Systems, apparatuses and methods for diamond color...

G - Physics – 01 – N

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G01N 21/87 (2006.01)

Patent

CA 2399222

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 (10), such as daylight approximating fluorescent tubes or halogen lamp boosted with a filter to approximate daylight, and a light detector which 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 (10) that illuminates the pavilion side of the diamond (40), a light detector (30) which detects light coming out at a specific angle from the pavilion side of the diamond (40), and an optical measurement device which measures the light detected by the light detector (30).

L'invention concerne des systèmes, des appareils et des procédés destinés à mesurer et à analyser la couleur de gemme d'une façon qui simule, de manière fiable et consistante, une procédure d'analyse visuelle de la couleur. La réalisation du système préféré de l'invention comprend plusieurs aspects, incluant l'utilisation de lampes (10) approchant la lumière diurne, telles que des tubes fluorescents ou des lampes à halogène assistés d'un filtre afin d'approcher la lumière diurne, et un détecteur de rayonnement lumineux dirigeant la lumière selon un angle spécifique tel que le système se rapproche d'une procédure d'analyse visuelle. Dans le cas d'analyse de diamant, le système de l'invention comprend, dans une réalisation, trois éléments majeurs: une source de rayonnement lumineux (10) approchant la lumière diurne et illuminant le côté pavillon du diamant (40), un détecteur de lumière (30) détectant le rayonnement lumineux sortant sous un angle spécifique du côté pavillon du diamant (40), et un dispositif de mesure optique destiné à mesurer le rayonnement lumineux capté par le détecteur (30).

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