Ambient light sensor

An ambient light sensor detects the level of surrounding light in the environment. It helps devices like smartphones and tablets adjust their screen brightness automatically for optimal visibility and comfort, conserving battery life. The sensor measures light intensity through a small photodetector, and the device's software uses this information to dynamically calibrate screen brightness. This technology enhances user experience by providing appropriate lighting conditions without manual adjustments, ensuring screens are neither too bright nor too dim, regardless of whether you're indoors or outdoors.