The Lumen Maintenance Photocell (LMPC) is a sensor that’s attached to a wall that reads the amount of light in an area, and relays the information to a control unit that can make adjustments according ...

ALSs (ambient-light sensors) have been around for years, but they are now seeing increased use due to the success of smartphones, such as Apple’s iPhone. The iPhone uses an ALS to reduce power demands ...

This Circuit can compare the Light level in an area. It uses a PN Photodiode as the light sensor and IC CA3140 as voltage comparator. The circuit is ideal as the front end of burglar alarm circuits.

Scientists have discovered the function of a third type of light sensor in the eye -- not vision, but control of the body’s internal clock -- opening a new pathway for potential treatments of ...

To keep delicate and very small sensors within a future iPhone or Apple Watch clean and working perfectly, Apple is researching the use of heat and light to decompose contaminants. Apple has a ...