Fingerprint developer

Abstract

The invention relates to a fingerprint developer which comprises a shell. A storage used for storing fingerprint information is mounted inside the shell, and a developing cavity is arranged inside the shell and is filled with colloid; the top surface of the developing cavity is slidably sealed by a piston plate, and the piston plate can be lifted under the control of a micro-motor; the bottom surfaced of the developing cavity is sealed by a control panel, and flow guide tubes are equidistantly arrayed on the control panel and are communicated with the developing cavity; control switches are arranged on the various flow guide tubes, a central controller is further arranged on the shell, and the various control switches can be turned on and off under the control of the central controller; a transparent sealing plate is arranged below the control panel; the central controller is electrically connected with the storage; the central controller, the storage and the micro-motor are powered by storage batteries. The fingerprint developer has the advantages that the fingerprint developer is novel and unique in principle and low in cost, fingerprint patterns can be stored and reproduced, and the work efficiency can be improved while the safety is not deteriorated.

Description

technical field [0001] The invention relates to an encrypted security electronic product, in particular to a fingerprint developing device. Background technique [0002] The textures produced by the uneven skin on the surface of our fingers form various patterns, and these skin textures are different in patterns, breakpoints and intersections, that is to say, they are unique; relying on this uniqueness, we You can match a person with his fingerprint, and verify his real identity by comparing his fingerprint with the pre-saved fingerprint; now this biometric technology is widely used in confidentiality, security and other places. Commonly used fingerprint imaging equipment includes an optical sensor, which distinguishes the ridges and valleys on the fingerprint by scanning the intensity of the reflected light reflected from the fingerprint surface, and then realizes fingerprint imaging and identification; however, in practice In the process of using, there are also many in...

AI Technical Summary

Problems solved by technology

[0002] The textures produced by the uneven skin on the surface of our fingers form various patterns, and these skin textures are different in patterns, breakpoints and intersections, that is to say, they are unique; relying on this uniqueness, we You can match a person with his fingerprint, and verify his real identity by comparing his fingerprint with the pre-saved fingerprint; now this biometric technology is widely used in confidentiality, security and other places. Commonly used fingerprint imaging equipment includes an optical sensor, which distinguishes the ridges and valleys on the fingerprint by scanning the intensity of the reflected light reflected from the fingerprint surface, and then realizes fingerprint imaging and identification; however, in practice In the process of using, there are also many inconveniences, such as fingerprints can only be carried by himself, and when he is at a loss, his assistant cannot help him share the work

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