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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
发明人： Hiroshi TAKAHASHI
CPC分类号： G01N21/87 , G01N21/255 , G01N33/381 , G06T7/90 , G01N21/88
摘要： 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：US11921051B2
公开(公告)日：2024-03-05
申请号：US17670411
申请日：2022-02-11
发明人： Hiroshi Takahashi
CPC分类号： G01N21/87 , G01N21/255 , G01N33/381 , G06T7/90 , G01N21/88 , G01N2201/061 , G01N2201/0631 , G01N2201/0634 , G01N2201/0638 , G01N2201/065
摘要： 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：US11879842B2
公开(公告)日：2024-01-23
申请号：US17332513
申请日：2021-05-27
发明人： Tsung-Han Tsai
CPC分类号： G01N21/6456 , G01N33/381 , G02B27/1013 , G02B27/141 , G02B27/145 , G06T7/90 , G01N2201/061 , G01N2201/062 , G06T2207/10024 , G06T2207/10064
摘要： 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.
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公开(公告)号：US11815465B2
公开(公告)日：2023-11-14
申请号：US16393032
申请日：2019-04-24
发明人： Venkat K. Balagurusamy , Brian Pear , Edward J. Maggiacomo , Thomas Picunko , Joseph Ligman , Donna N. Eng Dillenberger
CPC分类号： G01N21/87 , G06T7/0004 , H04N23/55 , H04N23/56 , G01N2201/0221
摘要： 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.
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公开(公告)号：US11754506B2
公开(公告)日：2023-09-12
申请号：US17962784
申请日：2022-10-10
发明人： Tsung-Han Tsai , Hiroshi Takahashi
CPC分类号： G01N21/87 , G01J3/2823 , G01N21/65 , G01J2003/2836 , G01N2021/656
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.
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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
发明人： Hiroshi TAKAHASHI
CPC分类号： G01N21/6456 , G01N33/381 , G01N21/87 , G01N2201/0634 , G01N2021/6471 , G01N2201/062 , G01N2201/068 , G01N2201/12
摘要： 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
发明人： Tsung-Han TSAI , Hiroshi TAKAHASHI
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.
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公开(公告)号：US11562473B2
公开(公告)日：2023-01-24
申请号：US17103737
申请日：2020-11-24
发明人： Marc Verboven , Troy Blodgett , Dirk Nuyts
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.
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公开(公告)号：US20220252520A1
公开(公告)日：2022-08-11
申请号：US17731752
申请日：2022-04-28
发明人： Tsung-Han TSAI , Wuyi WANG
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.
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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
发明人： Tsung-Han TSAI , Hiroshi TAKAHASHI
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.
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