摘要:
Bei einem facettierten (2) transparenten Objekt (1), wie z.B. Dekor- oder Schmuckstein, mit einer Vorder- und einer Rückseite (3), wobei die Rückseite zumindest teilweise mit einer lichtreflektierenden Schicht versehen ist, und mit einer Lichtquelle (5) zur Beleuchtung des Objekts, weist das Objekt einen herzförmigen Schliff auf, wobei die Lichtquelle in der Symmetrieebene (4) des Objekts angeordnet ist.
摘要:
An identifiable mark on a portion of a polished facet of a surface of an article and being identifiable by an optical magnifying viewing device, said identifiable mark comprising a nano-structure formed by a two-dimensional or a three-dimensional lattice of a plurality of discrete nanometer sized recessed or protruded entities, wherein said entities are arranged within a predefined region of said polished facet in a predetermined arrangement in relation to each other and such that an outer interface surface between the facet of the article and air is formed and an inner interface surface between the facet of the article and air is formed. Said predetermined arrangement of said entities is non-uniform and non-periodic arrangement, and wherein said entities are sized and shaped so as to cause optical scattering upon reflection of incident light and the distance from the inner interface surface to the outer interface surface is greater than the amplitude of the non-marked portion of said polished face. Upon reflection of incident light having one or more predetermined wavelengths by said lattice at a predetermined angle of incidence to said lattice, interference due to scattering of light from said lattice is induced such that said reflected light has a variation in intensity providing one or more local maxima of one or more wavelengths. Said mark is identifiable by way of an optical magnifying viewing device inclined at a requisite viewing angle such that a local maxima is detected.
摘要:
The specification relates to a gemstone setting. The gemstone setting includes a gemstone, a mounting surface and a braze joint. The braze joint is formed from a reactive metallic alloy with the reactive metallic alloy adhering the gemstone to the mounting surface. The braze joint is substantially concealed from a direct line of sight from a top portion of the gemstone by preventing excessive alloy from getting outside a desired braze area.
摘要:
The present application discloses the details of a microwave plasma chemical vapor deposition process that uses Nitrogen and Diborane simultaneously in combination along with the Methane and Hydrogen gases to grow white color diamonds. The invention embodies using nitrogen to avoid inclusions and impurities in the CVD diamond samples and Diborane for the color enhancement during the growth of diamond. It is also found that heating of the so grown diamonds to 2000 C results in significant color enhancement due to the compensation of Nitrogen and Boron centers in the samples. The origin of the various colors in diamond is explained on the basis of the band diagram of CVD diamond.
摘要:
A fluorescence based ornamental device comprises a piece of jewelry with a plurality of fluorescent diamonds arranged in predetermined groups such that each group defines a corresponding Indicium that fluoresces when subjected to suitable excitation energy. A system for displaying an encoded message comprises a display unit housing, the jewelry, a support, and one or more excitation energy sources. A method for displaying an encoded message comprises the steps of categorizing fluorescence levels of diamonds, setting a plurality of fluorescent diamonds in a piece of jewelry so as to be arranged in predetermined groups such that each group defines a corresponding indicium, and irradiating one or more excitation energy sources onto the jewelry such that each group fluoresces to display corresponding indicium being normally unnoticeable and a message defined by a combination of the indicia.
摘要:
A method to apply nano-crystalline diamond onto a selected substrate, including preparing Nanodiamond slurry of nanodiamond particles dispersed in a medium. The medium may include a liquid or a sol-gel. The selected substrate is immersed in the Nanodiamond slurry for a predetermined period of time. Then the substrate is removed from the slurry. The substrate is then dried with a flow of inert gas. The substrate is left coated with a coating of the nanodiamond particles that are highly adherently held by van der Waals forces.
摘要:
Various embodiments described herein comprise a gemstone or other piece of jewelry, which incorporates one or more diffractive optical elements to enhance the fire displayed by the gemstone. In certain embodiments, the diffractive optical element comprises a diffraction grating etched on one or more facets of the gemstone.
摘要:
The present invention relates to a kit for visualising a cutting regime of a rough diamond comprising: (a) a solid, translucent substance into which three dimensional images are marked, said markings indicating: (i) the outer surface of the original rough diamond, (ii) optionally, the internal defects of the rough diamond, said markings indicating the position and shape of said defects with respect of the rough diamond,(iii) optionally, the outer surface of one or more cut diamonds, said markings indicating the position and shape of said cut diamonds with respect of the rough diamond, and (b) solid, physical representations of one or more diamonds indicated by the markings of item (iii), and/orsolid, physical representation of the rough diamond, corresponding to the markings of item (i), and/or one or more actual cut diamonds indicated by the markings of item (iii).The present invention further relates to a computer readable medium comprising data regarding the cut stone and the original rough diamond.
摘要:
An article of jewelry including a body having an outer major surface and a decorative pattern formed on the outer surface (10) of the body, and a method for forming the decorative pattern, the pattern including pairs of intersecting grooves (14) and an optically transparent synthetic decorative element (16) formed in a respective well created by the intersection of each pair of intersecting grooves.