CN206348815U - A kind of fingerprint collecting head - Google Patents
A kind of fingerprint collecting head Download PDFInfo
- Publication number
- CN206348815U CN206348815U CN201720013070.XU CN201720013070U CN206348815U CN 206348815 U CN206348815 U CN 206348815U CN 201720013070 U CN201720013070 U CN 201720013070U CN 206348815 U CN206348815 U CN 206348815U
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- CN
- China
- Prior art keywords
- pipe support
- mainboard
- lens
- fingerprint collecting
- collecting head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of fingerprint collecting head, a kind of fingerprint collecting head includes pipe support, lens and mainboard, the afterbody of the pipe support is provided with the Access Division for fixing lens, multiple confession fixing bolts are provided with the mainboard and pass through the through hole for being used for fixing mainboard, correspondence position is provided with screwed hole and coordinated with through hole on the pipe support, and the through hole is set in waist type.Above-mentioned setting allows lens to be directly embedded into realization positioning in Access Division, install very convenient, then mainboard is fixed on pipe support by fixing bolt, due to lens position being secured when pipe support is produced so that it is without being adjusted, after mainboard is installed on pipe support, if necessary to adjust, only need to unclamp bolt, without mainboard is disassembled, reach the effect for simplifying regulation and installing.
Description
Technical field
The utility model is related to fingerprint image acquisition field, more particularly to a kind of fingerprint collecting head.
Background technology
Fingerprint Identification Unit is a kind of instrumentation that identification is carried out by the biometric fingerprint of human body.It extensively should
For authentications such as bank, social security, public security, work attendance, gate inhibition, computer techno-stress safety, the means of payment of internet shopping
Occasion.At present, the most frequently used fingerprint capturer be by prism, light source, lens, touch pad, masking ambient light, for image
The mainboard of sensing chip and the rectangular mold pipe support composition of the above-mentioned part of support.
, it is necessary to first complete the production of mainboard, touch pad and light source in existing Fingerprint Identification Unit, then start assembling again,
First prism is installed on pipe support in assembling, touch pad and light source are then loaded into bonnet upper plate, then with bolt the bottom of by
Plate is fixed on pipe support, after bottom plate installation is completed, and mainboard will be fixed on pipe support with bolt.Wherein, pacify by mainboard
, it is necessary to first lens are fixed on mainboard, existing lens to be mounted directly on mainboard before being attached on pipe support, in peace
Due to the presence of error during dress so that image sensor chip and lens cause optical path distortion not on same level axial line, therefore
Need to be finely adjusted each lens, so being in adjustable attachment structure by the installation settings between lens and mainboard；In addition, being
Reduce the generation of distortion, it is necessary to which mainboard is arranged into inclined, and lens are vertically disposed, this causes difficult during regulation
To ensure image sensor chip and lens on same level axial line, and regulation needs to disassemble mainboard, causes regulation
It is very cumbersome, so that the production of Fingerprint Identification Unit, installation process complexity are, it is necessary to take a substantial amount of time and energy, reduction
Production efficiency.
Utility model content
The purpose of this utility model is to provide a kind of fingerprint collecting head, which solves the installation of lens and adjusts relatively complicated
The problem of.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of fingerprint collecting head, including pipe support, lens and mainboard, the afterbody of the pipe support are provided with for fixing lens
Multiple confession fixing bolts are provided with Access Division, the mainboard and pass through correspondence on the through hole for being used for fixing mainboard, the pipe support
Position is provided with screwed hole and coordinated with through hole, and the through hole is set in waist type.
It is arranged such, lens, which can be directly embedded into Access Division, realizes positioning, installs very convenient, then passes through mainboard
Fixing bolt is fixed on pipe support, due to securing lens position when pipe support is produced so that it is without being adjusted
Section, after mainboard is installed on pipe support, if necessary to adjust, it is only necessary to unclamp bolt, without mainboard is disassembled,
Reach the effect for simplifying regulation and installing.
