Patent ID: 7978944

Claim:
A laser light cable comprising: an optical fiber; an inner metal cladding that surrounds the optical fiber; a wire cladding that surrounds the optical fiber and is electrically conductive in the longitudinal direction of the laser light cable, the wire cladding including a continuous layer of axially-adjacent wires formed from a wire item wrapped around the optical fiber, wherein the axially-adjacent wires of the wire cladding abut in a light-proof manner; an electric insulation cladding between the inner metal cladding and the wire cladding; an outer wire cladding that surrounds the wire cladding; an outer electric insulation cladding between the outer wire cladding and the wire cladding; an outer metal cladding that surrounds the outer wire cladding; an additional outer electric insulation cladding between the outer wire cladding and the outer metal cladding; a first electric safety circuit connected between the inner metal cladding and the wire cladding; and a second electric safety circuit connected between the inner metal cladding and the outer wire cladding; wherein one or more of the safety circuits detects damage to a component of the laser light cable.