US Patent 9279975 Electronically adjustable long-range optical device

A long-range optical apparatus includes an optical unit defined by lenses and an eyepiece and has at least one manually operable adjusting device for adjusting an optical unit defined by the lenses. With the adjusting device, the optical unit can be adjusted relative to a mounting device. The adjusting device is mechanically coupled to at least one optical element or the mounting device. The optical apparatus has an electronic unit including a memory and the electronic unit performs an electronic function in dependence upon a setting parameter stored in the memory. The adjusting device is coupled with a position detection unit so that actuation of the adjusting device triggers an electrical signal of the position detection unit as a function of the position of the adjusting device. The electronic unit stores or changes a setting parameter in the memory in response to the electrical signal of the position detection unit.