| 摘要 |
PURPOSE: A fingerprint recognition device for a car door locker is provided to improve a complex resolution process capacity and prevent the danger of a car loss by removing fingerprint traces. CONSTITUTION: A photosensor(3) includes a light emitting diode which is arranged therein as a light source. A plane mirror(4) reflects a fingerprint of a recognized finger. A first mirror(5) performs a total reflection of an incident angle of the fingerprint of a recognized finger greater than 40 degree. A lens(6) includes a diaphragm for focusing the fingerprint of a finger reflected by the first mirror(5). A second mirror(8) is installed adjacent to the lens(6) not to reflect less than 40 degree of the fingerprint of the finger passed through the lens(6). An image sensor(9) senses the fingerprint of the finger reflected by the second mirror(8).
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