something to diffuse led light?

M

mcjam

Guest
Anyone have a good idea for something around the house I could use? I
converted an automotive-like lamp to use 4 leds. It looks like 4 leds in
there instead of one light. Would be cool if I could diffuse it somewhat.

Frosted glass maybe? bubble wrap? I'm experimenting..
--
✝
 
On Tue, 19 Jul 2011 20:48:04 -0800, mcjam wrote:

Anyone have a good idea for something around the house I could use? I
converted an automotive-like lamp to use 4 leds. It looks like 4 leds in
there instead of one light. Would be cool if I could diffuse it
somewhat.

Frosted glass maybe? bubble wrap? I'm experimenting..
Click to expand...
Waxed paper? Sand the inside of the lens?

--
www.wescottdesign.com
 
On Tue, 19 Jul 2011 23:54:33 -0500, Tim Wescott
<tim@seemywebsite.com> wrote:

On Tue, 19 Jul 2011 20:48:04 -0800, mcjam wrote:

Anyone have a good idea for something around the house I could use? I
converted an automotive-like lamp to use 4 leds. It looks like 4 leds in
there instead of one light. Would be cool if I could diffuse it
somewhat.

Frosted glass maybe? bubble wrap? I'm experimenting..

Waxed paper? Sand the inside of the lens?
Click to expand...
Waxed paper works very good on a small scale. I've used it
to diffuse light entering into a fiber optic cable with
excellent results, in a pinch.

Grinding the LED surfaces with rough sandpaper comes to mind,
too, though I've not attempted that and it can't be as good
as waxed paper. But then, if the wax melts....

Pot the LEDs into some plastic resin mixed with alumina
powder?

For a quick test, I'd be back to wax paper or else parchment
paper though.

Jon
 
"Jon Kirwan" <jonk@infinitefactors.org> wrote in message
news:tapc271jto7uh5hecjaftctjato0knplgl@4ax.com...
On Tue, 19 Jul 2011 23:54:33 -0500, Tim Wescott
tim@seemywebsite.com> wrote:

On Tue, 19 Jul 2011 20:48:04 -0800, mcjam wrote:

Anyone have a good idea for something around the house I could use? I
converted an automotive-like lamp to use 4 leds. It looks like 4 leds in
there instead of one light. Would be cool if I could diffuse it
somewhat.

Frosted glass maybe? bubble wrap? I'm experimenting..

Waxed paper? Sand the inside of the lens?

Waxed paper works very good on a small scale. I've used it
to diffuse light entering into a fiber optic cable with
excellent results, in a pinch.

Grinding the LED surfaces with rough sandpaper comes to mind,
too, though I've not attempted that and it can't be as good
as waxed paper. But then, if the wax melts....

Pot the LEDs into some plastic resin mixed with alumina
powder?

For a quick test, I'd be back to wax paper or else parchment
paper though.

Jon
Click to expand...
Yep, try a couple of layers of Baking paper at a distance

Mark
 
On Tue, 19 Jul 2011 20:48:04 -0800, mcjam <nospam@nospam.com> wrote:

Anyone have a good idea for something around the house I could use? I
converted an automotive-like lamp to use 4 leds. It looks like 4 leds in
there instead of one light. Would be cool if I could diffuse it somewhat.

Frosted glass maybe? bubble wrap? I'm experimenting..
Click to expand...
Maybe etch the LED surfaces or the inside surface of the lamp with
something like an "Air Eraser"
<http://www.paascheairbrush.com/Etching_Striping_Tools-AEC-K.html>

It's not likely to qualify as "around the house" but if you do already
have an air compressor, a mini-sandblaster can be a useful addition to
the tool kit.

Better picture
<http://www.micromark.com/Paasche-Air-Eraser-Mini-Sandblast-Gun-Set,9117.html>

--
Rich Webb Norfolk, VA
 
In article <j05mgb$f9c$1@news.mixmin.net>, mcjam <nospam@nospam.com>
wrote:

Anyone have a good idea for something around the house I could use? I
converted an automotive-like lamp to use 4 leds. It looks like 4 leds in
there instead of one light. Would be cool if I could diffuse it somewhat.

