• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Gemstone (1) with a star-shaped appearance, wherein the gemstone (1) has a crown (2) with a plurality of crown facets, and a first group (6) of a ridge (4) towards tapering crown facets an angle (a) of 22.5 ° ± 3 °, preferably 22.5 ° ± 2 ° to the Rondistenebene (E) and a second group (7) of crown facets, which adjoin the Rondiste (4) with its broad side, an angle (ß) of 34 ° ± 3 °, preferably 34 ° ± 2 ° to the Rondistenebene (E) and an arrangement with a gemstone.
    公开号:AT515136A1
    申请号:T888/2013
    申请日:2013-11-15
    公开日:2015-06-15
    发明作者:
    申请人:Swarovski D Kg；
    IPC主号:
    专利说明:

    The present invention relates to a gemstone with a star-shaped appearance with the features of the preamble of claim 1 and an arrangement with such a gemstone.
    From the state of the art gemstones cut to star shape are known.
    For this purpose, the material areas between the rays of the star must be removed from an example, 5-cornered basic shape of a stone.
    So it takes elaborate grinding technology to grind the often very small gems to the star shape.
    Furthermore, gems are known with so-called chaton. Such a gemstone is described for example in EP 2 505 096 A1.
    A gemstone with a chaton section has a crown, also called upper part, with a defined number of lateral facets (crown facets) and a flat board, as well as a pavilion, also called lower part, with a defined number of facets (pavilion facets) on. The opposite end of the chalkboard can be designed as a tip or as a rounded tip in the form of a so-called caliber.
    Between the upper and lower part of a so-called Rondiste (peripheral edge) can be arranged. The gemstone can be ground symmetrically or asymmetrically.
    Another important quantity for the subject invention is the light yield (" Light Return "). The light yield (" light return ") is a measure of how much light incident on the gemstone from a predefined, relatively wide solid angle range, in a relatively narrow (opening angle 3 °) directed solid angle range on the viewer substantially along the axis of symmetry of the stone falls back.
    The light output is based on countless internal light reflections. These light reflections are caused by the individual facets, which stand in special angular relationships characterizing the respective cut. ** * · ···· ···
    For the calculation of the luminous efficiency, reference is made to EP 2 505 096 A1. The gemstone according to EP 2 505 096 A1 has a particularly high luminous efficacy.
    As a contrast between light and dark appearing areas of the gemstone, the ratio of the light output in the lighter areas minus the light output in the darker areas, broken by the light output in the lighter areas understood. If you multiply this value by 100, you get the contrast in percent.
    Expressed as a formula, the following applies to calculate the contrast:
    Contrast = (Luminous efficiency in the lighter areas minus light output in the darker areas) / Luminous efficacy in the brighter areas.
    In the case of state-of-the-art gemstones, a uniform light yield ("light return") over the entire stone surface is sought. Gemstones according to the prior art therefore have no star-shaped appearance.
    It is an object of the present invention to produce a gemstone star-shaped appearance more economical than by generating a star-shaped outer contour.
    This object is achieved by a gemstone having the features of claim 1 and an arrangement having the features of claim 7.
    Characterized in that the gemstone has a crown with a plurality of crown facets, and a first group of tapered to a Rondiste crown facets an angle α of 22.5 ° ± 3 °, preferably 22.5 ° ± 2 ° to the Rondistenebene has and a second group of crown facets, which adjoin with their broad side of the Rondiste, an angle ß of 34 ° ± 3 °, preferably 34 ° ± 2 ° to the Rondistenebene, resulting solely by the so-achieved course of light intensity a star-shaped appearance of the gem without the removal of material required by the prior art. - W W WWW * · ··
    Advantageous embodiments of the invention are defined in the dependent claims. Frequently, gemstones have a pavilion arranged below the crown. It has been found that the effect described above for such stones can be enhanced even if special angles are selected for the pavilion facets. It has turned out to be particularly advantageous if it is provided that the gemstone has a pavilion with a multiplicity of pavilion facets, wherein a first group of facet pavilion facets tapering towards a rondist makes an angle of 43.5 ° ± 3 °, preferably 43 ° , 5 ° ± 2 ° to the Rondistine plane, and a second group of pavilion facets bordering the Rondiste with their broad side at an angle of 50 ° ± 3 °, preferably 50 ° ± 2 ° to the Rondistine plane.
