Abrégé

The present embodiments relate to methods and systems for analyzing and representing diamond appearance, and to an interactive, web-based encyclopedia of diamond cuts. The analytical methods involve the use of several unique techniques designed to capture and represent the nuances of different diamond cuts precisely. The graphical representations translate this complex gemological data into a format that is accessible and understandable to non-expert users. The diamond cut encyclopedia, generated by a unique enumeration algorithm, provides a comprehensive and detailed resource for both experts and enthusiasts alike. The present embodiments present a significant advancement in the field of gemology, offering increased precision in diamond analysis, user-friendly interfaces, and an efficient method for creating a comprehensive, interactive diamond cut encyclopedia.

Classes IPC  ?

• G06T 15/50 - Effets de lumière
• G06T 7/50 - Récupération de la profondeur ou de la forme
• G06T 7/60 - Analyse des attributs géométriques
• G06T 11/20 - Traçage à partir d'éléments de base, p. ex. de lignes ou de cercles
• G06T 13/20 - Animation tridimensionnelle [3D]
• G06T 15/06 - Lancer de rayon
• G06T 17/00 - Modélisation tridimensionnelle [3D] pour infographie

Abrégé

The present embodiments relate to systems and methods for generating all possible gemstone faceting arrangements. An apparatus can include a computer, a computerized file storage system for saving results, and a mechanism that generates faceting arrangements satisfying user-defined constraints. The apparatus can feature a program that enables loading gemstone faceting designs and can offer adjustable settings to control the specific geometric parameters. The program can also provide users with 3D models satisfying geometric constraints. Additionally, the apparatus may incorporate a ray-tracing engine to assess the light performance qualities of the virtual gemstone model. The present embodiments can also include methods for optimizing diamond cut using a genetic algorithm.

Classes IPC  ?

• B24B 51/00 - Systèmes pour la commande automatique d'une série d'opérations successives du meulage d'une pièce
• B24B 9/16 - Machines ou dispositifs pour meuler les bords ou les biseaux des pièces ou pour enlever des bavuresAccessoires à cet effet caractérisés par le fait qu'ils sont spécialement étudiés en fonction des propriétés de la matière propre aux objets à meuler de matière inorganique non métallique, p. ex. de la pierre, des céramiques, de la porcelaine des diamantsMachines ou dispositifs pour meuler les bords ou les biseaux des pièces ou pour enlever des bavuresAccessoires à cet effet caractérisés par le fait qu'ils sont spécialement étudiés en fonction des propriétés de la matière propre aux objets à meuler de matière inorganique non métallique, p. ex. de la pierre, des céramiques, de la porcelaine des pierres précieuses ou similairesSupports pour enchâsser les diamants
• B28D 5/00 - Travail mécanique des pierres fines, pierres précieuses, cristaux, p. ex. des matériaux pour semi-conducteursAppareillages ou dispositifs à cet effet

Abrégé

The present embodiments relate to methods and systems for analyzing and representing diamond appearance, and to an interactive, web-based encyclopedia of diamond cuts. The analytical methods involve the use of several unique techniques designed to capture and represent the nuances of different diamond cuts precisely. The graphical representations translate this complex gemological data into a format that is accessible and understandable to non-expert users. The diamond cut encyclopedia, generated by a unique enumeration algorithm, provides a comprehensive and detailed resource for both experts and enthusiasts alike. The present embodiments present a significant advancement in the field of gemology, offering increased precision in diamond analysis, user-friendly interfaces, and an efficient method for creating a comprehensive, interactive diamond cut encyclopedia.

Abrégé

The present embodiments relate to systems and methods for generating all possible gemstone faceting arrangements. An apparatus can include a computer, a computerized file storage system for saving results, and a mechanism that generates faceting arrangements satisfying user-defined constraints. The apparatus can feature a program that enables loading gemstone faceting designs and can offer adjustable settings to control the specific geometric parameters. The program can also provide users with 3D models satisfying geometric constraints. Additionally, the apparatus may incorporate a ray-tracing engine to assess the light performance qualities of the virtual gemstone model. The present embodiments can also include methods for optimizing diamond cut using a genetic algorithm.

Abrégé

Systems and methods here may be used for automated capturing and analyzing spectrometer data of multiple sample gemstones on a stage, including mapping digital camera image data of samples, applying a Raman Probe to a first sample gemstone under evaluation on the stage, receiving spectrometer data of the sample gemstone from the probe, automatically moving the stage to a second sample, using the image data, and analyzing the other samples.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G01J 3/28 - Étude du spectre
• G01N 21/65 - Diffusion de Raman

Abrégé

Systems and methods here may be used for a setup of fluorescence image capturing of a gemstone, such as a diamond placed on a flat stage. Some examples utilize a setup that both sends light and captures the image from the table side of the gemstone by passing ultraviolet (UV) light between 10 nm and 400 nm to the gemstone and capturing the excited fluorescence image for analysis through a dichroic beam splitter. In some examples, the cutoff is 300 nm. The dichroic beam splitter arrangement allows for the camera to focus on the same interface of the stage and gemstone over and over for ease of use and without moving, changing, or adjusting the equipment for different samples.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/64 - FluorescencePhosphorescence

Abrégé

Systems and methods here may be used for analyzing images of gemstones to automatically assign a haziness and/or fluorescence grade to the gemstone using contrast analysis on pixelated, digital images of the gemstones.

Classes IPC  ?

• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures
• G06T 7/13 - Détection de bords
• G06V 10/141 - Commande d’éclairage
• G06V 10/60 - Extraction de caractéristiques d’images ou de vidéos relative aux propriétés luminescentes, p. ex. utilisant un modèle de réflectance ou d’éclairage
• G06V 20/69 - Objets microscopiques, p. ex. cellules biologiques ou pièces cellulaires

Abrégé

Provided herein is an apparatus for assessing a fluorescence characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a gemstone to be assessed, one or more light source to provide uniform UV and non-UV illumination, an image capturing component, and a telecentric lens positioned to provide fluorescent images of the illuminated gemstone to the image capturing component. Also provided are methods of fluorescence analysis based on images collected using such an apparatus.

Classes IPC  ?

