It is natural for people to feel sleepy sometimes while on transit in a bus, office, seminar, lecture or in a conference. It could be embarrassing when it is noticed and may even attract sanctions in some high socially controlled environment.
- To hide their nap in lecture.
- Pretend to be active.
- Not to ruin speakers attention.
Covert glasses will be active when users would close their eyes more than 2 seconds. In the covert mode, glasses will display the eyes are still open and active.