fresnel solar cooker -Fresnel lens solar cooker using TV lens

June 20, 2013 – 6:22 am

Solar Cooking ** using my fresnel solar cooker made with Fresnel lens 2′x4 ‘from a rear projection TV. Monster cook minced pork, burn a leaf in if …

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  1. 24 Responses to “fresnel solar cooker -Fresnel lens solar cooker using TV lens”

  2. we don’t have junkyards here in oz. but i know you have them in USA so that’s why I mentioned them.

    By Link Knight on Jun 20, 2013

  3. But did you check any of those junkyards that you’ve mentioned?

    By boltofthunder92 on Jun 20, 2013

  4. I already have a stove. This is much more fun.

    By RimstarOrg on Jun 20, 2013

  5. or you could always buy a stove.

    By TheVolatileExplosion on Jun 20, 2013

  6. none yet. but the old italians here used to like to buy the best but then don’t throw anything out. so I hope one of them has something. its winter down here and I’ve been busy anyway.

    By Link Knight on Jun 20, 2013

  7. Yea, if you want to spend 400$ I am a student and I am not rich on top of that, ya know.

    By boltofthunder92 on Jun 20, 2013

  8. I have 2 Fresnel lens that I have hunted down so far, one Toshiba and another from some obscure company. How many did you get?
    -I am really hoping to find a Sony one.

    By boltofthunder92 on Jun 20, 2013

  9. I live in australia, and I went to the place. they now give all the non working tvs to the “tv recycling program”. also, turns out the place is owned by a government subsidized company that just employs disabled people (i thought all the workers there were a bit clueless and plenty with limps). in the USA you have junkyards so it might be an idea to see if someone keeps a lot of old electronics at one in hopes of reselling it. they were sold early to mid 90’s usually. i may post an ad to get one

    By Link Knight on Jun 20, 2013

  10. Do those things exist all over the US? -I live in NC.
    I have been trying to hunt down TVs aswell.

    By boltofthunder92 on Jun 20, 2013

  11. ok

    By Agus Rustono on Jun 20, 2013

  12. Sounds like a good idea. If they let you take just the lens, don’t stop there. There’s also a nice big clear plastic screen, flexible mirror material, lenses in the three projectors at the bottom, speakers, … Of course if you take the whole TV then you’ll have the whole thing anyway.

    By RimstarOrg on Jun 20, 2013

  13. i just remember a place i went to (local gov place that sells junk recovered from the dump) I remember seeing a rear projection TV there. nothing moves from the place for years so I might go back and see if its still there.

    By Link Knight on Jun 20, 2013

  14. Oh, very cool! When it finally bites the dust you can take it out of the TV and reuse to cook with.

    By RimstarOrg on Jun 20, 2013

  15. I’m watching on a fresnel lens right now that’s past it’s time.

    By darrellw82 on Jun 20, 2013

  16. You can buy them commercially. Have a look at greenpowerscience {dot} com.

    By RimstarOrg on Jun 20, 2013

  17. these are the most amazing lenses ever , I was able to recover one last year it is really very powerful and I have plenty of ideas inside my head on how I can use it not just for cooking but also desalinating sea water and may be even creating a small engine , my problem is once these projection tvs stopped being made are we going to find any company willing to make theme for us , these lenses should be everywhere , yes they are dangerous but they could solve plenty of problems

    By Dylan Dog on Jun 20, 2013

  18. Thank you very much! I will try to locate one and then start build one.

    By votsalotos on Jun 20, 2013

  19. No, you can’t get it from a CRT TV. But you also can’t get it from an LCD TV. These lenses are in rear projection TVs. Those have three projectors inside them that reflect off a large mirror and then onto the lens.

    By RimstarOrg on Jun 20, 2013

  20. Ηι , great idea! Can i get the same lens from CRT tv?
    Or only from LCD?
    Thank you.

    By votsalotos on Jun 20, 2013

  21. Ha ha! Okay, fine. I could hear it sizzling. :D

    By RimstarOrg on Jun 20, 2013

  22. yeah…pressing the meat on the pan to make it sizzle…lol…

    By tehcno007 on Jun 20, 2013

  23. yer tellin me, not a smart idea. Now to get a stirling motor ,generator and battery bank.!!! Peace

    By justaman6972 on Jun 20, 2013

  24. Yeah, don’t stand behind it when pointing it at the sun, otherwise you’ll experience what the leaf did in the video. At least it was only your shirt, and not you. Arms length is about the right distance too. My lens’ focal length is around 30 inches.

    By RimstarOrg on Jun 20, 2013

  25. um I did this with an old proj TV got the same size lens and held it at arms length and burned a hole in my shirt, this thing is no joke! I feel like a stooge, won’t be doing that again, should use precautions next time, great vid thanx mate!

    By justaman6972 on Jun 20, 2013

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