The following are common lighting conditions to reference: Lighting conditionĪmbient light sensors come in two fundamental types: This enables the adaptive brightness algorithm to perform smooth screen brightness transitions. Granularity: To ensure the best experience the ALS should have a granularity of 1 lux when the ambient light is below 25 lux, and a granularity of 4% of the ambient light when it is above 25 lux.Indoor light typically ranges from 0 to 1000 lux. The ALS dynamic range for devices designed to be used indoors can be smaller. Sunlight can range from 0 to 10,000 lux, or more. The ambient light sensors mounted on devices designed to be used outdoors, such as a cell phone, should support outdoor lighting conditions. A low dynamic range light sensor limits the environments in which it can be used.
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