• G01N 21/64 - FluorescencePhosphorescence
• G01N 21/87 - Analyse des pierres précieuses
• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre

Abrégé

Provided herein is an apparatus for assessing a color characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a sample gemstone to be assessed, a daylight-approximating light source to provide uniform illumination to the gemstone, an image capturing component, and a telecentric lens positioned to provide an image of the illuminated gemstone to the image capturing component. Also provided are methods of color analysis based on images collected using such an apparatus.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/25 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes
• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre
• G06T 7/90 - Détermination de caractéristiques de couleur

Abrégé

Systems and methods here may be used for a setup of image capturing of a gemstone, such as a diamonds that are of high clarity grades. The present embodiments can provide methods to capture a diamond surface and internal clarity features from a diamond table and through and of other facets. Systems and methods may be used to convert gemstone dimension information into azimuth, slope, and distance information and adjust the motorized stage accordingly for surface imaging. Further, a calibration method can consider the offsets between design and actual system alignment. A calibration process can be used to compensate the offsets. Further, an additional conversion can be derived to compensate the offset caused by the geometry of the gemstone. The methods can automatically capture surface reflection images on facets of the gemstone and internal features taken through facets of the gemstone.

Classes IPC  ?

• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures
• G01N 21/958 - Inspection de matériaux transparents
• G06T 7/00 - Analyse d'image
• H04N 23/95 - Systèmes de photographie numérique, p. ex. systèmes d'imagerie par champ lumineux

Abrégé

Systems and methods here may be used for a setup of image capturing of a gemstone, such as a diamonds that are of high clarity grades. The present embodiments can provide methods to capture a diamond surface and internal clarity features from a diamond table and through and of other facets. Systems and methods may be used to convert gemstone dimension information into azimuth, slope, and distance information and adjust the motorized stage accordingly for surface imaging. Further, a calibration method can consider the offsets between design and actual system alignment. A calibration process can be used to compensate the offsets. Further, an additional conversion can be derived to compensate the offset caused by the geometry of the gemstone. The methods can automatically capture surface reflection images on facets of the gemstone and internal features taken through facets of the gemstone.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures
• G06T 7/00 - Analyse d'image
• G01N 21/25 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes
• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre
• G01N 21/55 - Réflexion spéculaire

Abrégé

Systems and methods here may be used for capturing and analyzing spectrometer data of multiple sample gemstones on a stage, including mapping digital camera image data of samples, for both reflective and transmission modes.

Classes IPC  ?

• G01N 21/33 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p. ex. spectrométrie d'absorption atomique en utilisant la lumière ultraviolette
• G01N 21/64 - FluorescencePhosphorescence
• G01N 21/87 - Analyse des pierres précieuses

Abrégé

A gem imaging system includes a stage having a platform configured to hold an object. The system further includes a light source configured to illuminate the object. The system further includes a housing configured to at least partially enclose the object. The housing is configured to position a mobile device such that a camera lens of the mobile device is aligned with the object.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• H04N 23/56 - Caméras ou modules de caméras comprenant des capteurs d'images électroniquesLeur commande munis de moyens d'éclairage
• H04N 23/55 - Pièces optiques spécialement adaptées aux capteurs d'images électroniquesLeur montage
• G06T 7/00 - Analyse d'image

Abrégé

A method and system for generating a clarity grading look-up table includes collecting actual inclusion parameter data for a plurality of gems, where the actual inclusion parameter data includes an actual clarity grade and an actual inclusion parameter data combination. A mathematical relationship between a clarity grade and a particular inclusion parameter combination is then extrapolated from the actual inclusion parameter data. A derived clarity grade is then assigned to a plurality of inclusion parameter combinations as a function of the mathematical relationship and a set of inputted inclusion parameters. Also, a method and system for providing a clarity grade includes receiving a plurality of inclusion characteristics associated with a gem and parameterizing each of the inclusion characteristics, so that a parameter value is assigned to each inclusion characteristic. The parameter values are then input to a mathematical formula so as to provide a parameterized clarity grade for the gem.

Classes IPC  ?

• G06F 16/22 - IndexationStructures de données à cet effetStructures de stockage
• G01N 21/87 - Analyse des pierres précieuses

Abrégé

Systems and methods here may be used for capturing images of sample gemstones under structured, filtered illumination for later comparison and image matching for authentication using networked computer systems.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G06T 5/20 - Amélioration ou restauration d'image utilisant des opérateurs locaux
• G06V 10/141 - Commande d’éclairage
• G06V 10/74 - Appariement de motifs d’image ou de vidéoMesures de proximité dans les espaces de caractéristiques
• G02B 5/20 - Filtres

Abrégé

Systems and methods here may be used for capturing images of sample gemstones under structured, filtered illumination for later comparison and image matching for authentication using networked computer systems.

Classes IPC  ?

• G06T 1/00 - Traitement de données d'image, d'application générale
• G06T 5/10 - Amélioration ou restauration d'image utilisant le filtrage dans le domaine non spatial
• G06T 7/00 - Analyse d'image

Abrégé

Systems and methods here may be used for automated capturing and analyzing spectrometer data of multiple sample gemstones on a stage, including mapping digital camera image data of samples, applying a Raman Probe to a first sample gemstone under evaluation on the stage, receiving spectrometer data of the sample gemstone from the probe, automatically moving the stage to a second sample, using the image data, and analyzing the other samples.

Classes IPC  ?

• G01J 3/44 - Spectrométrie RamanSpectrométrie par diffusion
• G01J 3/28 - Étude du spectre
• G01N 21/65 - Diffusion de Raman
• G01N 21/87 - Analyse des pierres précieuses

Abrégé

Systems and methods here may be used for a setup of fluorescence image capturing of a gemstone, such as a diamond placed on a flat stage. Some examples utilize a setup that both sends light and captures the image from the table side of the gemstone by passing ultraviolet (UV) light between 10 nm and 400 nm to the gemstone and capturing the excited fluorescence image for analysis through a dichroic beam splitter. In some examples, the cutoff is 300 nm. The dichroic beam splitter arrangement allows for the camera to focus on the same interface of the stage and gemstone over and over for ease of use and without moving, changing, or adjusting the equipment for different samples.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/64 - FluorescencePhosphorescence

Abrégé

Systems and methods here may be used for automated alignment and focus adjustment for one or multiple sample gemstones on a stage, including determining gemstone sample tilt based on image data, automatically moving a stage to align the tilted sample, determing a focal plane that overlaps a focal point of a camera with the gemstone, and automatically moving a stage to the focal plane.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures
• G01J 3/28 - Étude du spectre

Abrégé

A gem imaging system includes a stage having a platform configured to hold an object. The system further includes a light source configured to illuminate the object. The system further includes a housing configured to at least partially enclose the object. The housing is configured to position a mobile device such that a camera lens of the mobile device is aligned with the object.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G06T 7/00 - Analyse d'image
• H04N 23/56 - Caméras ou modules de caméras comprenant des capteurs d'images électroniquesLeur commande munis de moyens d'éclairage
• H04N 23/55 - Pièces optiques spécialement adaptées aux capteurs d'images électroniquesLeur montage

