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Fun with Fresnel Lenses!

Edmund Optics
2023 ж. 5 Мау.
157 386 Рет қаралды
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Big 'ol flat lens that can melt rocks. Footage from @FamousPeopleHouses #optics #light #lens #science #sciencefacts #stem #stemeducation #scienceexperiment #shorts #shortsvideo

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  • To learn more about optics-related science topics, view Edmund Optics’ Knowledge Center. www.edmundoptics.com/knowledge-center To view the largest selection of optics, laser optics, or other optics-related products, visit our website. www.edmundoptics.com/

    @edmundoptics@edmundoptics8 ай бұрын

    • where did you find this one?

      @shawn_hope@shawn_hope3 ай бұрын

    • What size is that lens?

      @autonomous_collective@autonomous_collective3 ай бұрын

    • Thanks for cool videos. I thought of one for you. Hook a pump up to H2O with some brass pipe. Put the death ray over the brass pipe with the cool water flowing through the pipe. See if the death ray will heat the pipe (and melt through the pipe) or does the water dissipate the heat.

      @chasman9662@chasman96623 ай бұрын

  • A new weapon against the ants

    @XxKillerJayxX@XxKillerJayxX11 күн бұрын

  • Who needs solar panels. This thing will power a steam generator. At least I would think it could.

    @auggiebendoggy@auggiebendoggy4 ай бұрын

    • Sure it will power a steam generator, but solar panels are less complicated, cheaper, don't need maintenance and aren't noisy af 😀

      @SolarCookingGermany@SolarCookingGermany4 ай бұрын

    • @@SolarCookingGermany ur telling methis needs maintenance is noisy af and is too expensive AND too complicated?

      @zelux3521@zelux35212 ай бұрын

    • @@zelux3521 Yes. You'd need at least a mechanical tracker to follow the sun, the electronics, tubing, boiler with safety valve, steam turbine, generator, you have to re-fill water and I don't know if you ever heard a steam turbine running at high speed :) For that money you can get a lot of solar panels that even work with less sunlight.

      @SolarCookingGermany@SolarCookingGermany2 ай бұрын

    • @@SolarCookingGermany whatd i say

      @zelux3521@zelux35212 ай бұрын

    • ​@@SolarCookingGermanythey do need maintenance from time to time tho?

      @Wyrmver@Wyrmver2 ай бұрын

  • I found out about these to late. Must have seen 100s of rear projection TVs thrown out over the years, until of course I wanted one and by then they were all gone except for a few but someone had smashed the screen before I saw them.

    @stusue9733@stusue973311 ай бұрын

    • Lol

      @Kid_2007@Kid_2007Ай бұрын

  • What happens if you focus that point with another Fresnel Lens?

    @Saintjohn2711@Saintjohn27113 ай бұрын

    • It still cant get hotter than the sun you cannot make a fresnel lens output more heat than the input has

      @Boovel@Boovel3 ай бұрын

    • ​@Boovel The sun is pretty hot tho

      @Thisisahandle701@Thisisahandle7013 ай бұрын

    • @@Thisisahandle701 yeah im not saying it isnt

      @Boovel@Boovel3 ай бұрын

    • Unlike mirrors you cannot focus 2 lenses at the same point.

      @SolarCookingGermany@SolarCookingGermany2 ай бұрын

    • Most likely you would destroy the other lens if you put it in the little focused spot

      @georgel03@georgel032 ай бұрын

  • what happens if you see that with a thermal camera without anything in the focus point?

    @oniroboros@oniroboros2 ай бұрын

  • Fresnel lens

    @abhishekartsofhardwork4494@abhishekartsofhardwork44949 ай бұрын

  • I woulda lit half my town on fire as a kid if i had this. I know a dude growing up if we had this our whole day would be nothing but seeing whats the hardest shit we can melt. This thing is a 10year old boys smorgasbord. Just put big rocks n shit underneath it and just stand and stare going 'woah dude'

    @cameronsichmeller6759@cameronsichmeller67592 ай бұрын

  • Really learning more

    @energialivre6999@energialivre69993 ай бұрын

    • Glad to hear it 😀

      @edmundoptics@edmundoptics3 ай бұрын

  • How to get this glass? Give me link pls

    @franciszeknamys7713@franciszeknamys7713Ай бұрын

  • Hey, I have a question, if you backed the rock out of the focal point by a few degrees would it still apply massive radiation heat and eventually heat the entire rock to a maluable state? What if there was multiple angles of radiation focus?

    @lukeking1608@lukeking16085 ай бұрын

    • If you backed up the rock you would be covering a larger area, but it would heat up a lot less quickly because the light won't be as concentrated. And having multiple angles of radiation focus would definitely help the whole rock heat up faster (like if you had multiple lenses), but whatever lens was directly lined up with the sun would have the highest intensity

      @edmundoptics@edmundoptics5 ай бұрын

  • How to buy the lens?

