On Wed, 26 Nov 2008 02:03:34 +0000, Morris Dovey wrote
(in article <[email protected]>):
> GarageWoodworks wrote:
>
>> I would probably use a black light bulb for
>> this purpose.
>
> How about a DED (dark emitting diode)?
>
> <slaps self, wanders off mumbling incoherently...>
>
>
I used to oversee a suite of darkrooms for which I had door signs made:
"Caution
Keep door tightly closed to prevent the dark from leaking out."
????
On Nov 25, 9:03=A0pm, Morris Dovey <[email protected]> wrote:
> GarageWoodworks wrote:
> > I would probably use a black light bulb for
> > this purpose.
>
> How about a DED (dark emitting diode)?
>
> <slaps self, wanders off mumbling incoherently...>
>
> --
> Morris Dovey
> DeSoto Solar
> DeSoto, Iowa USAhttp://www.iedu.com/DeSoto/
I've unintentionally made a few dark emitting light bulbs in the
past...Hmmm. I wonder if they would work for this purpose. :^)
Robatoy wrote:
> I often wondered if that 'light-absorption' trick actually works.
> I was told, that in a window-less room, if you took out the light
> switch, and reinstalled it upside down, it would work. The room would
> then normally be lit, and turning on the darkening switch, it would
> suck the light out of the room. Either that, or those hydroponic guys
> in British Columbia are confusing people or something.
Strange you should mention that. My solar panels suck the sunlight out
of the outdoors, convert it to heat, and deliver it indoors.
They work so well that it takes all night for the sun to recharge...
--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/
On Nov 26, 11:00=A0am, Morris Dovey <[email protected]> wrote:
> Robatoy wrote:
> > I often wondered if that 'light-absorption' trick actually works.
> > I was told, that in a window-less room, if you took out the light
> > switch, and reinstalled it upside down, it would work. The room would
> > then normally be lit, and turning on the darkening switch, it would
> > suck the light out of the room. Either that, or those hydroponic guys
> > in British Columbia are confusing people or something.
>
> Strange you should mention that. My solar panels suck the sunlight out
> of the outdoors, convert it to heat, and deliver it indoors.
>
> They work so well that it takes all night for the sun to recharge...
>
> --
> Morris Dovey
> DeSoto Solar
> DeSoto, Iowa USAhttp://www.iedu.com/DeSoto/
The NewFoundland Space Agency has announced a trip to the sun.
To stave off the possibility of getting burnt, they're going at night.
jo4hn has been on their payroll as a consultant.
On Nov 25, 9:03=A0pm, Morris Dovey <[email protected]> wrote:
> GarageWoodworks wrote:
> > I would probably use a black light bulb for
> > this purpose.
>
> How about a DED (dark emitting diode)?
>
> <slaps self, wanders off mumbling incoherently...>
>
> --
> Morris Dovey
> DeSoto Solar
> DeSoto, Iowa USAhttp://www.iedu.com/DeSoto/
I often wondered if that 'light-absorption' trick actually works.
I was told, that in a window-less room, if you took out the light
switch, and reinstalled it upside down, it would work. The room would
then normally be lit, and turning on the darkening switch, it would
suck the light out of the room.
Either that, or those hydroponic guys in British Columbia are
confusing people or something.
GarageWoodworks <[email protected]> wrote in news:f00d4aeb-
[email protected]:
> Does this stuff work as described? I'm considering buying a bottle.
> How dark does the room have to be in order to see fluorescence?
>
> Thanks,
> Brian
> www.garagewoodworks.com
>
I have never used the stuff, but use a black light to see fluorescence in
my work, looking at 8x8 inch glass plates in a portable little "dark
room" - really more a box with a viewing hole.
From the website (watch the wrap):
<http://www.titebond.com/IntroPageTB.ASP?UserType=1
&ProdSel=ProductCategoryTB.asp?prodcat=1>
Titebond II Fluorescent contains a dye that, when viewed under a black
light, enables woodworkers to inspect the glue line and assist in the
cleanup process. It is ideal for most porous materials, is easy to use
and cleans up with water.
What you nwill eed is a lamp that emits UV light. Then you need glasses
that protect your eyes. The darker the area, the better you can see the
fluorescence. In general the good lamps (and especially the filters they
use) are not cheap. Also, UV will damage your skin, so do protect eyes
and skin well!
--
Best regards
Han
email address is invalid
Han <[email protected]> wrote in
news:[email protected]:
> GarageWoodworks <[email protected]> wrote in news:f00d4aeb-
> [email protected]:
>
>> Does this stuff work as described? I'm considering buying a bottle.
>> How dark does the room have to be in order to see fluorescence?
>>
>> Thanks,
>> Brian
>> www.garagewoodworks.com
>>
> I have never used the stuff, but use a black light to see fluorescence
> in my work, looking at 8x8 inch glass plates in a portable little
> "dark room" - really more a box with a viewing hole.
