Patent ID: 6339500
Filing Date: 2002-01-15
Classification: G02B

Abstract:
A night vision monocular having an optical axis comprising:(a) a housing having a distal end and a proximal end; (b) an objective lens assembly having at least one objective lens, said objective lens assembly being engaged within said housing at said distal end; (c) an eyepiece lens assembly having at least one eyepiece lens, said eyepiece lens assembly being engaged within said housing at said proximal end; and (d) an image intensifying tube being engaged within said housing between said objective lens assembly and said eyepiece lens assembly and optically communicating with said objective lens assembly and said eyepiece lens assembly, such that light entering the night vision monocular via said objective lens assembly is intensified via said image intensifying tube and further such that said intensified light is focused via said eyepiece lens assembly onto an eye of a viewer, said image intensifying tube including a distal circumference and a proximal circumference, at least one of said distal circumference and said proximal circumference being fixed within said housing by a locking mechanism for preventing permanent longitudinal and permanent lateral displacements of said image intensifying tube within said housing; wherein at least one of said objective lens assembly and said eyepiece lens assembly includes at least one eccentrically rotatable eccentric element, whereas said objective lens assembly and said eyepiece lens assembly include, in combination, a minimum of two eccentrically rotatable eccentric elements, the optical axis of the night vision monocular is self collimated via said eccentrically rotatable eccentric elements within a predetermined image offset range, such that two night vision monoculars are combinable at random into an adjustment-free, stereoscopically operable, night vision binocular.