Patent ID: 6204961
Filing Date: 2001-03-20
Classification: F41G,G01S,G02B

Abstract:
An integrated day and night sighting system comprising:a daylight optical system having daylight optics for collecting and focusing visible light from an objective lens onto an eyepiece lens assembly in a daylight light path between said objective lens and said eyepiece lens assembly;a night light corrector lens mounted adjacent said daylight objective lens, said night correction lens including a pair of tilted lens elements to compensate for astigmatism;an image converter for night light use and being movably supported for movement into and out of the daylight light oath between a daylight position out of the light path and a night light position in the light path, said image converter being positioned for said eyepiece lens assembly to focus thereon when said image converter is in said light path;a night reticle display positioned between said image converter and said eyepiece lens assembly;a night light primary mirror positioned to reflect light from said night light corrector lens; anda night light secondary mirror positioned to receive light from said night primary objective mirror and to focus the light onto said image converter when said image converter is in a night light position, whereby an integrated night and day light optical system is provided in a compact packaging.