Method, endoscope, and endoscopic system enabling enhanced imaging corresponding to window flush

An endoscope comprising:

• a shaft;
• a light entrance surface at a distal end of the shaft;
• a rinsing fluid duct in the shaft conducting a rinsing fluid from the proximal end of the endoscope to the light entrance surface for rinsing the light entrance surface;
• at least one of a pressure sensor for the detection of a pressure or a change of pressure in the rinsing fluid duct and a flow sensor for the detection of a fluid flow or a change of fluid flow in the rinsing fluid duct and a user interface sensor for directly detecting a user input at a user interface, the user input requesting rinsing of the light entrance surface;
• a sensor signal output configured to provide a signal representing the pressure or the change of pressure detected by the pressure sensor or the flow or the change of flow detected by the flow sensor or the user input detected by the user interface sensor, respectively.

An endoscopic system comprising:

• an endoscope with a shaft, a light entrance surface at a distal end of the shaft and a rinsing fluid duct in the shaft for conducting a rinsing fluid from the proximal end of the endoscope to the light entrance surface for rinsing the light entrance surface;
• a light source for providing an illumination light for the endoscope;
• at least one of a pressure sensor for detection of a pressure or change of pressure of rinsing fluid and a flow sensor for detection of a flow or change of flow of rinsing fluid and a user interface sensor for detecting a user input at a user interface, the user input requesting rinsing of the light entrance surface;
• a controller coupled to the pressure or flow sensor or user interface sensor, respectively, and to the light source, for changing an illumination mode of the light source from a first illumination mode to a second illumination mode when a sensor signal from the pressure sensor or flow sensor or user input sensor, respectively, indicates a rinsing operation.