A Real Invisibility Shield | How Does It Work?
2024 ж. 28 Сәу.
3 231 786 Рет қаралды
In this video I explore the physics of an 'invisibility shield', otherwise known as a Lubor's Lens. You may have seen viral clips of this type of material attached to a riot shield, advertised for police and military applications to provide an effective (but not perfect) cloak in certain environments. This video explores how that technology works.
You can purchase your own Lubor's Lenses here (this is an affiliate link): ebay.to/2KGaCCn
It's thanks to viewers like you supporting me on Patreon that I'm able to continue making videos and strive to constantly improve them. Thank you so much for your support, and a special thanks to my top Patrons: Enzo Breda Lee & TheBackyardScientist!
/ nighthawkprojects
Thanks for watching!
-Ben
Hi everyone, if you're new to my channel my name is Ben. I read all of your comments and reply to as many as I can. While you're here you may be interested in some of my other videos, like this one where I re-invent a lost supermaterial 'Starlite': kzhead.info/sun/lNWLZMONpnR_rZE/bejne.html Or maybe this video where I speak with a retired aerospace engineer that has turned his expertise toward making incredible backyard rollercoasters: kzhead.info/sun/hterlqawjouugok/bejne.html How about running a gasoline engine on firewood? I've got a video on that too: kzhead.info/sun/aJZrcsWwhGKAoaM/bejne.html Thanks for stopping by! Leave me some comments. I'd love to hear from you.
NightHawkInLight The interaction with your subscribers is appreciated. A lot of channels don’t do that.
How is this not a close proximity spy drone. Basically invisible.
Question about solar light will they focus the Sun's light in a hard sharp straight line as opposed to a round circle I'd appreciate if you could check that out and tell me
I don't see the link on where to buy them
NightHawkInLight Just found u, love ur videos... reminds me of Smarter Every Day
“He’s using invisible technology, we can’t find him” Tilts head 90 degrees Ah there he is
Can you hide NWO MERKEL and co?
nah you'd have to tilt the hidden person ;)
Sorry but logically that won't make a difference. Its only if you tilt the shield that you will see the optically hidden object. Still a funny comment though.
@@joebidenofficialpotus Well, then it the illusion is defused, I guess. But I don't think the military would make a shield so confusing for the wielder though. There is almost always only one comfortable way to wield something. Say, you don't point a gun at yourself or hold it upside down. Not only that, but it will probably be in the shape of a rectangle to hide the entire body; not a square or a circle. As such, it will be almost always necessary to hold it vertically to feel stable. In any case, that would be hilarious all the same.
@@theeloquenteccentric8321 i mean they do have "this end towards enemy" stickers, pretty sure they'll figure out shields :D
My shower door's been doing pretty much the same for 30+ years
niiiiice
2_Face Unknown don’t you mean vertical?
@@kr00m 4
@@devinnoordenbos1922 horizontal is for a good impression
@@2FaceTube damn you, i can't stop laughing
invisibility has already been invented, we just can't see it
Agree
Witty
🤣
😂
Is magic ✌️👍✌️
Soldier: They cant see me, Im a blur Enemies: Sir! there's a huge ass Blur square moving from left to right.
Captain: that probably one of our dead soldier spirit
enemies mayor: naaay..its just your gay mind talking
Just let it go, it's only enemies who use the invisible shield!
kkkkkkkkkkkk
He's in passive mode
Can it hide all my problems in life?
Depends on the orientation of the lens.
Yes.
If you bury them deep enough you can hide them in anything.
Hey I just watched your most recent video, and the one you made with William Osman, good shit
@@SuiYo I was about to say that too 😂
So I decided to check out some of your older videos, and surprised to see that you’ve been making such great content for longer than 10 years. I think it’s incredible that still today you’re continuing to find inspiration for random (but interesting) things so frequently!
This dude looks 40 and 12 years old at the same time.
Your sentence reminded me of Tool, 46 and 2.
Best thing I've ever heard lol
😅👍🏻.
