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    • 6. 发明授权
    • Scanners for reading near infrared fluorescent marks
    • 用于阅读近红外荧光标记的扫描仪
    • US5959296A
    • 1999-09-28
    • US880037
    • 1997-06-20
    • Michael John CyrJames John Krutak, Sr.Horst ClaubergRandy Barnett MeadeJames Edward MooreGabor Patonay
    • Michael John CyrJames John Krutak, Sr.Horst ClaubergRandy Barnett MeadeJames Edward MooreGabor Patonay
    • G02B6/38G06K7/12G06K7/10
    • G06K7/12G02B6/3861G02B6/3862G02B6/3887
    • An apparatus for detecting an invisible, near infrared fluorescing mark disposed on a background comprises: includes an excitation source for exciting the mark, having sufficient power to excite the mark and provide a fluorescent signal the mark from a; a signal detector for detecting the fluorescent signal from the mark; a and power modulator means for varying the power if the excitation source between zero and the maximum power level to produce a decodable fluorescent signal from the mark disposed on the background. A process for decoding an invisible mark having a near infrared fluorescing material includes the steps of: providing at least one invisible, near infrared fluorescing mark disposed on at least one portion of a background; exciting the mark with a laser having a maximum power level sufficient to provide a fluorescent signal from the mark; detecting the fluorescent signal and concurrently varying the power of the laser between zero and its maximum power, to obtain a decodable fluorescent signal.
    • 用于检测设置在背景上的不可见的近红外荧光标记的装置包括:包括用于激发标记的激励源,具有足够的功率来激发标记并从a提供标记的荧光信号; 用于从标记检测荧光信号的信号检测器; a和功率调制器装置,用于如果激励源在零和最大功率水平之间改变功率,以从设置在背景上的标记产生可解码的荧光信号。 用于解码具有近红外荧光材料的不可见标记的方法包括以下步骤:提供设置在背景的至少一部分上的至少一个不可见的近红外荧光标记; 使用具有足以提供来自标记的荧光信号的最大功率电平的激光器来激发标记; 检测荧光信号并同时改变激光器在0和最大功率之间的功率,以获得可解码的荧光信号。