A sign made of a vertical line of LEDs?

From: Hans Franke <franke_at_sbs.de>
Date: Fri Nov 13 18:36:34 1998

>> Several times in the past I've seen home-brewed and perhaps
>> CPU-driven signs that consist of a single vertical line of
>> perhaps a dozen or two LEDs.

> This has been done a number of times. One of the early electronic magazines
> had a clock that you needed to scan your eyes over to read the time. A
> friend of mine designed a pendulum for an art show with the LED section
> about 6 feet long or so where graphics could be displayed. I don't recall a
> name ever being associated with this type of display. It would be a
> *really* fun thing to do now that multicolor LEDs are available and a full
> color graphics unit could be done fairly "easily".

Basicly the same Idea has been used for a 3D display.
A 2D matrix of LEDs wil be moved fast forward and back,
and the LEDs are fired right in time to give a 3D picture.
It's even available in colour. But it is only visible when
you are in front of the display, so it's mor like a 3D
monitor, since you cant walk around. (A different aproach,
but somewhat similar, works with a spiral up winding acryl
plate on a rotating dish. A Laser highlightens points within
this cylindical volume to produce a picture. Since the
acrylic surface is spiral, the laser can reach every 3D
point with the same angle - the beam comes from above
or beyond).

Gruss
hans

--
Ich denke, also bin ich, also gut
HRK
Received on Fri Nov 13 1998 - 18:36:34 GMT

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