Patent ID: 6483647
Filing Date: 2002-11-19
Classification: G02B

Abstract:
Night vision device for observing an object by at least one receptor comprising:a low-light-level amplifier having an entry window for receiving low-level light emanated by the object and an exit window for presenting an amplified image of the object in a wavelength range, a lens being located along a first axis and focusing the low-level light to the entry window, a first reflective element being essentially reflective to the wavelength range and being located along a second axis leading to the receptor for supplying the amplified image to the receptor, wherein the first and the second axis are essentially parallel, a second reflective element being located within the beam path between the exit window and the first reflective element, in particular for producing an intermediate image, wherein the second reflective element is spherical, aspherical or toroidal, in particular concave towards the first reflective element.