Finger vein image acquisition and recognition device

The utility model discloses a finger vein image acquisition and recognition device which belongs to the technical field of biological characteristic recognition and consists of a device shell, a signal processing circuit, a finger placing device, an inductive switch, an infrared light supply, an infrared camera, an infrared light supply intensity control circuit, a verification result indicator light, a keyboard, a keyboard control panel, a display screen, a power interface, an external interface and an equipment starting switch. The device has vein image acquisition and recognition functions; a finger vein acquisition part adopts the design technique of automatically adjusting the infrared light supply intensity according to the quality of an acquired vein image; and the inductive switch is installed at the front part of a finger locating slot and is used for transmitting a signal indicating whether image acquisition is started to the signal processing circuit.