When it comes to energy-saving lightbulbs, LEDs and CFLs spring to mind. But what about halogen bulbs? They don't get much attention, partly because they've been around for a long time and they use a ...

Spectrometers are exceptionally versatile instruments capable of measuring light intensity in terms of its component wavelengths (i.e. by color). Fiber-coupled, cost-effective spectrometers like the ...

Advances in the power output of light emitting diodes (LEDS) have allowed a LED light curing unit (LCU) with an 8 mm diameter light guide tip to achieve a similar depth of cure in a camphorquinone ...