More preferably：The Access Division is a position limiting convex ring.
It is arranged such, causes lens are directly caught in convex go back can be carried out to the radial direction of lens by the setting of position limiting convex ring
Spacing fixation, makes its axial line be maintained at horizontality.
More preferably：The fixation stuck point for preventing lens from deviating from is provided with the inwall of the position limiting convex ring.
It is arranged such, after lens are snapped onto into position limiting convex ring, lens are limited by stuck point is fixed in the axial direction so that
It will not be moved axially during use, it is to avoid cause the distance between lens and prism and lens and image sensor chip,
Cause optical path distortion.
More preferably：The fixed stuck point is annular projection.
Cyclic structure, which is set, has more excellent limit effect, and stability is more preferable.
More preferably：The material of the pipe support is plastic material, and the afterbody of the pipe support is provided with multiple leads,
Multiple positioning holes are provided with the mainboard with lead to coordinate.
It is arranged such, can be positioned when installing mainboard by lead so that the installation of mainboard is more accurate, subtracts
Regulation after few installation；And because pipe support and lead use plastic material are made, only needing to cut-out when needing regulation leads
To post.
More preferably：The lead is set to four, is distributed on four angles；The screwed hole is set to two
It is individual, it is distributed in Access Division both sides.
It is arranged such, the locating effect of lead is preferable, and it is steady after using fixing bolt by mainboard and pipe support connection
Qualitative and structural strength is excellent.
More preferably：Loophole, the loophole are provided with the installing plate that position limiting convex ring is set on the pipe support
With the concentric setting of position limiting convex ring.
It is arranged such, the connection of light path is realized in the setting of loophole so that the fingerprint on lens can project to image biography
On sense chip.
In summary, the utility model has the advantages that：
1st, the mode for first installing fixed lens is employed, lens are easy for installation；
2nd, under the using cooperatively of lead, the installation accuracy of mainboard is excellent, installation position between lens and image sensor chip
Put precisely, reduce substantial amounts of regulating time；
3rd, it is convenient to running into when special circumstances need regulation, only need to blocks lead and can be finely adjusted.
Brief description of the drawings
Fig. 1 is the structural representation of the present embodiment；
Fig. 2 is the index path of the present embodiment；
Fig. 3 is the fractionation schematic diagram of the present embodiment, shows the mounting structure between bonnet, touch pad and pipe support；
Fig. 4 is the fractionation schematic diagram of the present embodiment, shows the structure of touch pad and pipe support afterbody；
Fig. 5 is the structural representation of bonnet in the present embodiment.
In figure, 1, pipe support；11st, cavity；121st, spacing stuck point；122nd, clamping stuck point；13rd, spacing salient point；141st, neck；
142nd, snapping fin；15th, installing plate；151st, loophole；16th, Access Division；161st, fixed stuck point；17th, lead；18th, screwed hole；
2nd, lens；21st, face is gathered；22nd, reading face；23rd, dark background face；3rd, lens；4th, light source；5th, touch pad；51st, spacing hole；6th, after
Lid；61st, snap groove；62nd, clamping fin；621st, chamfering；7th, mainboard；71st, fixing bolt；72nd, through hole；73rd, positioning hole；8th, image
Sensing chip；9th, foam-rubber cushion；Angle between a, collection face and dark background face；Angle between b, collection face and reading face；c、
Light source is irradiated to the angle that the light of collection face peak is refracted to after prism and is refracted between the light of collection face minimum point.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only to explain of the present utility model, and it is not to limitation of the present utility model, ability
Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but
As long as all being protected in protection domain of the present utility model by Patent Law.