He reminds me of a villain on Bonanza or some random western sitcom.😂😂😂
😂🤣😂
Excellent as always. I could see a couple arguing, then one holds up a sheet and says, "Great, now I don't have to look at you!". 😂
I figured there was a reason there always seemed to be some sort of parallel lines in the background of those clips
Oh, that part was pretty obvious, the guy is fairly open about his "invisibility cloak" being a fresnel type lens and even includes some cross-sectional diagrams. What I *didn't* know was that they've been available for years. Which means he can't exactly be patenting it.
@@ClokworkGremlin *laughs in US patent office* He most likely could. Solely based on the concept of using it for military/police use cases. But having the patent hold in a court case, that's a different story. Just because you get something patent, doesn't mean it's valid, both in the practical or legal sense.
Bending the light !
Nostalgic inquisitor refracting
This lens used in toys too changing characters or image based on where you look or angle.
ibrahim s Yeah. They’re called lenticular lenses when used in 3D images: en.m.wikipedia.org/wiki/Lenticular_printing
surprised this wasnt mentioned as this is how i remember these lenses being used for almost 40 years, lol
Can you please spell it for me what are those lens called?
@Michael kilby You're going to have to back that up, since the patent for Lubor's lens trick specifies "providing a lenticular screen having a series of parallel lenticules".
@Michael kilby You made the claim that the Lubor's lens is "completely different" than a lenticular lens, that it "operates on more dimensions" and "bares no comparison". I've cited the original patent application, which describes a parallel lenticular lens array. Now, you say "it would be easy to rebuttal [sic] the citations" and yet, here we are... no citations, no links to drawings, or credible descriptions of just how the lubor's lens differs 'completely' from a lenticular lens. That is what I meant, when I said, "You're going to have to back that up".
When a grid's misaligned with another behind, that's a Moiré!
Well done
LOL, That was Great!
Don't get it
When the angle's just right and the spacing is tight, that's a Moiré!
@@RobertoOrtis It's a reference to Dean Martin's song "That's Amore"
This might sound stupid but in my head it works like the smudge tool on Photoshop when im trying to delete something from the image
This is the analog version
Not very well?
Step 1: resize to 1x1080 Step 2: resisze back to 1920x1080
Pretty good analogy. Essentially it is smearing everything horizontally. A good demonstration would be to have a wet painting with horizontal details and then wipe over it. All the original colour is there but only the horizontal details can be made out.
This just proves my theory that magic users in the past were just highly scientific people who figured out how to use the elements to their advantage
That's why they say. "Magic is just technology we don't understand"
Justin stop it please
Bro theres no such theory, and nothing new, search for some books, die hard magic its almost pure maths.
Justin Y. I’m sure you were the only one with this theory
just watch an anime called Dr Stone.
Love how clear and concise you are, thank you very much!
Knowing that the pliers are there, I can see the reddish hue of the handles. If I didn't know they were there, I'd probably be blown away! Always look forward to your videos my friend. Always worth the wait! God bless.
The REAL magic trick in this video is how he got the pliers to remain standing on the table after he removed the wooden support sticks. But seriously, nice video about the optics of a fresnel lens! I also learned that all these years I've been pronouncing fresnel wrong. (it's fray-NEL and not FREZ-nel)
Super glue has many uses
Or the pliers are super squared off on the tip not really impressive
Its called a nail
I've only seen this video by this creator and can already tell that he's a jewel of a human being. Very well done content, explained in a way that anyone can understand. Good jerb!
I have a few of these invisibility cards. It’s so cool to play with them and see with what items and in which situations they work the best
When I first saw the videos of the "magical invisibility shields", it didn't take long before I noticed they always used backgrounds with horizontal features... And I figured the "shield" only worked horizontally.
I was always curious how this illusion worked, thank you for sharing. These videos are always so well done and I absolutely love watching them!
You can also find these lenses in the back light path in LCD screens
Cool that's exactly what I was wondering. Time to go digging in clutter, think I got 3 of them. Play time with grandkids.