    In principle, it is envisaged that all pavilion or crown facets belonging to one or the other group of facets tapering to the frieze or faceted to the frieze having facets with the aforementioned angular positions, but it is also conceivable that there are additional facets of other angular positions as long as this does not significantly affect the desired appearance.
    In a further preferred embodiment it can be provided that the gemstone has a pentagonal outline in plan view.
    Preferably, it can further be provided that the gemstone consists of a transparent to the visible spectrum of the light material and has a refractive index of 2.0 to 2.4.
    Particularly preferably, it can be provided that the gem consists of cubic zirconia ("cubic zirconia").
    In a further preferred embodiment it can be provided that the contrast of the luminous efficacy between the first group of tapered facets facing toward the ridge and the second group of facets tapering toward the middle, determined in each case at a radial from the longitudinal axis of the gemstone outwardly measured position of two-thirds of the radius of a circumference surrounding the outline of the gemstone in the respective bisector of each facet is at least 50%.
    If a socket is provided for the gem, then it is preferably provided that the claws of the socket, which serve to fix the gemstone, are arranged in the region of that group of facets which adjoin the rondis with their broad side. Due to the inventive design of the facets of the gemstone in the area of those facets appears darker, with its broad side adjacent to the Rondiste. By covering the darker appearing areas of the gem the star-shaped impression is enhanced.
    Further advantages of the invention will become apparent from the figures and the accompanying description of the figures. Showing:
    1 a to 1 g views of an embodiment of the invention from different directions,
    Fig. 2a to 2b are views of an arrangement of the gemstone of Fig. 1 with a socket
    Fi9 · 3 is a schematic representation for defining the position of
    Facet angle F Fig. 9-4 is a diagram for illustrating the light yield for a straight section through the gemstone according to Fig. 5 f'9- 3 is a representation for illustrating the position of the measurement line for the diagram of the luminous efficacy ("Light Return ") in Fig. 4 f, 9-6 is a diagram for illustrating the light output (" Light Return ") for a section through the gemstone along a circle of Fig. 7 Fig. 9-7 is a representation for illustrating the position of the measurement line for the diagram of the luminous efficiency ("light return") in FIG. 6 - - v * «· ·
    Fig. 8 is an illustration for illustrating the of
    Emerging light rays for the diagram of the luminous efficacy ("Light Return") ^ * 9- a photographic representation of the appearance of a gemstone according to the invention and ^ 'a photographic representation of the appearance of a
    Gem stone according to the state of the art.
    Fig. 1a shows an embodiment of a gemstone 1 according to the invention in a side view. You can see the crown 2, also called top part, the pavilion 3, also called lower part, the Rondiste 4 the panel 5. The Rondiste is that area between the crown and pavilion, where the stone has its largest cross-sectional dimension. Schematically, the Rondistenebene E is shown, that is the plane whose normal vector is parallel to the longitudinal axis L of the stone and in which the gemstone has its largest cross-sectional dimension.
    Fig. 1b shows a gemstone 1 according to the invention in a further side view.
    Fig. 1c shows a gemstone 1 according to the invention in a plan view of the crown 2. It can be seen two types of crown facets 6, 7. In this case border five Kronenfacetten 6 with its tip to the Rondiste. Another five crown facets 7 border with a broadside on the Rondiste 4.
    Fig. 1 d shows a gemstone 1 according to the invention in a further side view.
    Fig. 1e shows a gemstone 1 according to the invention in plan view of the pavilion 3. The pavilion 3 has two types of pavilion facets 8, 9.
    At the same time, the pavilion facets of group 8 are bounded by their lace to the rondist. Further pavilion facets of group 9 border with a broadside on the Rondiste 4. For the sake of clarity was omitted to provide all facets with reference numerals.
    1f shows a gemstone 1 according to the invention in a perspective view of the crown 2.
    Fig. 1g shows a gemstone 1 according to the invention in a further side view.
    Fig. 2a shows an arrangement of a gemstone 1 according to the invention and a socket 10 and shell 11 in cross section.
    Fig. 2b shows an arrangement of a gemstone 1 and a socket 10 according to the invention in plan view. The frame is designed so that the prongs 11 cover the darker areas of the gemstone 1 and so underline the impression of a star. For the sake of clarity, only 2 of the prongs are provided with reference numerals.
    Fig. 3 shows a schematic representation of a gemstone 1 according to the invention for defining the angular position of the facets to the Rondistenebene E. The angle of a facet to the Rondistenebene is thus measured between the projecting appearing facet and the Rondistenebene. The angles present in the figure do not have to correspond to the values according to the invention.
