In the past, perhaps few would have predicted that LEDs in watch displays would be the lighting technology of the future. But it has happened and LEDs are now being used for general lighting purposes. Could OLEDs or laser diodes replace LED technology? And what about light-emitting plants?
Blue light alone does not have a whitening effect. The purpose of the blue light is to speed up the teeth whitening process. It should be used with a bleaching solution. The combination of chemical and blue light significantly increases the final whiteness level of the teeth.
LED lighting devices experience significant energy loss during AC-DC power conversion, electro-optical conversion (electroluminescence), and wavelength conversion. Unlike conventional technologies, in LEDs, all energy losses in the light emitting process are expelled as heat. This presents a major engineering challenge where more than half of the power input is converted...
The most common causes of LED failures are the use of poor quality LEDs, improper soldering of the LEDs, exposure to high temperatures, insufficient heatsink design, no current limitation in the power supply circuit, and problems with the battery.
Beş A, one of the leading enterprises engaged in the design and manufacturing in the lighting electronics in Turkey, was...
The source that provides the power required to operate an LED or LED array is called an LED driver. Constant current power supplies are used to prevent the LEDs from failing by drawing too much current. The constant current LED driver is designed to deliver a constant output current within...
There are two different methods for producing white light with LEDs. The first of these is the RGB method and the other is the phosphor method. The most commonly used option in the lighting industry is the phosphor method. In the phosphor method, a blue LED chip is coated with...
Although LEDs have an unrivaled light output compared to conventional lighting technologies, they still face the challenge of efficiency. The highest efficiency LEDs currently available on the market convert only 60 percent of the electrical power into light. The rest of the energy is released as heat. When excess heat...