It makes it even more fascinating now that it’s been explained, it’s absolutely amazing
That was really cool. First time I heard of and saw this lens demonstrated. Thanks 👍
If you were my science teacher in high school I might have gone into science. Really enjoyed your presentation
Fascinating! Thank you for the explanations!
i always wanted a explanation for that
I've heard of this elsewhere but I found your explanation on point
Thanks buddy you always give a practical and real world approach and explanation on what you do and breakdown, keep up the amazing work
It's just a real life rectangle of content aware fill
Yeah true
Is magic
After seeing it on Daily dose of internet i was wondering how it works you explained it well 😊
i love how i have one of these for lenticular prints nearby and never knew of this trick. trying now it's working a charm!
Although I’ve only watched a dozen of your videos,your instructions,narration,and filming are clear,concise,and highly professional.You would be an asset to worldwide producers i.e. National Geographic,BBC,etc..
I highly recommend sending demos to any renowned company for potential employment.Yours remind me of the old “Wild America “series by Marty Stauffer,only with better video and narrative...
It's been too long. Super happy you're back
I feel this could have applications in the marine environment.
ok
Not when sonar exists. This only works for bending light to cameras and the human eye. Radar and sonar won’t be affected by this at all.
But why though? Contact is made with radar since the brink of WWII, no-one uses optical ID anymore...
The Philadelphia experiment
@@demodemo5146 that's not a thing, the story disproves itself.
Flipping awesome man!!! Thank you so much for sharing! I'm really looking into that!
I remember these from the late 90’s CD covers and promo posters. A photoshop app slices two images to give the illusion of motion or transition to something else when the lens is applied.
So impressive, that I bought two of them before the video was ended 😂 Thanks 👍
4 here. At 10 seconds or so. I want to cover something from all 4 sides.
Sounds interesting 😊
Thank you for pronouncing 'Fresnel' correctly. 👍
Don't you just love when someone says freznel?
Just a simple thank you for your explanation. It's nice to learn something new
Hi Ben. Newbie to your antics , just found you. . I have had several attempts at using the Ferrell lens with a led back light , by taking away the lcd screen (usually cracked making the tv useless) and using the left over parts to create what some people can’t understand as a 3D void affect , the sheets in using are regular tv sized. Also remove the leds from the tv as the voltage to run them are horrendous, and replace with 12v rgbw. They also make for an excellent daylight in dark corners of your home / hallway / staircase. And cheaper to run than a normal household bulb. Looking forward to more of your antics experiments funny thing 👍
It just seems like it's a massive horizontal blur, which tends to hide things because foreground elements like people tend to be vertical while landscape elements like hills and lakes tend to be horizontal.
Guy: *Demonstrates item* Guy: Now let me demonstrate item.
Thanks for sharing the knowledge man!! I appreciate it heaps! So good to see a guy whos not just trying to show off and 'mind-blown' everybody!
Great explanation! Thorough but concise.
I remember people using larger ones similar to these to put in front of the TV to get a 'bigger' picture, back in the 70's
And the ones with three coloured horizontal bands, blue top brown mid and green bottom type ones, to ' convert's a mono to a colour(ish) tv.... technology or what? Living the dream :0)
And our next act on Penn and Teller's Fool Us...
Hi Ben, you explained that so I could understand how that works. Not being a Physics person I had wondered about the material when I saw a guy making an invisibility shield in another video. But when you did yours with the pliers it worked better. So is smaller better in this respect.
Great demonstration and explanation. Thanks
I was once shown A great way to explain how these work. Lenticular lenses use a similar property as Fresnel lenses. A curved surface, glass or plastic, will bend light. Or more generally, light bends at the interface between to optical materials, Air and water, air and glass, air and plastic. This is how magnifying glasses, and camera lenses work. a typical camera lens is curved on one side and flat on the other. The bending occurs at the surface of the curve. any bulk between the flat part of the lens and the curved part is not necessary for the lensing effect. So if you slice a lens, in this case horizontally, into thin slices, you can remove all the material between the curved part and the flat part, then put them all the remaining parts back together. now you have a lens that has the same optical properties as the original bulky curved piece of glass/plastic, but in a nice, easy to manufacture, uniform width. This effect scales to very large, and very small, and also works with horizontal slices, vertical slices, circles (Fresnel), waves, random slices. This process can also be conducted on a prism, which could be thought of as a lens, only with flat surfaces. A prism bends light. Lenticular lenses can be thught of as the "flattening" of a prism in the same way a fresnel lens "flattens" a curved magnifying glass. This makes a lot of sense if you have a drawing of a magnifying lens from a side on view, act as an illustration.
