Posts Tagged ‘invisibility cloak’

An invisibility cloak close to home courtesy of HyperStealth Biotechnology Corp.

Monday, January 7th, 2013

H/T (hat tip) to My Science Academy and its early Jan. 2013 article titled 27 Science Fictions That Became Science Facts in 2012 for the information about an invisibility cloak that has been developed by HyperStealth Biotechnology Corp. based in Maple Ridge, BC, Canada.  Here’s more from the company’s Oct. 19, 2012 news release,

Once thought to be only a Science Fiction/Fantasy technology, Guy Cramer, President/CEO of Hyperstealth Biotechnology Corp., discusses the implications of militaries which can now become invisible with his light bending technology called “Quantum Stealth”.

Hyperstealth is a successful Canadian camouflage design company with over two million military issued uniforms and over 3000 vehicles and fighter jets using their patterns around the world.

Quantum Stealth is a material that renders the target completely invisible by bending light waves around the target. The material removes not only your visual, infrared (night vision) and thermal signatures but also the target’s shadow.

Two separate command groups within the U.S. Military and two separate Canadian Military groups as well as Federal Emergency Response Team (Counter Terrorism) have seen the actual material so they could verify that I was not just manipulating video or photo results; These groups now know that it works and does so without cameras, batteries, lights or mirrors…It is lightweight and quite inexpensive. Both the U.S. and Canadian military have confirmed that it also works against military IR scopes and Thermal Optics.

This  brief video interview of Guy Cramer highlights various company products including Quantum Stealth ,

Cramer has included a number of updates, corrections, and additions to his  company’s Oct. 19, 2012 news release (which you will see if you keep scrolling down past the original release) ,

Isn’t there a risk that someone else may figure this out or copy what you’ve done? Yes, but I’ve already developed a countermeasure for Quantum Stealth so we would be able to detect anyone else with something identical or similar to Quantum Stealth.

Do I care that people remain skeptical? Nope, the people that need to know that it works have seen it and verified it and their opinions are the only ones that matter.

Will Quantum Stealth be available for the general public or commercial market? Not in the near future unless the Military decided to release the technology and I don’t anticipate that will happen anytime soon.

Is there anything planned for the commercial market? I am working on a number of non-powered color changing camouflage materials for the commercial market which utilize different technologies than either Quantum Stealth or Smartcamo. Colors change with climate, seasons cause environmental colors to change and even the 24 hour day can cause a large color discrepancy between camouflage and the background as day becomes night. People want camouflage which can change with these variables.

Have you made camouflage obsolete? Not necessarily, standard camouflage should continue to have its place, however, on the front lines it might become your second choice behind Quantum Stealth if you’re Canadian, American or British and your group is authorized to use it.

Update: December 18, 2012

I, Guy Cramer, have conducted about 20 interviews on this subject, however, there are now over 5,000 worldwide news stories that have come out in the past 8 days. With the internet, one news group just plagiarizes a previous story and fact checking is out the window. Some of you may remember the game as a child where you whisper a phrase in the ear of the first person and they whisper the same phase to the next person…10 people later you ask the last person to say the phase that they just were whispered and the phase is often completely different.

Some inaccuracies have come up which need clarification – if you have read this whole page you know the photos are mock-ups to show the concept, we have never told the media that these are photos of the real technology and in fact we’ve asked them to mark the photos as mock-ups or explain it on T.V.- but doing so doesn’t sell the story, so most of the articles leave this key point out. I started the process of correcting the reporters with the first reports I could find that did not mention this correctly such as http://www.businessinsider.com/cnn-new-camoflague-technology-makes-troops-invisible-2012-12 (these two reporters never did correct it after I asked them to) but the story went viral. There is no way for me to get 5,000 news sources to mark the images as mockups that didn’t even bother to interview me in the first place. I have not been dishonest about this, the reporters have.

I’ve never been to the Pentagon and the Pentagon is not backing our Light Bending technology at this time, this inaccuracy came about from the Daily Mail article where they combined the information on this page with the CNN interview where the reported [sic] is a Pentagon correspondent – but the Daily Mail never interviewed me, their online story is one key article that caused the story to go viral. I have only claimed that two separate U.S. Military command groups have seen demonstrations of the material, this doesn’t mean the Pentagon was one of them. The Canadian Government only provided authorization 2 weeks ago to be able to move forward with the U.S. Military regarding this technology.

