Optical lens cloaking

[grahamp]

With all the spare hardware people seem to have around, this could be a fun party trick:

http://www.rochester.edu/newscenter...ects-across-continuous-range-of-angles-70592/

 

[snapguy]

invisible?

Is this about making things invisible? Well, somebody made your link invisible, at least on my computer.

 

[AgX]

There seems an erratic failure at Rochester University server.

Try another time. Interesting report.

 

[grahamp]

They got Slashdotted. Bound to have hammered their server for a while.

 

[AgX]

http://www.youtube.com/watch?v=oJb9RnAVDuE

 

[Truzi]

http://www.youtube.com/watch?v=oJb9RnAVDuE

That's a really cool one (though done with reflection ("mirrors")).

 

[ic-racer]

Poor-man's version: Anything smaller then the physical diameter of your aperture (when in front of the lens) can bee 'seen around' by the lens.

 

[AgX]

Yes Truzi,

The video I linked to is a "the old mirror trick". I realized that too late...

I thought maybe they used fresnel lenses. But their 4-lens cloaking system has the "fault" of the central part not being cloaking. In contrast to this show.