APPARATUS FOR IMAGING OBJECTS ON THE REMOTE SIDE OF A BARRIER USING RADIATION

摘要

Apparatus ( 1 ) for imaging an object ( 4 ) on the remote side of a barrier ( 6 ). The apparatus has source means ( 2 ) for scanning the object ( 4 ) through the barrier ( 6 ) with radiation and mask means ( 8 ) having at a least one radiation transparent area wherein the radiation from the source is masked thereby to project on to the object ( 4 ) at least one scanning beam of radiation. The apparatus ( 1 ) also has detector means ( 10 ) for detecting radiation reflected from any scanned point on the object ( 4 ) and image generation means for generating an image of the object ( 4 ) from the detected radiation.