Hackaday6y
History Of White LEDs
This was the first method of developing a white LED, and while the LED light bulbs you pick up at the hardware store don’t have individual red, green, and blue LEDs inside, it is still a ...
PC Magazine6y
LED bulb
Although claims are made for some bulbs lasting 25 years ... For example, when red, green and blue LEDs are combined, they produce white light. Another method uses a blue LED and yellow or ...
T33y
There's a new prototype violet LED that won't keep you awake like blue light does
While most of the work is on light bulbs at the moment ... "However, if we use three phosphors [blue, red, and green-emitting], it is possible to carefully tune the ratios of the phosphors ...
Hosted on MSN1mon
As we enter the shortest days of the year here’s the history of light bulbs
The light bulb led to new energy breakthroughs ... Shortly thereafter, researchers demonstrated white light using red, green and blue LEDs. This leads to development of high-definition flat ...
BBC6y
What is colour?
The light that we see is made up of many different colours. There are three primary colours: red, green and blue. They can be combined in different ways to make every other colour. The colour of ...