[EMS Discuss] Solar Foundry

Darrell Perko dperko at efn.org
Sat Feb 1 12:37:23 PST 2014


Ask, and ye shall receive!

On 2/1/2014 10:20 AM, Mark Danburg-Wyld wrote:
>
> Now all I need is some unfiltered sunlight...
>
> On Jan 25, 2014 11:37 PM, "Scott" <sceptic4life at gmail.com 
> <mailto:sceptic4life at gmail.com>> wrote:
>
>     > The frosting might not affect infra red as much as visible range.
>
>     > Sent from my iPhone
>
>     On Jan 25, 2014, at 10:20 AM, Bob Miller <kbob at jogger-egg.com
>     <mailto:kbob at jogger-egg.com>> wrote:
>
>     > A 52" irregular plastic box?  We can hold a puppet show!
>     >
>     > If the frosting is on the opposite side from the Fresnel
>     grating, you might be able to buff out the frosting with Novus #2
>     polish.  I have a bottle if you want to try.  If you know what
>     kind of plastic it is, you can also clean it and wet it with
>     [solvent] to melt and re-flow the surface.  The second approach is
>     easier but more likely to destroy the lens if it doesn't work.
>     >
>     > Also, be sure to try passing light through in both dimensions.
>      The interaction of the grating with the frosting may work
>     differently in one direction than the other.
>     >
>     >
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