Light Bulb 7 X More Efficient Than Incandescent

[BretCahill]

Check out the Oct. 4 _Science News_. A tiny tungsten lattice has wavelength
sized holes that allow for an intense light in a narrow bandwidth.

Recently people here were talking about light "rectifiers" and even I was
wondering how to get light out of the nooks and crannies of a spiraled or
folded fluorescent tube.

Let's hear it for Shawn Lin of Sandia Labs!


Bret Cahill

 

[Ian Stirling]

BretCahill <bretcahill@aol.com> wrote:

Check out the Oct. 4 _Science News_. A tiny tungsten lattice has wavelength
sized holes that allow for an intense light in a narrow bandwidth.

Recently people here were talking about light "rectifiers" and even I was
wondering how to get light out of the nooks and crannies of a spiraled or
folded fluorescent tube.

Let's hear it for Shawn Lin of Sandia Labs!

.... Once he gets it working.

--
http://inquisitor.i.am/ | mailto:inquisitor@i.am | Ian Stirling.
---------------------------+-------------------------+--------------------------
He had been eight years upon a project for extracting sunbeams out of cucumbers,
which were to be put in vials hermetically sealed, and let out to warm the air
in raw inclement summers. -- Jonathan Swift, "Gulliver's Travels" (1726)

 

[Ian Stirling]

BretCahill <bretcahill@aol.com> wrote:

Check out the Oct. 4 _Science News_. A tiny tungsten lattice has wavelength
sized holes that allow for an intense light in a narrow bandwidth.

Recently people here were talking about light "rectifiers" and even I was
wondering how to get light out of the nooks and crannies of a spiraled or
folded fluorescent tube.

Let's hear it for Shawn Lin of Sandia Labs!

Assuming that this all pans out.
It'd be around 5% less efficient than fluorecants tubes, and around
50% as efficient as the best floodlights.

--
http://inquisitor.i.am/ | mailto:inquisitor@i.am | Ian Stirling.
---------------------------+-------------------------+--------------------------
Paranoia: A game for the whole family, and anyone else who might be watching.

 

[Jerry G.]

We've been using compact florescent lamps, and these are a great cost
savings in electricity. The 15 watt units put out about the same light as a
60 Watt or a bit better. I tested their output with a light meter, and
found these to radiate the rated amount of light.

You can expect an overall savings of about 40% to 50% over their lifespan,
when including the purchase price. If you calculate the power savings alone,
the savings is about 80%. They are more expensive to purchase, but make up
for the difference over their lifespan.

--

Greetings,

Jerry Greenberg GLG Technologies GLG
=========================================
WebPage http://www.zoom-one.com
Electronics http://www.zoom-one.com/electron.htm
=========================================


"BretCahill" <bretcahill@aol.com> wrote in message
news:20031013184039.12996.00000201@mb-m19.aol.com...
Check out the Oct. 4 _Science News_. A tiny tungsten lattice has
wavelength
sized holes that allow for an intense light in a narrow bandwidth.

Recently people here were talking about light "rectifiers" and even I was
wondering how to get light out of the nooks and crannies of a spiraled or
folded fluorescent tube.

Let's hear it for Shawn Lin of Sandia Labs!


Bret Cahill

 

[BretCahill]

I mentioned the Sandia bulb because
apparently it isn't feasible to scale down
compact fluorescent for bicycle and flash
lights where you REALLY want efficiency.

A tungsten sliver sounds perfect for small
spot lights.

"Jerry G." <jerryg50@hotmail.com> in

Message-id: <bmh0bu$mn5$1@news.eusc.inter.net> writes:

We've been using compact florescent lamps, and these are a great cost
savings in electricity.

The best part about compact fluorescent is
you don't have to change bulbs all the
time.

The worst part is a lack of lamp and
fixtures. I checked out Home Depot and
found nothing.

You can expect an overall savings of about 40% to 50% over their lifespan,
when including the purchase price.

Dollar Store now sells them so they may
already be much more cost effective than
that. There's no warranty on Dollar Store
stuff, however. I'll just have wait and see.


Bret Cahill

 

[Don Klipstein]

In article <20031014212631.22268.00000334@mb-m29.aol.com>, BretCahill wrote:

I mentioned the Sandia bulb because
apparently it isn't feasible to scale down
compact fluorescent for bicycle and flash
lights where you REALLY want efficiency.

A tungsten sliver sounds perfect for small
spot lights.

"Jerry G." <jerryg50@hotmail.com> in
Message-id: <bmh0bu$mn5$1@news.eusc.inter.net> writes:

We've been using compact florescent lamps, and these are a great cost
savings in electricity.

The best part about compact fluorescent is
you don't have to change bulbs all the
time.

The worst part is a lack of lamp and
fixtures. I checked out Home Depot and
found nothing.

You can expect an overall savings of about 40% to 50% over their lifespan,
when including the purchase price.

Dollar Store now sells them so they may
already be much more cost effective than
that. There's no warranty on Dollar Store
stuff, however. I'll just have wait and see.

I have tested two brands of dollar store compact fluorescents for
efficiency. Results: To varying extents below that of other compact
fluorescents but exceeding that of incandescents and halogens. No results
on my end yet for life expectancy. I do have results on color appearance
and partial results on color rendering - definitely worse than those of
nearly all non-dollar-store compact fluorescents for those of warmer
color, and not as bad but subpar in a cooler color that I do not expect to
be favorable for most home use.
Also generally available in lower wattages of 13 watts or less, except
I have seen one 18 watt model of worst efficiency that I ever saw among
compact fluorescents, tied-for-worst-color-rendering among compact
fluorescents in my experience, and it claimed to be equivalent to an 85
watt incandescent while in my experience is about as bright as a 40 watt
one.

More in: http://www.misty.com/~don/cfbest.html

- Don Klipstein (don@misty.com)