ADJUSTING POWER TUBE Russian patent published in 2008 - IPC F41G1/38 G02B23/12 

FIELD: weapon.

SUBSTANCE: adjusting power tube consists of the triplet lens fixed along the strike of beams, target reticule, collecting component, two component pancratic inversion system and ocular, one component of which is glued of spreading and bi-convex lenses, and the other component is a single convergence lens, that is characterised by that the single diverging meniscus as a focusing component is placed between the object lens and target reticule. The single diverging meniscus is directed to an object by the protuberance and fixed so as to move along the optical axis, the target reticule is supplied with stadiometric scale, and the single spreading lens fixed before the glued component is placed in the ocular.

EFFECT: enhancement of aim accuracy, image quality and cleanness of the visible field vision for all distances of an object position from the infinity to the nearest point of the whole range of magnification change with the optimal technical characteristics and size.

1 dwg