Frosted glass maybe? bubble wrap? I'm experimenting..
Click to expand...
Around my house I'd grab some Mylar drafting film. Your house may vary.
Piece of plastic milk jug might work OK. Anything will cut down the
total light output somewhat.

--
Cats, coffee, chocolate...vices to live by
Please don't feed the trolls. Killfile and ignore them so they will go away.
 
On Jul 20, 12:48 am, mcjam <nos...@nospam.com> wrote:
Anyone have a good idea for something around the house I could use? I
converted an automotive-like lamp to use 4 leds. It looks like 4 leds in
there instead of one light. Would be cool if I could diffuse it somewhat.

Frosted glass maybe? bubble wrap? I'm experimenting..
--
✝
Click to expand...
Scotch tape (the semi transparent kind) is the 'classic' quick and
easy diffusor. As long as it's not too much power.

George H.
 
Op 7/20/2011 6:48 AM, mcjam schreef:
Anyone have a good idea for something around the house I could use? I
converted an automotive-like lamp to use 4 leds. It looks like 4 leds in
there instead of one light. Would be cool if I could diffuse it somewhat.

Frosted glass maybe? bubble wrap? I'm experimenting..
Click to expand...
Is this allowed in your car?

--
pim.
 
tuinkabouter submitted this idea :
Op 7/20/2011 6:48 AM, mcjam schreef:
Anyone have a good idea for something around the house I could use? I
converted an automotive-like lamp to use 4 leds. It looks like 4 leds in
there instead of one light. Would be cool if I could diffuse it somewhat.

Frosted glass maybe? bubble wrap? I'm experimenting..

Is this allowed in your car?
Click to expand...
Probably not, and certainly not if he was in Australia.
 
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Hash: SHA1

Mark Kelepouris wrote:
"Jon Kirwan" <jonk@infinitefactors.org> wrote in message
news:tapc271jto7uh5hecjaftctjato0knplgl@4ax.com...
On Tue, 19 Jul 2011 23:54:33 -0500, Tim Wescott
tim@seemywebsite.com> wrote:

On Tue, 19 Jul 2011 20:48:04 -0800, mcjam wrote:

Anyone have a good idea for something around the house I could use? I
converted an automotive-like lamp to use 4 leds. It looks like 4 leds in
there instead of one light. Would be cool if I could diffuse it
somewhat.

Frosted glass maybe? bubble wrap? I'm experimenting..

Waxed paper? Sand the inside of the lens?

Waxed paper works very good on a small scale. I've used it
to diffuse light entering into a fiber optic cable with
excellent results, in a pinch.

Grinding the LED surfaces with rough sandpaper comes to mind,
too, though I've not attempted that and it can't be as good
as waxed paper. But then, if the wax melts....

Pot the LEDs into some plastic resin mixed with alumina
powder?

For a quick test, I'd be back to wax paper or else parchment
paper though.

Jon

Yep, try a couple of layers of Baking paper at a distance

Mark
Click to expand...

That reminded me of those paper cups used to bake muffins. You'd get a
neat pleat all the way around the LED light. Kinda like a miniature
floor lamp, those old ones with a Tri-Lite bulb in them.


mike





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John G wrote:

tuinkabouter submitted this idea :
Op 7/20/2011 6:48 AM, mcjam schreef:
Anyone have a good idea for something around the house I could use? I
converted an automotive-like lamp to use 4 leds. It looks like 4 leds in
there instead of one light. Would be cool if I could diffuse it
somewhat.

Frosted glass maybe? bubble wrap? I'm experimenting..

Is this allowed in your car?

Probably not, and certainly not if he was in Australia.
Click to expand...
Don't worry it's not going on the car. Its just a sign. :)

--
✝
 
On Tue, 19 Jul 2011 20:48:04 -0800, mcjam wrote:

Anyone have a good idea for something around the house I could use? I
converted an automotive-like lamp to use 4 leds. It looks like 4 leds in
there instead of one light. Would be cool if I could diffuse it
somewhat.

Frosted glass maybe? bubble wrap? I'm experimenting..
Click to expand...
A ping pong ball, or half of it.
Sanded PMMA (Perspex) should also do the work.
 
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