Title:
宝石用原石の特性を求めるためのデータを発生する装置ならびに宝石用原石の特性を求める方法およびコンピュータ・プログラム
Document Type and Number:
Japanese Patent JP3987908
Kind Code:
B2
Abstract:
An apparatus for generating data for use in determining a property of a gemstone, such as a cut diamond, the apparatus comprising: a support structure for supporting a gemstone placed at an observation position, the support structure being arranged such that, if the gemstone has an axis of symmetry, the gemstone is supportable such that the axis of symmetry is parallel to an axis X passing through the observation position; illumination means arranged to illuminate a gemstone so placed with a spatially varied light pattern; rotation means arranged to cause relative rotation between the light pattern and the support structure generally about the axis X; a camera arranged to capture, at each of a plurality of rotational positions, an image of light returned by the gemstone and to output said images as image data.
Inventors:
Davalapa
Marc France Arida Funde Verde
Christian lewis cecil kale smeekers
Marc France Arida Funde Verde
Christian lewis cecil kale smeekers
Application Number:
JP2002062896A
Publication Date:
October 10, 2007
Filing Date:
March 08, 2002
Export Citation:
Assignee:
Overseas Diamonds Technologies
International Classes:
G01N21/87; G01N33/38; G02B27/00
Domestic Patent References:
| JP2001201454A | ||||
| JP4065658A | ||||
| JP6213818A | ||||
| JP63118639A | ||||
| JP2002516992A |
Attorney, Agent or Firm:
Masao Okabe
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Asahi Shinmitsu
Katsumi Miyama
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Asahi Shinmitsu
Katsumi Miyama