The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2015
Filed:
Nov. 20, 2012
Lightsmyth Technologies Inc., Eugene, OR (US);
Thomas W. Mossberg, Eugene, OR (US);
Christoph M. Greiner, Eugene, OR (US);
Dmitri Iazikov, Eugene, OR (US);
Volonte Jewels LLC, Eugene, OR (US);
Abstract
An article comprising (i) a substantially flat substrate bearing a set of diffraction gratings, and (ii) a jewelry mounting secured to the substrate. The gratings occupy areas that correspond to a two-dimensional projection of a three-dimensional faceted gemstone. Sub-gratings are sized and positioned so that perceived sub-gratings images overlap. Sub-gratings within each set differs from adjacent sub-gratings with respect to grating wavevector magnitude, so that the overlapped perceived images result in an overall perceived color of sub-grating set. In one embodiment, two or more gratings comprise sub-grating sets having parallel wavevectors; each sub-grating set differs from at least one other with respect to grating wavevector direction. In another embodiment, one or more gratings comprise sub-grating sets having non-parallel wavevectors.