CN200990093Y - Fingerprints collector - Google Patents
Fingerprints collector Download PDFInfo
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- CN200990093Y CN200990093Y CN 200620145339 CN200620145339U CN200990093Y CN 200990093 Y CN200990093 Y CN 200990093Y CN 200620145339 CN200620145339 CN 200620145339 CN 200620145339 U CN200620145339 U CN 200620145339U CN 200990093 Y CN200990093 Y CN 200990093Y
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- fingerprint
- light source
- fingerprint image
- acquisition
- imaging
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Abstract
A fingerprint collecting device mainly achieves the purposes of reducing the manufacturing cost of the fingerprint collecting device and decreasing the volume. The adopted technic proposal is that a fingerprint image acquisition system comprises a quadrilateral prism, a light source and a fingerprint image imaging part; a fingerprint acquisition surface is arranged at one edge of the quadrilateral prism; a light source irradiation surface is adjacent to the fingerprint acquisition surface; an imaging acquisition surface is corresponding to the light source irradiation surface; the light source is arranged at the position of the light source irradiation surface; a fingerprint acquisition part is arranged at the position of the imaging surface. The utility model has the advantages of that the manufacturing cost is low, the optical distortion of the collected fingerprint image is small, the fingerprint image is accurate, the consistency of the fingerprint image is good, the fingerprint image is clear, etc. The utility model is especially suitable for being used in the fingerprint identification system of the bank and the fingerprint identification acquisition device that has requirements to the volume.
Description
Affiliated technical field
The present invention relates to a kind of fingerprint acquisition device, particularly relate to a kind of by gather the fingerprint acquisition device of fingerprint by optical imagery camera lens and imageing sensor imaging.
Background technology
In the prior art, by the imaging of imaging fiber plate, the technical scheme by imageing sensor is gathered fingerprint image is widely used in various fingerprint collectings, on the input media.In the prior art, the imaging fiber plate imaging manufacturing cost height that uses in the various fingerprint acquisition devices, volume is big, how to reduce the manufacturing cost of fingerprint acquisition device, reducing volume, keep the error of fingerprint image acquisition consistance and fingerprint image, is industry technical matters anxious to be solved.
Goal of the invention
For overcoming in the prior art, the fingerprint acquisition device volume is big, the manufacturing cost height, and the technological deficiency of consistance difference, the utility model designs a kind of cheap for manufacturing cost, and volume is little, keeps fingerprint image acquisition consistance and the little fingerprint acquisition device of fingerprint image error.
The technical scheme that the present invention solves its technical matters employing is: fingerprint acquisition device, comprise imaging mirror, light source and fingerprint image acquisition part, the imaging mirror is a quadrant prism, one side of quadrant prism is the fingerprint collecting face, with fingerprint collecting face adjacent surface be the light source irradiation face, with light source irradiation face corresponding surface be imaging surface, light source is arranged on light source irradiation face position, fingerprint image acquisition partly is arranged on the imaging surface position.Quadrant prism is an optical glass.Fingerprint image acquisition partly is optical imagery camera lens and CMOS or ccd image sensor.
The invention has the beneficial effects as follows: the utlity model has at the bottom of the manufacturing cost, the fingerprint image optical distortion of collection is little, and fingerprint image is accurate, fingerprint image high conformity, advantage such as fingerprint image is clear.
Below in conjunction with accompanying drawing the utility model is described in detail.
Description of drawings.
Accompanying drawing 1 is the embodiment of the invention 1 structural representation.
Accompanying drawing 2 is the embodiment of the invention 2 structural representations.
1 quadrant prism in the accompanying drawing, 2 light sources, 3 optical imagery camera lenses, 4CMOS or ccd image sensor.