    Fig. 4 shows the course of the light output ("Light Return") along an imaginary section A-B by a gemstone, which is designed for comparison as a conventional gemstone or as inventive gemstone 1. The solid curve shows the course of the luminous efficacy for a conventionally cut gemstone, while the dashed curve represents the course of the luminous efficacy of a gemstone 1 according to the invention. It is clear that in the case of the gemstone 1 according to the invention, the amount of luminous efficacy in the edge regions is substantially smaller than in the case of a conventionally ground gemstone. In other words, in the gemstone according to the invention, the contrast between the luminous efficacy in the region of one of the rays of the star and in the region between two rays of the - · * ·· | · "
    Sterns larger than in the prior art. This results in the gemstone 1 of the invention the visual impression of a star.
    FIG. 5 shows the position L 'of the measuring line AB for the diagram of the luminous efficiency ("light return") in FIG. 4. The measuring line lies approximately at half the height of the triangle CDE, where the height between C and the base DE is meant is.
    6 shows the course of the light yield along an imaginary section E-F along a circle through a gem, which is designed for comparison as a conventional gemstone or as a gemstone 1 according to the invention. The solid curve shows the course of the luminous efficacy for a conventionally cut gemstone, while the dashed curve represents the course of the luminous efficacy of a gemstone 1 according to the invention. It becomes clear that in the case of the gemstone 1 according to the invention, the amount of light output in the regions of the facets tapering towards the center is substantially lower than in the regions of the facets tapering towards the rim 4. In the gemstone 1 according to the invention, the luminous efficiency varies azimuthally periodically, whereby the visual impression of a star is formed.
    In a state-of-the-art gemstone, on the other hand, the luminous efficacy along the imaginary section E-F does not show pronounced periodic changes, so that no such impression is created in the prior art gemstone.
    FIG. 7 shows the position L "of the measuring line E-F along a circle for the diagram of the luminous efficacy (" light return ") in FIG. 6.
    The measuring line E-F is located on a center circle with respect to the center on a measured from the inside outward position of about two-thirds of the radius of a circumference of the gemstone (1) surrounding the circumference.
    Fig. 8 is an illustration for illustrating light rays emerging from a gemstone for the light-return diagram in Figs. 4 and 6. - * ·· * ··
    9a shows a photographic representation of a gemstone 1 according to the invention. The darker areas between the symmetry axes can clearly be seen. This results in the gemstone 1 of the invention, the visual impression of a star.
    Fig. 9b shows a photographic representation of a gem stone according to the prior art, in which no visual impression of a star is formed.
    For the sake of completeness, it should be noted that for angles, a full angle corresponds to 360 °.
    Innsbruck, on November 14, 2013
    权利要求:
    Claims (8)
    [1]
    1. Gemstone with a star-shaped appearance, characterized in that the gemstone (1) has a crown (2) with a plurality of crown facets, and a first group (6) of a Rondiste (4) towards tapering crown facets Angle (a) of 22.5 ° ± 3 °, preferably 22.5 ° ± 2 ° to the Rondistenebene (E) and a second group (7) of crown facets, which adjoin with its broad side of the Rondiste (4), a Angle (ß) of 34 ° ± 3 °, preferably 34 ° ± 2 ° to the Rondistenebene (E).
    [2]
    2. gem stone according to claim 1, characterized in that the gemstone (1) has a pavilion (3) with a plurality of pavilion facets, wherein a first group (8) of a Rondiste (4) towards tapered Pavillonfacetten an angle (γ ) of 43.5 ° ± 3 °, preferably 43.5 ° ± 2 ° to the rondistine plane (E), and a second group (9) of pavilion facets adjacent to the rondis with a broadside, an angle (5) of 50 ° ± 3 °, preferably 50 ° ± 2 ° to the rondistine plane (E).
    [3]
    3. gemstone according to at least one of the preceding claims, characterized in that the gemstone (1) has a pentagonal outline in plan view.
    [4]
    4. gemstone according to at least one of the preceding claims, characterized in that the gemstone (1) consists of a transparent to the visible spectrum of the light material and has a refractive index of 2.0 to 2.4.
    [5]
    5. Gemstone according to at least one of the preceding claims, characterized in that the gemstone (1) consists of cubic zirconia ("cubic zirconia").
