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Patent Agency Ranking
公开(公告)号：US20190337021A1
公开(公告)日：2019-11-07
申请号：US16337349
申请日：2017-09-28
Applicant: De Beers UK Ltd
Inventor： James Gordon Charters SMITH
Abstract: An apparatus for sorting gemstones from a batch of gemstones comprises one or more measurement locations, a conveyor comprising a plurality of discrete compartments for containing the gemstones, a delivery device configured to deliver individual gemstones from the batch of gemstones to individual compartments of the conveyor and a controller configured to synchronise a speed of the conveyor with an operation of the one or more measurement locations such that the measurements of the gemstones can be correlated with a location of the gemstones in their associated compartments. A method of sorting gemstones from a batch of gemstones is also disclosed.
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公开(公告)号：US20190003980A1
公开(公告)日：2019-01-03
申请号：US16107503
申请日：2018-08-21
Applicant: De Beers UK Ltd
Inventor： James Gordon Charters SMITH , Colin McGUINNESS , David FISHER
Abstract: A method of and an apparatus for providing an indicator for a diamond as to whether it is natural by testing for the presence or absence of one or more specific markers in the luminescence properties of the diamond, These markers are characterised by luminescence decay time and luminescence wavelength.
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公开(公告)号：US20180195970A1
公开(公告)日：2018-07-12
申请号：US15739740
申请日：2016-06-28
Applicant: De Beers UK Ltd
Inventor： James Gordon Charters SMITH , Colin McGUINNESS , David FISHER
Abstract: A method of and an apparatus for providing an indicator for a diamond as to whether it is natural by testing for the presence or absence of one or more specific markers in the luminescence properties of the diamond. These markers are characterised by luminescence decay time and luminescence wavelength.
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公开(公告)号：US20160103078A1
公开(公告)日：2016-04-14
申请号：US14974425
申请日：2015-12-18
Applicant: De Beers UK Ltd.
Inventor： James Gordon Charters SMITH
CPC classification number: G01N21/87 , G01N21/55 , G01N33/381 , G01N2201/06146 , G01N2201/0634
Abstract: A system is described for obtaining images of a gemstone, and performing quantitative analysis on the images to obtain measures of properties of the gemstone. The system comprises a support structure for supporting the gemstone at an observation position. An illumination structure is arranged to illuminate the gemstone. The illumination structure comprises a plurality of radially dispersed directional light sources directed towards the observation position, the support structure and illumination system being rotatable relative to one another around a rotation axis so that the gemstone can be illuminated by one or more of the directional light sources at each of a plurality of rotational positions, the axis of rotation being normal to a selected facet of the gemstone. An imaging device is directed towards the gemstone for obtaining images of the gemstone at each of the rotational positions, the imaging device having an imaging axis parallel to or coincident with the axis of rotation. An image processor is provided for identifying sparkle regions in the images corresponding to reflections from individual light sources by individual facets and providing a quantitative measure of the gemstone on the basis of properties of the sparkle regions.
Abstract translation: 描述了一种用于获得宝石图像的系统，并对图像进行定量分析以获得宝石特性的度量。 该系统包括用于在观察位置支撑宝石的支撑结构。 布置照明结构来照亮宝石。 照明结构包括指向观察位置的多个径向分散的定向光源，支撑结构和照明系统可围绕旋转轴线相对于彼此旋转，使得宝石能够被一个或多个定向光源 在多个旋转位置中的每一个处，所述旋转轴线垂直于所述宝石的选定小面。 成像装置被引向宝石，以在每个旋转位置获得宝石的图像，成像装置具有与旋转轴线平行或重合的成像轴。 提供一种图像处理器，用于识别对应于各个光源的各个光源的反射的图像中的闪耀区域，并且基于闪光区域的特性提供宝石的定量测量。
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公开(公告)号：US20160041106A1
公开(公告)日：2016-02-11
申请号：US14885507
申请日：2015-10-16
Applicant: De Beers UK Ltd
CPC classification number: G01N21/87 , G01N21/01 , G01N33/381
Abstract: An apparatus for viewing images of a gemstone is described. The apparatus comprises a support structure for supporting the gemstone at an observation position. An illumination structure comprises a plurality of directional light sources directed towards the observation position so as to illuminate the gemstone. The support structure and illumination structure are relatively rotatable relative to one another about a rotation axis. An imaging device is arranged to obtain images of the gemstone at the observation position at a variety of relative rotational positions between the illumination structure and support structure: the imaging device has an imaging axis passing through the observation position. The support structure is arranged so that the gemstone can be placed at the observation position in such a way that the normal to a selected facet of the gemstone is within a range of tilt angles from the rotation axis. The arrangement of directional light sources is such that, for any tilt angle within the range, at least one of the directional light sources will be specularly reflected from the selected facet into the imaging device for at least one rotational position of the support structure.
Abstract translation: 描述了一种用于观察宝石图像的装置。 该装置包括用于在观察位置支撑宝石的支撑结构。 照明结构包括指向观察位置的多个定向光源以照亮宝石。 支撑结构和照明结构相对于彼此围绕旋转轴线可相对旋转。 成像装置被布置成在照明结构和支撑结构之间的各种相对旋转位置处在观察位置处获得宝石的图像：成像装置具有穿过观察位置的成像轴。 支撑结构被布置成使得宝石能够被放置在观察位置，使得宝石的选定面的法线在距离旋转轴的倾斜角的范围内。 定向光源的布置使得对于该范围内的任何倾斜角度，至少一个定向光源将从所选择的小平面镜面反射到成像装置中用于支撑结构的至少一个旋转位置。
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