    @jovemcesar5022@jovemcesar5022Ай бұрын

  • With what mirror did you make, this, I want to do it too??👍👍👍👍

    @yulianto9089@yulianto90893 ай бұрын

    • It's a Fresnel lens from an old rear-projection tv

      @SolarCookingGermany@SolarCookingGermany2 ай бұрын

  • Where to buy this ?

    @placesbooklet@placesbooklet2 ай бұрын

  • spetacular! name of the song?

    @aldusax4959@aldusax49592 ай бұрын

    • Feeling the City by Arthur Basov 😀

      @edmundoptics@edmundoptics2 ай бұрын

  • Will it work when the sun is not directly overhead as in the winter months?

    @mrcleanisin@mrcleanisin7 ай бұрын

    • No you need sunlight for it to focus!

      @edmundoptics@edmundoptics7 ай бұрын

    • To be clear, yes this still works in the winter to a lesser degree. Depending on where you live in NA (under 43°N) you can still get enough heat from the sun on the winter solstice to start a fire. (Roughly in the 2 hours period during the solar noon) using this size of a lens. But to gather enough solar energy to melt a rock you would need to use it in the three months period around the summer solstice. (Mid-late spring to mid summer) wind speeds, air quality, and of course clouds all effect the outcome. To various degrees. To calculate the energy pointed towards the focal point you need to use a solar calculator to find the angle of the sun to gain the maximum effect of the light collected. For winter fire, kindling is required, but no kindling needed in summer.

      @Mac_Omegaly@Mac_Omegaly6 ай бұрын

  • this channel underrated as HELLLLL (wait hell is not underrated? yea but u got my point)

    @akira_ko@akira_ko6 ай бұрын

    • Why thank you! 🔥

      @edmundoptics@edmundoptics6 ай бұрын

  • Интересно, в какой степени эта линза концентрирует свет.

    @antonio3131@antonio31313 ай бұрын

  • yeah this is (almost) how solar furnace are made !

    @cylian91@cylian916 ай бұрын

  • You are So nice I wish i had a fresnel lens

    @rainhat1@rainhat12 ай бұрын

  • Paint it blue

    @ohlelongjohnsoniii6216@ohlelongjohnsoniii62167 ай бұрын

  • What's the use of this, other than melting rocks?

    @panoramicview698@panoramicview6983 ай бұрын

    • Concentrating sunlight for solar power, and Fresnel lenses are used in lots of other systems where large lenses are needed and high performance isn't as important

      @edmundoptics@edmundoptics3 ай бұрын

    • I use it for cooking

      @SolarCookingGermany@SolarCookingGermany2 ай бұрын

  • Wait dont they sell this for car. Doesnt this mean it can start car fore

    @Watch-0w1@Watch-0w14 ай бұрын

  • Wait dont they sell this for car. Doesnt this mean it can start car fire

    @Watch-0w1@Watch-0w14 ай бұрын

  • I can get one thats the size of a standard sheet of paper but i doubt it could do anything.

    @ZebbMassiv@ZebbMassiv4 ай бұрын

    • 晴れていれば。 ライターやマッチがない時に小さなフレネルレンズを使って紙や小枝に着火し、その後に薪を燃やすことはできると思います。

      @Feng1shu4@Feng1shu44 ай бұрын

  • Stack 10 fresnel lens and you got a laser beam 😂

    @jop3249@jop32498 ай бұрын

    • No, at that point you're losing efficiency and scattering the light. You make the lens wider and taller though, it is potentially more powerful

      @Revon-Feuer@Revon-Feuer6 ай бұрын

  • Can one of this help solar panels to concentrate more light ?

    @facebooker305@facebooker3054 ай бұрын

    • No, it's a temperature problem. Solar panels lose efficiency drastically when hot

      @SolarCookingGermany@SolarCookingGermany2 ай бұрын

  • Credit the original creator, theif.

    @holywaffles4950@holywaffles49502 ай бұрын

    • They're tagged in the description 😀

      @edmundoptics@edmundoptics2 ай бұрын

    • No they aren't, lying thief.

      @holywaffles4950@holywaffles49502 ай бұрын

  • What if it lens could make by the SiO2 Silicon base asteroid type and connection to origin sands from where the elephant seal sand have community for space exploration precious metals burn asteroid face to get precious metals billion dollar US mitra cahaya berkah BNI bank safe deposit box arise quickly

    @user-dh8gj1pk8n@user-dh8gj1pk8n2 ай бұрын

  • But are you smart enough to pronounce his name?

    @Daniel14550@Daniel145508 ай бұрын

    • Frenel

      @LanaaAmor@LanaaAmor8 ай бұрын

  • I'm interested in the photovoltaic potential of this but it would probably just ruin the materials

    @RonaldRaiden@RonaldRaidenАй бұрын

    • Fresnel lenses like this are used in concentrated photovoltaics applications! So for special solar cells these can be used to gather more energy

      @edmundoptics@edmundopticsАй бұрын
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