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公开(公告)号：US20240159683A1
公开(公告)日：2024-05-16
申请号：US18421823
申请日：2024-01-24
Applicant: Gemological Institute of America, Inc. (GIA)
Inventor： Hiroshi TAKAHASHI
CPC classification number: G01N21/87 , G01N21/255 , G01N33/381 , G06T7/90 , G01N21/88
Abstract: 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.
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公开(公告)号：US20230213447A1
公开(公告)日：2023-07-06
申请号：US18121577
申请日：2023-03-14
Applicant: Gemological Institute of America, Inc. (GIA)
Inventor： Hiroshi TAKAHASHI
CPC classification number: G01N21/6456 , G01N33/381 , G01N21/87 , G01N2201/0634 , G01N2021/6471 , G01N2201/062 , G01N2201/068 , G01N2201/12
Abstract: 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.
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公开(公告)号：US20230082604A1
公开(公告)日：2023-03-16
申请号：US17962784
申请日：2022-10-10
Applicant: Gemological Institute of America, Inc. (GIA)
Inventor： Tsung-Han TSAI , Hiroshi TAKAHASHI
Abstract: 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.
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公开(公告)号：US20210302322A1
公开(公告)日：2021-09-30
申请号：US17200706
申请日：2021-03-12
Applicant: Gemological Institute of America, Inc. (GIA)
Inventor： Tsung-Han TSAI , Hiroshi TAKAHASHI
Abstract: 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.
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公开(公告)号：US20240167955A1
公开(公告)日：2024-05-23
申请号：US18420704
申请日：2024-01-23
Applicant: Gemological Institute of America, Inc. (GIA)
Inventor： Hiroshi TAKAHASHI
CPC classification number: G01N21/6456 , G01N21/87 , G01N33/381 , G01N2021/6471 , G01N2201/062 , G01N2201/0634 , G01N2201/068 , G01N2201/12
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US20220196565A1
公开(公告)日：2022-06-23
申请号：US17555241
申请日：2021-12-17
Applicant: Gemological Institute of America, Inc. (GIA)
Inventor： Yun LUO , David NELSON , Troy ARDON , Christopher M. BREEDING , Hiroshi TAKAHASHI
IPC: G01N21/88 , G06V20/69 , G06V10/60 , G06V10/141 , G06T7/13
Abstract: 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.
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公开(公告)号：US20160290930A1
公开(公告)日：2016-10-06
申请号：US14673776
申请日：2015-03-30
Applicant: GEMOLOGICAL INSTITUTE OF AMERICA, INC.
Inventor： Hiroshi TAKAHASHI
CPC classification number: G01N21/87 , G01N21/255 , G01N21/88 , G01N33/381 , G01N2201/061 , G01N2201/0631 , G01N2201/0634 , G01N2201/0638 , G01N2201/065
Abstract: 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.
Abstract translation: 本文提供了一种用于评估宝石的颜色特性的装置。 该装置包括用于支撑要评估的样品宝石的光学不透明平台，用于向宝石提供均匀照明的日光近似光源，图像拍摄部件和远心透镜，定位成将照明宝石的图像提供给 图像捕获组件。 还提供了基于使用这种装置收集的图像进行颜色分析的方法。
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公开(公告)号：US20240102937A1
公开(公告)日：2024-03-28
申请号：US18372026
申请日：2023-09-22
Applicant: Gemological Institute of America, Inc. (GIA)
Inventor： Tsung-Han TSAI , Hiroshi TAKAHASHI , Mehdi TOOSI , Yong LIU
IPC: G01N21/88 , G01N21/958 , G06T7/00 , H04N23/95
CPC classification number: G01N21/8806 , G01N21/8851 , G01N21/958 , G06T7/0002 , H04N23/95 , G01N2021/8812 , G01N2021/8822 , G01N2021/8867 , G01N2201/0633 , G01N2201/0634 , G01N2201/105 , G01N2201/126 , G01N2201/127
Abstract: 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.
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公开(公告)号：US20230243758A1
公开(公告)日：2023-08-03
申请号：US18104224
申请日：2023-01-31
Applicant: Gemological Institute of America, Inc. (GIA)
Inventor： Tsung-Han TSAI , Hiroshi TAKAHASHI , Mehdi TOOSI , Muhammed BAGDIGEN
CPC classification number: G01N21/87 , G01N21/17 , G01N2021/1765 , G01N2201/025 , G01N2201/12723
Abstract: 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.
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公开(公告)号：US20230083053A1
公开(公告)日：2023-03-16
申请号：US17943136
申请日：2022-09-12
Applicant: Gemological Institute of America, Inc. (GIA)
Inventor： Zhen WANG , Benjamin VALLIANT , Hiroshi TAKAHASHI , Mehdi TOOSI
IPC: B23K26/03 , B23K26/08 , B23K26/359
Abstract: 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.
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