Arfa Daily wrote:

Here's a really interesting site

http://www.oksolar.com/led/led_color_chart.htm

Follow the various page links to the chromaticity chart, and " More
information on LEDs" at the bottom. I didn't realise that they were already
in use in street lighting. There is mention of higher colour temperatures
improving human night vision. There is also an interesting LED colour chart,
which shows one at 4500K called "incandescent". A couple of years back, I
was in Disney when they put on a show in front of the Magic Castle. There
was a stage spot set up on the top of a pole, projecting a brilliant white
beam of considerable strength. I didn't take much notice of it, until it
suddenly changed colour. During the show, it produced a whole range of
colours, but I couldn't see that the enclosure was anything like big enough
to accommodate a coloured gel wheel. I remember wondering at the time, if
this had been implemented using very high power RGB LEDs. I suppose that it
is also possible that it could have been a plasma lamp with dichroic mirrors
and LCD panels. Are any LEDs actually powerful enough to make stage lighting
from ? Can they be mounted in any way that allows light collection and
direction through beam forming optics ?

Arfa


LED's are being used for stage lighting, but not in the high power
movers or Ellipsoid's (YET). WHat you probably saw was a martin MAC2000
or such at disney. They have full color mixing onboard VIA DMX

http://www.martin.com/product/produc...MAC2000Profile

THere are some interesting new LED stage lighting also:

http://www.martin.com/productsubgrou...=ledluminaires
http://www.halfbakery.com/idea/LED_20Stage_20Lights
http://www.ledsmagazine.com/news/4/7/1

BOB





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