Visual appearance modulation for invisibility

Q.  Technology known as ‘visual appearance modulation’ is used in which of the following?
- Published on 25 Mar 16

a. Infrared Images
b. Thermal Imaging
c. Invisibility
d. Xray Vision

ANSWER: Invisibility
 
  • The technology is being used for developing invisibility cloaks.
  • Using a technology known as visual appearance modulation, the material they developed has one side that contains tiny light-sensitive cells that are sensitive to the colours of the environment.
  • Once colours are detected, electrical signals trigger the top layer to imitate those colours using heat-sensitive dyes, a process that takes place in as fast as two to three seconds.

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