A software application designed for the Android operating system leverages the device’s built-in camera sensor to measure illuminance levels. This tool functions as a simplified alternative to dedicated hardware devices used in photography, cinematography, and environmental monitoring. For example, a user can point their phone’s camera at a scene to obtain a reading of the light intensity, typically expressed in lux or foot-candles.
These mobile applications provide accessibility and convenience, allowing users to quickly assess lighting conditions without requiring specialized equipment. Historically, light measurement required expensive and bulky devices. The availability of these applications brings light measurement capabilities to a wider audience, facilitating tasks such as photography lighting setup, optimizing plant growth environments, and assessing workplace illumination compliance.