发明名称 AMBIENT LIGHT REJECTION FOR NON-IMAGING CONTACT SENSORS
摘要 A sensor (30, 37, 45, 54, 62, 76, 94, 104) for capturing images of skin topology is provided having a platen (35, 44, 57, 68, 86, 101, 108a) and a one or two-dimensional array of light sensing pixel elements (24, 24a, 121) for receiving light representative of skin topology when skin (22) are present upon the platen. Such sensor being improved by structures, layers, or methods for reducing or blocking ambient light which would hinder the light sensing pixel elements (24, 24a, 121) from sensing the light representative of skin topology. The sensors are non-imaging contact sensors as they have platen (35, 44, 57, 68, 86, 101, 108a) to contact skin (22) to be imaged, and do not require optics, such as lenses for focusing and/or magnification, to enable proper capture of light representative of skin topology on the sensor's light sensing pixel elements (24, 24a, 121).
申请公布号 WO2013071311(A1) 申请公布日期 2013.05.16
申请号 WO2012US64882 申请日期 2012.11.13
申请人 CROSS MATCH TECHNOLOGIES, INC. 发明人 RAGUIN, DANIEL, H.;CARVER, JOHN, F.
分类号 G06K9/00 主分类号 G06K9/00
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