Patent ID: 7742161

Claim:
A device for measuring the illumination of an aircraft landing beacon light bulb, said device having a sensor for measuring the illumination of the bulb and a measurement and comparison device for measuring and comparing the value of illumination of the bulb to at least one threshold, wherein the measurement sensor is locked onto a specific wavelength representative of the behavior of the bulb over time, said wavelength being the predominant illumination wavelength of the bulb according to the color temperature of the bulb, wherein the device comprises means for determining a stabilization time of said bulb in order to begin the measurement after the warm-up time of said bulb, wherein the measurement and comparison device is configured to measure the illumination of the bulb by comparing the measured value to an average stabilized value (E N ), wherein the at least one threshold is defined relative to the average stabilized value, and wherein the device includes an alarm that is triggered when the illumination value of the bulb passes above the at least one threshold.