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Fingerprint collecting method and high-resolution thin type fingerprint collector

A fingerprint collector and fingerprint collection technology, applied in the direction of instruments, character and pattern recognition, computer components, etc., can solve the problems of small fingerprint collection area and low definition, and achieve large fingerprint image collection area, high definition, small size effect

Inactive Publication Date: 2007-09-12
车全宏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing fingerprint collection methods have the defects of small fingerprint collection area and low definition

Method used

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  • Fingerprint collecting method and high-resolution thin type fingerprint collector
  • Fingerprint collecting method and high-resolution thin type fingerprint collector
  • Fingerprint collecting method and high-resolution thin type fingerprint collector

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing and concrete example for further description:

[0020] The fingerprint collection method of the present invention uses a fingerprint collector made up of a light source, a right-angled trapezoidal prism whose longitudinal section bottom is greater than the height, a lens and a photoelectric detector. On the reflective mirror surface of the oblique waist surface and the black paint layer on the bottom surface of the prism, the fingerprint images on the reflective mirror surface and the black paint layer are projected onto the photoelectric detector through the straight waist surface of the prism and the lens.

[0021] As shown in the figure, the high-definition and thin fingerprint collector of the present invention is composed of a light source 1, a right-angled trapezoidal prism 2 whose longitudinal section bottom is larger than the height, a lens 3 and a photodetector 4, and the lens 3 and the photodetector 4 are arranged ...

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Abstract

The invention relates to a fingerprint collection methods and high-definition thin fingerprint collector, in order to solve the problem of small acquisition and poor definition in existing technology, its method is: the light source is irradiated to the prism bottom through the prism, the fingerprint under the prism bottom reflect to reflection the prism oblique of the lumbar reflection mirror and black-paint layer on the prism bottom, the fingerprint images on reflective mirror and black paint layer project on the photoelectric detector through the back of prism and the projection lens. Collector is composed of the light source, bottom longitudinal cross section of the greater than high right angle trapezoidal prism, lens and photo-electric detector; lens and photo-electric detector configurating in the back-side of prism, the ramp lumbar of prism having a reflector surface, a viewfinder with oblique configuration on the lateral of lens, the photoelectric detector above viewfinder, its characteristic is that the bottom of the prism is painted black, black paint layer and reflector mirror as a reflector surface. The method has the advantages of a biger fingerprint reflector, a greater acquisition area and high definition. Collector of small size, light weight, big area of collected fingerprint image, high clarity, collector and prism to achieve ultra-thin, is convenient to match with mouse, keyboard, door locks, cars, drive, mobile phone and other equipments of space-constrained installation for use.

Description

technical field [0001] The invention relates to a fingerprint image collection technology, in particular to a fingerprint collection method and a high-definition thin fingerprint collection device. Background technique [0002] Currently used fingerprint collectors all have the defects of large size, inconvenient and other equipments. For example, existing fingerprint collectors with large volume and heavy weight are not suitable for use with devices with limited installation space such as mice, keyboards, door locks, automobiles, USB flash drives, and mobile phones. The existing fingerprint collection method has the defects of small fingerprint collection area and low definition. Contents of the invention [0003] The object of the present invention is to overcome the above-mentioned defects of the prior art, and provide a fingerprint collection method with large fingerprint collection area and high definition. The invention also relates to a high-definition thin finger...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/20
CPCG06K9/00046G06V40/1324
Inventor 车全宏
Owner 车全宏
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