Low-reflection metal and glass components Length compensation system Eye piece Rod lenses Light cable connection Color coding for angle of view 3 RUDOLF Medical ZK 582 EN Rev. 10.2023 Endoscopes The visible difference in endoscopy Rigid endoscopes consist of a tube shaft containing several optical components. These so-called rod lenses are made of special high-quality sapphire glass and consist of several glued elements. The built-in lens also consists of various prisms and defines the direction and the angle of view of the endoscope. A specially calculated arrangement of the entire lens system ensures the best image quality. The illumination of the operating field is provided by the finest glass fibres, which are also built into the tube shaft of the endoscope. A glass cone, integrated in the so-called light guide connection, bundles the light, which is generated by the cold light source and which is transported via a light cable. Thust this glass cone ensures optimal viewing conditions in situ. To protect the inside of the optical system from dirt and moisture, RUDOLF endoscopes are sealed under vacuum conditions and closed with gold solder using a special laser welding technique. In daily use, this manufacturing process allows machine reprocessing and sterilisation in an autoclave at temperatures up to 134°C.
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