Patent ID: 7331114

Claim:
A compass instrument having structure for substantially simultaneously viewing a distant object and a compass heading therefore with great accuracy without the need for eye refocusing, said structure comprising the components of a distant object sighting first lens system having a first viewing axis, a separate compass indica sighting second lens system having a second viewing axis, and a compass having a casing with a magnetic disk rotatably mounted therein, said disk having peripheral heading indica, said components being mounted in top-down order on a housing with said axes and the center of said disk being in substantial symmetrical and vertical alignment on a vertical plane, the two viewing axes diverging from each other in said plane at an angle of from about 10 degrees to about 30 degrees, and said first and second lens systems having substantially the same focal point whereby the viewers eye lens does not have to reconfigure and the viewer can clearly see the distant object and the heading indica even though the up and down eye movement cycle may occur at millisecond speed.