Abstract: A reflector for use in a reflex mode detection device, said reflector being positioned in alignment with a detector and including a reflective region for reflecting a light beam to send the light beam back towards the detector, a signalling interface configured to indicate a state of alignment of the reflective region of the reflector with respect to an emitter, a detector configured to detect the presence of the light beam against the reflector, interpretation circuitry configured to control the signalling interface to indicate the state of alignment, and a power supply having autonomous electric power and configured to supply electric power to the signalling interface and the interpretation circuitry.

Abstract: The invention relates to a reflector used in a reflex mode detection device, said reflector being intended to be positioned in alignment with a detector and comprising a reflective region (Z) for reflecting a light beam (F1) so as to send it back towards the detector (1). The reflector (2) is arranged to fulfil: a signalling function using a signalling interface (20), said signalling interface (20) being arranged to indicate a state of alignment of the reflective region (Z) of the reflector (2) with respect to the emitter, a detection function so as to detect the presence of the light beam against the reflector, an interpretation function using an interpretation unit (22), said interpretation unit (22) being arranged to operate on the signalling interface with the aim of indicating the state of alignment, a power supply function with autonomous electric power, so as to supply electric power to the signalling interface (20) and the interpretation unit (22).