公开(公告)号：EP4397964A3

公开(公告)日：2024-08-07

申请号：EP24175514.9

申请日：2019-03-04

申请人： Australian National University

发明人： FLEDDERMAN, Roland ,  CHOW, Jong Hann ,  SHEPPARD, Adrian Paul ,  SENDEN, Timothy John ,  LATHAM, Shane Jamie ,  HUANG, Keshu

IPC分类号： G01N21/87 ,  G01N21/88 ,  G01B11/24 ,  G01N21/47 ,  G01N23/046 ,  G01B9/02015 ,  G01B9/02 ,  G01B9/02091 ,  G01B15/04 ,  G01N33/00

CPC分类号： G01N21/87 ,  G01N23/046 ,  G01N21/4795 ,  G01N2223/65220130101 ,  G01B9/02091 ,  G01B9/02031 ,  G01B9/0203 ,  G01B15/045 ,  G01B9/02087 ,  G01N33/389

摘要： A method and system for determining a location of artefacts and/or inclusions in a gemstone, mineral or sample thereof, the method comprising the steps of: surface mapping a gemstone, mineral or sample thereof to determine surface geometry associated with at least a portion of a surface of the gemstone, mineral or sample thereof; sub-surface mapping the gemstone, mineral or sample thereof using an optical beam that is directed at the surface along an optical beam path, wherein the optical beam is generated by an optical source using an optical tomography process; determining a surface normal at the surface at an intersection point between the optical beam path and the determined surface geometry; determining relative positioning between the surface normal and the optical beam path; and determining the location of artefacts and/or inclusions in the gemstone, mineral or sample thereof based on the sub-surface mapping step and the determined relative positioning.

公开(公告)号：EP4397964A2

公开(公告)日：2024-07-10

申请号：EP24175514.9

申请日：2019-03-04

申请人： Australian National University

发明人： FLEDDERMAN, Roland ,  CHOW, Jong Hann ,  SHEPPARD, Adrian Paul ,  SENDEN, Timothy John ,  LATHAM, Shane Jamie ,  HUANG, Keshu

IPC分类号： G01N21/88

CPC分类号： G01N21/87 ,  G01N23/046 ,  G01N21/4795 ,  G01N2223/65220130101 ,  G01B9/02091 ,  G01B9/02031 ,  G01B9/0203 ,  G01B15/045 ,  G01B9/02087 ,  G01N33/389

摘要： A method and system for determining a location of artefacts and/or inclusions in a gemstone, mineral or sample thereof, the method comprising the steps of: surface mapping a gemstone, mineral or sample thereof to determine surface geometry associated with at least a portion of a surface of the gemstone, mineral or sample thereof; sub-surface mapping the gemstone, mineral or sample thereof using an optical beam that is directed at the surface along an optical beam path, wherein the optical beam is generated by an optical source using an optical tomography process; determining a surface normal at the surface at an intersection point between the optical beam path and the determined surface geometry; determining relative positioning between the surface normal and the optical beam path; and determining the location of artefacts and/or inclusions in the gemstone, mineral or sample thereof based on the sub-surface mapping step and the determined relative positioning.

公开(公告)号：EP3759471A1

公开(公告)日：2021-01-06

申请号：EP19760951.4

申请日：2019-03-04

申请人： The Australian National University

发明人： FLEDDERMANN, Roland ,  CHOW, Jong Hann ,  SHEPPARD, Adrian Paul ,  SENDEN, Timothy John ,  LATHAM, Shane Jamie ,  HUANG, Keshu

IPC分类号： G01N21/87 ,  G01N21/88