An scanning device for a television camera sealed in a casing. An intermediate
body is rotatable on a support about a first rotation axis. The camera is rotatable
on the intermediate body about a second rotation axis by rotatable coupling mechanisms
provided with respective internal housing seals within which are introduced and
disposed along a rotation axis successive respective deformable sections of connection
cable for the camera, pre-shaped partially wound in a helix with respective axis
parallel to the rotation axis to be elastically deformable to unwind from the helical
shape under camera rotation. The casing has a transparent element facing the camera
lens and a cleaning device therefor including a transparent film and a movement
mechanism to move the film across the transparent element as needed.