CN110472536A - A kind of small size array iris capturing mould group - Google Patents
A kind of small size array iris capturing mould group Download PDFInfo
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- CN110472536A CN110472536A CN201910699423.XA CN201910699423A CN110472536A CN 110472536 A CN110472536 A CN 110472536A CN 201910699423 A CN201910699423 A CN 201910699423A CN 110472536 A CN110472536 A CN 110472536A
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- fpc
- iris
- mould group
- iris capturing
- array
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/18—Eye characteristics, e.g. of the iris
- G06V40/19—Sensors therefor
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
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- General Physics & Mathematics (AREA)
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- Theoretical Computer Science (AREA)
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Abstract
The present invention provides a kind of small size array iris capturing mould groups, including FPC rubbing plate, at least two imaging sensor of FPC rubbing plate side array distribution, for each imaging sensor, install an iris lens by mounting seat；FPC rubbing plate is drawn and the same number of FPC plug of imaging sensor, the fixed FPC stiffening plate in the rubbing plate other side FPC.The beneficial effects of the invention are as follows combine to compare with multiple individual modules, image sensor array formula is welded on FPC rubbing plate, utmostly reduce the spacing between lens module, it reduces between single module since volume itself, structure mounting distance cause areas imaging in horizontal, vertical direction difference, improves the precision of iris capturing.Meanwhile the design of array reduces the volume of iris capturing equipment entirety, improves user experience；In array module design, single camera lens, pedestal are individual devices, freedom degree height, and array imaging sensor can be freely combined and be assembled into mould group, it is easy to accomplish design object.
Description
Technical field
The present invention relates to image sensing technical field, in particular to a kind of small size array iris capturing mould group.
Background technique
Now, recognition of face is the main identification method of a variety of bio-identifications.But with the variation of acquisition target age, face
A certain proportion of difficult identification is presented in the variation of details, the variation of acquisition range, the discrimination meeting degradation of face identification system
Or misrecognition.Iris recognition is a kind of more accurate, stable, the higher recognition methods of applicability.It is not mainly by
Iris texture with crowd identifies.Because human eye iris is unique, the features such as uniqueness, stability, even if gene phase
There is also iris texture differences by close twins, therefore identify that accuracy is very high.But (mankind are averaged iris since iris region is small
Diameter is 11mm), and iris texture is fine, it is therefore desirable to high-precision iris capturing mould group.The single-lens acquisition of traditional iris
The mould group routine depth of field also can only cover 10cm~12cm or so in 5cm or so, lateral acquisition range；Acquisition range is narrow, acquisition away from
From close.Iris is laterally wider, longitudinal farther acquisition in order to promote, often using the technology of multiple single-lens mould groups splicings.Such as Fig. 1
It is shown, it is a kind of equipment for laterally increasing iris capturing width.
The splicing very good solution of multiple single mode groups wide scope of iris mould group, remote capture, but iris is caused to adopt
It is bigger than normal, partially thick to collect equipment volume, the decline of human body friendly.And each single mode group is required to the positioning of at least four fastened by screw, it is more
A mould group installation trouble.It is as shown in Figure 2 to Figure 3 the structure chart of single module.Secondly, single module is being installed into iris equipment
When each other will cause installation deviation, had differences on same reference line so as to cause multiple images sensor, image
As in horizontal or vertical orientation, there are fine differences.Finally since installation volume of the single module in iris capturing equipment is true
It is fixed, the installation splicing of multiple mould groups, cause the physical centre of mould group and mould group is remote, imaging region horizontally or vertically exist compared with
Big difference increases the difficulty and service precision of iris capturing to a certain degree.It is therefore desirable to provide a kind of novel array
Iris lens mould group.
