LED LAMP PROVIDED WITH A BRIGHTNESS CONTROL DEVICE

A lamp comprising - a light source (300) comprising one or more LED-type diodes; - means (100, 110, 230) making it possible to control the luminosity and/or the geometry of said light beam of said light source in response to control information or signal; - a capture system associated with an optical system making it possible to generate an electrical signal representative of the reflected light intensity of the area illuminated by said light beam on an illuminated object; - a control unit (230) intended to generate said control information or signal from the information generated by said capture system. [0002] The lamp is characterized in that the capture system comprises a focal system having a variable field under the control of the control unit. Preferably, the capture system comprises at least two sensors equipped with fixed focal length or, alternatively, a single sensor may be combined with a single focal system that is electrically controllable.