Faceted gemstone with enhanced color dispersion and diminished haze
AssigneeDiffraction Grating Services LLC
InventorDavid Benderly
Life of this patent
Estimating the term…
Abstract
Incident light enters a faceted gemstone and is routed along optical paths to exit the gemstone as emergent light. At least one diffraction grating is patterned on the gemstone in an asymmetrical manner relative to an axis of symmetry. The diffraction grating has a diffractive structure positioned on at least one facet for diffracting the light being routed along at least one of the optical paths to enhance color dispersion of the emergent light. The diffraction grating is the only diffraction grating to diffract the light being routed along the at least one optical path to diminish haze of the emergent light.
Claims18
A gemstone constituted of a light-transmissive material having a refractive index greater than air, an axis of symmetry, and a plurality of cut facets on which incident light entering the material is routed along optical paths through the material to exit the material as emergent light, the cut facets being symmetrically arranged adjacent one another about, and inclined relative to, the axis to reflect the light incident thereon by total internal reflection, the gemstone comprising:
- a diffraction grating patterned on the material in an asymmetrical manner relative to the axis of symmetry, the diffraction grating having a diffractive structure positioned on a plurality of adjacent ones of the cut facets for diffracting the light being routed along at least one of the optical paths to enhance color dispersion of the emergent light, and the diffraction grating being the only diffraction grating to diffract the light being routed along the at least one optical path to diminish haze of the emergent light.
A gemstone constituted of a light-transmissive material having a refractive index greater than air, an axis of symmetry, and a plurality of cut facets on which incident light entering the material is routed along optical paths through the material to exit the material as emergent light, the cut facets being symmetrically arranged about, and inclined relative to, the axis to reflect the light incident thereon by total internal reflection, the gemstone comprising:
- a plurality of diffraction gratings patterned on the material in an asymmetrical manner relative to the axis of symmetry, each diffraction grating having a diffractive structure positioned at the facets for diffracting the light being routed along each optical path to enhance color dispersion of the emergent light, each diffraction grating being the only diffraction grating to diffract the light being routed along each optical path to diminish haze of the emergent light.
A method of reducing haze in a gemstone constituted of a light-transmissive material having a refractive index greater than air, an axis of symmetry, and a plurality of out facets on which incident light entering the material is routed along optical paths through the material to exit the material as emergent light, the cut facets being symmetrically arranged about, and inclined relative to, the axis to reflect the light incident thereon by total internal reflection, the method comprising:
- patterning a plurality of diffraction gratings on the material in an asymmetrical manner relative to the axis of symmetry;
- positioning each diffraction grating with a diffractive structure at the facets for diffracting the light being routed along each optical path to enhance color dispersion of the emergent light;
- and
- arranging each diffraction grating as the only diffraction grating to diffract the light being routed along each optical path to diminish haze of the emergent light.
A gemstone constituted of a light-transmissive material having a refractive index greater than air, an axis of symmetry, and a plurality of cut facets on which incident light entering the material is routed along optical paths through the material to exit the material as emergent light, the gemstone comprising:
- a plurality of diffraction gratings patterned on the material in an asymmetrical manner relative to the axis of symmetry, each diffraction grating having a diffractive structure positioned at the facets for diffracting the light being routed along each optical path to enhance color dispersion of the emergent light, each diffraction grating being the only diffraction grating to diffract the light being routed along each optical path to diminish haze of the emergent light.
Dependencies are inferred from the claim text.