Canadian Foreign Affairs is involved in determining the potential restrictions and clearance in moving forward with the British Military and will not make a decision until at least the Spring of 2013. At their request, I did a presentation of the technology at British Military Headquarters in Bristol in 2011 as well as the SBS (Special Boat Service) in Poole accompanied by two former U.S. Navy SEALs, one being Bill Jarvis mentioned in an earlier update.

Some critics are claiming that our technology (if it works) must only work in one direction at one angle. I can tell you that we have demonstrated that it can work in 360 degrees meaning you will see what is on the other side of the target and some one at a different angle will see what is immediately behind the target from their vantage point.

This story is not new, the “Atlantic” magazine article published in July 2011 discussed the technology from a video I showed him and the same reporter was shown our actual Smartcamo (color changing material) and confirmed that technology really works. It is only recently that the media has become focused on light bending technology due to the CNN interview which was not our intended story with them but when a three hour interview with CNN is cut into 2 minutes, the focus of their story was on this and not on the ADS Inc./Guy Cramer US4CES Family of camouflage finalist with the U.S. Army camouflage improvement program, which is the initial story they were there for.

There was no biographical information (that I could find) for Cramer on the company website but there is this in an April 22, 2011 posting on the Tactical Gear Military Clothing News site,

Guy Cramer is the President/CEO of HyperStealth Biotechnology Corp. CCD (Camouflage, Concealment & Deception) Specialist, IT Analyst: Level 4, Inventor of the Passive Negative Ion Generator, World Expert on Air Ions as per NASA JPL. He has worked on projects with, NASA Headquarters, U.S. Marine Corps, U.S. Army, U.S. Navy, and Senator John Warner’s office while he was Chairman of the Armed Services Committee. Cramer also worked under the direct commission of King Abdullah II of Jordan. He is the former research assistant and grandson to Donald L. Hings, P.Eng, M.B.E. (Member of British Empire), C.M. (Order of Canada) inventor of the Walkie-Talkie prior to WWII. Cramer has designed over 9,000 camouflage patterns for over 34 countries and recently developed Smartcamo, a textile which can change color to match the surrounding environment.

It’s a shame there aren’t more technical details about Quantum Stealth as it would be interesting for someone to compare and contrast this technology with other light bending technologies (invisibility cloaks).

Huge jump forward to invisibility cloaking device

Friday, November 16th, 2012

This is pretty remarkable. Usually when researchers talk about invisibility cloaks, they’ve managed to cloak something that is measured at the nanoscale. Here they’ve (Fractal Antenna Systems Inc.) managed to cloak a person within a certain bandwidth,

The Nov. 16, 2012 news item on Azosensors provides more detail,

Fractal Antenna Systems, Inc. today disclosed that it has successfully rendered a man invisible. The firm’s new invisibility cloak hid a subject named Peter at microwaves over a wide bandwidth at high fidelity. This is the first time any large object has been rendered invisible and the first time a person has disappeared from view using invisibility cloak technology.

Invisibility cloaks differ from other types of stealth or camouflage by diverting waves around an object. The opposing side is visible but the object is not. They are unpowered and passively convey that view.

The heart of the invisibility cloak is a close-spaced resonator arrangement made from almost 10,000 fractal shapes. Such shapes are built from simple patterns that are scaled. The human-sized cloak was configured as a large hollow cylinder with the cloak surrounding it as a thin shell. Subject Peter hunkered down inside to become hidden from microwave view, and thus realized a dream of countless generations–the quest to be invisible.

There’s more at Azosensors including an image and a history of invisibility cloaks. You can also visit the Fractal Antenna Systems Inc. website.

University of Texas at Dallas lab demos cloaking device visible to naked eye

Wednesday, October 5th, 2011

Invisibility cloaks have been everywhere lately and I’ve been getting a little blasé about them but then I saw this Oct. 4, 2011 news item on physorg.com,

Scientists have created a working cloaking device that not only takes advantage of one of nature’s most bizarre phenomenon, but also boasts unique features; it has an ‘on and off’ switch and is best used underwater.

For the first time, I was able to see an invisibility cloak in action, here’s the video,

For the curious here’s how it works (from the Oct. 4, 2011 news release on the Institute of Physics website),

This novel design, presented today, Tuesday 4 September [Tuesday 4 October?], in IOP [Institute of Physics] Publishing’s journal Nanotechnology, makes use of sheets of carbon nanotubes (CNT) – one-molecule-thick sheets of carbon wrapped up into cylindrical tubes.

