公开(公告)号：EP3004432A1

公开(公告)日：2016-04-13

申请号：EP14729635.4

申请日：2014-06-04

申请人： Element Six Technologies Limited ,  Element Six N.V.

发明人： PELS, Gerrit ,  DE WIT, Hendrikus Gerardus Maria ,  MCCLYMONT, Mark Robin

IPC分类号： C30B29/04 ,  C30B33/04 ,  C30B33/08 ,  C30B33/00

CPC分类号： C30B25/16 ,  B24B49/10 ,  B26D5/007 ,  C30B29/04 ,  C30B33/00 ,  C30B33/04 ,  C30B33/08

摘要： A method of processing a super-hard material having a Vickers hardness of no less than 2000 kg/mm2, the method comprising: (a) forming a surface of the super-hard material to have a first surface profile within a first root mean square deviation from a smooth target surface profile, said first root mean square deviation being no more than 5 μm; (b) analysing said surface of the super-hard material to detect a plurality of protruding regions on said surface; and (c) selectively processing over only the protruding regions on the surface of the super-hard material to form a second surface profile within a second root mean square deviation from the smooth target surface profile, said second root mean square deviation being no more than 100 nm.

公开(公告)号：EP2965131A1

公开(公告)日：2016-01-13

申请号：EP14708018.8

申请日：2014-03-04

申请人： Element Six Technologies Limited

发明人： TWITCHEN, Daniel ,  BENNETT, Andrew Michael ,  ANOIKIN, Yevgeny Vasilievich ,  DE WIT, Hendrikus Gerardus Maria

IPC分类号： G02B1/11 ,  G02B1/02

CPC分类号： G02B1/02 ,  G02B1/118

摘要： An optical element comprising: synthetic diamond material; and an anti-reflective surface pattern formed directly in at least one surface of the synthetic diamond material, wherein the optical element has an absorption coefficient measured at room temperature of ≤ 0.5 cm
-1 at a wavelength of 10.6 µm, wherein the optical element has a reflectance at said at least one surface of no more than 2% at an operating wavelength of the optical element, and wherein the optical element has a laser induced damage threshold meeting one or both of the following characteristics: the laser induced damage threshold is at least 30 Jcm
-2 measured using a pulsed laser at a wavelength of 10.6 µm with a pulse duration of 100 ns and a pulse repetition frequency in a range 1 to 10 Hz; and the laser induced damage threshold is at least 1 MW/cm
2 measured using a continuous wave laser at a wavelength of 10.6 µm.

公开(公告)号：EP2965130A1

公开(公告)日：2016-01-13

申请号：EP14708020.4

申请日：2014-03-04

申请人： Element Six Technologies Limited

发明人： TWITCHEN, Daniel ,  BENNETT, Andrew Michael ,  ANOIKIN, Yevgeny Vasilievich ,  DE WIT, Hendrikus Gerardus Maria

IPC分类号： G02B1/02 ,  G02B5/18 ,  C30B25/02 ,  C30B29/04

CPC分类号： G02B1/02 ,  C30B25/02 ,  C30B29/04 ,  G02B3/04 ,  G02B3/08 ,  G02B5/1876

摘要： An optical element comprising: synthetic diamond material; and a flattened lens surface structure in the form of a zone plate, Fresnel lens, or a spherical lens formed directly in at least one surface of the synthetic diamond material, wherein the synthetic diamond material has an absorption coefficient measured at room temperature of ≦̸0.5 cm−1 at a wavelength of 10.6 μm, and wherein the synthetic diamond material has a laser induced damage threshold meeting one or both of the following characteristics: the laser induced damage threshold is at least 30 Jcm−2 measured using a pulsed laser at a wavelength of 10.6 μm with a pulse duration of 100 ns and a pulse repetition frequency in a range 1 to 10 Hz; and the laser induced damage threshold is at least 1 MW/cm2 measured using a continuous wave laser at a wavelength of 10.6 μm.

摘要翻译： 一种光学元件，包括：合成金刚石材料; 以及直接形成在人造金刚石材料的至少一个表面上的波带片，菲涅耳透镜或球面透镜形式的平坦透镜表面结构，其中人造金刚石材料具有在室温下测得的吸收系数≤0.5 cm -1，并且其中人造金刚石材料具有满足以下特征中的一个或两个的激光诱导损伤阈值：激光诱导损伤阈值为至少30Jcm -2，其使用脉冲激光在 波长10.6μm，脉冲持续时间100ns，脉冲重复频率1〜10Hz; 并且使用连续波激光器在10.6μm的波长处测量的激光诱导损伤阈值为至少1MW / cm 2。