I recently had to build an infrared close proximity ... sensors and mechanical switches in order to detect when an object has been dropped at a given location. The system works by emitting a pulsed ...

Smartphones, for example, can use an LED proximity sensor to determine if you're holding ... phone measures how long it takes that light to reflect back to the phone, a proxy for how close the ...

TAOS, the Leading Global Supplier of Integrated Light Sensors, Debuts Industry’s First Digital Color Sensors with On-Chip IR Filtering and Proximity Sensing Color Sensor ...

One example in a common device is the use of an LED proximity sensor in many smartphones. That sensor can tell if the device is next to your face and turn the screen off as a result. LEDs are also ...