A kind of fingerprint collecting head, as shown in figure 1, including pipe support 1, prism 2, lens 3, light source 4, touch pad 5, image sensing
Chip 8, mainboard 7 and bonnet 6, prism 2 in triangular prism-shaped and located at pipe support 1 head, its three sides be respectively collection face 21,
Dark background face 23 and reading face 22；Image sensor chip 8 is installed on mainboard 7, and lens 3 and image sensor chip 8 are located at pipe support
1 afterbody.
Light source 4 is arranged on touch pad 5, and the dark background face 23 of prism 2 is horizontally disposed with, and bonnet 6 is arranged on the bottom of pipe support 1
Portion, touch pad 5 is installed between prism 2 and bonnet 6 and fitted with dark background face 23, and sea is provided between prism 2 and touch pad 5
Continuous pad 9, wherein, light source 4 and image sensor chip 8 are controlled by touch pad 5, start after touch pad 5 receives fingerprint signal
Light source 4 and image sensor chip 8 work.
Reference picture 1 and Fig. 4, dark background face 23 are coated on prism 2 by black ink and formed, and light source 4 is 2-4 side
Luminous LED infrared lamps（Particular number is set according to the lighting effect of light source 4）, in the present embodiment LED infrared lamps be provided with 4
It is individual, and light source 4 and the coplanar setting in dark background face 23 so that light source 4 is radiated on reading face 22.
As shown in Fig. 2 collection face 21 for Tp 2 long side where side, collection face 21 and dark background face 23 it
Between angle a be 40-50 °, collection face 21 and reading face 22 between angle b be 55-70 ° so that light source 4 is irradiated to prism 2
The angle c for being refracted to the light of the peak of collection face 21 afterwards and being refracted between the light of the minimum point of collection face 21 is less than 25 °.At this
In embodiment, the angle a between collection face 21 and dark background face 23 is 42 °, the angle b between collection face 21 and reading face 22
For 65 °, and lens 3 are located at light source 4 and are irradiated to the peak place plane that collection face 21 is refracted to after prism 2 and dark background face 23
Between central plane on.
Reference picture 3 and Fig. 4, be provided with the cavity 11 for accommodating prism 2 and touch pad 5 in pipe support 1, and cavity 11 is opened
Mouth is located at the bottom of installation cavity.The slot for grafting touch pad 5 is provided with the opening of pipe support 1, the opening of slot is located at pipe
The afterbody of frame 1, the slot is made up of the spacing clamping stuck point 122 of stuck point 121 and two, and positioning stuck point is arranged on the head of the grade of pipe support 1,
Two clamping stuck points 122 are respectively arranged on the two side of pipe support 1 and 3 structures are formed between the afterbody of body, three stuck points.
The afterbody of pipe support 1 be additionally provided with spacing salient point 13 be used for will the touch pad 5 that be installed on neck 141 it is spacing live, set on touch pad 5
The spacing hole 51 coordinated with spacing salient point 13 is equipped with, it is solid in the case where being acted on after touch pad 5 is buckled into neck 141 in spacing salient point 13
It is scheduled at the opening of cavity 11 of pipe support 1.
As shown in Fig. 3, Fig. 4 and Fig. 5, the head of pipe support 1 is provided with neck 141, and the openend of neck 141 is located at mainboard 7
Installation section on, one end of bonnet 6 is provided with the clamping fin 62 coordinated with neck 141, and clamping fin 62 is strip, and
The chamfering 621 rotated for bonnet 6 is provided with the raised end face of clamping fin 62, chamfering 621 is set upward.In the tail of pipe support 1
The position that correspondence snapping fin 142 on the snapping fin 142 of a point-like, bonnet 6 is provided with the two side in portion is provided with
The snap groove 61 coordinated with snapping fin 142, when mounted, is first inserted into the card on the head of pipe support 1 by the clamping fin 62 of bonnet 6
In groove 141, it is then that basic point rotation bonnet 6 snaps into bonnet 6 in pipe support 1 with clamping fin 62, is detained by snapping fin 142
Firmly bonnet 6, finally spacing firmly along grafting direction by bonnet 6 after the installation of mainboard 7, you can to fix bonnet 6.
