Guys, this type of "cloaking" method isn't intended for a military application. This is more for projects: for instance, something like this could be used by a surgeon so that they would be able to see through their hands during a delicate operation or eliminate blind spots in vehicle mirrors.
actually as you moves away from lens object magnifies and at invisible point it magnifies so much that the centre of ring area is all you can see.which is empty.
Very cool experiment. I'd love to see demonstrations of different backgrounds though (eg: a line of trees/foliage; basically anything except a symetrical repeating pattern.)
Good point. With grid lines, one can see if there chromatic aberrations and it is easy to see if movement off the optical axis will distort your lines. It would work the same in foliage.
You would need some big lenses to fit a line of trees between the lenses. Also like they said the center if blocked will defeat the purpose it's only a ring around the outside that is invisible
I'd like to see the optical path. The light rays being focused have to go somewhere (around the cloaked object), so the invisible area I assume is outside of that focused path?
They said in the video that with this design shown in the video, the light goes through the center of the path. So a ring centered at the center of the path has to be left unblocked.
The best way to design a fully functional cloak is to use micro/nano cameras with a fabric outer shell which is in particular a screen. For instance x numbers of cameras on the back of a flexible fabric screen made like a jacket or sweater. the cameras is recording the back and projecting the image at the front. Do it.
This is cool. However what would we cloak with this technique? You'd need some some pretty huge lenses to cloak a building or a vehicle, and if cloaking a person would require a pretty elaborate setup. Also the biggest problem of course is that the object can't be placed near the center of the lens.
Good question. In reality, the best thing is to use a split-lens cloak or array of transverse lenses to hide things. I have actually considered invisible webbing.
John Howell Ooh that sounds pretty cool. Either way this is stuff is awesome. I guess there won't be much use for regular folks quite yet. Though it would be nice to be able to have at home cloaking so you could have your blindfolds up and not have to worry about privacy.
If you are a villain and want to build a liar inside an extinct volcano, and can produce massive lenses, you could just put buildings along the inside wall, or hide nukes there. New idea for a Bond movie?
Using the same principle with optical fibers you can fix the center shadow problem and more you can create full walls of lens and cloaking an elephant passing the light around it.
Two converging lenses in a unit magnification imaging system will invert your image, but four lenses corrects that. We actually showed in the paper arxiv.org/abs/1409.4705 that the minimum number of lenses to see these paraxial effects is 4. I hope that helps.
ww321 At 1:59 the thumb enters from the right but through the lens it blocks on the left. THERE IS NO CLOAK! In a lens the image reverses. They have figured out how to do this out of the lens.
The next step is: Make flexible continuous sheet of micro-lenses with identical focal lengths, and make them into a double-layered sandwich. IF you would make double semi-cylindrical shells out of this, then that would be cool to walk behind.
Old magicians have been using this technique of disappearance for ages. All you need is a hole and 2 or 3 lenses, this is the optic version of 2 cans and a string
If anyone can help me and knows the answer, pls help. If you were to take that concept and layer and space all the lenses the same way, but just made all the lenses cover the area of a hollow sphere, would u be able to observe whatever is in the invisibility area of that sphere. Sounds kinda confusing cause I cant fully explain through writing, but if anyone thinks they can help, but does not fully understand my question, pls, just respond to this comment asking me to explain whatever I mean.
got what you are saying , but actually this invisibility does work for the entire space between 2 lenses the volume you got for invisibility is like the region remaining when you remove a doublecone(vertex joined) from a cylinder (formed by the circumference of the lenses) with the common focus as vertex , so you get most ffecient invisibilty at region surrounding focus( at the focus , there is not cloaking) , so I think it might by possible , but for a smal volume( sphere) , btw great thinking
i actually tried this twice , but the equipment i used was very primitive , 4 simple lenses(10, 15 focal length , not achromatic) and no optical bench , I did get the cloaking (invisibility) effect , but there was a problem , the background directly behind appeared a bit magnified when looking through the lens , can it be due to some error like the distance between lenses( it took that by chalk markings) or if thee lenses were bit tilted vertically or horizontally(tried to make maximum accurate by putting a scale on lenses to check level) , how can i resolve the issue?
Someone suggested a rear view mirror for large trucks, rendering the trailer or long cargo space invisible. I can imagine a lot of uses. People here are thinking of this device as a way of tricking someone else, when in fact it is a great way of removing a visual obstacle without physically removing it.
Hmmm... I'd like to see this without a uniformed symmetrical pattern in the background. I suspect the image we see in the lens is the upside down image of the pattern. (2:00 makes me think this). If that's true, this isn't "cloaking" it's 1/2 of a 1:1 telescope.
How about you take something like a tank, put LCD screens on top of the armor and have strategically placed mini cameras placed around it show it just shows the image on the other side?
1969: Man walked on the moon and changed what was perceived possible in the world. 2014: Man revealed to the world nothing and was super excited about it.
No My Friend...this was what Once was...and what is...this is part of how the Natural Lensing System of Our Light and Energy work...let's Just say "Star Wars" wasn't Just a Movie...it was a Telling/Re-Telling of How Our SOL-ARC-SYSTEM System of Light and Energy work...and how Supposed "Planets" are Hidden and Unseen...its also the reason We Get Eclipses...😎
According to this story which covered the cloak, convex: www.businessinsider.com/how-to-make-a-rochester-invisibility-cloak-2014-9 I can confirm with the researcher if you like.
Man trying to Re-emulate past Tech from Civilisations that Knew ALL about Our Contained Space, Its Aethereal Energy Sytem and the Lenses,Flawless like a Diamond and shaped to Frequential/Sequential Perfection 😉.... Much Love and Peace 🤜🏼❤🤛🏿
So basically, this just focuses light at a focal point midway between two lenses. Then the light is inverted and seen normally through the lens closest to the observer. The "cloaked" object cannot move away from the focal point otherwise the "uncloaked" area gets bigger.
I tried building this using 20cm FL and 30cm FL convex lenses, but I still see an object if places in between the 3rd and 4th lens. Lens 1 and 2 (as well as 3 and 4) are separated by 50 cm, and the two pairs are separated by 200 cm (as was calculated by 2*f2(f1 + f2)/(f1 - f2). What am I doing wrong?
This is awesome and very academic. Though it's also extremelly expected by our actual understanding of optics and light behaviour. So.. on to the more complicated and not known cloacking teoretical systems!
Obviously, this technology is not ready for implementation in any arena besides the parlor. There are many comments doubting the efficacy of the cloaking system, yet it is clear from knowing the previous cloaking attempts, that an ideal system is closer than ever thanks to this iteration. This system improves upon previous models in the visible light range, it is continuous, and made cheaply. The next improvement would be to figure out how to compress the system itself, and at the same time, expand the region of cloaking.
This is fantastic stuff but I have to mention that what I see here is cloaking by the optical point of view and not by the subject. I cannot see relevance with this for any application but I am just a nobody:) could you please advise me on the possible extensions that could arise out your tests?
is this like a first year lab course experiment or are they claiming they discovered some basic principles of optics? this might be a nice demonstration for an open day but that's about it...
Anyone who's ever looks through an empty glass coke bottle is aware of a lens ability to curve light. I assume you've somewhat maximised that effect but how could this ever be practical cloaking?
Hello! We have a RUclips channel and would like to know if we could use some of your content from this video. Of course we'll give you a good credit for that. Please let me know if that is OK? Thank you!
The nodal point is never obstructed, which I think is a bit of cheating. When the student hold his palm spread out, puts a ruler, and a pen... all this is done without disturbing the nodal point which is on the optical axis passing through the center of the lens.
Is this really a new discovery or just something that has been known about since shortly after the discovery of optics? Seems hardly news worthy, maybe I am missing the magnitude, but can't you bend light around objects similarly with a series of mirrors? I understand that there is a ring zone and it's 3 dimensional, but through the use of mirrors or camera/ display can you not achieve a similar feat of viewing something that is on the other side of an object? It's not as if you can just put some lenses in this configuration on one side of a wall and some more on another and just see through the wall, but you can very easily put a wifi enabled camera in one room and a cheap smart phone with a viewing app in the other and do just that, if you wanna get fancy, use the accelerometer in the phone to control the viewing angle of the camera and tada you have a range of viewing angles. I understand that this is simpler in the sense that this is just glass, but again, I really feel the amount of hype this is receiving is way beyond warranted considering again, focal points of light and their manipulation are nothing new. (esp when you can see the guy's finger encroach on the "no go zone" as Stragemque said.)
I know this looks a bit underwhelming but give it some time. I'm already picturing a thin panel made up of digital micromirror devices (like DLP uses) to bend light around objects of much larger size.
it' stupid to use stupid as an argument when what you tried or hoped to say was incorrect. I'm a retired Federal Agent and that's the type of "convertible" civilian that you're obviously unfamiliar with.
Simple Instructions on HOW TO MAKE IT YOURSELF www.rochester.edu/newscenter/watch-rochester-cloak-uses-ordinary-lenses-to-hide-objects-across-continuous-range-of-angles-70592/
BTW - they should reference the story from Berkeley, I think, where they have discovered a chemical that bends the light - you can paint an object, your hand, a fabric, and anything inside it will be invisible. THAT is the 'Harry Potter Invisibility Cloak' (or "cloaking cloak", as a cloak is also a cape..). But this video shows a good sample of what's real: www.disclose.tv/action/viewvideo/179467/New_Military_Technology_2014_Total_Invisibility_Achieved/
Now the obvious thing to do is to run a small open conduit straight through one of the buildings on campus and use huge lenses in this configuration to create an "impossible window" through the building and [slightly offcentered] bystanders outside. isites.harvard.edu/fs/docs/icb.topic1507065.files/images/cloaking%20rays.jpg
a magnifier tilted ,while looking at an object ... also could make the same results , not cloaking just distorted from various angles to look as if invisible . how thick and curved is his lens , anything like the old style heavy glass coke-bottle eye glasses.
I usually try to give people fair acknowledgement for their finds & achievements, to not seem like I'm trying to be a know-it-all, but this is just simple optics which has been observed for decades. Telescopes, binoculars, rifle scopes will all do this at least partially. Take 2 simple 1-lense magnifying glasses & you can also see this affect if you play around with them a bit. I figured that out when I was 10 years old & trying to set things on fire, as I'm sure many kids did also. Sorry Rochester, but there's nothing new or groundbreaking in your "new" experiment. I don't even see how it would quite be patentable, but I'm sure they'll manage it.
The point is that the idea is simple. Your design actually wouldn't work as it would both distort the background and invert it, but you are on the right track. It actually uses four lenses. You do need to do the math to find the magic distances for the lenses, so that it doesn't distort your background when you move off your optical axis.
this is more of a stationary cloak isn't it? , but cloak with this on a moving target would be not accomplished would it? i guess this is the first step though
If person-A is approaching a scaled up version of this lens and Person-B is between the lenses, and is thus invisible to Person-A, could Person-B see Person-A?
it's a long way for this new invention for it to be use in a practical way or in military purposes. but I can see how they can make lots of money by using this technology to make the transparent smartphone come to life. with this lenses in addition to flexible screen. they can now hide the circuits and batteries and make an illusion of being transparent smartphones.
Reversed background, and you can't put the "clocked object" near the center of the lense, because it will fullfy all the lense... I think I saw my little cousin of 8 years old, playing with a glass and doing this "cloacking device" ..... what a shame university of rochester....
If you put two sets of these systems side by side, the center is now invisible, think square lenses rather than round and without mounts. There is a little more to this than you might think arxiv.org/abs/1409.4705.
With subtitles in english, I could understand everything that was said. Thank you.
From Santos BR.
Guys, this type of "cloaking" method isn't intended for a military application. This is more for projects: for instance, something like this could be used by a surgeon so that they would be able to see through their hands during a delicate operation or eliminate blind spots in vehicle mirrors.
actually as you moves away from lens object magnifies and at invisible point it magnifies so much that the centre of ring area is all you can see.which is empty.
thats simply a 1x telescope with very small area where the reticle could be possible.
