductive housingat least one heat pipe a plurality of color LEDs projecting light toward the ellipticalreflector, the plurality of LEDs being in thermal contact with the at least oneheat pipe and an optical light guide for combining light from said LEDs. Anotherembodiment of the lamp includes at least two user selectable light spectra, oneof said spectra providing white light with color temperature in the range 4000°K- 6000°K and one spectra having reduced output in the wavelength range 400-500nm.