Reference picture 1, Fig. 3 and Fig. 4, are provided with installing plate 15, installing plate 15 in the afterbody of pipe support 1 and are provided with Access Division 16
For fixing lens 3, loophole 151 is provided with installing plate 15（See Fig. 1）, Access Division 16 is a position limiting convex ring, spacing
The fixation stuck point 161 for preventing lens 3 from deviating from is provided with the inwall of bulge loop, fixed stuck point 161 is in position limiting convex ring
The annular projection that wall one is enclosed.
Pipe support 1 is made using the material of plastic material, and the afterbody of pipe support 1 is provided with four leads 17, lead 17
It is distributed on four angles, be provided with four positioning holes 73 on four angles of mainboard 7 coordinates with lead 17, positioning hole 73 is with being oriented to
Post 17 is equipped with gap.Two screwed holes 18 are provided with pipe support 1, screwed hole 18 is arranged on the both sides of pipe support 1 and is located at
Between two leads 17, two are provided with mainboard 7 and passes through the through hole 72 for being used for fixing mainboard 7 for fixing bolt 71, wherein,
Through hole 72 is set in waist type.
As shown in figure 1, the upper end of mainboard 7 is in be obliquely installed towards prism 2.
Claims (7)
1. a kind of fingerprint collecting head, including pipe support (1), lens (3) and mainboard (7), it is characterized in that：The afterbody of the pipe support (1)
Be provided with for fix be provided with the Access Divisions (16) of lens (3), the mainboard (7) it is multiple for fixing bolt (71) through
Correspondence position on the through hole (72) for fixing mainboard (7), the pipe support (1) is provided with screwed hole (18) with through hole (72) to match somebody with somebody
Close, the through hole (72) is set in waist type.
2. a kind of fingerprint collecting head according to claim 1, it is characterized in that：The Access Division (16) is a position limiting convex ring.
3. a kind of fingerprint collecting head according to claim 2, it is characterized in that：Use is provided with the inwall of the position limiting convex ring
In the fixation stuck point (161) for preventing that lens (3) from deviating from.
4. a kind of fingerprint collecting head according to claim 3, it is characterized in that：The fixed stuck point (161) is annular projection.
5. a kind of fingerprint collecting head according to claim 1, it is characterized in that：The material of the pipe support (1) is plastic material,
The afterbody of the pipe support (1), which is provided with multiple leads (17), the mainboard (7), is provided with multiple positioning holes (73) and guiding
Post (17) coordinates.
6. a kind of fingerprint collecting head according to claim 5, it is characterized in that：The lead (17) is set to four, point
It is distributed on four angles；The screwed hole (18) is set to two, is distributed in Access Division (16) both sides.
7. a kind of fingerprint collecting head according to claim 2, it is characterized in that：Position limiting convex ring is set on the pipe support (1)
Installing plate is provided with loophole on (15)（151）, the loophole（151）With the concentric setting of position limiting convex ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720013070.XU CN206348815U (en) | 2017-01-06 | 2017-01-06 | A kind of fingerprint collecting head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720013070.XU CN206348815U (en) | 2017-01-06 | 2017-01-06 | A kind of fingerprint collecting head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206348815U true CN206348815U (en) | 2017-07-21 |
Family
ID=59324212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720013070.XU Expired - Fee Related CN206348815U (en) | 2017-01-06 | 2017-01-06 | A kind of fingerprint collecting head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206348815U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533583A (en) * | 2018-06-01 | 2018-09-14 | 赛尔富电子有限公司 | A kind of lamp installation component |
-
2017
- 2017-01-06 CN CN201720013070.XU patent/CN206348815U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533583A (en) * | 2018-06-01 | 2018-09-14 | 赛尔富电子有限公司 | A kind of lamp installation component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170721 Termination date: 20190106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |