Depth-surface imaging device for registering ultrasound images to each other and to surface images by using surface information

A multimodal imaging unit for a depth-surface imaging device which comprises

• an in-depth ultrasound imaging transceiver;
• an optically transparent acoustic deflector positioned at 45 degrees to an ultrasound beam emitted by the in-depth ultrasound imaging transceiver to direct an emitted ultrasound beam towards a skin region of interest and to direct a reflected ultrasound beam to the in-depth ultrasound imaging transceiver;
• an optical module having a light source positioned to direct through the optically transparent acoustic deflector an emitted optical beam to a skin area of the skin region of interest;
• an optical camera sensor positioned to receive through the optically transparent acoustic deflector a reflected optical beam from the skin area of the skin region of interest;
• an intermediary coupling medium in contact with said ultrasound imaging transceiver and said optically transparent acoustic deflector;
• and
• a cover hermetically enclosing said ultrasound imaging transceiver, said optically transparent acoustic deflector, and said intermediary coupling medium and defining an acoustically and optically transparent access port for said acoustic beams and said optical beams.