CNTs have such unique properties, such as having the density of air but the strength of steel, that they have been extensively studied and put forward for numerous applications; however it is their exceptional ability to conduct heat and transfer it to surrounding areas that makes them an ideal material to exploit the so-called “mirage effect”.

The most common example of a mirage is when an observer appears to see pools of water on the ground. This occurs because the air near the ground is a lot warmer than the air higher up, causing lights rays to bend upward towards the viewer’s eye rather than bounce off the surface.

This results in an image of the sky appearing on the ground which the viewer perceives as water actually reflecting the sky; the brain sees this as a more likely occurrence.

Through electrical stimulation, the transparent sheet of highly aligned CNTs can be easily heated to high temperatures. They then have the ability to transfer that heat to its surrounding areas, causing a steep temperature gradient. Just like a mirage, this steep temperature gradient causes the light rays to bend away from the object concealed behind the device, making it appear invisible.

With this method, it is more practical to demonstrate cloaking underwater as all of the apparatus can be contained in a petri dish. It is the ease with which the CNTs can be heated that gives the device its unique ‘on and off’ feature.

Congratulations to Dr. Ali Aliev (lead author) and the rest of the University of Texas at Dallas team!

ETA Oct. 5, 2011: I added the preposition ‘of’ to the title and I’m adding a comment about invisibility cloaks.

Comment: Most of the invisibility cloaks I’ve read about are at the nanoscale which means none of us outside a laboratory could possibly observe the cloak in action. Seeing this video demonstrating an invisibility cloak in the range of visible light and at a macroscale was a dream come true, so to speak.

Splitting light to make events invisible

Thursday, July 14th, 2011

It’s always about bending light so that an object becomes invisible when you hear about scientists working on invisibility cloaks. Dexter Johnson (Nanoclast blog on the IEEE [Institute of Electrical and Electronics Engineers] website) recently featured some of the newest work in this area in his July 7, 2011 posting about a graphene cloaking device (based on the concept of ‘mantle cloaking’) proposed by researchers at the University of Texas at Austin.

Ian Sample in his July 13, 2011 posting on The Guardian Science blogs describes an entirely different approach, one that focusses on cloaking events rather than objects. From Samples’s posting,

The theoretical prospect of a “space-time” cloak – or “history editor” – was raised by Martin McCall and Paul Kinsler at Imperial College in a paper published earlier this year. The physicists explained that when light passes through a material, such as a lens, the light waves slow down. But it is possible to make a lens that splits the light in two, so that half – say the shorter wavelengths – speed up, while the other half, the longer wavelengths, slow down. This opens a gap in the light in which an event can be hidden, because half the light arrives before it has happened, and the other half arrives after the event.

In their paper, McCall and Kinsler outline a scenario whereby a video camera would be unable to record a crime being committed because there was a means of splitting the light such that 1/2 of it reached the camera before the crime occurred and the other 1/2  reached the camera afterwards. Fascinating, non?

It seems researchers at Cornell University have developed a device that can in a rudimentary fashion cloak events (from Samples’s posting),

The latest device, which has been shown to work for the first time by Moti Fridman and Alexander Gaeta at Cornell University, goes beyond the more familiar invisibility cloak, which aims to hide objects from view, by making entire events invisible.

Fridman’s and Gaeta’s research is to be published in Nature magazine at some time in the future and I look forward to hearing more about how this ‘space/time invisibility cloak’ works and whether or not other scientists can replicate the effect.

One final comment, Samples mentioned a special July 2011 issue (freeish download)  of Physics World devoted to invisibility. Excerpted from Matin Durrani’s July 8, 2011 posting on the Physics World blog,

It is perhaps a little-known fact that Griffin – the main character in H G Wells’ classic novel The Invisible Man – was a physicist. In the 1897 book, Griffin explains how he quit medicine for physics and developed a technique that made himself invisible by reducing his body’s refractive index to match that of air.

While Wells’ novel is obviously a work of fiction, the quest for invisibility has made real progress in recent years – and is the inspiration for this month’s special issue of Physics World, which you can download for free via this link [they do  want your contact details].

Kicking off the issue is Sidney Perkowitz, who takes us on a whistle-stop tour of invisibility through the ages – from its appearance in Greek mythology to camouflaging tanks on the battlefield – before bringing us up to date with recent scientific developments.