Since single module areas imaging, the depth of field limit, in the iris capturing application of longitudinal remote, lateral wide scope
In, usually the purpose that Calais realizes iris capturing is stacked using multiple independent moulds.But on the one hand the superposition of multiple mould groups causes
Equipment volume becomes larger, user experience decline.On the other hand, since structure installation leads to center spacing between independent single module
Become larger, cause multiple iris mould group imaging region deviations in horizontal or vertical direction, brings certain do to iris capturing
It disturbs.
Therefore, in order to solve the existing above problem in the prior art, a kind of small size array iris capturing is needed
Mould group.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology, provides a kind of small size array iris capturing mould group,
The image sensor array formula of a plurality of lenses mould group is welded on same FPC rubbing plate, shortens multiple moulds to greatest extent
Spacing between group reduces the difference of multiple module group imaging regions, maximum to utilize iris capturing device structure space, reduces
Equipment volume, while camera lens, pedestal realize independent design, may be implemented the camera lens of different focal length f, different size pedestal with
And the combination of different resolution imaging sensor is, it can be achieved that a variety of iris capturing targets.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of small size array iris capturing mould
Group, including FPC rubbing plate, at least two imaging sensor of FPC rubbing plate side array distribution, for figure described in each
As sensor, an iris lens are installed by mounting seat；The FPC rubbing plate is drawn identical as described image sensor number
FPC plug, the fixed FPC stiffening plate in the FPC rubbing plate other side.
Preferably, in order to increase the applicability of device, the focal length of the different iris lens is different, and described in each
The corresponding acquisition sum of the distance of iris lens focal length is greater than/is equal to the use distance of iris capturing group.
Preferably, in order to increase the practicability of device, the contact surface of the adjacent mounting seat is fitted closely；It is two neighboring
The centre distance of described image sensor, the centre distance of the mounting seat corresponding with two neighboring described image sensor
It is equal.
Preferably, in order to increase the usability of device, first group of screw hole and second group of spiral shell are opened up on the FPC stiffening plate
Hole；First group of screw hole is used to film acquisition mould group being mounted on iris for installing the FPC rubbing plate, second screw hole
It acquires in equipment；The number of the described image sensor of the number and array of first group of screw hole meets relationship N=2 × n,
In, N is the number of first group of screw hole, and n is the number of the described image sensor of array.
Preferably, in order to increase the practicability of device, the described image sensing of the FPC rubbing plate side array arrangement
Device laterally or longitudinally arranges that the FPC plug is folded by the two sides of the FPC rubbing plate and/or end and drawn in a straight line；
On the FPC rubbing plate, a FPC plug is drawn between two adjacent described image sensors；It is rubbed by the FPC
Property the difference FPC plugs drawn of plate, respectively correspond the control module interface of the iris capturing equipment.
Preferably, in order to increase the applicability of device, the mounting seat is M type interface pedestal.
Compared with prior art, the beneficial effects of the present invention are:
1, it combines and compares with multiple individual modules, image sensor array formula is welded on FPC rubbing plate, is utmostly contracted
Spacing between small lens module reduces between single module since volume itself, structure mounting distance cause imaging model
It is trapped among horizontal, vertical direction difference, improves the precision of iris capturing.Meanwhile the design of array reduces iris capturing
The volume of equipment entirety, improves user experience.
2, in array module design, single camera lens, pedestal are individual devices, freedom degree height, and array figure can be freely combined
As sensor is assembled into mould group, it is easy to accomplish design object.
It should be appreciated that aforementioned description substantially and subsequent detailed description are exemplary illustration and explanation, it should not
As the limitation to the claimed content of the present invention.
