Patent ID: 8049959

Claim:
A riflescope for sighting, the riflescope comprising: a first objective lens; an ocular lens; an erector assembly positioned between the first objective lens and the ocular lens, the erector assembly comprising at least three spaced-apart optical elements, wherein each of at least two of the optical elements of the erector assembly is moveable relative to the other optical elements via operation of a zoom selector and the third optical element includes a negative lens located between the at least two moveable optical elements of the erector assembly and the ocular lens; a second objective lens spaced apart from the first objective lens and positioned between the first objective lens and the erector assembly; a reticle; an elevation adjusting mechanism for adjusting a vertical position of an image of a target viewed through the riflescope with respect to the reticule; and a windage adjusting mechanism for adjusting a horizontal position of an image of a target viewed through the riflescope with respect to the reticule; wherein the first objective lens is configured to produce an inverted image between the first objective lens and the erector assembly; wherein the erector assembly is configured to erect the inverted image; and wherein movement of at least two of the optical elements of the erector assembly relative to the other optical elements via operation of the zoom selector provides the riflescope with more than 4× zoom capability of a target viewed through the riflescope.