Color-changing lighting using LEDs has been around now for over 10 years, and is now, probably, the dominant lighting technology in architectural and entertainment dynamic lighting applications. LED technology has continued to evolve, often with the addition of a 4th control channel—white or amber—to expand the color gamut. Moreover, multi-chip LEDs have improved the color-mixing cabilities of lighting fixtures.
Over the same period, the range of options to drive the LEDs has also expanded dramatically. However, many of these sophisticated solutions are chip-based and require extensive electronics expertise and investment to arrive at a final drive solution. This may be fine for entertainment companies with in-house electronics capabilities, but, in the architectural and general lighting segments, dynamic color-change projects are often project-specific and have to be supplied on short delivery times.
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This article was published in the Jan/Feb 2010 issue of LEDs Magazine. To read the full version of this article, please visit our magazine page, where you can download FREE electronic PDF versions of all issues of LEDs Magazine. You can also request a print copy of LEDs Magazine (available by paid subscription) and sign up for our free weekly email newsletter.
