US Patent 10240898 Reflex sight with multiple aiming marks

A reflex sight with multiple aiming marks has a body having a forward end extending in forward direction and an opposed rearward end extending in a rearward direction, a first optical element having a first concave surface facing in the rearward direction, the first concave surface having a first focal point, a second optical element having a second concave surface facing in the rearward direction, the second concave surface having a second focal point, a first emitter proximate the first focal point and spaced apart from the second focal point, a second emitter proximate the second focal point and spaced apart from the first focal point, and the first optical element being forward of the second optical element. The first and second emitters may both be rearward of the first and second optical elements. The second emitter may be spaced apart rearwardly from the first emitter.