Detailed description of the invention
With reference to the attached drawing of accompanying, the more purposes of the present invention, function and advantage are by the as follows of embodiment through the invention
Description is illustrated, in which:
Fig. 1 diagrammatically illustrates a kind of equipment schematic diagram for laterally increasing iris capturing width；
Fig. 2 diagrammatically illustrates single module structural schematic diagram；
Fig. 3 diagrammatically illustrates single module structural schematic diagram；
Fig. 4 diagrammatically illustrates whole configuration schematic diagram of the invention；
Fig. 5 to Fig. 7 diagrammatically illustrates FPC plug different location distribution mode schematic diagram in the present invention；
Fig. 8 diagrammatically illustrates FPC reinforcement plate structure diagram in the present invention；
Fig. 9 diagrammatically illustrates FPC rubbing plate in the present invention and welds three longitudinal imaging sensor distribution schematic diagrams；
Figure 10 diagrammatically illustrates FPC rubbing plate in the present invention and welds four longitudinal imaging sensor distribution schematic diagrams；
Figure 11 diagrammatically illustrates FPC rubbing plate in the present invention and welds four landscape images sensor distribution schematic diagrams.
In figure:
101, the first iris lens 102, the second iris lens 103, the first mounting seat
104, the second mounting seat 105, FPC rubbing plate 106, the first imaging sensor
107, the second imaging sensor 108, FPC stiffening plate 1801, outside nut hole one
1802, outside nut hole 2 1803, outside nut hole 3 1804, outside nut hole four
1805, female screw hole 1, female screw hole 2 1807, female screw hole three
1808, female screw hole four
Specific embodiment
By reference to exemplary embodiment, the purpose of the present invention and function and the side for realizing these purposes and function
Method will be illustrated.However, the present invention is not limited to exemplary embodiment as disclosed below；Can by different form come
It is realized.The essence of specification is only to aid in those skilled in the relevant arts' Integrated Understanding detail of the invention.
Hereinafter, the embodiment of the present invention will be described with reference to the drawings.In the accompanying drawings, identical appended drawing reference represents identical
Or similar component or same or like step.
Embodiment one
According to one embodiment of present invention, two panels imaging sensor is installed in FPC rubbing plate 105 in the present embodiment, such as
Shown in Fig. 4, the present embodiment provides a kind of small size array iris capturing mould group, including FPC rubbing plate 105, FPC rubbing plates
105 side array distribution, at least two imaging sensor installs an iris by mounting seat for each imaging sensor
Camera lens；FPC rubbing plate 105 is drawn and the same number of FPC plug of imaging sensor, the fixed FPC in 105 other side of FPC rubbing plate
Stiffening plate 108.
The focal lengths of different iris lens is different, and the corresponding acquisition sum of the distance of each iris lens focal length greater than/
Equal to the use distance of iris capturing group；
The contact surface of adjacent mounting seat fits closely；The centre distance of two adjacent images sensor, and it is two neighboring
The centre distance of the corresponding mounting seat of imaging sensor is equal；Mounting seat is M type interface pedestal.
First group of screw hole and second group of screw hole are opened up on FPC stiffening plate 105；First group of screw hole is for installing FPC reinforcement
Plate 105, second group of screw hole are used to film acquisition mould group being mounted on iris capturing equipment；The number of first group of screw hole and array
The number of imaging sensor meets relationship N=2 × n, wherein N is the number of first group of screw hole, and n is the imaging sensor of array
Number.
105 side array of FPC rubbing plate arrangement imaging sensor, laterally or longitudinally in a straight line arrange, FPC plug by
The two sides of FPC rubbing plate 105 and/or end, which fold, draws；On FPC rubbing plate 105, between two adjacent imaging sensors
Draw a FPC plug；The different FPC plugs drawn by FPC rubbing plate 105, respectively correspond the control mould of iris capturing equipment
Block interface.