Abrégé

Systems and methods here may be used for automated alignment and focus adjustment for one or multiple sample gemstones on a stage, including determining gemstone sample tilt based on image data, automatically moving a stage to align the tilted sample, determining a focal plane that overlaps a focal point of a camera with the gemstone, and automatically moving a stage to the focal plane.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/17 - Systèmes dans lesquels la lumière incidente est modifiée suivant les propriétés du matériau examiné

Abrégé

Systems and methods here may be used for capturing and analyzing reflectance images of facets on a gemstone under particular lighting and camera setups to automatically generate a clarity grade and/or surface polish grade for the gemstone.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G06N 3/08 - Méthodes d'apprentissage
• G06T 7/00 - Analyse d'image
• G01J 3/02 - SpectrométrieSpectrophotométrieMonochromateursMesure de la couleur Parties constitutives

Abrégé

Systems and methods here may be used for capturing and analyzing reflectance images of facets on a gemstone under particular lighting and camera setups to automatically generate a clarity grade and/or surface polish grade for the gemstone.

Classes IPC  ?

• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures

Abrégé

Provided herein is an apparatus for assessing a fluorescence characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a gemstone to be assessed, one or more light source to provide uniform UV and non-UV illumination, an image capturing component, and a telecentric lens positioned to provide fluorescent images of the illuminated gemstone to the image capturing component. Also provided are methods of fluorescence analysis based on images collected using such an apparatus.

Classes IPC  ?

• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre
• G01N 21/64 - FluorescencePhosphorescence
• G01N 21/87 - Analyse des pierres précieuses

Abrégé

A computer-based system and method for taking clarity measurements of a gem, and a computer-readable medium having computer-executable instructions, are provided and include receiving a pixilated image of a gem and identifying pixels representing an inclusion. The method and medium further include determining characteristics of the inclusion as a function of the pixels representing the inclusion, and providing a clarity grade based upon the determined characteristics. Also provided is a method for mapping a gem, and a computer-readable medium having computer-executable instructions, which include receiving a pixilated image of a gem having facet edges, and identifying pixels representing the facet edges. The method and medium further include generating a diagram of the gem, such that the diagram is a function of the pixels representing the facet edges, and superimposing the diagram onto the pixilated image.

Classes IPC  ?

• G06T 7/00 - Analyse d'image
• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures

Abrégé

Systems and methods here may be used for automated capturing and analyzing spectrometer data of multiple sample gemstones on a stage, including mapping digital camera image data of samples, applying a Raman Probe to a first sample gemstone under evaluation on the stage, receiving spectrometer data of the sample gemstone from the probe, automatically moving the stage to a second sample, using the image data, and analyzing the other samples.

Classes IPC  ?

• G01J 3/44 - Spectrométrie RamanSpectrométrie par diffusion
• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/65 - Diffusion de Raman
• G01J 3/28 - Étude du spectre

Abrégé

Systems and methods here may be used for a laser inscriber or engraver of a gemstone using software feedback loops and multiple cameras to auto focus the system and automate the inscription.

Classes IPC  ?

• B23K 26/03 - Observation, p. ex. surveillance de la pièce à travailler
• B23K 26/08 - Dispositifs comportant un mouvement relatif entre le faisceau laser et la pièce
• B23K 26/359 - Travail par rayon laser, p. ex. soudage, découpage ou perçage pour le traitement de surface en formant une ligne ou un motif linéaire, p. ex. une ligne en pointillés d'amorce de rupture

Abrégé

Methods and systems described here include laser inscribing a gemstone, a computer in communication with a first light source and a second light source, and a laser generator to create an inscription on the gemstone, wherein the first light source is configured to be directed at the gemstone in the holder from a side view, wherein the second light source is configured to be directed at the gemstone in the holder from a girdle top-view, wherein the computer is configured to utilize the captured side image to map a side view girdle profile of the gemstone and calculate a relative motor movement to align each spot along the inscription with a laser focal plane.

Classes IPC  ?

• B23K 26/08 - Dispositifs comportant un mouvement relatif entre le faisceau laser et la pièce
• B23K 26/03 - Observation, p. ex. surveillance de la pièce à travailler
• B23K 26/035 - Alignement du faisceau laser
• B23K 26/04 - Alignement, pointage ou focalisation automatique du faisceau laser, p. ex. en utilisant la lumière rétrodiffusée

Abrégé

Systems and methods here may be used for a setup of fluorescence image capturing of a gemstone, such as a diamond placed on a flat stage. Some examples utilize a setup that both sends light and captures the image from the table side of the gemstone by passing ultraviolet (UV) light between 10 nm and 400 nm to the gemstone and capturing the excited fluorescence image for analysis through a dichroic beam splitter. In some examples, the cutoff is 300 nm. The dichroic beam splitter arrangement allows for the camera to focus on the same interface of the stage and gemstone over and over for ease of use and without moving, changing, or adjusting the equipment for different samples.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/64 - FluorescencePhosphorescence

Abrégé

Systems and methods here may be used for analyzing images of gemstones to automatically assign a haziness and/or fluorescence grade to the gemstone using contrast analysis on pixelated, digital images of the gemstones.

Classes IPC  ?

• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures
• G06T 7/13 - Détection de bords
• G06V 10/141 - Commande d’éclairage
• G06V 10/60 - Extraction de caractéristiques d’images ou de vidéos relative aux propriétés luminescentes, p. ex. utilisant un modèle de réflectance ou d’éclairage
• G06V 20/69 - Objets microscopiques, p. ex. cellules biologiques ou pièces cellulaires

Abrégé

Systems and methods here may be used for a analyzing images of gemstones to automatically assign a haziness and/or fluorescence grade to the gemstone using contrast analysis on pixelated, digital images of the gemstones.

Classes IPC  ?

• G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales

Abrégé

Provided herein is an apparatus for assessing a fluorescence characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a gemstone to be assessed, one or more light source to provide uniform UV and non-UV illumination, an image capturing component, and a telecentric lens positioned to provide fluorescent images of the illuminated gemstone to the image capturing component. Also provided are methods of fluorescence analysis based on images collected using such an apparatus.

Classes IPC  ?

• G01N 21/64 - FluorescencePhosphorescence
• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre
• G01N 21/87 - Analyse des pierres précieuses

Abrégé

Provided herein is an apparatus for assessing a color characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a sample gemstone to be assessed, a daylight-approximating light source to provide uniform illumination to the gemstone, an image capturing component, and a telecentric lens positioned to provide an image of the illuminated gemstone to the image capturing component. Also provided are methods of color analysis based on images collected using such an apparatus.

Classes IPC  ?

• G06T 7/90 - Détermination de caractéristiques de couleur
• G01N 21/25 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes
• G01N 21/87 - Analyse des pierres précieuses
• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre
• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures

Abrégé

Systems and methods here may be used for capturing and analyzing spectrometer data of multiple sample gemstones on a stage, including mapping digital camera image data of samples, for both reflective and transmission modes.

Classes IPC  ?

• G01J 3/42 - Spectrométrie d'absorptionSpectrométrie à double faisceauSpectrométrie par scintillementSpectrométrie par réflexion
• G01J 3/44 - Spectrométrie RamanSpectrométrie par diffusion
• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/35 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p. ex. spectrométrie d'absorption atomique en utilisant la lumière infrarouge
• G01N 21/33 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p. ex. spectrométrie d'absorption atomique en utilisant la lumière ultraviolette

Abrégé

Some examples herein include systems and methods of creating standards of gemstones of various classifications, which may display certain characteristics of the various classifications when excited by ultraviolet radiation and fluoresce in response. In some examples, a set of standards are created using fluorescent material, filters, and a radiation source to compare against a sample gemstone. In some examples, specific Light Emitting Diodes are selected to illuminate the gemstone samples under analysis.

Classes IPC  ?

• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures
• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/64 - FluorescencePhosphorescence
• B07C 5/34 - Tri en fonction d'autres propriétés particulières

Abrégé

Systems and methods here may be used for capturing and analyzing spectrometer data of multiple sample gemstones on a stage, including mapping digital camera image data of samples, for both reflective and transmission modes.

Classes IPC  ?

• G01N 21/33 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p. ex. spectrométrie d'absorption atomique en utilisant la lumière ultraviolette
• G01N 21/64 - FluorescencePhosphorescence
• G01N 21/87 - Analyse des pierres précieuses
• G01J 3/44 - Spectrométrie RamanSpectrométrie par diffusion

Abrégé

Some examples herein include systems and methods of creating standards of gemstones of various classifications, which may display certain characteristics of the various classifications when excited by ultraviolet radiation and fluoresce in response. In some examples, a set of standards are created using fluorescent material, filters, and a radiation source to compare against a sample gemstone. In some examples, specific Light Emitting Diodes are selected to illuminate the gemstone samples under analysis.

Classes IPC  ?

• G01N 21/33 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p. ex. spectrométrie d'absorption atomique en utilisant la lumière ultraviolette
• F21V 3/06 - GlobesVasquesVerres de protection caractérisés par les matériaux, traitements de surface ou revêtements caractérisés par le matériau
• F21Y 113/13 - Combinaison de sources lumineuses de couleurs différentes comprenant un ensemble de sources lumineuses ponctuelles
• F21Y 115/10 - Diodes électroluminescentes [LED]
• G01N 21/87 - Analyse des pierres précieuses

Abrégé

Systems and methods here may be configured for cooling and examining materials. In some example embodiments, the system may include a main thermoconductive body with indentations on the top surface, a bottom surface having legs structures along the edge, wherein the bottom surface and the plurality of leg structures form a partially enclosed bottom chamber, and a center channel connecting the top surface and the bottom chamber.

Classes IPC  ?

• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre
• F25D 3/10 - Dispositifs utilisant d'autres agents froidsDispositifs utilisant des récipients conservant le froid utilisant des gaz liquéfiés, p. ex. de l'air liquide
• G01N 21/87 - Analyse des pierres précieuses
• G01N 25/18 - Recherche ou analyse des matériaux par l'utilisation de moyens thermiques en recherchant la conductivité thermique

Abrégé

Systems and methods here may be used for a setup of image capturing of a gemstone, such as a diamond, exposed to different light sources. Some examples utilize a setup that both sends light and captures the image through multiple dichroic beam splitters at pre-selected timing. The multiple light source and multiple dichroic beam splitter arrangement allows for multiple gemstones to be analyzed using multiple methods with minimal moving, changing, or adjusting the equipment for different samples.

Classes IPC  ?

• G01N 21/64 - FluorescencePhosphorescence
• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre
• G02B 27/14 - Systèmes divisant ou combinant des faisceaux fonctionnant uniquement par réflexion
• G06T 7/90 - Détermination de caractéristiques de couleur
• G02B 27/10 - Systèmes divisant ou combinant des faisceaux

Abrégé

Systems and methods here may be used for a setup of image capturing of a gemstone, such as a diamond, exposed to different light sources. Some examples utilize a setup that both sends light and captures the image through multiple dichroic beam splitters at pre-selected timing. The multiple light source and multiple dichroic beam splitter arrangement allows for multiple gemstones to be analyzed using multiple methods with minimal moving, changing, or adjusting the equipment for different samples.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/64 - FluorescencePhosphorescence
• G01N 21/63 - Systèmes dans lesquels le matériau analysé est excité de façon à ce qu'il émette de la lumière ou qu'il produise un changement de la longueur d'onde de la lumière incidente excité optiquement

Abrégé

A method and system for generating a clarity grading look-up table includes collecting actual inclusion parameter data for a plurality of gems, where the actual inclusion parameter data includes an actual clarity grade and an actual inclusion parameter data combination. A mathematical relationship between a clarity grade and a particular inclusion parameter combination is then extrapolated from the actual inclusion parameter data. A derived clarity grade is then assigned to a plurality of inclusion parameter combinations as a function of the mathematical relationship and a set of inputted inclusion parameters. Also, a method and system for providing a clarity grade includes receiving a plurality of inclusion characteristics associated with a gem and parameterizing each of the inclusion characteristics, so that a parameter value is assigned to each inclusion characteristic. The parameter values are then input to a mathematical formula so as to provide a parameterized clarity grade for the gem.

Classes IPC  ?

• G06F 7/00 - Procédés ou dispositions pour le traitement de données en agissant sur l'ordre ou le contenu des données maniées
• G06F 16/22 - IndexationStructures de données à cet effetStructures de stockage
• G01N 21/87 - Analyse des pierres précieuses

Abrégé

Systems and methods here may be used for automated capturing and analyzing spectrometer data of multiple sample gemstones on a stage, including mapping digital camera image data of samples, applying a Raman Probe to a first sample gemstone under evaluation on the stage, receiving spectrometer data of the sample gemstone from the probe, automatically moving the stage to a second sample, using the image data, and analyzing the other samples.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/65 - Diffusion de Raman
• G01N 21/00 - Recherche ou analyse des matériaux par l'utilisation de moyens optiques, c.-à-d. en utilisant des ondes submillimétriques, de la lumière infrarouge, visible ou ultraviolette
• G01N 21/31 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p. ex. spectrométrie d'absorption atomique
• G01N 21/25 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes

Abrégé

Systems and methods here may be used for automated capturing and analyzing spectrometer data of multiple sample gemstones on a stage, including mapping digital camera image data of samples, applying a Raman Probe to a first sample gemstone under evaluation on the stage, receiving spectrometer data of the sample gemstone from the probe, automatically moving the stage to a second sample, using the image data, and analyzing the other samples.