Holy fk im not reading all that
Maybe a visual demonstration of that is good for explaining the phenomenon, but as text it just sounds like mumbo jumbo.
Lupo Grigio Brilliant explanation!
I read it, but the explanation itself he could have been better
MondoManDevout Not everything can be reduced to the simplicity of a colouring book.
Where can you find large versions of it? Like big enough to recreate the riot shield?
dismantle a 50'' tv, some have this sheet combined with a diffuser too
AWESOMEEEEE! Thanks for always sharing cool quality videos! They are great :)
Nice content dude, thank you for the information you gave
Alternate title: How to break the lighting engine | Glitch Showcase
I could see these used in office vitrines, you just have to put a striped pattern on the back wall and boom, everyone inside is invisible
Great explanation. Love your videos
Holy crap I haven't seen your videos in years I'm so glad to see you again
Problem is, you also can't see the enemy from behind it.
Yeah, that might be important. You could drill two eye-holes in it like the spies do with the newspaper in the lobby of the hotels.
Unless you have heat vision glasses to see them from there temperature
Mount a camera on the front, easy
It’s Arabia Fats!
Sure you can, you just need to use a different light ;)
You can get big versions of those Lubor's lenses out of LCD TVs, though don't expect to be able to rob a bank with them... :P
Who else can’t wait for each new video. Love your channel man.
Excellent explanation. Thanks!
I was hoping his only explanation would be “it’s just magic” but no.
any technology far enough advanced could be explained as magic, mean if you'd take someone from the 1400's to the modern day He'd exclaim witchcraft and magic from most of our modern comforts,
Come ooooon, it's very simple the explanation
Jfm
A Ludors lens even sounds like a magical D&D item +1 invisibility. 🤓
Mary Carrero Llovera Yeah we all seen Thor we know
The Moore Ray effect can also make you feel eel
I don't wanna feel any eel.
Thank you for the education on these lenses.
Great video. You are a great teacher. Thank you. Frsnel lens is a great simile. LUDOR lens
I am a photonics student, so I worked out how it worked in the first 5 seconds. xD
My father left to buy a ludor lens. I'm still waiting for him. Sometimes I hear him though.
Thanks Ben, your video was interesting and I enjoy it, Regards from Argentina
PHEW! I’m glad it was just an invisibility cloak thingie... For a second there I thought that you’d lost a perfectly good set of pliers! Another very thought inspiring topic! Thank you!
First, Amazing video as always. Does the effect require that the thing you want to dissapear to be at a specific or optimal distance? Also since it's a prism based thing, does the type of lighting affect it? Would it still function if the light source was a single color?
The further behind it you are the better. It should work the same under any lighting
@@Nighthawkinlight thank you for sharing.
further is better but also it takes the side views from much further away which can be another problem in certain applications.
Is this the same kind of tech that's used in that new ford "no trailer" backup cameras? Probably not, but I need to know how that works too!
ThirstyCartoon That’s GMC, not Ford.
I believe that's a separate camera that mounts to the trailer. ????????
@@ivanleterror9158 its an array of cameras. The input from each one is blended on the screen to appear as if its all one image. Watching the image you can tell where they blend.
Also used to create a type of changing image often used on toys or children's book covers. Held one way over a specially printed image, you see the first image, moved slightly and you see a second or even a 3rd image.
Great job! Love it!
I accidentally printed one of these on my 3d printer. I was printing with some clear PETG in the process of designing a lamp diffuser. With the 0.2mm lines running horizontally from each print layer, it made a single axis vertical diffuser. Nowhere near the same image quality, but thats fine for a diffuser.
I was looking for an excuse to buy some clear PETG, now I have one
And now you can't see the lamp?
There are two of them - one vertical, one horizontal, in most LCD screens.
