A Parabolic solar concentrator

http://www.section9led.com
(save energy with LED bulbs)

6 foot diameter paraboloic solar concentrator

solar.section9tech.com

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[Chronox5]

i'm not a professional but phosperessent material usually provides only little light energy, it would be much more efficient to store the energy with a battery or in form of warm water

[Tubuletastic]

Can somebody tell me, is it possible to get light energy at night with phosperessent material adjacent to the panel?

[sandyt4343]

I can't tell you which model tv's use the correct lense , but I ordered one online from a science and surplus company and got a VERY good lense that was about 36X 48 or there abouts, while they are fragile they are a very good quality and produce enough heat to melt stone. I was able to boil a gal. of water in somewhere around 4 min. in a blackened receiver . I think that it was a better quality than you may get from an old tv and cost $ 125 with shipping. if you have old tv.s why not butcher 1?

[thrundar]

You say the old rear projection TV's have fresnel lenses? Where at in the TV? How old are the TV sets you mention? I have 2 older sets in the house here.

[Matt0401]

I don't think "looking into" a fresnel lense of solar concentrator is a very smart idea. :P

Joking aside, it'd be really cool for someone to try making a solar concentrator out of a fresnel lense and post a vid of it on youtube.

[sandyt4343]

Have you looked into fresnel lenses? they seem to be a faster way to concentrate the same amount of energy. you can get them from old rear projection tv's and over head projectors and also on line . I've made large radar dishes into concentrators but they are bulky and harder to handle as compared to fresnel lenses.And also harder to keep clean with out scratching I've found.

[jgizmo]

hard to see what's going on in the video...but I know you are on the right track.

Im building a solarconcentrator out here in the SW Texas desert at my sustainable living field laboratory...I will subscribe to your channel to see how things progress....check out my videos.

Cheers...

jgizmo

[djdriv3]

i want one