AUTHENTICATION SYSTEM, DATA DEVICE, AND METHODS FOR USING THE SAME
    51.
    发明申请
    AUTHENTICATION SYSTEM, DATA DEVICE, AND METHODS FOR USING THE SAME 有权
    认证系统,数据设备及其使用方法

    公开(公告)号:US20050236481A1

    公开(公告)日:2005-10-27

    申请号:US10709208

    申请日:2004-04-21

    摘要: An authentication system may comprise: a first light source, a second light source, and at least three optically filtered light sensing devices for detecting analog emission intensity in a spectral sensitivity range, wherein each light sensing device is in operable communication with the first light source and/or the second light source. The first light source can have a first light source spectral distribution and can be capable of providing sufficient excitation to produce a photoluminescent emission from a medium comprising a luminescent tag and a color. The second light source can have a visible multi-wavelength spectral distribution and can be capable of providing sufficient visible multi-wavelength illumination of the medium to generate a second analog response, wherein the second analog response is different from the photoluminescent emission. Each light sensing device can have a different device spectral sensitivity range which includes at least a portion of the visible multi-wavelength spectral distribution, with the device spectral sensitivity range of at least one of the light sensing devices including at least a portion of a desired photoluminescent emission wavelength range.

    摘要翻译: 认证系统可以包括:第一光源,第二光源和用于检测光谱灵敏度范围中的模拟发射强度的至少三个光学滤波光感测装置,其中每个光感测装置与第一光源可操作地连通 和/或第二光源。 第一光源可以具有第一光源光谱分布,并且能够提供足够的激发以从包含发光标签和颜色的介质产生光致发光发射。 第二光源可以具有可见的多波长光谱分布,并且能够提供媒介的足够的可见多波长照明以产生第二模拟响应,其中第二模拟响应不同于光致发光发射。 每个光感测装置可以具有不同的装置光谱灵敏度范围,该范围包括可见多波长光谱分布的至少一部分,其中至少一个光感测装置的装置光谱灵敏度范围包括至少一部分期望的 光致发光波长范围。