How It Works
REM Detection and Dream Recognition
The mask discovers when you are dreaming through an IR diode coupled with a phototransistor placed your closed eyelids. The eye moves behind the eyelid varying the amount of IR light reflected back to the phototransistor.
Embedded LED lights flash only while you are dreaming helping you become conscious. The lights are strong enough to be seen through your closed eyelids and in your dream, but not strong enough to wake you up.