CN205644582U - A simple and easy device for back of hand vein image gathers - Google Patents
A simple and easy device for back of hand vein image gathers Download PDFInfo
- Publication number
- CN205644582U CN205644582U CN201620362483.4U CN201620362483U CN205644582U CN 205644582 U CN205644582 U CN 205644582U CN 201620362483 U CN201620362483 U CN 201620362483U CN 205644582 U CN205644582 U CN 205644582U
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- hand
- image acquisition
- vein image
- pass filter
- low pass
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Abstract
The utility model provides a device that a simple and easy device for back of hand vein image gathers, it relates to one kind and adopts the CCD camera to carry out the device that forms images, and concretely relates to adopts the CCD camera to carry out back of the hand vein image for one kind and gathers. The utility model discloses a solve when back of the hand vein identification image acquisition owing to gather object and the collection system problem of contact and environmental factor interference each other. The utility model discloses a CCD camera, at its camera below installation low pass filter, its purpose is for preventing the visible light to reach the CCD sensor. The low pass filter below is back of the hand fixed bolster, and two oblique tops of the left and right sides of back of the hand fixed bolster set up two near -infrared LED light sources respectively, when near -infrared LED light source emission's near infrared shines the back of hand, artificially adjust the light intensity to form images by a CCD camera of being furnished with the low pass filter. Above equipment is fixed by rectangular frame, sets up the influence of barn door in order to get rid of external light wire pair image acquisition around rectangular frame. The utility model is used for in back of the hand vein image's the collection.
Description
Technical field
This utility model relates to a kind of novel easy device for hand back vein image acquisition.
Background technology
Present stage, accuracy and the simplification of identity authentication increasingly come into one's own, on this basis, Palm-dorsal vein recognition arises at the historic moment, and the acquisition mode that existing many employings of hand back vein image collecting device are open, it is vulnerable to external environment, the impact of such as illumination and position, discrimination is relatively low, easily occurs leakage the phenomenon such as to adopt and adopt by mistake.And bigger and complicated harvester cannot be widely used in real life, this utility model hand back vein image collecting device proposed in this context has good control action for problems such as the susceptible in identification and qualification process and discrimination are low.
Utility model content
The purpose of this utility model is to provide a kind of easy device for hand back vein image acquisition, with during solving hand back vein collection and identifying easily by ectocine, discrimination is low, equipment is excessive and is difficult to application and the problem such as involve great expense.
This utility model adopts the technical scheme that for solving above-mentioned technical problem: described hand back vein image recognition and harvester include two near-infrared luminous diode groups, ccd video camera, low pass filters, the back of the hand fixed support, rectangular frame and light barrier, imaging device uses ccd video camera, installs low pass filter below to prevent visible ray from arriving ccd sensor；The near infrared light of harvester is launched by two near-infrared LED light sources, all becomes 55 degree to irradiate to realize optimum imaging effect with the back of the hand vertical line；Device therefor is connected by rectangular frame and installs, rectangular frame be covered around light barrier with get rid of external light source impact；The back of the hand fixed support is arranged at the underface of ccd video camera, it is easy to the imaging of ccd video camera.
This utility model has the advantages that installing low pass filter under camera lens is possible to prevent visible ray to arrive ccd sensor, and the light that near-infrared LED light source is launched becomes 55 degree with the back of the hand vertical line, can realize the imaging effect of optimum；Being covered around light barrier at harvester, eliminate the external light source impact on image acquisition precision, device uses the mode of contactless collection, it is easy to operation, and device is simple simultaneously, and equipment needed thereby is cheap, it is easy to accepts and applies.
Accompanying drawing explanation
Fig. 1 is open architecture schematic diagram of the present utility model.
Fig. 2 is enclosed construction schematic diagram of the present utility model.
Fig. 3 this utility model hand back vein image acquisition schematic diagram.