Its amazing how you guys found new use of it,and rebranded it.
the paper is at arxiv.org/abs/1409.4705
Paraxial Ray Optics Cloaking
Joseph S. Choi, John C. Howell
Pretty neat. Small things always lead to bigger and better ideas.
Very cool experiment. I'd love to see demonstrations of different backgrounds though (eg: a line of trees/foliage; basically anything except a symetrical repeating pattern.)
Good point. With grid lines, one can see if there chromatic aberrations and it is easy to see if movement off the optical axis will distort your lines. It would work the same in foliage.
You would need some big lenses to fit a line of trees between the lenses. Also like they said the center if blocked will defeat the purpose it's only a ring around the outside that is invisible
@@S.A.D.i.S.T.I.C not between, behind, as a background
I love how the article references Harry Potter's invisibility cloak, while the Star Trek cloaking device is more relevant here.
I'd like to see the optical path. The light rays being focused have to go somewhere (around the cloaked object), so the invisible area I assume is outside of that focused path?
They said in the video that with this design shown in the video, the light goes through the center of the path. So a ring centered at the center of the path has to be left unblocked.
arxiv.org/abs/1409.4705
We did this in high school 20 years ago, it wasn't even mentionable or exciting, funnily enough it is more interesting for me today than back then.
The best way to design a fully functional cloak is to use micro/nano cameras with a fabric outer shell which is in particular a screen. For instance x numbers of cameras on the back of a flexible fabric screen made like a jacket or sweater. the cameras is recording the back and projecting the image at the front. Do it.
This is cool. However what would we cloak with this technique? You'd need some some pretty huge lenses to cloak a building or a vehicle, and if cloaking a person would require a pretty elaborate setup. Also the biggest problem of course is that the object can't be placed near the center of the lens.
Good question. In reality, the best thing is to use a split-lens cloak or array of transverse lenses to hide things. I have actually considered invisible webbing.
John Howell Ooh that sounds pretty cool. Either way this is stuff is awesome. I guess there won't be much use for regular folks quite yet. Though it would be nice to be able to have at home cloaking so you could have your blindfolds up and not have to worry about privacy.
If you are a villain and want to build a liar inside an extinct volcano, and can produce massive lenses, you could just put buildings along the inside wall, or hide nukes there. New idea for a Bond movie?
the dead angle in a car for example?
Using the same principle with optical fibers you can fix the center shadow problem and more you can create full walls of lens and cloaking an elephant passing the light around it.
It's not cloaking, It's creating blind spot.
They are also using a grid pattern in the background otherwise the background through the lens would show that it's reversed.
Two converging lenses in a unit magnification imaging system will invert your image, but four lenses corrects that. We actually showed in the paper arxiv.org/abs/1409.4705 that the minimum number of lenses to see these paraxial effects is 4. I hope that helps.
ww321 At 1:59 the thumb enters from the right but through the lens it blocks on the left. THERE IS NO CLOAK! In a lens the image reverses. They have figured out how to do this out of the lens.
The next step is: Make flexible continuous sheet of micro-lenses with identical focal lengths, and make them into a double-layered sandwich. IF you would make double semi-cylindrical shells out of this, then that would be cool to walk behind.
Lots of people giving these guys a hard time. I think its pretty cool. Good job :)
Would this be able to be used in conjunction with telescoping lenses?
Old magicians have been using this technique of disappearance for ages. All you need is a hole and 2 or 3 lenses, this is the optic version of 2 cans and a string
Lol so many condescending people on here expecting too much. This is a nice step forward for science, good job :)
2:10, that's the biggest oscilloscope I've ever seen.
ok then, when the predator's cloaking device will be available at walmart ?
What type of lenses are used ?(concave/convex)
Can i get a ray diagram of this ?
you can see a detailed video of The Action Lab
Very Cool Joe!
Waiting to get this in full wall sized
It's no Deathly Hallow but it's still damn impressive.
