作　　者： (马弋喃）; (石斌）; (张峰）; (袁心强）; (林畅伟）;

机构地区： 中国地质大学珠宝学院,湖北武汉430074

出　　处： 《宝石和宝石学杂志》 2017年第4期51-58,共8页

摘　　要： "十心十箭钻石"是由深圳完美爱珠宝首饰有限公司发明的在切工镜下能够呈现十心十箭光学效果的新钻石琢型。该琢型区别于普通的圆明亮琢型在于冠部新增一类小风筝刻面,且整体呈十次对称。采用计算机3D模拟系统对十心十箭钻石进行亮度计算与图案分析,根据系统反馈的两个量化指标:整体亮度返回值(BR)与可视亮光返回值(VBR),分析不同切工比例的钻石亮度分布和呈现理想十心十箭图案的切工条件,并以台宽比为56%的钻石为例,得出在两种光源条件下,存在整体亮度返回值(BR)或可视亮度返回值(VBR)最大且呈现较好十心十箭光学效果的冠角-亭角切工组合。结果显示利用计算机光学模拟十心十箭钻石样品分析钻石切工参数与星箭效果规律的可行性,此方法可以很好地指导十心十箭钻石加工,使钻石展现良好的亮度及光学效果。 The ten hearts-ten arrows diamond cutting is a new round diamond shape which is invented by Allove Jewelry Co. , Ltd, Shenzhen. This exquisite ten fold symmetry cutting is different from traditional round brilliant cut diamond which has a series of small kite facets and making observers see ten hearts and ten arrows pattern through special optical instru-ment. In this paper, a computer 3D simulation system is used to calculate the brightness and analyze patterns of ten hearts-ten arrows diamond. The computer can give two quantitative feedback indicators： Br ightness Return value and Visible Br ightnes s Return value, which present brightness distribution and an ideal ten hearts-ten arrows diamond cut condition. Taking the diamond with 56% table proportion as an example, the authors con-cluded that under two different light sources, the best crown angle-pavilion angle cut combi-nation exists when it shows maximum value of Brightness Return （Bi？） or the maximum val-ue of Visible Brightness Return（VBi？） and it also presents good ten hearts-ten arrows optical effects at the same time. It proves the feasibility of using computer 3D simulation system to analyze the rules between diamond cutting parameters and this special optical effects, which can give introduction to ten hearts-ten arrows diamond processing.

关 键 词： 钻石切工 十心十箭 计算机 模拟 亮度分布