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公开(公告)号：EP3080647A1
公开(公告)日：2016-10-19
申请号：EP14806295.3
申请日：2014-12-04
IPC分类号： G02B5/08
CPC分类号： G02B5/0858 , G02B1/02 , G02B5/0891
摘要： A mirror for use in high power optical applications, the mirror comprising: a support plate comprising a synthetic diamond material; and a reflective coating disposed over the support plate, wherein the reflective coating comprises a bonding layer of carbide forming material which bonds the reflective coating to the synthetic diamond material in the support plate, a reflective metal layer disposed over the bonding layer, and one or more layers of dielectric material disposed over the reflective metal layer, wherein the bonding layer and the reflective metal layer together have a total thickness in a range 50 nm to 10 μm with the reflective metal layer having a thickness of no more than 5 μm, and wherein the support plate and the reflective coating are configured such that the mirror has a reflectivity of at least 99% at an operational wavelength of the mirror.
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2.发明公开
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
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.
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