Lens for sighting device
OwnerRicky C. Ferguson, Mary Ellen Fergusoninventors
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Abstract
A lens for use in a sighting device, the lens including anti-reflective coating on both primary planar sides, and having an uncoated light-accepting portion of a peripheral edge transmitting light shining thereon within the lens to fluoresce a substance within an indentation or a cavity burred into one side of the lens.
Claims20
A lens for a sighting device with the assistance of a light source, said lens comprising opposing forward and rearward planar sides, a peripheral edge and an optical center area, both sides having anti-reflective coating deposited thereon, one of said sides including an indentation receiving a substance made glowable by the light source.
A lens for a sighting device, in combination with a light source, said lens comprising opposing forward convex and rearward concave planar sides, a peripheral edge essentially perpendicular to said sides, and an optical center area at the geometric center of said sides, both sides having anti-reflective coating deposited thereon, said concave side including at said optical center a cavity having an opening narrower than the remainder and receiving a substance made glowable by said light source directing light onto said peripheral edge.
A lens in combination with a sighting device and a light source, said lens comprising opposing forward convex and rearward concave planar sides, a peripheral edge essentially perpendicular to said sides, and an optical center area at the geometric center of said sides, both sides having anti-reflective coating deposited thereon, said concave side including at said optical center a cavity having an opening narrower than the remainder of said cavity, receiving a fluorescent substance fluoresced by the light source directing light onto said peripheral edge.
Dependencies are inferred from the claim text.