利用仿真模拟软件解析钻石的八心八箭形成原因  

Analysis of Formation Reason of Arrows and Hearts Effect of Diamond by Using Simulation Software

作　　者：万晓昌 袁心强[1] 翟少华 吴倩倩[1] 许中天 WAN Xiaochang;YUAN Xinqiang;ZHAI Shaohua;WU Qianqian;XU Zhongtian(Gemmological Institute,China University of Geosciences,Wuhan 430074,China;Guangdong Provincial Gem&Precious Metal Testing Center,Guangzhou 510080,China;Jiangsu Gold Jewelry Testing Center,Nanjing 210016,China)

机构地区：[1]中国地质大学珠宝学院,湖北武汉430074 [2]广东省珠宝玉石及贵金属检测中心,广东广州510080 [3]江苏省黄金珠宝检测中心,江苏南京210000

出　　处：《宝石和宝石学杂志》2020年第5期57-64,共8页Journal of Gems & Gemmology

基　　金：中国地质大学(武汉)珠宝检测技术创新中心项目,文章编号CIGTWZ-2020020。

摘　　要：钻石的八心八箭效果已被广大消费者接受,但其形成原因比较复杂,相关文献较少,而网络上众说纷纭。本文主要通过宝石琢型绘制软件(GemCad)和仿真模拟软件(DiamCalc)的联合使用,模拟真实钻石的光学效果,通过钻石实物拍摄验证模拟光学效果的准确性,利用不同琢型的绘制以及其光学效果的模拟,解构钻石的八心八箭图像,从而解析其八心八箭效果的形成原因。结果表明,八心八箭的形成原因与前人所提出的论断有所不同,尤其是心的形成,不是冠部主刻面的反射,而是亭部主刻面的反射组合,此外,不同的刻面对心和箭的影响也有所不同。利用琢型绘制软件(GemCad)和仿真模拟软件(DiamCalc)联合使用进行琢型绘制并对钻石光学效果进行模拟的方法,在八心八箭分级以及钻石琢型的设计领域有一定的借鉴意义。The eight hearts and eight arrows effect of diamond has been accepted by the majority of consumers,but its formation reason is complex and lack of relevant literature,which causes different opinions on the Internet.This paper mainly uses GemCad,a Gemstone drawing software,and DiamCalc,a simulation software,to simulate the optical effects of real diamonds and verify the accuracy of the simulated optical effects through physical diamond photography.Using the drawing of different shapes and the simulation of the optical effects of the drawn shapes,the images of the eight hearts and eight arrows of the diamonds are deconstructed to explain the formation of the eight hearts and eight arrows effect of diamond.The results show that the cause of the formation of the eight hearts and eight arrows is different from that put forward by predecessors.In particular,the formation of the hearts is not the reflection of the main facets of the crown mentioned by predecessors,but the reflection combination of the main facets of the pavilion.In addition,the influence of different facets on the hearts and arrows is also different,all of which is explained in this paper.The method proposed in this paper that uses GemCad and DiamCalc to model and simulate the optical effects of diamonds,also has some reference significance in the field of design of eight hearts and eight arrows diamonds.

关 键 词：八心八箭 仿真模拟 钻石 光学效果 琢型 

分 类 号：TS93[轻工技术与工程]