Device for optical time-stamping, and related image-sensing system and optical time-stamping method

An optical time-stamping device, comprising:

• an optical instrument having a retina having a field of view and that produces images of said field of view on the retina,
• a high accuracy reference clock signal receiver configured for receiving a reference clock signal comprising information on a reference time,
• a lighting source at a distance from the retina of the optical instrument, the lighting source configured for emitting a light signal towards the retina of the optical instrument and in the field of view of the optical instrument, and
• control means comprising an internal clock, the control means connected to the reference clock signal receiver by a first connection and connected to the lighting source by a second connection, the control means configured for cyclically synchronizing their internal clock with the reference time and for controlling the lighting source for emitting the light signal in a synchronized way with the reference clock signal.