SmartLite™ PS
Scientific
Compendium
1 Introduction
Unlike conventional halogen lamps, light emitting diodes (LED) produce light in the visible
range of the electromagnetic spectrum via quantum mechanical effects using doped
semiconductors. LED lamps emit highly efficient light in a limited wavelength range. The LED
needs less power than a halogen light bulb, in which the light is generated by heating a
tungsten filament in the presence of a halogen gas.
Due to the fact that the emission spectrum of the blue LED closely matches the absorbance
peak of camphorquinone - the most commonly used photo initiator in visible light cured
dental materials -, the LED units represent a considerable improvement over halogen lamps
due to the improved conversion efficiency and longer LED life time.
Thus, this technology is an ideal basis for cordless devices improving the convenience of the
curing procedure in the dental surgery. Noisy and uncomfortable cooling fans, necessary in
traditional Quartz-Tungsten-Halogen (QTH) curing lights, are not needed due to the higher
efficiency of LEDs.
SmartLite PS is an LED curing light that is small and easy to use, yet powerful and swift in
curing. The following information will provide details on the curing performance and
demonstrate the high efficiency and safety of this new curing device. Properties that make it
ideal as replacement of traditional QTH curing units.
2
SmartLite PS Design
2.1 LED-Tip
The black anodized aluminium tip of the SmartLite PS comprises a grip, enabling the
operator to rotate the tip in an easy manner. Furthermore, an easy orientation of the LED-tip
is given even in situations of low brightness and limited space by a crosshair on the backside
of the tip, indicating the direction of the light.
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