Detailed description of the invention
Detailed description of the invention one: combine Fig. 1, Fig. 2 illustrates present embodiment, present embodiment includes ccd video camera 4, ccd video camera is imaging device of the present utility model, the camera lens of ccd video camera is furnished with low pass filter 1, it act as discharging visible ray interference, ccd video camera is arranged in rectangular frame 3, the left and right of rectangular frame is respectively provided with two near-infrared LED light sources 2 and 5, fixed support 6 is set in the underface of ccd video camera and fixes the hands back of the body, light barrier 7 is all covered around rectangular frame, can prevent external light source from entering harvester, collection to image adversely affects, above-mentioned all devices is placed among the casing that surrounded by rectangular frame and light barrier, wherein front is semi-closed state, putting into and exiting of hands can be realized.
nullDetailed description of the invention two: combine Fig. 3 and present embodiment is described，Imaging device of the present utility model is ccd video camera 4，Its core component is CCD image sensor，Photo-sensitive cell is used to carry out opto-electronic conversion，Image is converted into numerical data to realize the purpose of image acquisition，During utility model works，The near-infrared LED light source 2 and 5 of device both sides sends near infrared light，It is irradiated to be positioned over the back side of the hands on the back of the hand fixed support 6，Can artificially regulate the intensity of light，The collection of hand back vein image is carried out by the ccd video camera being placed in directly over the back of the hand，Wherein，The light sent by LED light source is 55 ° with the angle of the back of the hand vertical line，Optimal imaging effect can be realized，Fixed support 6 is used for fixing the back of the hand，Hands is placed on it，Four clinodactylys are held wherein on one side，Thumb is placed under the palm of the hand，Treat that the back of the hand is put surely，I.e. adjustable apparatus carries out image acquisition.
Claims (5)
1. the easy device for hand back vein image acquisition, including near-infrared LED light source (2) and (5), ccd video camera (4), low pass filter (1), the back of the hand fixed support (6), rectangular frame (3) and light barrier (7), it is characterized in that: low pass filter (1) is installed in described ccd video camera (4) lower section, the left and right sides is near-infrared LED light source (2) and (5), it is the back of the hand fixed support (6) immediately below low pass filter (1), during collection, the palm of the hand is the most placed thereon, near-infrared LED light source (2) and (5) are luminous from both sides respectively to be irradiated it, device is fixed by rectangular frame (3), rectangular frame (3) is covered around light barrier (7).
A kind of easy device for hand back vein image acquisition the most according to claim 1, it is characterised in that: ccd video camera (4), with low pass filter (1), can stop visible ray to arrive ccd sensor.
A kind of easy device for hand back vein image acquisition the most according to claim 1, it is characterised in that: the angle of two near-infrared LED light sources (2) and (5) and the back of the hand vertical line is 55 degree, can realize optimal hand back vein image acquisition effect.
A kind of easy device for hand back vein image acquisition the most according to claim 1, it is characterised in that: it is covered around light barrier (7) at device, it is to avoid the ambient impact on real image acquisition.
A kind of easy device for hand back vein image acquisition the most according to claim 1, it is characterised in that: gathered person's palm of the hand is positioned on the back of the hand fixed support (6) down, and four clinodactylys are held with a firm grip the back of the hand fixed support, and thumb four is referred to shelter from by other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620362483.4U CN205644582U (en) | 2016-04-27 | 2016-04-27 | A simple and easy device for back of hand vein image gathers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620362483.4U CN205644582U (en) | 2016-04-27 | 2016-04-27 | A simple and easy device for back of hand vein image gathers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205644582U true CN205644582U (en) | 2016-10-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620362483.4U Expired - Fee Related CN205644582U (en) | 2016-04-27 | 2016-04-27 | A simple and easy device for back of hand vein image gathers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205644582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107622548A (en) * | 2017-09-18 | 2018-01-23 | 成都折衍科技有限公司 | It is easy to quick operating vena metacarpea authenticating device |
-
2016
- 2016-04-27 CN CN201620362483.4U patent/CN205644582U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107622548A (en) * | 2017-09-18 | 2018-01-23 | 成都折衍科技有限公司 | It is easy to quick operating vena metacarpea authenticating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20170427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |