发明名称 Systems, apparatuses and methods for diamond color measurement and analysis
摘要 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. In a preferred embodiment of the system, the daylight-approximating light source illuminates the pavilion side of the diamond through a diffuser. In another preferred embodiment, the light detector detects light which is coming from a rotating diamond.
申请公布号 US6473164(B1) 申请公布日期 2002.10.29
申请号 US20000505981 申请日期 2000.02.16
申请人 GEMOLOGICAL INSTITUTE OF AMERICA, INC. 发明人 DE JONG PETER;GEURTS RONALD
分类号 G01J3/50;G01N21/87;(IPC1-7):G01N21/00 主分类号 G01J3/50
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