Night vision system including field replaceable image intensifier tube

摘要

A night vision goggle system is provided having an image intensifier tube that may be installed or replaced without requiring realignment of the optics. The image intensifier tube is coupled to a first locating feature that is in a predetermined relationship to the optical center of the image intensifier tube. The system includes a second locating feature that interacts with the first locating feature to position the image intensifier tube in a predetermined relationship to an optical component of the night vision system.