FRESNEL LENS 9 SUN COLLECTOR SOLAR POWER SPOT
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Tags: FRESNEL, Solar, fresnel lens, Solar Power, Collector, frame design, LENS
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melting metal= super hot glue
Can you try to melt some coins?
‘
this fresnel len can use on the ants hole and kill it all ants
this is great I love it!
der, like how hot does it get, der
If the TV is pre 1995, it is good, newer tvs are view all angles. So they do not provide a clear lens. They actually are fuzzy and diffused.
i have been told that the screen from a projection tv can do the same thing (focusing light, starting fires etc.) do you know if its a fresnel lens also?
just bought mine, gonna try winter gardening! hahahaaha life is great, thanks Dan
i want some GREEN
=)
I have a lens, but it is from projector lens it is only about 5 inches in diameter and about 8 inches in lenght, it is a cylinder with atleast two lenses in it. It can easily produce the same results as this huge lens
TY 4 the cool video:
I wonder if the beam was narrowed down (concentrated) to pencil led size if it would act like a lazer and cut through glass quickly and more accurately? Or maybe you could even do glass blowing? It’s fun to experiment!
i need to get me one of those things >=D
so many vids of fresnel lens and parabolic mirror burning stuffs…isn’t that polluting the environment? :P
fire ants beware
Stacking them shortens the focal length and because the light must pass through two layers its power is filtered down by whatever percentage of opacity the lenses are. So you get less power.
Dan
Dan, I have two fresnels lenses, both one square foot each. Can you “stack” them and double the power? Like with a space between them?
except for the inside of the car
mm…i don’t think it will look too good after melting it (no joke,the mum’s glass was one of) despite your crack would dissappear
Heh… that would be an interesting way to repair a windshield crack!
Cool vid. It’s amazing to think about how much energy can be found within only 2 X 3 ft of surface area.
I remember when I was a kid playing with my grandfather’s “TV Magnifier” (the exact same as pictured on Wikipedia under “fresnel lens”)… ants would just go “pop.” If I had known there was a chance I could melt glass with it, I would have been more creative with it! Still have it though, maybe I’ll have some fun with it…
you can repair the mum’s broken glass haha
try burning sand with it to see if u can make glass :)
Thank you Rojas, Nicos
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Where can you get a FRESNEL LENS from? I checked ebay today but they only seem to have small ones. Thanks, Nicos