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1. 发明申请

US20230082604A1 IMAGING ASSISTED SCANNING SPECTROSCOPY FOR GEM IDENTIFICATION 有权
公开(公告)号：US20230082604A1
公开(公告)日：2023-03-16
申请号：US17962784
申请日：2022-10-10
申请人： Gemological Institute of America, Inc. (GIA)
发明人： Tsung-Han TSAI , Hiroshi TAKAHASHI
IPC分类号： G01N21/87 , G01N21/65 , G01J3/28
摘要： 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.

2. 发明授权

US11562473B2 Automated system and method for clarity measurements and clarity grading 有权
公开(公告)号：US11562473B2
公开(公告)日：2023-01-24
申请号：US17103737
申请日：2020-11-24
申请人： Gemological Institute of America, Inc. (GIA)
发明人： Marc Verboven , Troy Blodgett , Dirk Nuyts
IPC分类号： G06T7/00 , G01N21/87 , G01N21/88
摘要： 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.

3. 发明申请

US20220252520A1 FLUORESCENCE IMAGING OF GEMSTONE ON TRANSPARENT STAGE 有权
公开(公告)号：US20220252520A1
公开(公告)日：2022-08-11
申请号：US17731752
申请日：2022-04-28
申请人： Gemological Institute of America, Inc. (GIA)
发明人： Tsung-Han TSAI , Wuyi WANG
IPC分类号： G01N21/87 , G01N21/64
摘要： 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.

4. 发明申请

US20210302322A1 IMAGING ASSISTED SCANNING SPECTROSCOPY FOR GEM IDENTIFICATION 有权
公开(公告)号：US20210302322A1
公开(公告)日：2021-09-30
申请号：US17200706
申请日：2021-03-12
申请人： Gemological Institute of America, Inc. (GIA)
发明人： Tsung-Han TSAI , Hiroshi TAKAHASHI
IPC分类号： G01N21/87 , G01N21/65 , G01J3/28
摘要： 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.

5. 发明授权

US10859505B2 Fluorescence box for gemological applications 有权
公开(公告)号：US10859505B2
公开(公告)日：2020-12-08
申请号：US15881583
申请日：2018-01-26
申请人： Gemological Institute of America, Inc. (GIA)
发明人： Ronald Geurts , Wuyi Wang , Alex Balter , Christopher M. Breeding
IPC分类号： G01N21/88 , G01N21/87 , G01N21/64 , G01N21/93
摘要： 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.

6. 发明授权

US10318515B2 Method and system for providing a clarity grade for a gem 有权
公开(公告)号：US10318515B2
公开(公告)日：2019-06-11
申请号：US15151902
申请日：2016-05-11
申请人： GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
发明人： Marc Verboven , Troy Blodgett
IPC分类号： G06F7/00 , G06F16/22 , G01N21/87
摘要： 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.

7. 发明授权

US09366638B2 Method and system for providing a clarity grade for a gem 有权
公开(公告)号：US09366638B2
公开(公告)日：2016-06-14
申请号：US13845995
申请日：2013-03-18
申请人： GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
发明人： Marc Verboven , Troy Blodgett
IPC分类号： G06F7/00 , G01N21/87
CPC分类号： G06F17/30339 , G01N21/87
摘要： 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.

