The present invention relates to an endoscopy device comprising several lightguides (1, 2, 3), each light guide comprising one or more optical fibres. The lightguides are coupled with a sweeping system (4) arranged to direct an excitationlight beam in alternation in one of the fibres of the guides from the proximal endof the guide comprising said one of the fibres. In this way, the proximal ends ofthe guides may make use of the same sweeping system, whereas the distal ends ofthe guides may be installed simultaneously in different zones of interest ofan object or animal (10) under study for an almost simultaneous observation ofthe zones of interest. The invention also relates to an endoscopy method usedin a device according to the invention. A device and a method according to the inventionmay be applied to quasi-simultaneous reflectance, fluorescence, multi-photonimaging of several areas of interest.
