Originally Posted by
jimicrk
I played around with a fresnel lens a few years ago and did a little research on them. If you can get a spot lens they produce a lot more heat then the linear lens. Some people are claiming temps of 3000 to 3500 degrees.
Forgive the source of the video. I thought you might find it interesting.
Thanks for posting this you just inadvertently killed half my potential buys. I have already made some camp cookers for friends that allow them to cook a real meal at the camp site with out dragging the grill or smoker along and in much less time or mess.
I am trying to take this to the next level and make it a practical tool for refiners. I am aware of the difference between spot lenses and fractional lenses. I have obviously studied all those vids.
I can easily buy these lenses on E bay for the same price just thought I might ad some value to big screens for forum members who scrap them.
Sorry to sound pi**ed but I will get over it. I know you were just trying to be helpful.
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