If anyone can help me and knows the answer, pls help. If you were to take that concept and layer and space all the lenses the same way, but just made all the lenses cover the area of a hollow sphere, would u be able to observe whatever is in the invisibility area of that sphere. Sounds kinda confusing cause I cant fully explain through writing, but if anyone thinks they can help, but does not fully understand my question, pls, just respond to this comment asking me to explain whatever I mean.
got what you are saying , but actually this invisibility does work for the entire space between 2 lenses the volume you got for invisibility is like the region remaining when you remove a doublecone(vertex joined) from a cylinder (formed by the circumference of the lenses) with the common focus as vertex , so you get most ffecient invisibilty at region surrounding focus( at the focus , there is not cloaking) , so I think it might by possible , but for a smal volume( sphere) , btw great thinking
Muito legal!!! Ideal para fazer efeitos especiais, filmes ou pegadinhas!!! Adorei!
How can you see the graph paper behind and not the hand in front?
i actually tried this twice , but the equipment i used was very primitive , 4 simple lenses(10, 15 focal length , not achromatic) and no optical bench , I did get the cloaking (invisibility) effect , but there was a problem , the background directly behind appeared a bit magnified when looking through the lens , can it be due to some error like the distance between lenses( it took that by chalk markings) or if thee lenses were bit tilted vertically or horizontally(tried to make maximum accurate by putting a scale on lenses to check level) , how can i resolve the issue?
Someone suggested a rear view mirror for large trucks, rendering the trailer or long cargo space invisible. I can imagine a lot of uses. People here are thinking of this device as a way of tricking someone else, when in fact it is a great way of removing a visual obstacle without physically removing it.
You can use fiber optics, with a three layer design, woven at a greater angle.
Hmmm... I'd like to see this without a uniformed symmetrical pattern in the background. I suspect the image we see in the lens is the upside down image of the pattern. (2:00 makes me think this). If that's true, this isn't "cloaking" it's 1/2 of a 1:1 telescope.
Does the object have to be at a certain distance between the two?
Hey,can anyone tell me what typr of lenses are being used???? Convex or Concave????
How about you take something like a tank, put LCD screens on top of the armor and have strategically placed mini cameras placed around it show it just shows the image on the other side?
1969: Man walked on the moon and changed what was perceived possible in the world.
2014: Man revealed to the world nothing and was super excited about it.
What kind of lenses? I need clear instructions
Cool video I must admit, so fascinating that people have finally managed to do something that was once considered "impossible"
No My Friend...this was what Once was...and what is...this is part of how the Natural Lensing System of Our Light and Energy work...let's Just say "Star Wars" wasn't Just a Movie...it was a Telling/Re-Telling of How Our SOL-ARC-SYSTEM System of Light and Energy work...and how Supposed "Planets" are Hidden and Unseen...its also the reason We Get Eclipses...😎
I wonder how hard it would be for a Las Vegas magician to use this to make his assistant disappear.
are these concave lens or convex lens
According to this story which covered the cloak, convex:
www.businessinsider.com/how-to-make-a-rochester-invisibility-cloak-2014-9
I can confirm with the researcher if you like.
So it is a neat consequence of "Multiple Stage" focusing of light at nicely calculated intervals?
Man trying to Re-emulate past Tech from Civilisations that Knew ALL about Our Contained Space, Its Aethereal Energy Sytem and the Lenses,Flawless like a Diamond and shaped to Frequential/Sequential Perfection 😉....
Much Love and Peace 🤜🏼❤🤛🏿
So basically, this just focuses light at a focal point midway between two lenses. Then the light is inverted and seen normally through the lens closest to the observer. The "cloaked" object cannot move away from the focal point otherwise the "uncloaked" area gets bigger.
I tried building this using 20cm FL and 30cm FL convex lenses, but I still see an object if places in between the 3rd and 4th lens. Lens 1 and 2 (as well as 3 and 4) are separated by 50 cm, and the two pairs are separated by 200 cm (as was calculated by 2*f2(f1 + f2)/(f1 - f2). What am I doing wrong?
1:59 gotcha!
This is awesome and very academic. Though it's also extremelly expected by our actual understanding of optics and light behaviour. So.. on to the more complicated and not known cloacking teoretical systems!
What lens used?
i think it's made of the inviable cloak, very cool.
