IMAGING UNIT FOR AN ENDOSCOPE, AND METHOD FOR PRODUCING AN IMAGING UNIT
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United States of America Patent
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Sep 19, 2017
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Mar 25, 2015
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Abstract
An imaging unit including: a guide tube having an inner lateral surface extending in a longitudinal direction of the guide tube, the inner lateral surface defining an inner chamber; a lens tube having an outer lateral surface extending in a longitudinal direction of the lens tube, the lens tube being at least sectionally accommodated within the inner chamber of the guide tube; and at least one optical element which is accommodated in the lens tube; wherein the lens tube comprises a plurality of bars disposed on the outer lateral surface, each of the plurality of bars interacting with a corresponding one of a plurality of grooves recessed in the inner lateral surface of the guide tube.
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