Fujitsu has developed an iris tracking system . It unlocks a smartphone screen by scanning your eyes . And it can be used to log into Facebook , email or other sites . Technology creates iris pattern by projecting infrared light onto the screen . It takes an image of the iris pattern with the infrared light which is then cross - referenced each time the user looks at their phone .
Fujitsu has developed an iris authentication system . It unlocks a smartphone screen by scanning your eyes . And it can be used to log into Facebook , email or other sites . Technology recognises iris pattern by shining infrared light onto the eyes . It takes an image of the iris pattern with the infrared camera which is then cross-referenced each time the user looks at their phone .