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Re: [APD] Plus points

Vapor... Very good point there.

While I'm willing to believe the chemists involved made some viable
"microdots", not even the Vanderbilt article discusses the process
through which they were made, or how expensive it is.

These dots may hold the key to lower-cost and more efficient lighting,
but it could be decades before chemical production facilities gear up
to produce them in sufficient quantities for mass-consumption.

The plus side I'm excited to see (a bit pie-in-the-sky here, sorry) is
if it will work with blue EL panels ... electroluminescent lighting is
probably the most efficient commonly available lighting technology
available but the blue-green light it produces isn't very useful.   If
that were changed to white light with these dots, EL panels of any
size could be produced and installed to light large areas.


On 10/27/05, S. Hieber <shieber at yahoo_com> wrote:
> Yes, Edison pushed the DC is safer than AC thing back when
> he had lots of patents for DC power generation and power
> distribution and nothing for AC.
> There are advantages and disadvantages to each but being
> generally safer than the other isn't one for either holds
> over the other. As Adrew pointed out, what one gains in
> voltage reduction, one offsets with increase in current.
> There are also diffs in how they conduct -- higher freqs
> tend to travel on the conductor surface (aka, the skin
> effect) rather than in it.
> Paint on lights, great if they ever go into production and
> do something better than existing devices. But I'm still
> waiting for the magic headlights that will "melt" the fog
> as you drive along (part of a light bulb manufacturer's
> magazine ad campaign in the 1960s). Speaking of vapor,
> until it's released to manufacturing, that might be all it
> ever is. The future holds many a great promise; but someget
> broken when they cross over from future to pastn ;-)
> Otoh, sometimes it's just a matter of more time -- the
> fiber optic folks had to make novelty table lamps to keep
> their business alive until the medical industry and others
> finally caught on to the practical use of the fiber, about
> a decade or two after the fiber makers were ready to
> produce.
> sh
> --- Andrew McLeod <thefish at theabyssalplain_freeserve.co.uk>
> wrote:
> > On Thu, 27 Oct 2005 14:27:20 +0100, Stuart Halliday
> > <stuart at stuarthalliday_com> wrote:
> >
> > > Another big plus point will be safely. These will be DC
> > powered rather than
> > > AC, so no need for high dangerous voltages or broken
> > glass hazards.
> > > Therefore less of a fire risk.
> >
> > I know someone who nearly set fire to their roof
> > insulation because they used 'low voltage' lighting...
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