http://www.bbc.co.uk/news/science-environment-20553143

On 03/12/2012 09:48, Phil wrote:
http://www.bbc.co.uk/news/science-environment-20553143

Peculiar how someone chose the headline:

Plastic bulb promises truer light

It looks like dumbing down of the original "polymer" - after all, the
lamp could easily be made with a glass sheet - or possibly tube - in its
construction. And there seems to be no bulb-like quality (i.e. glass
envelope) to warrant that term.


http://www.sciencedirect.com/science...66119912004831

--
Rod

On 3 Dec 2012 10:17:54 GMT, Huge wrote:

And I thought electroluminous materials were old hat?

Last para does say he has had one working for 10 years in his lab... I
guess those ten years have been spent getting the light output up from a
dim glow and the colour sensible.

--
Cheers
Dave.

Is this these light emitting panels thingys?
I understand that at present they are not cheap, very bright or long lived,
which seems to me to be a bit of a problem.

Brian

--
From the Sofa of Brian Gaff Reply address is active
"Phil" wrote in message
...
http://www.bbc.co.uk/news/science-environment-20553143

Yes those lights wer awful, and there were also some that used to glow a
naff shade of orange as well I seem to recall.
Brian

--
From the Sofa of Brian Gaff Reply address is active
"Huge" wrote in message
...
On 2012-12-03, Phil wrote:
http://www.bbc.co.uk/news/science-environment-20553143

"compact fluorescent bulbs which have become very popular in recent
years."

Ubiquitous? Yes. Popular? No.

And I thought electroluminous materials were old hat? I have a nightlight
that uses them, although the light is a ghastly blue-green colour.

--
Today is Boomtime, the 45th day of The Aftermath in the YOLD 3178
"I saw Lon Cheney walking with the Queen."

So when will we get light emitting wallpaper? Brian

--
From the Sofa of Brian Gaff Reply address is active
"polygonum" wrote in message
...
On 03/12/2012 09:48, Phil wrote:
http://www.bbc.co.uk/news/science-environment-20553143

Peculiar how someone chose the headline:

Plastic bulb promises truer light

It looks like dumbing down of the original "polymer" - after all, the lamp
could easily be made with a glass sheet - or possibly tube - in its
construction. And there seems to be no bulb-like quality (i.e. glass
envelope) to warrant that term.


http://www.sciencedirect.com/science...66119912004831

--
Rod

Brian Gaff wrote:
Yes those lights wer awful, and there were also some that used to glow a
naff shade of orange as well I seem to recall.
Brian



How come you all seem to get a page from this url when it does not work
for me?

Phil wrote:
http://www.bbc.co.uk/news/science-environment-20553143

"... could replace fluorescent bulbs"

That's ok then, the fluorescent lamps I've just bought are twin
helixes, not bulbs.

JGH

On 03/12/2012 14:44, F Murtz wrote:
Brian Gaff wrote:
Yes those lights wer awful, and there were also some that used to glow a
naff shade of orange as well I seem to recall.
Brian



How come you all seem to get a page from this url when it does not work
for me?

It says:

US researchers say they have developed a new type of lighting that could
replace fluorescent bulbs.

The new source is made from layers of plastic and is said to be more
efficient while producing a better quality of flicker-free light.

The scientists behind it say they believe the first units will be
produced in 2013.

Details of the new development have been published in the journal
Organic Electronics.
Continue reading the main story
“Start Quote

What we've found is a way of creating light rather than heat”

Prof David Carroll Wake Forest University
Brighter white

The new light source is called field-induced polymer electroluminescent
(Fipel) technology. It is made from three layers of white-emitting
polymer that contain a small volume of nanomaterials that glow when
electric current is passed through them.

The inventor of the device is Dr David Carroll, professor of physics at
Wake Forest University in North Carolina. He says the new plastic
lighting source can be made into any shape, and it produces a better
quality of light than compact fluorescent bulbs which have become very
popular in recent years.

"They have a bluish, harsh tint to them, " he told BBC News, "it is not
really accommodating to the human eye; people complain of headaches and
the reason is the spectral content of that light doesn't match the Sun -
our device can match the solar spectrum perfectly.