In fact this is 2 polarizing filters and this is in all LCD, this is the way LCD works, the liquid crystals are between the filters and can "twist" the light to let it pass through.
@@raytracer9013 Yep. Took one apart once. It was fun playing with the two polarizing filters. Cellophane between the two produces interesting effects.
@@AndyCallaway you are looking at stress gradients in the plastic. Put a clear plastic fork between two polarizing sheets. The rainbow pattern makes the molded in stresses really stand out.
Eh, polarizing filters are not the same as this.
@@snorman1911 Understood. I know Ben was talking about the diffusers, but we went on to talk about all the different sheets of plastic inside an LCD screen.
I can feel the noise its making as hes rubbing the lens against each other. We used to have a tv like that and my family would also mess with me by scratching the tv with their nails. It literally sends shivers down my spine and i dont know why lol
Excellent presentation thanks.
The real trick is how the pliers stayed standing up after removing the wood dowels that was holding them up!
It’s literally clamped on a nail
@@malachifry3525 that type of plier doesn't lock. what your thinking is a nail is actually glue, from the grey color probably jb weld.
I want a genetically modified fish that has fernell lens for scales
That wouldn't do anything. Did you watch the video?
@@ewthmatth your imagination must be very unfun...
Glass fish
Transparent fish
there are actually some fish in the bottom of oceans that have translucent skin and some times you cannot see them...
That's amazing! I've never seen pliers stay up like that!
Think they on a bolt, balance?
Very professional video, nice job.
I know that could hide the object however some could see the blurry object in the distance
Who else watching this through a late 90’s tv and just see a bunch of lines? 😂
That's pretty impressive, how is your set up?
You must have an HDMI to avg converter. Got it.
Y’all are stupid or just stupid 🤒
@trandmain My my the low IQ zoomer has spoken, please further impress us with your critical thinking skills and masterful discernment. You probably have no clue what I am even talking about. I'm 27, and you are so stupid, you make a giraffe look smart.
Awesome. Thanks for the great explanation. :)
Ok so this vid seems like it is doing decent alot better than the rollercoaster one!!! I like to see this
The Romulans would like to have a word with you...
Oh come on, that treaty doesn't come into effect for another few hundred years. I'm grandfathered in
He'll yeah. Good one.
The Romulans have much better cloaking devices.
Touché my friend. 👍
USS Pegasus.....
Almost looks like horizontal and vertical polarization, which is how modern 3D movies work.
Hai Ben,I like your channel full of educational knowledge.Tyvm.
0:44 look how happy he looks he truly loves this things i mean i would too... but he is exited to another lvl...
Perfect material to hide my crying in public places
Last time I was this early we still hadn't seen your face.
They put these lenses on the backs of school buses I had growing up. It was awesome because the driver really could see all the way down the isle into the fresnel lens and it would show pretty much everything behind the bus. It was a spherical fresnel lens that produced a fisheye effect, not one of these fancy Lubors lenses. I can see how this material could be useful to see around corners in a variety of applications
Made Simple and well explained.
So that's what John Cena been using all this time.
I'm pretty sure all my clothes are made from this stuff. I can walk through a crowded room of girls and not a single one would notice me.
That's awesome! Keep it up! New subscriber here! ❤
0:44 Those eyebrows though! That got me good
I literally saw this thing in China when I was 11... Sometimes I feel like internet hypes everything up, no matter how old they are... And people go APESHIT over it... I really need to find something other than internet as my news source...
When you were 11. So- 40 years ago, or...?
Does it matter if the thing being hyped up _is actually good_ and not many people know about it? Not to mention that this was an educational video. I don't know what you're thinking but I feel bad for you if you use _KZhead_ as a news source. This is a place for content, and if you want controversial news, this isn't the place to look for it. However, educational videos are something KZhead excels at, given that you're looking for something specific. The other thing is that you shouldn't do is compare KZhead to the _Internet_ . That's like comparing a nail to the factory. Hope you learned something from this, and I wish you a good day!
Ha ha ha. I knew it was just a variation of a Fresnel lens.
Excellent and usefull job!... Thank you, Dear. :-) From Brussels, with Love....
What a nice guy. Thanks for the video.