Patent ID: 8507839
Filing Date: 2013-08-13
Classification: G02B,H01J,Y10T

Abstract:
1. An optical system comprising: an optical bench defining a mounting surface; an objective lens mounted to the optical bench; and an image intensifier tube including: (i) a housing defining an interior region and a mounting surface, and (ii) a photocathode bonded to one end of a glass faceplate, and another end of the glass faceplate defining a faceplate surface, wherein the photocathode is positioned within the interior region of the housing, and wherein the mounting surface of the housing resides on the same plane as the faceplate surface, wherein the mounting surface of the optical bench is mounted onto the mounting surface of the image intensifier tube housing such that the mounting surface of the optical bench resides on the same plane as the faceplate surface and the faceplate surface of the glass faceplate is the surface that is positioned closest to the objective lens.