Invisibility Cloak

MANUALLY SCIENTIFICALLY

Alinsonorin, Aldwin Jake

Avelino, Nichole Jonh

Tabar, Charmaine Marie

Torres, Cates

Trazo, Arman Ann

Unabia, Sheila Mae

Villasencio, Vina

Made possible

Ways to create -manual way

-scientific way

Discovery -recent

-scientist’s insights

Sources

Manual Way(just to mean literally

“invisible”)

Just to mean literally “invisible”

A digital video camera captures the scene behind the person wearing the cloak.

The computer processes the captured image or video so it will look realistic when it is projected.

The projector receives the enhanced image from the computer and shines it through the opening onto the combiner.

The silvered half of the mirror, bounces the projected image toward the person wearing the cloak.

The cloak acts like a movie screen, reflecting light directly back to the source.

Light rays bouncing off the cloak pass through the transparent part of the mirror and fall on the user's eyes.

The person wearing the cloak appears invisible because the background scene is being displayed onto the retro-reflective material.

It is connected with the idea of OPTICAL COMOUFLAGE.

It means to blend with the surroundings.

It is the method which allows an organism or object to remain indiscernible from the surrounding environment.

It would only provide invisibility in the visible portion of the spectrum.

Scientific way(deflecting microwaves)

Deflecting microwaves

By the use of metamaterials

Cloak made up of individual pieces of fiber glass arranged in parallel rows.

These hollow fibers are motels of photons –light checks in, but it never checks out

The arrangement of it enables the cloak to deflect or bend the light making it appear as nothing.

This is all about manipulating light.

This is known as transformation optics.

A phenomenon that compels some wavelengths of light to flow around an objects like water around a stone.

to develop possible future invisibility

It can deflect microwaves around a three-dimensional object

It contains bits of metal or other substances

Embedded in precise patterns

It can make the light bend in an opposite direction from normal paths

A manmade composites engineered on a nano scale with properties entirely different to anything found in nature.

Artificially engineered structures with optical properties that bend light in unnatural ways

Recent studies

As of year 2006, the cloak is now made of more than 10,000 individual pieces of fiberglass.

This new device can cloak much wider spectrum of waves and will scale far more easily to infrared and visible light.

For now the vanishing act takes place on a nanoscale, measured in billionths of a meter.

Scientists have created a paper-thin material that absorbs 99.995 percent of the light that hits it.

The invisibility cloak was minute, measuring 100 microns by 30 microns -- one micron being one-thousandth of a millimeter -- and the bump it hid was 10 times smaller.

Scientist’s insights

“There are a lot of materials that are very absorbing of light so that once the light gets in, very little is reflected. That is not the big issue. The big issue is persuading the light to go in the first place.”

-John Pendry-

(Physics Professor at Imperial College London)

One of the scientist concentrating on making an

invisibility cloak

"What you want to do is to surround yourself with a transparent material that is not only transparent but bends the light around you.“

-Doctor Ulf Leonhardt- (Physicist at Scotland's St. Andrews

University)

“It would be possible to make invisibility cloak on a large scale but technically, it's totally impossible with the knowledge we have now."

-Nicholas Stenger-(one of the scientists from

Karlsruhe Institute of Technology in Germany )

"The cloak made of metamaterial reduces both an object's reflection and its shadow, either of which would enable its detection.“

-David R. Smith-(Augustine Scholar and professor of

electrical and computer engineering at Duke)

One of the scientist concentrating on making an

invisibility cloak

AUGMENTED STEREOSCOPIC VISION IN SURGERY

COCKPIT FLOORS

TRANSPARENT REAR HATCH

STEALTH TECHNOLOGY

A lot of interesting thing have been done and already we have seen that anyone can be almost invisible with this technology.

Research work is going on and soon we will have even more astonishing results.

http://news.discovery.com/tech/invisibility-cloak-3d.html

http://science.howstuffworks.com/invisibility-cloak.htm

http://www.washingtonpost.com/wp-dyn/content/article/2008/02/19/AR2008021902617.html

http://www.sciencedaily.com/releases/2009/05/090501154143.htm

http://www.imperial.ac.uk/centenary/flash/timeline/images/people/small/pendry.jpg