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    • 8. 发明授权
    • Optical device for biometric capture by contact and system using said device
    • 用于通过接触和使用所述装置的系统进行生物特征捕获的光学装置
    • US07576843B2
    • 2009-08-18
    • US11571095
    • 2005-06-22
    • Matthieu RougetLaurent LambertJean-Christophe Fondeur
    • Matthieu RougetLaurent LambertJean-Christophe Fondeur
    • G06K9/74
    • G06K9/00114G06K9/00046G06K9/0012
    • An optical device for biometric sensing by contact, comprising: an optical element (2) having a face (3) constituting a surface for apposition of a body part from which a biometric characteristic is to be sensed; a radiation source (6) for illuminating the face (3) of the optical element; and sensor means (9) for picking up the radiation coming from the face (3); the face (3) is coated in a thin layer defining a pattern and made of a material such that in association with the material constituting the optical element, the layer is transparent in the presence of radiation emitted by the radiation source (6) when a body part is placed on the face (3) and is significantly less transparent in the presence of external parasitic radiation (13) that is inclined relative to the face (3); whereby the image received by the sensor means can be distinguished depending on whether it is real or latent.
    • 一种用于通过接触进行生物测量感测的光学装置,包括:光学元件(2),其具有构成用于与要感测生物特征的身体部位相对的表面的面部(3) 用于照亮光学元件的表面(3)的辐射源(6); 以及用于拾取来自面部(3)的辐射的传感器装置(9); 表面(3)被涂覆在限定图案的薄层中,并由材料制成,使得与构成光学元件的材料相关联,该层在辐射源(6)发射的辐射的存在下是透明的,当a 在相对于面(3)倾斜的外部寄生辐射(13)的存在下,身体部分被放置在面部(3)上并且显着更少的透明度; 由此可以根据传感器装置接收的图像是真实的还是潜在的来区分图像。