| Original document(33 pages) 中文版 |
The present invention comprises systems, apparatuses and methods for measuring and analyzing gem color in a way which reliably and consistently simulates visual color analysis methodology. The preferred system embodiment of the present invention comprises several aspects, including the use of daylight approximating lamps, such as daylight-approximating fluorescent tubes or halogen lamp boosted with a filter to approximate daylight, and a light detector which directs light of a specific angle such that the system approximates visual analysis methodology. In the case of diamond analysis, in one embodiment, the system of the invention includes three major elements: a daylight-approximating light source that illuminates the pavilion side of the diamond, a light detector which detects light coming out at a specific angle from the pavilion side of the diamond, and an optical measurement device which measures the light detected by the light detector. |
Application Number
申请号 |
01804742 |
Application Date
申请日 |
2001.02.06 |
| Title 名称 |
Systems, appts. and methods for diamond color measurement and analysis |
Publication Number
公开号 |
1398346 |
Publication Date
公开日 |
2003.02.19 |
| Approval Pub. Date |
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Granted Pub. Date |
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| International Classification 分类号 |
G01N21/00;G01N21/25 |
Applicant(s) Name
申请人 |
Gemological Inst of America, Inc |
| Address 地址 |
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| Inventor(s) Name 发明人 |
P. De Jong;R. Geurts |
| Attorney & Agent 代理人 |
zhao rongmin |
| More information 更 多 信 息 |
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