As shown in figure 4, it is L that equipment, which uses distance, wherein the first iris lens when imaging sensor number is two
101 be main iris lens, focal length f1, corresponding acquisition distance is L1；Second iris lens 102 are from iris lens, and focal length is
f2, corresponding acquisition distance is L2Wherein, f1≠f2, L≤L1+L2.First mounting seat 103 and the second mounting seat 104 are that M type connects
Mouth pedestal, is mainly used to fix the first iris lens 101 and the second iris lens 102.Its adjacent interplanar distance is 0, or keeps knot
Structure minimum spacing.FPC rubbing plate 105 uses unitary design, and the first imaging sensor 106 and the second image sensing is respectively welded
Device 107 and corresponding peripheral circuit are drawn a FPC and are inserted between the first imaging sensor 106 and the second imaging sensor 107
Head.The model A of first imaging sensor 1061, resolution ratio B1, pixel C1.The model of second imaging sensor 107
A2, resolution ratio B2, pixel C2.Wherein A1, B1, C1With A2, B2, C2There are following two relationships:
(1)A1=A2,B1=B2,C1=C2；
(2)A1≠A2,B1≠B2,C1≠C2；
First imaging sensor 106, the model A of the second imaging sensor 107, resolution ratio B, pixel C, these different parameters
Permutation and combination be easier realize design effect.FPC rubbing plate 105 has two FPC plugs, respectively corresponds device control module and connects
Mouthful.There can be different modes according to the design of practical small size, Fig. 5 to Fig. 7 lists three kinds of different modes respectively.It furthermore can root
According to the needs of equipment, different FPC plug distribution modes is designed, the space utilization rate of lifting means entirety reduces iris capturing
The volume of equipment.The center of first imaging sensor 106 and the second imaging sensor 107 is away from equal to 103 He of the first mounting seat
The center of second mounting seat 104 is away to guarantee that the first imaging sensor 106 and the second imaging sensor 107 accomplish structure
Upper minimum spacing, and ensure that the collimation and central symmetry of single lens module optical path.FPC stiffening plate 108 is for consolidating mould group
Be scheduled in equipment, using PC, ABS or other with certain degree of hardness, be unlikely to deform, convenient for the material of cutting.Such as Fig. 5, outermost
4 screw holes 1801,1802,1803,1804 be used to array lens mould group being fixed on equipment, quantity and single-lens mould group
Quantity is identical, simplifies the installation of more lens modules.Internal 4 screw holes 1805,1806,1807,1808 are used for image
Sensor is fixed on stiffening plate 108, the quantity N of internal thread hole 1805,1806,1807,1808, depending on array mould group
Quantity n has following relationship:
N=2*n
Embodiment two.
In the present embodiment on FPC flexible board 105 array three pieces, four even more picture sensors, other can
In the embodiment of energy, the first iris lens 101, the second iris lens 102 can be with diameter 14mm, 12mm, 8mm even smaller diameters
Camera lens.First mounting seat 103, the second mounting seat 104 are also possible to M12, the isometric smaller pedestal of M8, M7.FPC
The imaging sensor of 105 side array of rubbing plate arrangement, is laterally or longitudinally arranged in a straight line, FPC rubbing plate 105 solderable three
Piece (such as Fig. 9), four (the even more picture sensors of such as Figure 10 to Figure 11), and imaging sensor can laterally (such as Figure 11)
It can also longitudinal (such as Figure 10) arrangement.More large volume camera lens, pedestal and image sensor array design more have advantage.Its work
Principle and structure are similar with using two panels array image sensor, as shown in figure 4, details are not described herein.To the technology of this field
Personnel, in the case where not departing from the invention design, a series of improvement of progress are all belonged to the scope of protection of the present invention.
It is compared the beneficial effects of the present invention are: being combined with multiple individual modules, image sensor array formula is welded on FPC and rubs
Property plate on, utmostly reduce the spacing between lens module, reduce between single module due to volume itself, structure pacify
Dress distance causes areas imaging in horizontal, vertical direction difference, improves the precision of iris capturing.Meanwhile array is set
Meter reduces the volume of iris capturing equipment entirety, improves user experience；In array module design, single camera lens, pedestal
It is individual devices, freedom degree height, array imaging sensor can be freely combined and be assembled into mould group, it is easy to accomplish design object.
In conjunction with the explanation and practice of the invention disclosed here, the other embodiment of the present invention is for those skilled in the art
It all will be readily apparent and understand.Illustrate and embodiment is regarded only as being exemplary, true scope of the invention and purport are equal
It is defined in the claims.
Claims (10)
1. a kind of small size array iris capturing mould group, which is characterized in that the iris capturing mould group includes: FPC rubbing plate,
Array distribution at least two imaging sensor in the FPC rubbing plate side passes through installation for each described image sensor
Pedestal installs an iris lens；
The FPC rubbing plate is drawn to be consolidated with the same number of FPC plug of described image sensor, the FPC rubbing plate other side
Determine FPC stiffening plate.
2. iris capturing mould group according to claim 1, which is characterized in that the focal length of the different iris lens is different,
And the corresponding use distance for acquiring sum of the distance and being greater than/be equal to iris capturing group of each described iris lens focal length.
3. iris capturing mould group according to claim 1, which is characterized in that the contact surface of the adjacent mounting seat is close
Fitting.
4. iris capturing mould group according to claim 1, which is characterized in that the center of two neighboring described image sensor
The centre distance of distance, the mounting seat corresponding with two neighboring described image sensor is equal.
5. iris capturing mould group according to claim 1, which is characterized in that open up first group on the FPC stiffening plate
Screw hole and second group of screw hole；
First group of screw hole is used to film acquisition mould group being mounted on rainbow for installing the FPC rubbing plate, second screw hole
Film acquires in equipment.
6. iris capturing mould group according to claim 5, which is characterized in that the number of first group of screw hole and array
The number of described image sensor meets relationship N=2 × n, wherein N be first group of screw hole number, n for array institute
State the number of imaging sensor.
7. iris capturing mould group according to claim 1, which is characterized in that the FPC rubbing plate side array arrangement
Described image sensor, laterally or longitudinally in a straight line arrange, the FPC plug by the FPC rubbing plate two sides and/or end
Portion, which folds, draws.
8. iris capturing mould group according to claim 1 or claim 7, which is characterized in that adjacent on the FPC rubbing plate
A FPC plug is drawn between two described image sensors.
9. iris capturing mould group according to claim 8, which is characterized in that the different institutes drawn by the FPC rubbing plate
FPC plug is stated, the control module interface of the iris capturing equipment is respectively corresponded.
10. iris capturing mould group according to claim 1 or 3, which is characterized in that the mounting seat is M type interface bottom
Seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910699423.XA CN110472536A (en) | 2019-07-31 | 2019-07-31 | A kind of small size array iris capturing mould group |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910699423.XA CN110472536A (en) | 2019-07-31 | 2019-07-31 | A kind of small size array iris capturing mould group |
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| CN110472536A true CN110472536A (en) | 2019-11-19 |
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| US20190171878A1 (en) * | 2016-01-06 | 2019-06-06 | Lg Innotek Co., Ltd. | Lens module and iris recognition camera module comprising same, and iris recognition camera system and terminal comprising same |
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2019
- 2019-07-31 CN CN201910699423.XA patent/CN110472536A/en active Pending
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| US20190171878A1 (en) * | 2016-01-06 | 2019-06-06 | Lg Innotek Co., Ltd. | Lens module and iris recognition camera module comprising same, and iris recognition camera system and terminal comprising same |
| CN205594648U (en) * | 2016-04-20 | 2016-09-21 | 深圳芯启航科技有限公司 | Biological characteristics discernment module and terminal equipment |
| CN109413307A (en) * | 2018-09-29 | 2019-03-01 | 努比亚技术有限公司 | A kind of camera module and terminal |
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Inventor after: Chen Ping Inventor after: Zhang Yanni Inventor after: Du Zhaolin Inventor after: Zhang Jinren Inventor before: Zhang Yanni Inventor before: Du Zhaolin Inventor before: Zhang Jinren Inventor before: Chen Ping |