Bonjour, je me suis aussi posé cette question, est il possible de stocker l’énergie en la « piégeant » quelque part, dans votre cas un batterie à sable. J’avoues ne pas avoir la réponse. Dans votre cas, je ferai attention au diamètre de la lentille et l’ouverture numérique de la fibre ( en gros si la lentille est trop grosse une partie du signal risque de ne pas être injectée), le diamètre de la tache focal ( mais là il suffit de mettre plusieurs fibre pour capter le max de lumière), la température a l’intérieur de la batterie (pour ne pas brûler la fibre, mais bon le point de fusion du verre reste élevé). En tout cas si vous faites des tests, je suis curieux. Pour l’expérience de la fibre qui allume une allumette, c’était un couplage lentille de fresnel ( très plate ) et une grosse fibre (2 mm de diamètre de mémoire, mais très très rigide)

@@3DIYCaptain merci pour le retour. Oui il s'emblerais qu'il y ai 2 types de fibres qui soient utilisable dans ce cas de figure en silice ou en quartz (je n'ai pas trouver le point de fusion du cable quartz) Mais avec les possible +1000°C va falloir bien viser les fibres. Et je suppose qu'il faudra laisser une distance de securité entre la sorite fibre et"l'impacte" dans la batterie. A tester reste a voir ou acheter la bonne fibre et faire les tests

Never but I would like to do it !! I see it at the end of the fibers so just one is needed …

I agree at 100% with you

Shame on me :/ but it will move soon :)

Thank you

If you were to filter the light, you could polarize it into a laser. I need these optics

@fasted8468 wow I don’t know if it can work like that but that would be cool to make a laser from sunlight

@@3DIYCaptain lasers only work on a few frequencies of light so you could filter it with red marker or whatever. I have this loose theory about light that there are only 3 forms Red right Yellow center Blue left I'll elaborate

@@3DIYCaptain when there is more fuel than air, the light burns red. Whe there is more air than fuel, blue. Centrifiacal and Centrifugal. The quest ion I have not answered is where the yellow comes from.

@@3DIYCaptain it is no coincidence that fire usually only comes in 3 colors. In the absence of metals like borax or copper. Red. Yellow. Blue.

Hi, where do you want to put this optical component ?

@@3DIYCaptain in Florida USA for starters :) but all I need are fiber optical cables

Hello friend, my email is in my information profile

Yes, it was about 1mm diameter, but really don’t recommend plastic fiber, really bad optics properties but will do the job for a fun project

1/ this solution might not be too expensive if a lot of sun collector were made, I’m thinking of providing a kit soon, and there is practically no aging component. Regarding the number, I don’t know, depends on what you are looking for. 2/ I don’t know 3/ there is a fire hazard, and that’s the tricky part of this project. I made another video where I started a fire using an optical fiber ! Check it on my channel ;)

No calculation, I just put the maximum I was able to :)

Bigger works, but be careful with heat

Thank you for your message ! The collimation will heat, but using a silica based fiber is not a problem, the fusion point of silica is high, and for small lenses no worry. Heat is excitation of particule by light (or other). And fiber are made to conduct light ( even very power full one like laser) so inside the fiber, using small lenses, I don’t think it’s a problem, but that’s my thinking, someone should look more closely at the theory a some point

I got mine on eBay

Bien joué, cette faute a traîné pendant 10ans… merci à vous !

@@3DIYCaptain, bonsoir. J' ai vu une autre coquille : l' appui d' un piéton ... pas l' appuie. MAIS superbe vidéo ! Merci.

merci et merci ! fautes corrigées@@malikoco

@@3DIYCaptain, entre passionnés, on peut s' aider !

It was 1mm I think, but I do not recommend using plastic fiber, too many optical losses !!

I would not recommend using plastic fiber , for the diameter it depends on the size of your lens and the numerical aperture of the fiber

I found mine on eBay ! But not easy to find now

Merci

That’s a really good question and I don’t the answer … yet … you need to have the collecting surface and to know the optical losses of your collector (lenses, coupling efficiency with the fiber, propagation loss, what are you using at the output of the fiber …). I hope to get those information one day …

@@3DIYCaptain1. you can major heat of direct sunlight area which is equal to mirror . 2. Output light spread by water bottle or defuser area should be same and then major heat . Compare both by convert into Jules

Thank you :)

C’est un arnaque, un attrape nigaud. Ça ne fonctionne juste pas. C’est une corde qui les fait danser…

Yes, not possible from the side to my knowledge

:)

Wow impressive ! I will look for this tomato application !

Check my personal information please

No, I hope to one day if I have time

Optical fiber (the good one) have really low optical losses, I don’t know if it will work or if it’s efficient …

Thank you, I hope your project will work