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    • 1. 发明申请
    • UNIVERSAL OPTICAL KEY AND LOCK SYSTEM AND METHOD TO INITIATE A SECURITY FUNCTION
    • 通用光学钥匙和锁定系统及其启动安全功能的方法
    • WO2009063362A1
    • 2009-05-22
    • PCT/IB2008/054631
    • 2008-11-06
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.DUNIAS, Paraskevas
    • DUNIAS, Paraskevas
    • G07C9/00E05B49/00
    • G07C9/00174E05B49/006G07C9/00896G07C2009/00785
    • Proposed is a security system(1), comprising a first member (10) and a second member (20). The first member comprises a coding surface (11) with embedded coding information. The second member (20) is capable to cooperate with the first member, and comprises a laser diode (30) having a laser cavity (31) for generating laser radiation to illuminate the coding surface (11). Furthermore, the second member comprises a detector 5 (40) arranged to initiate a security function. The security systemis characterised in that the detector (40) is arranged to initiate the security function in responds to a measurement of a variation (35) in an operational characteristic of the laser cavity (31), the variation comprising the coding information and being due to the self-mixing effect of an optical wave (36) in the laser cavity (31) and back-reflected radiation (38) re-entering the laser cavity (31) 10 after reflection from the coding surface (11). Such a security systemcan in particular be used as a lock and key combination to prevent theft of valuable items from anenclosure.
    • 提出了一种安全系统(1),包括第一部件(10)和第二部件(20)。 第一成员包括具有嵌入编码信息的编码表面(11)。 第二构件(20)能够与第一构件配合,并且包括具有用于产生激光辐射以照亮编码表面(11)的激光腔(31)的激光二极管(30)。 此外,第二构件包括布置成发起安全功能的检测器5(40)。 安全系统的特征在于,检测器(40)被布置成响应于激光腔(31)的操作特性中的变化(35)的测量来启动安全功能,该变化包括编码信息并且正在到期 涉及激光腔(31)中的光波(36)和从编码表面(11)反射之后重新进入激光腔(31)10的反射辐射(38)的自混合效果。 这样的安全系统特别可以用作锁和钥匙组合,以防止有价值的物品被盗用。