Researchers have trapped a rainbow - slowing light to a near-stop - in an array of 25, 000 "invisibility cloaks", each smaller than a hair's breadth.
BBC: 'Cloaking' idea traps a rainbow
The website explains how a rainbow is made from light and water - with help from the sun.
BBC: rainbow
Therefore you get more consistent colors, no rainbow effect and also, a lot longer life then light bulb based models.
ENGADGET: Samsung shipping LED based DLP - HL-S5679W HD
The new bulbs will house a "rainbow" of over 100 bulbs that can deliver three types of light.
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The spectrum of light that emerges from such a container will show a series of dark lines interrupting what would be a continuous rainbow.
ECONOMIST: Fundamental physics
Strips of eco-friendly, light-emitting diodes, known as LED lighting, are flexible and can be used to illuminate architectural details in a rainbow of colors.
FORBES: 10 Easy Ways To Decorate Your Home With Lighting
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