Wacky Ideas from my Past – #1 The Invisibility Cloak

When I was a geeky teenager, I remember dreaming up these wild inventions that I though could revolutionize the world in some way.  Since that was 30 years ago, I thought it might be kind of fun to take stock of the likelihood of these ideas it today’s time.  Please try not to laugh.  Here was idea #1 – The Invisible Cloaking Device…

My thought was this – how cool would it be to be somewhere and put on a jacket and just become invisible.  Of course, the back pages of Popular Mechanics always had see-through glasses but of course, they were a gaff.  But I wondered if the cloaking concept could really work.  I didn’t see why not.  The way I figured it, if they could make transistors that were pretty much microscopic, and LED’s that were based on transistors, why not little cameras that were just as small?  All you had to do is put zillions of these cameras all over your cloak as well as zillions of LEDs.  But the LEDs had to be able to generate any color of light.  And each point of the cloak would have many cameras pointing in each direction, the signals of which were collected at a central computer.  The computer would figure out what part of the cloak was at the exact opposite position for each camera and each direction of view.  And so, that signal would get routed to the LED so as to generate the image that was the same as if you were looking through the cloak.  An engineering nightmare to be sure, especially in determining the position of every point of the coat.

So imagine how excited I was in 2006 when I first heard of experiments being done with cloaking devices.  Unfortunately, however, the technology is still woefully weak.  As shown in the figure below, you have to put a camera directly behind the subject and a combiner device between the viewer and the subject and it only works in one direction.  So, nobody is going to get fooled any time soon.

invisibility cloak

But still, the resulting effect is kind of cool.  See below…

invisibility cloak

So when will we have true invisibility?  I have seen projections of 10-20 years for single color with a cloak of a well-defined shape.  “Sometime this century” for a Harry Potter type invisible cloak.  I think that nanotech will facilitate the process by enabling microscopic devices that can image in all directions and are self aware of their position.  So, I say…

2030

3 Responses to Wacky Ideas from my Past – #1 The Invisibility Cloak

  1. Pingback: Wacky Ideas from my Past - #1 The Invisibility Cloak

  2. Geoff says:

    Dude. Just your same idea: ‘How can we calculate the exact opposite of anything? The ultimate cloak.’ So i fugured i would google search. Found this. Just thought i’d say your idea is pretty good. Gues my contribution would be to figure out how to create a math formula that will program the nano tech to be able to project from all angles. Pretty sure it can get done. Hard but doable.

  3. Geo says:

    Last night I thought: ‘How can we calculate the exact opposite of anything? If we did then we would be able to create ‘The ultimate cloak.’ So i fugured i would google search ‘calculate the opposite of anything for cloak’. Found your comment; blog. Just thought i’d say your idea is pretty good. Based on your thoughts, Gues my contribution would be to figure out how to create a math formula that will program the nano tech to be able to project from all angles. Pretty sure it can get done. Hard but doable. Hard part will be to make the cloak to allow the wearer flexability, i.e. bend an arm with out compressing the nano cameras together and damage them. Definately should be a suit though. Also, need to make the suit at least somewhat robust and tuff. I.e. Dont want to get hit by small rock and then the suit fails. Sorry…im rambling, just wanted to provide my two cents and to also say, you will see all happen at a point in time. Already working on the formula. Lots of variables to consider, and the nano tech isnt there yet, power storage and program wise.

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