Obviously, this technology is not ready for implementation in any arena besides the parlor. There are many comments doubting the efficacy of the cloaking system, yet it is clear from knowing the previous cloaking attempts, that an ideal system is closer than ever thanks to this iteration. This system improves upon previous models in the visible light range, it is continuous, and made cheaply. The next improvement would be to figure out how to compress the system itself, and at the same time, expand the region of cloaking.
This is fantastic stuff but I have to mention that what I see here is cloaking by the optical point of view and not by the subject. I cannot see relevance with this for any application but I am just a nobody:) could you please advise me on the possible extensions that could arise out your tests?
I have a hard time believing this hasn't been done before.. like 100 years ago :)
Rochester 's Cool
City of Rochester, NY - University of Rochester
I bet a illusionist came up with this a long time ago and kept the secret of it to his/her grave.
so you just have to convince your nemesis to wear goggles with the lenses.
is that the idea?...
I've done this when I was a kid using a pair of cheap magnifying lenses!
If I were to stand in the middle of the 4 lenses, what will I see if I look into the lenses from there?
+Naiuhz an upside down image
is this like a first year lab course experiment or are they claiming they discovered some basic principles of optics? this might be a nice demonstration for an open day but that's about it...
Anyone who's ever looks through an empty glass coke bottle is aware of a lens ability to curve light. I assume you've somewhat maximised that effect but how could this ever be practical cloaking?
Hello!
We have a RUclips channel and would like to know if we could use some of your content from this video.
Of course we'll give you a good credit for that.
Please let me know if that is OK? Thank you!
Love this how simple not more than $1,000 worth of equipment to prove this ...love it when people bring it forward!
They said it would scale well. What if you would create 4 huge lens and do the same method, could you make a car invisible?
It's invisibility using focal point illusion. One good use for this is hiding facilities from sattelite or aerial surveys.
Báh! Os caras da Universidade Rochester criam a invisibilidade!
The nodal point is never obstructed, which I think is a bit of cheating. When the student hold his palm spread out, puts a ruler, and a pen... all this is done without disturbing the nodal point which is on the optical axis passing through the center of the lens.
If you stop the play exactly at 106. you can see a skull on the inside left of the lens.
So what you're saying is I just have to carry four 6-foot lenses with me wherever I go, and I can be invisible? Eat your heart out, Harry Potter!
With just 4 of them
very interesting,whats next? could a material be made using nanomaterials that won't absorb light waves or I getting too far ahead of myself ?
this has nothing to do with the video. The next step for the video is to make a children's toy out of it or a marketing gimmick.
Is this really a new discovery or just something that has been known about since shortly after the discovery of optics? Seems hardly news worthy, maybe I am missing the magnitude, but can't you bend light around objects similarly with a series of mirrors? I understand that there is a ring zone and it's 3 dimensional, but through the use of mirrors or camera/ display can you not achieve a similar feat of viewing something that is on the other side of an object? It's not as if you can just put some lenses in this configuration on one side of a wall and some more on another and just see through the wall, but you can very easily put a wifi enabled camera in one room and a cheap smart phone with a viewing app in the other and do just that, if you wanna get fancy, use the accelerometer in the phone to control the viewing angle of the camera and tada you have a range of viewing angles. I understand that this is simpler in the sense that this is just glass, but again, I really feel the amount of hype this is receiving is way beyond warranted considering again, focal points of light and their manipulation are nothing new. (esp when you can see the guy's finger encroach on the "no go zone" as Stragemque said.)
I know this looks a bit underwhelming but give it some time. I'm already picturing a thin panel made up of digital micromirror devices (like DLP uses) to bend light around objects of much larger size.
the abilyty to make invisible war tanks and a.i drones only the military whil be able to see with special classes sounds insanely dangerous
Come up with complete invisibility from all angles and I'll buy one.
It will never ever be available to civilians, not ever not any chance no way. Think of the implications?
What makes you think a civilian is always a civilian?
Roy Niles Quit being stupid you know exactly what I meant.
it' stupid to use stupid as an argument when what you tried or hoped to say was incorrect. I'm a retired Federal Agent and that's the type of "convertible" civilian that you're obviously unfamiliar with.
