Images, Screens & GamesInfrared
Your Camera Sees Your TV Remote
Point a remote at your phone's camera and see the invisible light
Seen through a phone camera, the tip of a TV remote blinks every time a button is pressed. Why can't your eyes see it?
You'll find out
- The light hiding past the color red
- How a blink can carry a command
- Why cameras see in the dark
Why it matters
Invisible light runs remotes, face unlock and night cameras. Knowing it's there explains a lot of everyday magic.
Play this lesson
Free to play in your browser or on iPhone