Classes IPC  ?

• G01J 3/44 - Spectrométrie RamanSpectrométrie par diffusion
• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/65 - Diffusion de Raman
• G01J 3/28 - Étude du spectre

Abrégé

Systems and methods here may be used for a setup of fluorescence image capturing of a gemstone, such as a diamond placed on a flat stage. Some examples utilize a setup that both sends light and captures the image from the table side of the gemstone by passing ultraviolet (UV) light between 10 nm and 400 nm to the gemstone and capturing the excited fluorescence image for analysis through a dichroic beam splitter. In some examples, the cutoff is 300 nm. The dichroic beam splitter arrangement allows for the camera to focus on the same interface of the stage and gemstone over and over for ease of use and without moving, changing, or adjusting the equipment for different samples.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/00 - Recherche ou analyse des matériaux par l'utilisation de moyens optiques, c.-à-d. en utilisant des ondes submillimétriques, de la lumière infrarouge, visible ou ultraviolette
• G01N 21/25 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes
• G01N 21/64 - FluorescencePhosphorescence
• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures

Abrégé

Systems and methods here may be used for a setup of fluorescence image capturing of a gemstone, such as a diamond placed on a flat stage. Some examples utilize a setup that both sends light and captures the image from the table side of the gemstone by passing ultraviolet (UV) light between 10 nm and 400 nm to the gemstone and capturing the excited fluorescence image for analysis through a dichroic beam splitter. In some examples, the cutoff is 300 nm. The dichroic beam splitter arrangement allows for the camera to focus on the same interface of the stage and gemstone over and over for ease of use and without moving, changing, or adjusting the equipment for different samples.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/64 - FluorescencePhosphorescence

Abrégé

Provided herein is an apparatus for assessing a fluorescence characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a gemstone to be assessed, one or more light source to provide uniform UV and non-UV illumination, an image capturing component, and a telecentric lens positioned to provide fluorescent images of the illuminated gemstone to the image capturing component. Also provided are methods of fluorescence analysis based on images collected using such an apparatus.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/64 - FluorescencePhosphorescence
• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre

Abrégé

A computer-based system and method for taking clarity measurements of a gem, and a computer-readable medium having computer-executable instructions, are provided and include receiving a pixilated image of a gem and identifying pixels representing an inclusion. The method and medium further include determining characteristics of the inclusion as a function of the pixels representing the inclusion, and providing a clarity grade based upon the determined characteristics. Also provided is a method for mapping a gem, and a computer-readable medium having computer-executable instructions, which include receiving a pixilated image of a gem having facet edges, and identifying pixels representing the facet edges. The method and medium further include generating a diagram of the gem, such that the diagram is a function of the pixels representing the facet edges, and superimposing the diagram onto the pixilated image.

Classes IPC  ?

• G06T 7/00 - Analyse d'image
• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures

Abrégé

A gemstone detection method is provided and includes using a camera to generate a set of training pictures illustrating three-dimensional features of a gemstone cut with a pattern. Each training picture in the set of training pictures includes facets of and inclusions within the gemstone visible along a point-of-view (POV) through the gemstone. The gemstone detection method further includes generating a trained neural network by training an untrained neural network using the set of training pictures and a set of training sketches of edges of the facets of the gemstone generated from the set of training pictures and using the trained neural network to iteratively generate machine-generated drawings from the set of training pictures. Each of the machine-generated drawings identifies edges of the facets of the gemstone. In addition, the gemstone detection method includes combining the set of machine-generated drawings into a three-dimensional model.

Classes IPC  ?

• G06T 7/00 - Analyse d'image
• G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
• G06N 20/00 - Apprentissage automatique
• G06N 3/08 - Méthodes d'apprentissage

Abrégé

Embodiments of the present invention disclose a method, computer program product, and system for mapping one or more inclusions in a mineral crystal. A set of image data associated with the mineral crystal is receiving. The received set of image data is analyzed. One or more inclusions associated with the mineral crystal is identified based on the analyzed image data. The identified one or more inclusions of the mineral crystal are mapped to a tree structure representing the surface of the mineral crystal. The mapped one or more inclusions are encoded as a chain-code associated with the mineral crystal. A radial distance between a center of mass value of the mineral crystal and a center of mass value of the identified one or more inclusions is calculated and a mineral crystal fingerprint is generated.

Classes IPC  ?

• G06T 7/00 - Analyse d'image
• G06T 7/11 - Découpage basé sur les zones
• G06T 7/13 - Détection de bords
• G06T 15/20 - Calcul de perspectives
• G06T 7/60 - Analyse des attributs géométriques
• G06T 7/55 - Récupération de la profondeur ou de la forme à partir de plusieurs images
• G06T 3/60 - Rotation d’images entières ou de parties d'image

Abrégé

Provided herein is an apparatus for assessing a color characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a sample gemstone to be assessed, a daylight-approximating light source to provide uniform illumination to the gemstone, an image capturing component, and a telecentric lens positioned to provide an image of the illuminated gemstone to the image capturing component. Also provided are methods of color analysis based on images collected using such an apparatus.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/25 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes
• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre
• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures

Abrégé

Provided herein is an apparatus for assessing a fluorescence characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a gemstone to be assessed, one or more light source to provide uniform UV and non-UV illumination, an image capturing component, and a telecentric lens positioned to provide fluorescent images of the illuminated gemstone to the image capturing component. Also provided are methods of fluorescence analysis based on images collected using such an apparatus.

Classes IPC  ?

• G01N 21/00 - Recherche ou analyse des matériaux par l'utilisation de moyens optiques, c.-à-d. en utilisant des ondes submillimétriques, de la lumière infrarouge, visible ou ultraviolette
• G01N 21/64 - FluorescencePhosphorescence
• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre
• G01N 21/87 - Analyse des pierres précieuses

Abrégé

The embodiments disclosed herein relate to the examination of gemstones including diamonds, both cut/polished and rough, using the technology of Resonant Ultrasound Spectroscopy. The resonant frequencies are obtained by mechanically causing the stone to vibrate using a swept sine oscillator, sensing the resonance vibrations, and displaying the spectrum to yield a pattern describing the stone. The resonance fingerprints can be used to both track an individual stone to verify its integrity or to grade a rough stone to establish potential value.

