Ambient Light Sensors can be used whenever a high resolution light sensor with a two-wire digital interface is required. Applications include street light control, security lighting, sunlight harvesting, machine vision, automotive instrumentation clusters.
Display management, or controlling the display brightness depending on the lighting environment, can benefit products such as handheld instruments, data loggers, notebooks, tablets, flat-panel televisions, cell phones, and digital cameras. Ambient Light Sensing offers up to 30% in energy saving - reducing power consumption, extending battery life and improving picture quality.
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TAOS Ambient Light Sensors, also called Light-to-Digital Converters, combine a broadband photodiode (350 - 1100 nm) with a visible light blocking photodiode in a single CMOS IC. With integrated analog-to-digital conversion circuitry, data is output via a serial interface using two standard protocols: SMBus and I2C. Light intensity in Lux (i.e. illuminance) can be easily calculated using the output from both photodiodes without the need of using an expensive optical filter.