Apple is working on a new type of ambient light sensors, according to a new patent published by the US Patent & Trademark Office. This new system will improve the display behaviour on iDevices, in bright environments.
Usually, tablets and phones rely on ambient light sensors, that can detect when a portable device is exposed to direct sunlight. When bright light is detected, the portable device is able to automatically increase the brightness level in order to ensure that the images shown on screen remain visible and they’re not obscured by bright light. In dark areas, the brightness level is lowered to save power.
Such a system is achieved through first and second silicon photosensors. Apple wants to improve the system, in order to detect multiple sources of light and even artificial light, such as fluorescent one, incandescent light, tungsten light or a mix of these. This will increase the accuracy of the lighting, depending on the situation.