Classes IPC  ?

• G01N 29/12 - Analyse de solides en mesurant la fréquence ou la résonance des ondes acoustiques
• G01N 29/24 - Sondes
• G01N 29/46 - Traitement du signal de réponse détecté par analyse spectrale, p. ex. par analyse de Fourier
• G01N 29/44 - Traitement du signal de réponse détecté

Abrégé

Systems and methods here may be configured for cooling and examining materials. In some example embodiments, the system may include a main thermoconductive body with indentations on the top surface, a bottom surface having legs structures along the edge, wherein the bottom surface and the plurality of leg structures form a partially enclosed bottom chamber, and a center channel connecting the top surface and the bottom chamber.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G01N 1/28 - Préparation d'échantillons pour l'analyse
• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre

Abrégé

Systems and methods here may be configured for cooling and examining materials. In some example embodiments, the system may include a main thermoconductive body with indentations on the top surface, a bottom surface having legs structures along the edge, wherein the bottom surface and the plurality of leg structures form a partially enclosed bottom chamber, and a center channel connecting the top surface and the bottom chamber.

Classes IPC  ?

• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre
• F25D 3/10 - Dispositifs utilisant d'autres agents froidsDispositifs utilisant des récipients conservant le froid utilisant des gaz liquéfiés, p. ex. de l'air liquide
• G01N 21/87 - Analyse des pierres précieuses
• G01N 25/18 - Recherche ou analyse des matériaux par l'utilisation de moyens thermiques en recherchant la conductivité thermique

Abrégé

A method and system for generating a clarity grading look-up table includes collecting actual inclusion parameter data for a plurality of gems, where the actual inclusion parameter data includes an actual clarity grade and an actual inclusion parameter data combination. A mathematical relationship between a clarity grade and a particular inclusion parameter combination is then extrapolated from the actual inclusion parameter data. A derived clarity grade is then assigned to a plurality of inclusion parameter combinations as a function of the mathematical relationship and a set of inputted inclusion parameters. Also, a method and system for providing a clarity grade includes receiving a plurality of inclusion characteristics associated with a gem and parameterizing each of the inclusion characteristics, so that a parameter value is assigned to each inclusion characteristic. The parameter values are then input to a mathematical formula so as to provide a parameterized clarity grade for the gem.

Classes IPC  ?

• G06F 7/00 - Procédés ou dispositions pour le traitement de données en agissant sur l'ordre ou le contenu des données maniées
• G06F 16/22 - IndexationStructures de données à cet effetStructures de stockage
• G01N 21/87 - Analyse des pierres précieuses

Abrégé

Resonant Ultrasound Spectroscopy (RUS) is applied to diamonds (both cut/polished gemstones and rough diamonds) to yield a digital fingerprint from which the stone may be authenticated and sorted according to the structural quality. Diamonds are mined as rough stones from which they undergo examination to determine their value as being gem, or of two different industrial qualities. Fewer than 25% of mined diamonds are worthy of cutting and polishing to yield gems for jewelry. About 40% of the remaining population still have value as industrial diamonds for machine tools, and the rest is ground into dust to provide coatings for grinding applications. Rough stones exist in two conditions being coated and uncoated. The coated stones have a layer of polycrystalline diamond, different from the predominant crystal structure, rendering them opaque. This interferes with optical inspection, as any cracks, or inclusions can't be seen. RUS provides a reliable sorting and fingerprinting system for both cut/polished stones as well as rough diamonds of sufficient structural quality to yield a spectral signature. As high value items, diamonds are shipped around the world, and but sometimes thefts occur. RUS yields a digital fingerprint allowing the identity of an individual stone to be verified upon recovery.

Classes IPC  ?

• G01N 29/12 - Analyse de solides en mesurant la fréquence ou la résonance des ondes acoustiques
• G01N 29/24 - Sondes
• G01N 29/46 - Traitement du signal de réponse détecté par analyse spectrale, p. ex. par analyse de Fourier
• G01N 29/44 - Traitement du signal de réponse détecté

Abrégé

Some examples herein include systems and methods of creating standards of gemstones of various classifications, which may display certain characteristics of the various classifications when excited by ultraviolet radiation and fluoresce in response. In some examples, a set of standards are created using fluorescent material, filters, and a radiation source to compare against a sample gemstone.

Classes IPC  ?

• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures
• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/64 - FluorescencePhosphorescence
• G01N 21/93 - Étalons de détectionCalibrage

Abrégé

A computer-based system and method for taking clarity measurements of a gem, and a computer-readable medium having computer-executable instructions, are provided and include receiving a pixilated image of a gem and identifying pixels representing an inclusion. The method and medium further include determining characteristics of the inclusion as a function of the pixels representing the inclusion, and providing a clarity grade based upon the determined characteristics. Also provided is a method for mapping a gem, and a computer-readable medium having computer-executable instructions, which include receiving a pixilated image of a gem having facet edges, and identifying pixels representing the facet edges. The method and medium further include generating a diagram of the gem, such that the diagram is a function of the pixels representing the facet edges, and superimposing the diagram onto the pixilated image.

Classes IPC  ?

• G06T 7/00 - Analyse d'image
• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures

Abrégé

Provided herein is an apparatus for assessing a fluorescence characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a gemstone to be assessed, one or more light source to provide uniform UV and non-UV illumination, an image capturing component, and a telecentric lens positioned to provide fluorescent images of the illuminated gemstone to the image capturing component. Also provided are methods of fluorescence analysis based on images collected using such an apparatus.

Classes IPC  ?

• G01N 21/64 - FluorescencePhosphorescence
• G01N 21/87 - Analyse des pierres précieuses
• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre

Abrégé

Embodiments of the present invention disclose a method, computer program product, and system for mapping one or more inclusions in a mineral crystal. A set of image data associated with the mineral crystal is receiving. The received set of image data is analyzed. One or more inclusions associated with the mineral crystal is identified based on the analyzed image data. The identified one or more inclusions of the mineral crystal are mapped to a tree structure representing the surface of the mineral crystal. The mapped one or more inclusions are encoded as a chain-code associated with the mineral crystal. A radial distance between a center of mass value of the mineral crystal and a center of mass value of the identified one or more inclusions is calculated and a mineral crystal fingerprint is generated.

Classes IPC  ?

