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公开(公告)号：US20100150511A1
公开(公告)日：2010-06-17
申请号：US12527382
申请日：2007-02-16
CPC分类号： G02B6/1225 , B82Y20/00 , C08J5/18
摘要： A compressible photonic crystal comprising a polymer with an ordered array of voids, the photonic crystal having a reflectance in a first wavelength range for light incident to its incident surface and its opposing incident surface; wherein compression against at least a portion of at least one of the surfaces shifts the reflectance to a second wavelength range in at least that portion of that surface. The crystal may be used in authentication devices of various types.
摘要翻译： 一种可压缩光子晶体，其包含具有有序空间阵列的聚合物，所述光子晶体对于入射到其入射表面的光和其相对的入射表面具有在第一波长范围内的反射率; 其中针对至少一个表面的至少一部分的压缩将所述反射率在所述表面的至少所述部分中移动到第二波长范围。 该晶体可用于各种认证装置。
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公开(公告)号：US08389927B2
公开(公告)日：2013-03-05
申请号：US12665157
申请日：2008-06-12
CPC分类号： G02B27/0988 , B23K26/066
摘要： An optical arrangement has a laser configured to emit a laser beam, an amplitude mask and a focusing element. The amplitude mask is disposed between the laser and the focusing element in a path of the laser beam such that the laser beam hits the amplitude mask before being modified by the focusing element so as to direct the laser beam to a focal point within a photosensitive material.
摘要翻译： 光学装置具有配置成发射激光束，振幅掩模和聚焦元件的激光器。 振幅掩模在激光束的路径中设置在激光器和聚焦元件之间，使得激光束在被聚焦元件修改之前撞击振幅掩模，以便将激光束引导到感光材料内的焦点 。
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公开(公告)号：US20110192965A1
公开(公告)日：2011-08-11
申请号：US12665157
申请日：2008-06-12
CPC分类号： G02B27/0988 , B23K26/066
摘要： An optical arrangement has a laser configured to emit a laser beam, an amplitude mask and a focusing element. The amplitude mask is disposed between the laser and the focusing element in a path of the laser beam such that the laser beam hits the amplitude mask before being modified by the focusing element so as to direct the laser beam to a focal point within a photosensitive material.
摘要翻译： 光学装置具有配置成发射激光束，振幅掩模和聚焦元件的激光器。 振幅掩模在激光束的路径中设置在激光器和聚焦元件之间，使得激光束在被聚焦元件修改之前撞击振幅掩模，以便将激光束引导到感光材料内的焦点 。
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公开(公告)号：US20100294749A1
公开(公告)日：2010-11-25
申请号：US12744216
申请日：2008-11-20
IPC分类号： B23K26/06
CPC分类号： B23K26/046 , G02B7/32 , G02B21/244 , G02B21/245 , G03F7/70375 , G03F7/70383
摘要： A method for laser beam machining of a workpiece in which a laser beam is focused by an objective, into or onto the workpiece having a boundary surface, to produce a machining effect by a two-photon process, and the position of the focal point with respect to the workpiece is shifted. To obtain a reference for the position of the focal point, an image of a luminating modulation object is projected through the objective onto the workpiece into the focal plane or so as to intersect it. Reflections of the image occurring at the boundary surface are imaged into an autofocus image plane, and are detected by a camera. The camera image plane either intersects the autofocus image plane when the image of the illuminating modulation object lies in the focal plane, or lies in the autofocus image plane when the image of the modulation object intersects the focal plane.
摘要翻译： 一种用于激光束加工的方法，其中激光束被物镜聚焦到具有边界表面的工件中或之上，以通过双光子过程产生加工效果，并且焦点的位置与 相对于工件移动。 为了获得焦点的位置的参考，发光调制对象的图像通过物镜投射到工件上进入焦平面或与之相交。 在边界面发生的图像的反射被成像为自动聚焦图像平面，并且由相机检测。 当照明调制对象的图像位于焦平面时，相机图像平面与自动聚焦图像平面相交，或者当调制对象的图像与焦平面相交时，相机图像平面位于自动聚焦图像平面中。
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