8. 发明授权

US08120758B2 Fast UV-VIS-NIR absorption spectrometer system and method 有权
标题翻译：快速UV-VIS-NIR吸收光谱仪系统及方法
公开(公告)号：US08120758B2
公开(公告)日：2012-02-21
申请号：US12380425
申请日：2009-02-27
申请人： Troy Blodgett , Matt Hall , Thomas Scott Hemphill , Wuyi Wang
发明人： Troy Blodgett , Matt Hall , Thomas Scott Hemphill , Wuyi Wang
IPC分类号： G01N21/87
CPC分类号： G01N21/87 , G01N21/31 , G01N21/3563 , G01N2021/3155 , G01N2201/065
摘要： A method and system for evaluating a colored gem stone which has been cooled to below a designated temperature are provided. The system includes a cooling unit configured to support and cool a gem stone to below a desired temperature, an electromagnetic radiation source, a spectrometer, an integrating sphere, and a processing unit. The method includes receiving a spectral response of the colored gem stone and sampling a noise component within a range of wavelengths in the spectral response so as to make a baseline determination. The method further includes ascertaining a presence of at least one designated peak within the range of wavelengths as a function of the baseline determination, and evaluating the presence of each of the at least one designated peaks so as to provide an indication of whether the colored gem stone requires further evaluation.
摘要翻译：提供了一种用于评估已经冷却到指定温度以下的有色宝石的方法和系统。该系统包括被配置为将宝石支撑并冷却到期望温度以下的冷却单元，电磁辐射源，光谱仪，积分球和处理单元。该方法包括接收彩色宝石的光谱响应并对光谱响应中的波长范围内的噪声分量进行采样，从而进行基线确定。该方法还包括确定作为基线确定的函数的在波长范围内的至少一个指定峰的存在，以及评估至少一个指定峰中的每一个的存在，以便提供彩色宝石石头需要进一步评估。

9. 发明授权

US07260544B1 System and methods for evaluating the appearance of a gemstone 有权
标题翻译：用于评估宝石外观的系统和方法
公开(公告)号：US07260544B1
公开(公告)日：2007-08-21
申请号：US09687759
申请日：2000-10-12
申请人： Ilene M. Reinitz , Mary L. Johnson , James E. Shigley , Thomas S. Hemphill
发明人： Ilene M. Reinitz , Mary L. Johnson , James E. Shigley , Thomas S. Hemphill
IPC分类号： B44B5/00 , G01N21/00
CPC分类号： G01N21/87 , G06Q30/0278 , G06Q50/22
摘要： Of the “four C's,” cut has historically been the most complex to understand and assess. This application presents a three-dimensional mathematical model to study the interaction of light with a fully faceted, colorless, symmetrical round-brilliant-cut diamond. With this model, one can analyze how various appearance factors (brilliance, fire, and scintillation) depend on proportions. The model generates images and a numerical measurement of the optical efficiency of the round brilliant—called DCLR—which approximates overall fire. DCLR values change with variations in cut proportions, in particular crown angle, pavilion angle, table size, star facet length, culet size, and lower girdle facet length. The invention describes many combinations of proportions with equal or higher DCLR than “Ideal” cuts, and these DCLR ratings may be balanced with other factors such as brilliance and scintillation to provide a cut grade for an existing diamond or a cut analysis for prospective cut of diamond rough.
摘要翻译：在“四C”中，削减历来是最为复杂的理解和评估。该应用提出了一种三维数学模型来研究光与全面，无色，对称的圆形切割钻石的相互作用。使用这个模型，可以分析各种外观因素（亮度，火焰和闪烁）如何依赖于比例。该模型生成近似于整体火灾的圆形辉煌 - 称为DCLR的光学效率的图像和数值测量。 DCLR值随着切割比例的变化而变化，特别是冠角，亭角，桌面尺寸，星形面长度，底纹尺寸和下腰带面长度。本发明描述了与“理想”切割相同或更高的DCLR的比例的许多组合，并且这些DCLR等级可以与诸如亮度和闪烁之类的其他因素平衡，以为现有的钻石提供切割等级或用于切割的切割分析钻石粗糙

10. 发明申请

US20020008925A1 Gem identification viewer 审中-公开
公开(公告)号：US20020008925A1
公开(公告)日：2002-01-24
申请号：US09931907
申请日：2001-08-16
申请人： Gemological Institute of America, Inc.
发明人： Gilbert N. Ravich , Shane Elen , James E. Shigley
IPC分类号： G02B005/22
CPC分类号： G02B27/025 , B65D5/5028 , B65D77/26 , G01N21/87 , G02B25/002 , Y10T29/23
摘要： A gem identifying device using filtered transmitted light for use in distinguishing type-I colorless diamonds from type II colorless diamonds, and natural diamonds and gems from synthetic or treated diamonds and gems.

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