Abstract: The device (1) for lighting an illumination field (2) includes a light source (5), adapted to illuminate the illumination field (2), a device for regulating the illuminance from the light source (7). The device for regulating the illuminance from the light source (7) is adapted to receive an actual luminance signal representing the actual luminance of the lighting field (2) and control the illuminance from the light source (5) as a function of the actual luminance signal and a luminance set point signal. The lighting device (1) comprises a device for determining the actual luminance (11) adapted to determine the actual luminance of the lighting field (2) and to create and transmit the actual luminance signal to the device for regulating the illumination from the light source (7). Application to devices for illuminating operating fields.

Abstract: This central pole (6) for supporting a main arm, in particular for lighting, extends along a central axis (X-X), has a fastening end (20) and a free end (22), and is provided with main and secondary tubular elements (24A, 24B) forming main and secondary housings for holding main and secondary fastening elements (44, 46). Each of these tubular elements (24A, 24B) defines a proximal end (26A, 26B) facing towards the fastening end (20) of the pole (6) and a distal end (28A, 28B). The pole is applicable to lighting distribution supports in operating theaters.