"I'm saying we are brighter than one of these curly cube bulbs and I can
give you any tint to that white light that you want."
Continue reading the main story
Lighting up the world


There have been several attempts to develop new light-bulbs in recent
years - Light Emitting Diodes (LEDs) have come a long way since they
were best known for being indicator lights in electronic devices. Over
the past decade, they have become much more widely used as a light
source as they are both bright and efficient. They are now often used on
large buildings.
Light not heat

Another step forward has been organic LEDs (OLEDs) which also promise
greater efficiency and better light than older, incandescent bulbs.
Their big advantage over LEDs is that they can be transformed into many
different shapes including the screens for high-definition televisions.

But Prof Carroll believes OLED lights haven't lived up to the hype.

"They don't last very long and they're not very bright," he said.
"There's a limit to how much brightness you can get out of them. If you
run too much current through them they melt."

The Fipel bulb, he says, overcomes all these problems.

"What we've found is a way of creating light rather than heat. Our
devices contain no mercury, they contain no caustic chemicals and they
don't break as they are not made of glass."

Prof Carroll says his new bulb is cheap to make and he has a "corporate
partner" interested in manufacturing the device. He believes the first
production runs will take place in 2013.

He also has great faith in the ability of the new bulbs to last. He says
he has one in his lab that has been working for about a decade.

--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

John Rumm wrote:
On 03/12/2012 14:44, F Murtz wrote:
Brian Gaff wrote:
Yes those lights wer awful, and there were also some that used to glow a
naff shade of orange as well I seem to recall.
Brian



How come you all seem to get a page from this url when it does not work
for me?

It says:

US researchers say they have developed a new type of lighting that could
replace fluorescent bulbs.

The new source is made from layers of plastic and is said to be more
efficient while producing a better quality of flicker-free light.

The scientists behind it say they believe the first units will be
produced in 2013.

Details of the new development have been published in the journal
Organic Electronics.
Continue reading the main story
“Start Quote

What we've found is a way of creating light rather than heat”

Prof David Carroll Wake Forest University
Brighter white

The new light source is called field-induced polymer electroluminescent
(Fipel) technology. It is made from three layers of white-emitting
polymer that contain a small volume of nanomaterials that glow when
electric current is passed through them.

The inventor of the device is Dr David Carroll, professor of physics at
Wake Forest University in North Carolina. He says the new plastic
lighting source can be made into any shape, and it produces a better
quality of light than compact fluorescent bulbs which have become very
popular in recent years.

"They have a bluish, harsh tint to them, " he told BBC News, "it is not
really accommodating to the human eye; people complain of headaches and
the reason is the spectral content of that light doesn't match the Sun -
our device can match the solar spectrum perfectly.

"I'm saying we are brighter than one of these curly cube bulbs and I can
give you any tint to that white light that you want."
Continue reading the main story
Lighting up the world


There have been several attempts to develop new light-bulbs in recent
years - Light Emitting Diodes (LEDs) have come a long way since they
were best known for being indicator lights in electronic devices. Over
the past decade, they have become much more widely used as a light
source as they are both bright and efficient. They are now often used on
large buildings.
Light not heat

Another step forward has been organic LEDs (OLEDs) which also promise
greater efficiency and better light than older, incandescent bulbs.
Their big advantage over LEDs is that they can be transformed into many
different shapes including the screens for high-definition televisions.

But Prof Carroll believes OLED lights haven't lived up to the hype.

"They don't last very long and they're not very bright," he said.
"There's a limit to how much brightness you can get out of them. If you
run too much current through them they melt."

The Fipel bulb, he says, overcomes all these problems.

"What we've found is a way of creating light rather than heat. Our
devices contain no mercury, they contain no caustic chemicals and they
don't break as they are not made of glass."

Prof Carroll says his new bulb is cheap to make and he has a "corporate
partner" interested in manufacturing the device. He believes the first
production runs will take place in 2013.

He also has great faith in the ability of the new bulbs to last. He says
he has one in his lab that has been working for about a decade.

Thanks, interesting.
Dont know why some people are getting 404 messages on that url though.