Simple Instructions on HOW TO MAKE IT YOURSELF
www.rochester.edu/newscenter/watch-rochester-cloak-uses-ordinary-lenses-to-hide-objects-across-continuous-range-of-angles-70592/
BTW - they should reference the story from Berkeley, I think, where they have discovered a chemical that bends the light - you can paint an object, your hand, a fabric, and anything inside it will be invisible. THAT is the 'Harry Potter Invisibility Cloak' (or "cloaking cloak", as a cloak is also a cape..). But this video shows a good sample of what's real: www.disclose.tv/action/viewvideo/179467/New_Military_Technology_2014_Total_Invisibility_Achieved/
That paint-your-own-cloak was an April fool's joke.
Damn good one - I couldn't find the story when I searched again, so I know you're right. Thanks for pointing that out.
this only works if the object dont cover de center of the focal view of the lenses
Now the obvious thing to do is to run a small open conduit straight through one of the buildings on campus and use huge lenses in this configuration to create an "impossible window" through the building and [slightly offcentered] bystanders outside. isites.harvard.edu/fs/docs/icb.topic1507065.files/images/cloaking%20rays.jpg
a magnifier tilted ,while looking at an object ... also could make the same results , not cloaking just distorted from various angles to look as if invisible . how thick and curved is his lens , anything like the old style heavy glass coke-bottle eye glasses.
They now have this in our skies! I mean everywhere
if we somehow could get lenses on a blanket, wouldn't it be possible to create a invisible blanket like Harry Potter?
I usually try to give people fair acknowledgement for their finds & achievements, to not seem like I'm trying to be a know-it-all, but this is just simple optics which has been observed for decades. Telescopes, binoculars, rifle scopes will all do this at least partially. Take 2 simple 1-lense magnifying glasses & you can also see this affect if you play around with them a bit. I figured that out when I was 10 years old & trying to set things on fire, as I'm sure many kids did also.
Sorry Rochester, but there's nothing new or groundbreaking in your "new" experiment. I don't even see how it would quite be patentable, but I'm sure they'll manage it.
The point is that the idea is simple. Your design actually wouldn't work as it would both distort the background and invert it, but you are on the right track. It actually uses four lenses. You do need to do the math to find the magic distances for the lenses, so that it doesn't distort your background when you move off your optical axis.
this is more of a stationary cloak isn't it? , but cloak with this on a moving target would be not accomplished would it? i guess this is the first step though
If person-A is approaching a scaled up version of this lens and Person-B is between the lenses, and is thus invisible to Person-A, could Person-B see Person-A?
Used to do it as a child but thought this thing is as obvious as bending of an object in mediums of two different densities. Congratulations though!
Next step - do kind of air lens, making air with different density
it's a long way for this new invention for it to be use in a practical way or in military purposes. but I can see how they can make lots of money by using this technology to make the transparent smartphone come to life.
with this lenses in addition to flexible screen. they can now hide the circuits and batteries and make an illusion of being transparent smartphones.
nsa on a whole new level.
Reversed background, and you can't put the "clocked object" near the center of the lense, because it will fullfy all the lense... I think I saw my little cousin of 8 years old, playing with a glass and doing this "cloacking device" ..... what a shame university of rochester....
If you put two sets of these systems side by side, the center is now invisible, think square lenses rather than round and without mounts. There is a little more to this than you might think arxiv.org/abs/1409.4705.
I just want an invisible cloak i could wear.
this isn't a cloak this is a lens...
Hebrews 11:1 Now faith is the substance of things hoped for, the evidence of things not seen.
my next science project
Ryan Higa?
cloack? my ass... 0:10 I saw the goddamn finger
THATS AWSOME AND I WAS THE 1000 PERSON TO LIKE DA VIDEO i want a invisibility cloak!
Scientists are making world Hogwarts!
Harry Potter's Cloak of Invisibility is coming soon!
I wonder what John Titor has to say about this
So, I foresee snipers with cloaking devices.. scary >.
Most importantly, how is this going to help us in our future battles with the Klingons?
엣헴엣헴! 나무위키에서 순례중인 씹선비오~ 엣헴엣헴!
[미쿠쨩 다이스키~♥]
I did this with fish tanks when I was eight. It is just as practical now.