Synthetic colour hologram
    71.
    发明申请
    Synthetic colour hologram 有权
    合成彩色全息图

    公开(公告)号:US20050219668A1

    公开(公告)日:2005-10-06

    申请号:US10515990

    申请日:2003-05-23

    CPC分类号: G03H1/041 G03H1/24 G03H1/26

    摘要: A surface relief hologram that comprises two or more patterns, each pattern being sensitive to different radiation wavelengths. The hologram is made by defining relief features that are sensitive to different wavelengths, and in particular to one wavelength that is visible to the unaided human eye and to one wavelength that is invisible to the unaided human eye. These relief features of different sensitivities are interspersed over the surface of the substrate in which the hologram is defined. By providing two patterns of different sensitivities, when the hologram is used in a security device, security is improved. Despite this improved security, the hologram can be mass manufactured using known techniques.

    摘要翻译: 包括两个或多个图案的表面浮雕全息图,每个图案对不同的辐射波长敏感。 全息图通过定义对不同波长敏感的浮雕特征,特别是对于肉眼看不见的一个波长和对于肉眼看不见的一个波长来制成。 不同灵敏度的这些浮雕特征散布在其中限定全息图的基板的表面上。 通过提供两种不同灵敏度的图案,当全息图在安全装置中使用时,安全性得到改善。 尽管这种改进的安全性,全息图可以使用已知的技术大量制造。

    Test cell for applying directionally variable three dimensional stress
fields to a test specimen
    72.
    发明授权
    Test cell for applying directionally variable three dimensional stress fields to a test specimen 失效
    用于向试样施加定向可变三维应力场的试验单元

    公开(公告)号:US5379645A

    公开(公告)日:1995-01-10

    申请号:US90153

    申请日:1993-07-23

    申请人: Brian G. D. Smart

    发明人: Brian G. D. Smart

    IPC分类号: G01N3/02 G01N3/10 G01N3/08

    CPC分类号: G01N3/10 G01N2203/0256

    摘要: The present invention relates to a test cell 1 suitable for use in applying directionally variable three dimensional stress fields to cylindrical test specimens 6 normally obtained by conventional coring techniques used for sample recovery. The test cell 1 comprises a cell body 2 having a barrel 4 extending therethrough for receiving a test specimen 6. The barrel 4 has an array 8 of elongate tubes 10 mounted side-by-side so as to line the inside wall 12 of the barrel. The tubes 10 have flexible side walls 14 and are formed and arranged for connection to a pressurized fluid supply 16. The test cell 1 also includes a control system 15 so that at least one tube 10a can be supplied with pressurized fluid at a different pressure to that in another tube 10b so as to provide an angularly variable radial pressure loading on the test specimen 6 mounted in the barrel 2.

    摘要翻译: PCT No.PCT / GB92 / 00172 Sec。 371日期:1993年7月23日 102(e)日期1993年7月23日PCT提交1992年1月30日PCT公布。 WO92 / 14131 PCT出版物 日期:1992年8月20日。本发明涉及适用于将定向可变的三维应力场应用于通常用于采样回收的常规取芯技术的圆柱形试样6的试验电池1。 测试单元1包括具有延伸穿过其中的筒体4的单元体2,用于容纳测试样本6.筒体4具有并排安装的细长管10的阵列8,以便将筒体的内壁12 。 管10具有柔性侧壁14,并且形成并布置成用于连接到加压流体供应源16.测试单元1还包括控制系统15,使得至少一个管10a可以以不同的压力供应加压流体 在另一个管10b中,以便在安装在枪管2中的试样6上提供角度可变的径向载荷。