Endoscopy cameras for medical purposes; Medical apparatus for use in endoscopy; Optical apparatus for medical endoscopy; Optical instruments for medical endoscopy; Electronic endoscopes for medical use; Electronic endoscopes for surgical use; Endoscopes; Endoscopes for diagnostic use; Endoscopes for medical use; Endoscopes for surgical use; Endoscopes for therapeutic use; Light sources for electronic endoscopes for medical purposes; Operating instruments for use with medical endoscopes; Operating instruments for use with surgical endoscopes; Rigid endoscopes