• G06T 7/00 - Analyse d'image
• G06T 7/11 - Découpage basé sur les zones
• G06T 7/13 - Détection de bords
• G06T 15/20 - Calcul de perspectives
• G06T 7/60 - Analyse des attributs géométriques
• G06T 3/60 - Rotation d’images entières ou de parties d'image

Abrégé

Resonant Ultrasound Spectroscopy (RUS) is applied to diamonds (both cut/polished gemstones and rough diamonds) to yield a digital fingerprint from which the stone may be authenticated and sorted according to the structural quality. Diamonds are mined as rough stones from which they undergo examination to determine their value as being gem, or of two different industrial qualities. Fewer than 25% of mined diamonds are worthy of cutting and polishing to yield gems for jewelry. About 40% of the remaining population still have value as industrial diamonds for machine tools, and the rest is ground into dust to provide coatings for grinding applications. Rough stones exist in two conditions being coated and uncoated. The coated stones have a layer of polycrystalline diamond, different from the predominant crystal structure, rendering them opaque. This interferes with optical inspection, as any cracks, or inclusions can't be seen. RUS provides a reliable sorting and fingerprinting system for both cut/polished stones as well as rough diamonds of sufficient structural quality to yield a spectral signature. As high value items, diamonds are shipped around the world, and but sometimes thefts occur. RUS yields a digital fingerprint allowing the identity of an individual stone to be verified upon recovery.

Classes IPC  ?

• G01N 29/12 - Analyse de solides en mesurant la fréquence ou la résonance des ondes acoustiques
• G01N 29/24 - Sondes
• G01N 29/46 - Traitement du signal de réponse détecté par analyse spectrale, p. ex. par analyse de Fourier
• G01N 29/44 - Traitement du signal de réponse détecté

Abrégé

A cooling apparatus includes a container configured to contain a coolant within a space. The apparatus further includes a cooling block positioned substantially within the space and having a high heat capacity such that the space not occupied by the cooling block is filled with a coolant to a level at or below the top of the cooling block, and a placement structure having high thermal conductivity positioned on top of the cooling block and outside of the space. A method for cooling an object is also provided, which includes inserting a coolant into a container configured to contain the coolant within a space, and placing the object on a placement structure outside the space. For this method, the placement structure has a high thermal conductivity and is coupled to a cooling block, the cooling block having a high heat capacity and positioned substantially within the space.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• B01L 7/00 - Appareils de chauffage ou de refroidissementDispositifs d'isolation thermique

Abrégé

A computer-based system and method for taking clarity measurements of a gem, and a computer-readable medium having computer-executable instructions, are provided and include receiving a pixilated image of a gem and identifying pixels representing an inclusion. The method and medium further include determining characteristics of the inclusion as a function of the pixels representing the inclusion, and providing a clarity grade based upon the determined characteristics. Also provided is a method for mapping a gem, and a computer-readable medium having computer-executable instructions, which include receiving a pixilated image of a gem having facet edges, and identifying pixels representing the facet edges. The method and medium further include generating a diagram of the gem, such that the diagram is a function of the pixels representing the facet edges, and superimposing the diagram onto the pixilated image.

Classes IPC  ?

• G06T 7/00 - Analyse d'image
• G01N 21/87 - Analyse des pierres précieuses

Abrégé

Disclosed herein are devices and methods for screening gemstones (e.g., diamonds). In particular, the disclosed method and system can efficiently and accurately identify and distinguish genuine earth-mined gemstones (e.g., diamond) from synthetic and treated gemstones or gemstone simulants.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/64 - FluorescencePhosphorescence
• G01J 3/28 - Étude du spectre

Abrégé

Disclosed herein are devices and methods for screening gemstones (e.g., diamonds). In articular, the disclosed method and system can efficiently and accurately identify and distinguish genuine earth-mined gemstones (e.g., diamond) from synthetic and treated gemstones or gemstone simulants.

Classes IPC  ?

• G01N 21/64 - FluorescencePhosphorescence
• A44C 17/00 - Pierres précieuses ou similaires
• A44C 19/00 - Dispositifs pour prévenir le vol des montres ou des bijoux
• G01N 21/87 - Analyse des pierres précieuses
• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre
• G09B 5/02 - Matériel à but éducatif à commande électrique avec présentation visuelle du sujet à étudier, p. ex. en utilisant une bande filmée

Abrégé

Provided herein is an apparatus for assessing a color characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a sample gemstone to be assessed, a daylight-approximating light source to provide uniform illumination to the gemstone, an image capturing component, and a telecentric lens positioned to provide an image of the illuminated gemstone to the image capturing component. Also provided are methods of color analysis based on images collected using such an apparatus.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/25 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes
• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre
• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures

Abrégé

A method and system for generating a clarity grading look-up table includes collecting actual inclusion parameter data for a plurality of gems, where the actual inclusion parameter data includes an actual clarity grade and an actual inclusion parameter data combination. A mathematical relationship between a clarity grade and a particular inclusion parameter combination is then extrapolated from the actual inclusion parameter data. A derived clarity grade is then assigned to a plurality of inclusion parameter combinations as a function of the mathematical relationship and a set of inputted inclusion parameters. Also, a method and system for providing a clarity grade includes receiving a plurality of inclusion characteristics associated with a gem and parameterizing each of the inclusion characteristics, so that a parameter value is assigned to each inclusion characteristic. The parameter values are then input to a mathematical formula so as to provide a parameterized clarity grade for the gem.

Classes IPC  ?

• G06F 7/00 - Procédés ou dispositions pour le traitement de données en agissant sur l'ordre ou le contenu des données maniées
• G06F 16/22 - IndexationStructures de données à cet effetStructures de stockage
• G01N 21/87 - Analyse des pierres précieuses

Abrégé

Provided herein is an apparatus for assessing a color characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a sample gemstone to be assessed, a daylight-approximating light source to provide uniform illumination to the gemstone, an image capturing component, and a telecentric lens positioned to provide an image of the illuminated gemstone to the image capturing component. Also provided are methods of color analysis based on images collected using such an apparatus.

Classes IPC  ?

• G01N 21/00 - Recherche ou analyse des matériaux par l'utilisation de moyens optiques, c.-à-d. en utilisant des ondes submillimétriques, de la lumière infrarouge, visible ou ultraviolette
• G01N 21/87 - Analyse des pierres précieuses
• G01N 21/25 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes
• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre
• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures

Abrégé

Provided herein is an apparatus for assessing a fluorescence characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a gemstone to be assessed, one or more light source to provide uniform UV and non-UV illumination, an image capturing component, and a telecentric lens positioned to provide fluorescent images of the illuminated gemstone to the image capturing component. Also provided are methods of fluorescence analysis based on images collected using such an apparatus.

Classes IPC  ?

