Ambient light sensor An ambient light sensor measures the amount of light in your surroundings and tweaks your phone's brightness based on that (if it's set to automatic brightness).

Ambient light sensors can reveal your device activity. How big a threat is it? For now, there's no reason for concern, but that could change in coming years.

Outdoor light motion sensors can add a healthy level of security to your home. Here's how to set them up.

Researchers based in the Bionanophotonic Systems Laboratory have successfully created a biosensor that creates a steady flow ...

Here's the run-down on back-side illuminated sensors (like those in the recently announced Sony cameras) including how they differ from more conventional designs and why we're still waiting for an ...

If you're a bicycle commuter, then you've probably been frustrated by traffic light sensors that can't detect your bike. Well, that's where the Veloloop comes in. It's designed to make those ...

A new study shows that light sensors in wearable devices do not work on people with obesity and darker skin tone. Light Sensors Don't Work on Obese and Dark Skinned Users ...