Abstract: A luminaire body for a surgical operation light with an annular reflector has at least two electric light bulbs, a first bulb of which with its socket is associated in normal operation with a given centered position (with respect to the reflector) in the stationary part of the luminaire body, while a second bulb with its socket is situated in a reserve position away from the centered position; in case of a failure of the first bulb the positions of the sockets of both bulbs are changed by an electromagnetically operated turning service such that the second bulb can be turned to the original centered position of the first bulb for reserve-bulb operation after the first bulb has been withdrawn from the centered position.

Abstract: A luminaire body for a surgical operation light with an annular reflector has at least two electric light bulbs (3, 4), a first bulb (3) of which with its socket is associated in normal operation with a given centered position (with respect to the reflector) in the stationary part of the luminaire body, while a second bulb (4) with its socket is situated in a reserve position away from the centered position; in case of a failure of the first bulb (3) the positions of the sockets (1, 5) of both bulbs (3, 4) are changed by an electromagnetically operated turning device (16) such that the second bulb (4) can be turned to the original centered position of the first bulb for reserve-bulb operation after the first bulb (3) has been withdrawn from the centered position.