公开(公告)号：US11746436B2

公开(公告)日：2023-09-05

申请号：US14426727

申请日：2013-09-13

Applicant: Element Six Technologies Limited

Inventor： Harpreet Kaur Dhillon ,  Ian Friel ,  Daniel James Twitchen ,  Sarah Louise Geoghegan ,  Helen Jennifer Gallon ,  Neil Perkins ,  Philip Maurice Martineau

IPC: C30B29/04 ,  C30B25/16 ,  C30B25/02

CPC classification number: C30B29/04 ,  C30B25/02 ,  C30B25/165 ,  Y10T428/2495 ,  Y10T428/24942 ,  Y10T428/26

Abstract: A coloured single crystal CVD synthetic diamond material comprising: a plurality of layers, wherein the plurality of layers includes at least two sets of layers which differ in terms of their defect composition and colour, wherein defect type, defect concentration, and layer thickness for each of the at least two sets of layers is such that if the coloured single crystal CVD diamond material is fabricated into a round brilliant cut diamond comprising a table and a culet, and having a table to culet depth greater than 1 mm, the round brilliant cut diamond comprises a uniform colour as viewed by naked human eye under standard ambient viewing conditions in at least a direction through the table to the culet.

公开(公告)号：US20150240382A1

公开(公告)日：2015-08-27

申请号：US14426727

申请日：2013-09-13

Applicant: ELEMENT SIX TECHNOLOGIES LIMITED

Inventor： Harpreet Kaur Dhillon ,  Ian Friel ,  Daniel James Twitchen ,  Sarah Louise Geoghegan ,  Helen Jennifer Gallon ,  Neil Perkins ,  Philip Maurice Martineau

IPC: C30B29/04 ,  C30B25/16

CPC classification number: C30B29/04 ,  C30B25/02 ,  C30B25/165 ,  Y10T428/24942 ,  Y10T428/2495 ,  Y10T428/26

Abstract: A coloured single crystal CVD synthetic diamond material comprising: a plurality of layers, wherein the plurality of layers includes at least two sets of layers which differ in terms of their defect composition and colour, wherein defect type, defect concentration, and layer thickness for each of the at least two sets of layers is such that if the coloured single crystal CVD diamond material is fabricated into a round brilliant cut diamond comprising a table and a culet, and having a table to culet depth greater than 1 mm, the round brilliant cut diamond comprises a uniform colour as viewed by naked human eye under standard ambient viewing conditions in at least a direction through the table to the culet.

Abstract translation: 一种着色的单晶CVD合成金刚石材料，包括：多个层，其中所述多个层包括至少两组在其缺陷组成和颜色方面不同的层，其中每个层的缺陷类型，缺陷浓度和层厚度 所述至少两组层是这样的，即如果着色的单晶CVD金刚石材料制成圆形明亮的切割金刚石，其包括台和底部，并且具有大于1mm的底部深度的台面，则圆形切割 金刚石在标准环境观察条件下至少在通过工作台至底部的方向上由裸眼观察到均匀的颜色。