Embodiment
Referring to accompanying drawing 1, fingerprint acquisition device, comprise image formation prism, light source and fingerprint image acquisition part, Collection prism is a quadrant prism 1, one side of quadrant prism 1 is the fingerprint collecting face, with fingerprint collecting face adjacent surface be the light source irradiation face, with light source irradiation face corresponding surface for adopting image planes, light source 2 is arranged on light source irradiation face position, and fingerprint image acquisition partly is arranged on adopts the image planes position.
During use, the finger of being gathered fingerprint contacts with the fingerprint collecting face that quadrilateral is adopted picture prism 1, under the light action that light source 2 sends, the fingerprint image of the finger of being gathered is partly gathered by fingerprint collecting through the catadioptric image planes of adopting that are mapped to quadrant prism 1 of quadrant prism 1.
The quadrant prism 1 that the utility model is implemented adopts the imaging fiber plate of optical glass replacement prior art, greatly reduces the manufacturing cost of fingerprint acquisition device.The fingerprint of being gathered reduces the volume of collection head greatly through more than 1 catadioptric of quadrant prism, and the fingerprint image optical distortion of collection is little, and fingerprint image is accurate, the fingerprint image high conformity, and fingerprint image is clear simultaneously.
Among the embodiment 1 of the present utility model, fingerprint image acquisition partly is an optical imagery camera lens 3, and optical imagery camera lens 3 is the little spherical optics imaging system of optical distortion, aspherics imaging system, or self-focusing optics imaging system.
Among the embodiment 2 of the present utility model, fingerprint image acquisition partly is CMOS or ccd image sensor 4.
Claims (4)
1 one kinds of fingerprint acquisition devices, comprise imaging mirror, light source and image acquisition part, it is characterized in that: described imaging mirror is quadrilateral Collection prism (1), one side of quadrilateral Collection prism (1) is the fingerprint collecting face, with fingerprint collecting face adjacent surface be the light source irradiation face, with light source irradiation face corresponding surface be imaging surface, light source (2) is arranged on light source irradiation face position, fingerprint collecting partly is arranged on the imaging surface position.
2 a kind of fingerprint acquisition devices according to claim 1 is characterized in that: described quadrilateral Collection prism (1) is an optical glass.
3 a kind of fingerprint acquisition devices according to claim 1 and 2, it is characterized in that: described fingerprint image acquisition partly is optical imagery camera lens (3) and CMOS or ccd image sensor (4), optical imagery camera lens (3) is the spherical optics camera lens, aspherics camera lens, or self-focusing optics camera lens.
4 according to claim 1 or 3 described a kind of fingerprint acquisition devices, it is characterized in that: described fingerprint collecting partly is CMOS or ccd image sensor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620145339 CN200990093Y (en) | 2006-12-27 | 2006-12-27 | Fingerprints collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620145339 CN200990093Y (en) | 2006-12-27 | 2006-12-27 | Fingerprints collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200990093Y true CN200990093Y (en) | 2007-12-12 |
Family
ID=38941127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620145339 Expired - Fee Related CN200990093Y (en) | 2006-12-27 | 2006-12-27 | Fingerprints collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200990093Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964058A (en) * | 2010-09-20 | 2011-02-02 | 深圳百佳安生物识别技术有限公司 | Thin optical fingerprint scanner |
| CN107728240A (en) * | 2017-08-28 | 2018-02-23 | 苏州端景光电仪器有限公司 | A kind of selfoc lens array and mobile terminal for fingerprint recognition |
-
2006
- 2006-12-27 CN CN 200620145339 patent/CN200990093Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964058A (en) * | 2010-09-20 | 2011-02-02 | 深圳百佳安生物识别技术有限公司 | Thin optical fingerprint scanner |
| CN101964058B (en) * | 2010-09-20 | 2015-03-04 | 深圳百佳安生物识别技术有限公司 | Thin optical fingerprint scanner |
| CN107728240A (en) * | 2017-08-28 | 2018-02-23 | 苏州端景光电仪器有限公司 | A kind of selfoc lens array and mobile terminal for fingerprint recognition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071212 Termination date: 20111227 |