| abstract |
The invention proposes a device 100 comprising: - a frame (10) designed to be worn by a user, - a system installed on the frame, comprising, for at least one given eye: * a light source (30i) intended to at least partially illuminate said eye, and * an image sensor (20i) intended to capture the light reflected by said eye, said image sensor being arranged spatially in an off-axis position relative to a reference axis corresponding to the line of sight of said eye when the frame is being worn by the user. The device 100 is such that the image sensor is arranged on the outer surface of the frame and has an optical axis turned towards the outside of the frame, and the installed system comprises a semi-reflective optical plate (40) arranged on the outer surface of the frame and, for a given eye, configured relative to the reference axis of said given eye to reflect, towards the optical axis of the image sensor, the light reflected by said given eye. |