DEVICE FOR NIGHT OBSERVATION Russian patent published in 1997 - IPC

FIELD: optical instrument engineering, applicable for visual observation of remote objects in the conditions of low illuminance. SUBSTANCE: the device uses an objective lens and an optoelectronic signal transducer located in alignment, erecting system made in the form of two lens groups 5,6, two mirrors 3,4 and eyepiece 7; the first lens group (5) of the erecting system and second lens group 6 are jointly installed between fixed mirrors 3,4, the first of which (3) is located past optoelectronic signal transducer 2, and the second (4) - before eyepiece 7, installed before eyepiece 7 is also a collecting lens; lens groups 5,6 and eyepiece 7 are located symmetrically, and each part of the erecting system consists of two components: a single collecting lens and an adhesive joint of two lenses. EFFECT: improved design. 2 cl, 2 dwg