>
> From the website (watch the wrap):
> <http://www.titebond.com/IntroPageTB.ASP?UserType=1
> &ProdSel=ProductCategoryTB.asp?prodcat=1>
>
> Titebond II Fluorescent contains a dye that, when viewed under a black
> light, enables woodworkers to inspect the glue line and assist in the
> cleanup process. It is ideal for most porous materials, is easy to use
> and cleans up with water.
>
> What you nwill eed is a lamp that emits UV light. Then you need
> glasses that protect your eyes. The darker the area, the better you
> can see the fluorescence. In general the good lamps (and especially
> the filters they use) are not cheap. Also, UV will damage your skin,
> so do protect eyes and skin well!
I Googled for "UV viewing cabinet" and this came up. It does look like
what I use.
<http://www.sigmaaldrich.com/catalog/search/ProductDetail/ALDRICH/Z169447
>
--
Best regards
Han
email address is invalid
On Nov 25, 8:45=A0pm, Han <[email protected]> wrote:
> Han <[email protected]> wrote innews:[email protected]=
1:
>
>
>
>
>
> > GarageWoodworks <[email protected]> wrote in news:f00d4aeb-
> > [email protected]:
>
> >> Does this stuff work as described? =A0I'm considering buying a bottle.
> >> How dark does the room have to be in order to see fluorescence?
>
> >> Thanks,
> >> Brian
> >>www.garagewoodworks.com
>
> > I have never used the stuff, but use a black light to see fluorescence
> > in my work, looking at 8x8 inch glass plates in a portable little
> > "dark room" - really more a box with a viewing hole.
>
> > From the website (watch the wrap):
> > <http://www.titebond.com/IntroPageTB.ASP?UserType=3D1
> > &ProdSel=3DProductCategoryTB.asp?prodcat=3D1>
>
> > Titebond II Fluorescent contains a dye that, when viewed under a black
> > light, enables woodworkers to inspect the glue line and assist in the
> > cleanup process. It is ideal for most porous materials, is easy to use
> > and cleans up with water.
>
> > What you nwill eed is a lamp that emits UV light. =A0Then you need
> > glasses that protect your eyes. =A0The darker the area, the better you
> > can see the fluorescence. =A0In general the good lamps (and especially
> > the filters they use) are not cheap. =A0Also, UV will damage your skin,
> > so do protect eyes and skin well!
>
> I Googled for "UV viewing cabinet" and this came up. =A0It does look like
> what I use. =A0
>
> <http://www.sigmaaldrich.com/catalog/search/ProductDetail/ALDRICH/Z169447
>
>
>
> --
> Best regards
> Han
> email address is invalid- Hide quoted text -
>
> - Show quoted text -
Thanks Han. I use one of those at work also (chemist). I use a 254nM
multiple times a day. I would probably use a black light bulb for
this purpose. I think I might give it a try.
-Brian
Robatoy wrote:
> On Nov 26, 11:00 am, Morris Dovey <[email protected]> wrote:
>> Robatoy wrote:
>>> I often wondered if that 'light-absorption' trick actually works.
>>> I was told, that in a window-less room, if you took out the light
>>> switch, and reinstalled it upside down, it would work. The room would
>>> then normally be lit, and turning on the darkening switch, it would
>>> suck the light out of the room. Either that, or those hydroponic guys
>>> in British Columbia are confusing people or something.
>> Strange you should mention that. My solar panels suck the sunlight out
>> of the outdoors, convert it to heat, and deliver it indoors.
>>
>> They work so well that it takes all night for the sun to recharge...
>>
>> --
>> Morris Dovey
>> DeSoto Solar
>> DeSoto, Iowa USAhttp://www.iedu.com/DeSoto/
>
> The NewFoundland Space Agency has announced a trip to the sun.
> To stave off the possibility of getting burnt, they're going at night.
> jo4hn has been on their payroll as a consultant.
I was a "person of interest" on the Ulysses project (solar polar
orbiter) and ended up with a snapshot of the back side of the sun. It's
hard to make out any details in the dark though.
yee haw,
jo4hn
Morris Dovey wrote:
> Robatoy wrote:
>
>> I often wondered if that 'light-absorption' trick actually works.
>> I was told, that in a window-less room, if you took out the light
>> switch, and reinstalled it upside down, it would work. The room would
>> then normally be lit, and turning on the darkening switch, it would
>> suck the light out of the room. Either that, or those hydroponic guys
>> in British Columbia are confusing people or something.
>
> Strange you should mention that. My solar panels suck the sunlight out
> of the outdoors, convert it to heat, and deliver it indoors.
>
> They work so well that it takes all night for the sun to recharge...
>
I like that!
--
Gerald Ross
Cochran, GA
A man is not complete until he is
married, and then he's finished.