Volumetric led alignment aid for sighting device

A sighting device to assist a shooter in aiming at a target, the sight device comprising:

• a frame housing coupled to a disk optical element, wherein the disk optical element comprises:
• a concave surface comprising an inner surface, an outer surface, and an outer edge;
• the outer edge of the concave surface comprising a curvature that is less than that of a curvature of the concave surface;
• a first coating disposed on the inner concave surface;
• a second coating disposed the outer edge of the concave surface;
• and
• an light source coupled to a mount located at a focal point of the disk optical element wherein the emission of light from the light source faces the disk optical element.

A method of manufacturing a sighting device to assist shooter in aiming at a target, the method comprising:

• creating a disk optical element with a concave surface by grinding an optical material, wherein the disk optical element comprises a ring;
• reducing a curvature of the ring to less than that of the original concave surface by further grinding the ring;
• coating the ring with a dielectric, film reflecting a narrow band of light wavelengths;
• housing the disk optical element within a frame body;
• and
• providing a light source located at a focal point of the lens wherein the emission of light from the light source faces the lens, and wherein a wavelength of the light matches the narrow band of light wavelength from the dielectric film.