| 圆明亮琢型的星刻面和上、下腰刻面倾角数值计算 |
| |
| 引用本文： | 石斌,袁心强.圆明亮琢型的星刻面和上、下腰刻面倾角数值计算[J].地质科学译丛,2010(4):40-47. |
| |
| 作者姓名： | 石斌 袁心强 |
| |
| 作者单位： | 中国地质大学珠宝学院。湖北武汉430074 |
| |
| 摘 要： | 精确计算星刻面、上腰刻面和下腰刻面的倾角是圆明亮琢型宝石加工的重要问题。通过几何分析与计算,分析了冠角、台宽比、星刻面长度比、下腰刻面长度比和亭角对星刻面倾角、上腰刻面倾角和下腰刻面倾角的影响,获得了较精确的星刻面倾角、上腰刻面倾角和下腰刻面倾角的线性拟合计算方法及相应的参数。
|
| 关 键 词： | 钻石 加工 圆明亮琢型 星刻面 上腰刻面 下腰刻面 |
Numerical Method on Inclination of Star Facet,Upper and Lower Girdle Facets of Round Brilliant Cut |
| |
| Authors: | SHI Bin YUAN Xin-qiang |
| |
| Institution: | (Gemmological Institute,China University of Geosciences,Wuhan 430074,China) |
| |
| Abstract: | It is quite important for calculating precisely inclination of star facet,upper girdle and lower girdle facets during gem processing. The numerical relations between the inclination of star facet,upper and lower girdle facets and cut parameters including crown angle,table proportion,star facet length proportion,lower girdle facet length proportion and pavilion angle are analysed and calculated by the geometry method,abtaining the precise calculating methods and parameters. |
| |
| Keywords: | diamond cut round brilliant cut star facet upper girdle facet lower girdle facet |
| 本文献已被 维普 等数据库收录！ |
|
