An endoscope apparatus includes an insertion section adapted to be inserted into a desired region. A distal end structure is fixed to the distal end of the insertion section. The structure has a support portion on which a solid-state image sensor is mounted to be movable in a direction parallel to a...http://www.google.co.uk/patents/US4643170?utm_source=gb-gplus-sharePatent US4643170 - Endoscope apparatus
