Abstract: A light projector (10) for projecting a beam of light (19), which comprises: a housing (16) containing a light source (40) and a projector lens (18), and a drive motor (42), and defining an aperture; and a main shaft (20) extending through the aperture. A flexible and resilient elastomeric coupling (30) links the main shaft (20) to the housing (16) at the aperture. The drive motor (42) is coupled by a drive mechanism (50) to the main shaft (20), so that activation of the drive motor (42) moves the orientation of the housing relative to the longitudinal axis of the main shaft (20). Consequently a light beam (19) from the projector (10) sweeps out a conical surface in space around that longitudinal axis.

Abstract: A light projector (10) for projecting a beam of light (19), which comprises: a housing (16) containing a light source (40) and a projector lens (18), and a drive motor (42), and defining an aperture; and a main shaft (20) extending through the aperture. A flexible and resilient elastomeric coupling (30) links the main shaft (20) to the housing (16) at the aperture. The drive motor (42) is coupled by a drive mechanism (50) to the main shaft (20), so that activation of the drive motor (42) moves the orientation of the housing relative to the longitudinal axis of the main shaft (20). Consequently a light beam (19) from the projector (10) sweeps out a conical surface in space around that longitudinal axis.

Abstract: An ROV comprising a topside, a fish and an umbilical cable for connecting the topside and the fish together. The fish is adapted to be powered by an onboard battery inductively coupled to the fish. The cable is of a fine diameter to reduce drag through the water. RF transmissions carry control and return signals to and from the fish and topside. The fish has two cameras. The front facing camera is located behind a dual layer flooded dome. A pan and tilt mechanism is fitted to one of the cameras and uses a pivotable gimbal frame driven by a lead nut moving along an arcuate bolt.