While it’s not yet possible to hear more Fridman’s and Gaeta’s device until Nature publishes their research, Sample offers more details based on materials, Demonstration of temporal cloaking, the researchers submitted to the arvix database on Monday, July 11, 2011.

I wonder what would happen if you had both kinds of invisibility cloaks at work. It brings to mind a Zen koan (I’ve paraphrased it), If a tree falls in the forest and no one is there, does it make a sound?

Or in this case: If you can’t see the object (light bending cloak), and you never saw the event (temporal cloak), did it exist and did it happen?

http://physicsworld.com/cws/download/jul2011

Hiding a peppercorn with your invisibility cloak

Wednesday, January 26th, 2011

It’s the first time I’ve heard of an invisibility cloak that can hide something visible to the naked eye.  A peppercorn may not sound like much but compared to cloaked objects that are usually measured at the nanoscale (nano means one billionth of a metre), this is a huge step forward. What makes this discovery even more interesting is that it’s simple and inexpensive compared to the other systems used to achieve invisibility. From the Jan. 25, 2011 news item on Nanowerk,

Unlike the other attempts to produce invisibility by constructing synthetic layered materials, the new method uses an ordinary, common mineral called calcite — a crystalline form of calcium carbonate, the main ingredient in seashells. “Very often, the obvious solution is just sitting there,” says MIT mechanical-engineering professor George Barbastathis, one of the new report’s co-authors.

The work is being done by a team of researchers from the Singapore-MIT Alliance for Research & Technology (SMART). From the SMART website,

Established in 2007, the SMART Centre is MIT’s first research centre outside of Cambridge, MA and its largest international research endeavor. The Centre is also the first entity in the Campus for Research Excellence and Technological Enterprise (CREATE) currently being developed by NRF.

Here’s how they created an invisibility cloak,

In the experiment reported in this paper, the system works in a very carefully controlled setting: The object to be hidden (a metal wedge in the experiment, or anything smaller than it) is placed on a flat, horizontal mirror, and a layer of calcite crystal — made up of two pieces with opposite crystal orientations, glued together — is placed on top of it. When illuminated by visible light and viewed from a certain direction, the object under the calcite layer “disappears,” and the observer sees the scene as if there was nothing at all on top of the mirror.

The latest invisibility cloak

Wednesday, December 22nd, 2010

Fractal Antenna Systems Inc. has released a video which demonstrates an invisibility cloak. From the Dec. 20, 2010 news item on Nanowerk,

The video conclusively shows that invisibility science has taken a huge leap with fractal design. Fractals are geometric patterns that have complex structure built from scaled repetition of a simple pattern. Fractals make up the cloak and its ‘object’ layer, producing a wideband invisibility that slipstreams microwaves around obstacles. The other side appears with good fidelity, without the detectable presence of the obstacle. Although a proof-of-concept of an invisibility cloak was shown in 2006 at Duke University, such non-fractal efforts had limitations. The Duke cloak worked in one narrow band, had many more cloaking layers, possessed a discernable shadow, and required the obstacle to already be hiding behind a mirror. All of those obstacles have been solved using fractals, in grids called fractal metamaterial, as the firm’s cloak reveals.

I located the 2006 video from Duke University,

It’s Fractal Antenna System’s ability to project a wideband invisibility cloak that distinguishes this effort from Duke’s (from the news item),

Notes the firm’s CEO and chief inventor Nathan Cohen: “In 2008, Chinese researchers said it was impossible to make a wideband invisibility cloak. We not only did it, but reduced the number of cloak layers, and, most importantly, made a cloak you can see out of. That means a sensor, for example, can be made to disappear into the background over a wideband, but still be able to see what’s outside. These attributes are really the ‘holy grail’ of cloak designs, and strongly point towards a bright future for invisibility science.”

The fractal cloak works at microwaves; radio waves used by cell phones and wireless devices. The technology directly applies to infrared, and with technology advances in nanotechnology, can be made to make visual light invisibility cloaks, although Cohen cautions that it will be many years before visual light invisibility cloaks are perfected. “Other researchers are still hiding objects behind mirrors. What’s the point of a cloak if you are already hiding behind a mirror?” asked Cohen.

As best as I can tell, the objects that are being cloaked are not visible to the human eye as they are measurable at the nanoscale. Here’s the Fractal Antenna Systems video (from YouTube),

The narrator seems to have some an unfortunate vocal habit, he overmodulates so some parts are a bit ‘sing-song’.