Systems and methods for calibrating an endoscopic optic system

A system for calibrating an endoscopic optical system, the system comprising:

• an endoscopic system comprising an endoscope and a camera head coupled to the endoscope, the endoscope defines a longitudinal central axis and a light post;
• a calibration assembly comprising:
• a lower housing defining a calibration surface;
• an upper housing defining a vessel and a tube extending away from the vessel, wherein the tube is integrally formed with the vessel of the upper housing, wherein the vessel and the lower housing together define an internal volume, and wherein the tube does not extend into the internal volume;
• a calibration surface defined on an inside surface of the vessel;
• a calibration target disposed on the calibration surface;
• an aperture defined through a wall of the vessel, and the endoscope telescoped through the tube and the aperture such that the longitudinal central axis intersects the calibration target;
• and
• an axial and rotational retention surface that extends radially outward from a distal end of the tube and is configured to hold a distal end of the endoscope a predetermined distance from the calibration target,
• wherein the calibration assembly is configured to hold the endoscope in a fixed rotational orientation relative to the calibration target.