Finger vein collecting device
A finger vein and acquisition device technology, applied in instruments, character and pattern recognition, computer parts and other directions, can solve the problems of poor vein image clarity, excessive automatic exposure, no automatic exposure, etc., to reduce system costs and improve speed. and the effect of recognition accuracy and length reduction
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[0029] The present invention will be described below in conjunction with specific embodiments and with reference to the drawings.
[0030] Kind of like Figure 1~3 The finger vein acquisition device shown includes a housing, a CMOS sensor 2 provided on an image receiving surface under the housing, and a backlight unit 12 provided above the housing.
[0031] The middle of the housing is provided with a finger hole, and the position opposite to the finger hole in the housing is a finger pressing surface. The finger pressing surface is a concave groove as a finger vein collection window. The size of the finger vein collection window is larger than 10.0mm×25.0mm. The collection window is a concave groove, which is convenient for fingers to reach and press, and present the light of collecting finger vein image information on the image receiving surface.
[0032] A finger vein image collector including a circuit control module and an optical system is arranged in the housing.
[0033] The ...
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