[sdiy] Photoluminicent oscillator, or optical BBD!

[Amos]

Perhaps you could create a zoetrope-oscillator, instead of the CCD
feeding-back on itself, allow it to "look" at a recirculating loop of paper
tape with your waveform written on it. Perhaps with a very wide loop with
multiple tracks, you could draw multiple waveforms stacked vertically one
atop the other and have a paper "wavetable" -- position the CCD so that it
can only see one track or another... or pan it up/down for
wavesequencing.... Neat idea!

(cartoon of a zoetrope... http://howtoons.net/archives/final/zoetrope.html)
imagine a CCD in the center...

On 10/1/05, karl dalen <dalenkarl at yahoo.se> wrote:
>
> Here are a idea for a new oscillator!
>
> Photoluminace oscillator:
>
> Take a B/W camera CCD, (not the camera just the CCD cell),draw a
> waveform of your taste on a piece of white paper, now expose the
> drawing for the CCD, wich means clock the CCD trough all of it cells,
> then when all the CCD cells has ben clocked trough block the CCD photon
> inputs with something, then connect the CCD's output to its input and now
> the "image" would be circulated at the frequency of the CCD clock!
>
> The wave are sort of frozen and then circulated in the CCD to generate a
> continously evolving waveform! (requires a CCD who has a serial input).
>
> Now make the feedback path variable and it become a expencive BBD delay
> cell!
> ;-)
>
> KD
>
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