Light can be produced and/or controlled electronically in a number of ways. Among the widely used of all the different types of semiconductor diodes are the Light Emitting Diodes or LEDs. It is a PN ...
Virtually all light-emitting diodes used today require phosphors based on so-called rare-earth elements, which are expensive and challenging to obtain. In a collaborative research project between ...
LED, or light emitting diode therapy, is a skincare treatment that uses varying wavelengths of light, including red and blue. NASA originally developed it for plant growth experiments on shuttle ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results