• G01N 21/00 - Recherche ou analyse des matériaux par l'utilisation de moyens optiques, c.-à-d. en utilisant des ondes submillimétriques, de la lumière infrarouge, visible ou ultraviolette
• G01N 21/64 - FluorescencePhosphorescence
• G01N 21/87 - Analyse des pierres précieuses
• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre

Abrégé

Provided herein is an apparatus for assessing a color characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a sample gemstone to be assessed, a daylight-approximating light source to provide uniform illumination to the gemstone, an image capturing component, and a telecentric lens positioned to provide an image of the illuminated gemstone to the image capturing component. Also provided are methods of color analysis based on images collected using such an apparatus.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre

Abrégé

Provided herein is an apparatus for assessing a fluorescence characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a gemstone to be assessed, one or more light source to provide uniform UV and non-UV illumination, an image capturing component, and a telecentric lens positioned to provide fluorescent images of the illuminated gemstone to the image capturing component. Also provided are methods of fluorescence analysis based on images collected using such an apparatus.

Classes IPC  ?

• G01N 21/87 - Analyse des pierres précieuses
• G01N 33/38 - BétonChauxMortierPlâtreBriquesProduits céramiquesVerre
• G01N 21/64 - FluorescencePhosphorescence

Abrégé

A method and system for generating a clarity grading look-up table includes collecting actual inclusion parameter data for a plurality of gems, where the actual inclusion parameter data includes an actual clarity grade and an actual inclusion parameter data combination. A mathematical relationship between a clarity grade and a particular inclusion parameter combination is then extrapolated from the actual inclusion parameter data. A derived clarity grade is then assigned to a plurality of inclusion parameter combinations as a function of the mathematical relationship and a set of inputted inclusion parameters. Also, a method and system for providing a clarity grade includes receiving a plurality of inclusion characteristics associated with a gem and parameterizing each of the inclusion characteristics, so that a parameter value is assigned to each inclusion characteristic. The parameter values are then input to a mathematical formula so as to provide a parameterized clarity grade for the gem.

Classes IPC  ?

• G06F 7/00 - Procédés ou dispositions pour le traitement de données en agissant sur l'ordre ou le contenu des données maniées
• G01N 21/87 - Analyse des pierres précieuses

Abrégé

A reflected dark field structure includes a bottom plate, a support tube, a light unit, a diffuser structure, and a reflector unit that provides reflected dark field illumination, such that a gem held by the support tube and surrounded by the diffuser structure is illuminated and viewable through an aperture in the reflector unit. A method for imaging and analyzing a gem includes placing the gem onto a support tube where it is illuminated with dark field and reflected dark field illumination, and viewing the gem via an aperture located on a top reflector unit, which provides a top cover for the gem. Furthermore, a method and apparatus for obtaining images of a gem includes a dark field stage, a reflector unit, and an image-acquiring device, such that a gem placed in the dark field stage is illuminated, and such that the reflector unit covers the dark field stage and provides reflected dark field illumination, and such that the image-acquiring device is directed towards an aperture in the reflector unit.

Classes IPC  ?

• G01N 21/01 - Dispositions ou appareils pour faciliter la recherche optique

Abrégé

A reflected dark field structure includes a bottom plate, a support tube, a light unit, a diffuser structure, and a reflector unit that provides reflected dark field illumination, such that a gem held by the support tube and surrounded by the diffuser structure is illuminated and viewable through an aperture in the reflector unit. A method for imaging and analyzing a gem includes placing the gem onto a support tube where it is illuminated with dark field and reflected dark field illumination, and viewing the gem via an aperture located on a top reflector unit, which provides a top cover for the gem. Furthermore, a method and apparatus for obtaining images of a gem includes a dark field stage, a reflector unit, and an image-acquiring device, such that a gem placed in the dark field stage is illuminated, and such that the reflector unit covers the dark field stage and provides reflected dark field illumination, and such that the image-acquiring device is directed towards an aperture in the reflector unit.

Classes IPC  ?

• G02B 21/06 - Moyens pour éclairer un échantillon
• G01N 21/00 - Recherche ou analyse des matériaux par l'utilisation de moyens optiques, c.-à-d. en utilisant des ondes submillimétriques, de la lumière infrarouge, visible ou ultraviolette

Abrégé

A cooling apparatus includes a container configured to contain a coolant within a space. The apparatus further includes a cooling block positioned substantially within the space and having a high heat capacity such that the space not occupied by the cooling block is filled with a coolant to a level at or below the top of the cooling block, and a placement structure having high thermal conductivity positioned on top of the cooling block and outside of the space. A method for cooling an object is also provided, which includes inserting a coolant into a container configured to contain the coolant within a space, and placing the object on a placement structure outside the space. For this method, the placement structure has a high thermal conductivity and is coupled to a cooling block, the cooling block having a high heat capacity and positioned substantially within the space.

Classes IPC  ?

• F28F 7/00 - Éléments non couverts par les groupes , ou
• G01N 21/87 - Analyse des pierres précieuses
• B01L 7/00 - Appareils de chauffage ou de refroidissementDispositifs d'isolation thermique

Abrégé

A computer-based system and method for taking clarity measurements of a gem, and a computer-readable medium having computer-executable instructions, are provided and include receiving a pixilated image of a gem and identifying pixels representing an inclusion. The method and medium further include determining characteristics of the inclusion as a function of the pixels representing the inclusion, and providing a clarity grade based upon the determined characteristics. Also provided is a method for mapping a gem, and a computer-readable medium having computer-executable instructions, which include receiving a pixilated image of a gem having facet edges, and identifying pixels representing the facet edges. The method and medium further include generating a diagram of the gem, such that the diagram is a function of the pixels representing the facet edges, and superimposing the diagram onto the pixilated image.

Classes IPC  ?

• G06T 7/00 - Analyse d'image
• G01N 21/87 - Analyse des pierres précieuses

Abrégé

A method and system for generating a clarity grading look-up table includes collecting actual inclusion parameter data for a plurality of gems, where the actual inclusion parameter data includes an actual clarity grade and an actual inclusion parameter data combination. A mathematical relationship between a clarity grade and a particular inclusion parameter combination is then extrapolated from the actual inclusion parameter data. A derived clarity grade is then assigned to a plurality of inclusion parameter combinations as a function of the mathematical relationship and a set of inputted inclusion parameters. Also, a method and system for providing a clarity grade includes receiving a plurality of inclusion characteristics associated with a gem and parameterizing each of the inclusion characteristics, so that a parameter value is assigned to each inclusion characteristic. The parameter values are then input to a mathematical formula so as to provide a parameterized clarity grade for the gem.

Classes IPC  ?

• G06F 7/00 - Procédés ou dispositions pour le traitement de données en agissant sur l'ordre ou le contenu des données maniées