Ever since I read Harry Potter I wish I own an Invisibility Cloak. Harry just puts this cloak over him and becomes invisible and this no longer belongs to the fictional world alone. It has become a reality already. Thanks to the Tokyo University.
The scientists at the Tokyo University have used Optical Camauflage technology to make this Invisibility Cloak but with a slightly complicated arrangement. A person who wishes to be invisible wears a garment similar to a hooded raincoat and the other person has to see through the cloak which makes the first person invisible.
We still have to wait for the perfect invisibility Cloak to be made(like the one Harry Potter had).Complexities apart, you cant deny the fact that its a cool piece of technology.