    [6]
    6. gemstone according to at least one of the preceding claims, characterized in that the contrast of the light output between the first group (6) from itself to the Rondiste (4) towards tapering facets and the second group (7) of tapering towards the center facets, determined in each case at a radially from the longitudinal axis of the gemstone (1) outwardly measured position of two-thirds of the radius surrounding the outline of the gem (1) surrounding the respective bisector of the respective facet at least 50%, preferably at least 70%, particularly preferably at least 80%.
    [7]
    7. arrangement comprising: - a gemstone, in particular according to at least one of the preceding claims, - a socket, with claws of the socket overlap the edge of the gemstone, characterized in that the prongs (11) shaped and preferably in the region of the second group ( 7) are arranged by crown facets, that the visible surface of the gemstone (1) is bounded by an alternating convex and concave edge line.
    [8]
    8. Arrangement according to claim 7, characterized in that the visible surface of the gemstone (1) forms the surface of a five-pointed star. Innsbruck, on November 14, 2013
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    同族专利:
    公开号 | 公开日
    EP3068254B1|2018-05-23|
    CN105744852B|2018-10-26|
    AT515136B1|2016-12-15|
    WO2015070266A3|2015-07-30|
    EP3068254A2|2016-09-21|
    CN105744852A|2016-07-06|
    US20160249714A1|2016-09-01|
    WO2015070266A2|2015-05-21|
    引用文献:
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    US5072549A|1986-09-22|1991-12-17|Harold Johnston|Method of cutting gemstones and product|
    DE19734036A1|1997-08-06|1999-02-11|Helmut Buerger|Process for determining a gemstone cut with high reflection, process for grinding a gemstone with high reflection and cut gemstone with high reflection|
    US20040055333A1|2002-09-23|2004-03-25|Smith Allen L.|Faceted circular cut diamond|
    JP2009100857A|2007-10-22|2009-05-14|Nidec Sankyo Corp|Personal adornment|
    US3788097A|1971-03-30|1974-01-29|Colorant Schmuckstein Gmbh Fa|Brilliant having plural rings of facets, each having an odd number of facets|
    USD375914S|1994-07-05|1996-11-26|Fancoldi, R.T.|Diamond|
    USD411133S|1998-09-01|1999-06-22|Noe Alvarado|Hexagon shaped diamond|
    US6430963B1|2000-08-30|2002-08-13|Simka Diamonds Corporation|Diamond cut|
    IL146079A|2001-10-19|2004-06-20|Michael Kedem|Rounded rectangular gemstone|
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    USD481327S1|2002-06-04|2003-10-28|Nelson Jewellery Arts Company Ltd.|Pentagonal cutting diamond|
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    JP2008054838A|2006-08-30|2008-03-13|Komiya:Kk|Diamond|
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    US8353181B2|2007-05-04|2013-01-15|Worldwide Diamond Trademarks Ltd.|Heart shaped diamond cut having hearts and arrows pattern|
    JP3138424U|2007-06-01|2008-01-10|ヴァーグ株式会社|72-sided proportion diamond|
    US20110016918A1|2008-01-09|2011-01-27|Hohoemi Brains, Inc.|Ornamental diamond having two-stage pavilion|
    US20120079853A1|2010-10-01|2012-04-05|Blasbichler Guenther|Gem with brilliant cut|
    AT12644U1|2011-03-07|2012-09-15|Swarovski D Kg|brilliant cut|
    US20130291589A1|2012-05-03|2013-11-07|Anthony Ritchie|Silicon Carbide Princess Cut Gemstone|
    US20160166021A1|2014-12-11|2016-06-16|Hasenfeld-Stein, Inc.|Round cut gemstone exhibiting excellent optical brilliance|USD884547S1|2017-09-21|2020-05-19|Festaria Holdings Co., Ltd.|Gem|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA888/2013A|AT515136B1|2013-11-15|2013-11-15|Gemstone with star-shaped appearance|ATA888/2013A| AT515136B1|2013-11-15|2013-11-15|Gemstone with star-shaped appearance|
    PCT/AT2014/000192| WO2015070266A2|2013-11-15|2014-10-27|Gem having a stellar appearance|
    CN201480062099.6A| CN105744852B|2013-11-15|2014-10-27|Jewel with star image and with the system of jewel|
    EP14809746.2A| EP3068254B1|2013-11-15|2014-10-27|Gem having a stellar appearance|
    US15/154,241| US20160249714A1|2013-11-15|2016-05-13|Gem having a stellar appearance|
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