CN205486177U - Fingerprints collector - Google Patents
Fingerprints collector Download PDFInfo
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- CN205486177U CN205486177U CN201620238953.6U CN201620238953U CN205486177U CN 205486177 U CN205486177 U CN 205486177U CN 201620238953 U CN201620238953 U CN 201620238953U CN 205486177 U CN205486177 U CN 205486177U
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Abstract
The utility model discloses a fingerprints collector, include: optical prism, imaging module, light source, main circuit board and encapsulating shell, optical prism is the right trapezoid prism, optical prism controls the plane of reflection at both ends and goes out plain noodles and two sides including parallel from top to bottom fingerprint collection face and bottom surface, the plane of reflection with the bottom surface becomes contained angle beta and satisfies: 95 <= beta <= 125, the plane of reflection has plated the reflectance coating, imaging module lies in optical prism and goes out plain noodles one side, its optical axis and optical prism's formation of image optical axis parallel, imaging module sets gradually multi -disc lens and image sensor along the optical axis direction, lens perpendicular to optical axis sets up, image sensor becomes certain angle setting with the optical axis vertical direction, and its angularity theta satisfies: 0 theta <= 10. In this way, fingerprints collector has the image quality height, and is small, simple structure, and view field range is wide, and the assembly debugging is convenient, and the mass production of being convenient for can extensively be adapted to advantages such as miniaturized fingerprints collector.
Description
Technical field
This utility model relates to field of biological recognition, particularly relates to a kind of fingerprint acquisition device.
Background technology
Fingerprint recognition is to utilize the fingerprint of people to have different feature to carry out the one of identification
Biological identification technology, its identification process mainly includes fingerprint image acquisition, Finger print characteristic abstract and fingerprint
Aspect ratio equity, wherein fingerprint image acquisition is most important and the key link.Existing fingerprint image
Harvester is divided into optical profile type and semiconductor-type, and what optical fingerprint harvester utilized is being all-trans of light
Penetrating principle, have and gather the advantage that image resolution ratio is high, stability is strong, its shortcoming is that volume is relatively big,
Assembling complexity, it is impossible to batch integrated production well.
Existing compact optical fingerprint instrument many employings optical prism+diaphragm+convex lens+reflecting mirror+image
The form of sensor realizes the collection of fingerprint image, arranges along optical axis direction in the front of optical prism
A piece of convex lens or a piece of non-spherical lens correct the imaging of whole optical system as imaging modules
Aberration, carries out fingerprint imaging, but the optics degree of freedom of a piece of lens is relatively low, and aberration correction is limited, no
Fine image effect can be reached.It addition, the focal length of a piece of lens is bigger in optical fingerprint instrument light path system
Make spacing between lens and prism relatively big, cause whole harvester volume bigger, if it is desired to reduce
Volume typically requires uses one or more plane mirror, is reduced the length of horizontal direction by light ray bending
Degree, reduce optical fingerprint instrument length, but thus bring be whole optical fingerprint instrument thickness increase,
And add optical component quantity make cost improve, assembly complexity.It addition, optical fingerprint instrument
Being the electrooptical device of a kind of precision, it is the highest to the requirement degree of assembling and setting, each optical fingerprint instrument by
Different in its internal optics components and parts of mismachining tolerance and other structural members, need every optical finger print
Instrument is debugged, and to ensure the quality of fingerprint image acquisition, integrated production degree is the lowest in batches.
Utility model content
In order to solve that optical fingerprint instrument image quality in prior art is poor, volume more greatly, the most integrated
The problems such as production degree is low, this utility model provides a kind of fingerprint acquisition device, including:
Optical prism, imaging modules, light source, main circuit board and encapsulating shell, described optical prism is straight
Angle Dove prism, described optical prism includes the most parallel fingerprint collecting face and bottom surface, two ends, left and right
Reflecting surface and exiting surface and two sides, described reflecting surface meets with described bottom surface angle β:
95 °≤β≤125 °, reflecting surface is coated with reflectance coating；Described imaging modules is positioned at optical prism exiting surface one
Side, its optical axis is parallel with the imaging optical axis of optical prism, and described imaging modules sets successively along optical axis direction
Put multi-disc lens and imageing sensor, described vertical lens in optical axis arrange, described imageing sensor with
The angled setting of optical axis vertical direction, its angulation θ meets: 0 ° of ＜ θ≤10 °.
A technical scheme of the present utility model has the following advantages or beneficial effect:
In this utility model, fingerprint image light has only to the reflecting surface by described optical prism once
Reflection, can be so that the reflection light of fingerprint image be in the horizontal direction through the exiting surface of described optical prism
Propagating to described imaging modules, without bottom reflection, the polishing to bottom surface requires relatively low, reduces
The difficulty of processing of prism, and, compared with the primary event type prism with identical fingerprints collection face,
This utility model shortens light path, reduces the length of prism, and then the overall body of fingerprint acquisition device
Long-pending reduction.
Imaging modules described in this utility model is by multi-disc lens and the figure arranging certain angle of inclination
As sensor is constituted, make the compact of this imaging modules, simple in construction.
Imaging modules described in this utility model uses multi-disc lens compared to traditional a piece of convex lens
Add the degree of freedom of optical correction, be greatly optimized fingerprint imaging quality, improve image detail and divide
Resolution.Its field range of imaging modules that multi-disc lens are constituted is wide, and focal length is short, is suitable to closer distance
Image objects, increases optical path length compared to conventional fingerprint harvester by reflecting mirror and reduces fingerprint
The method of harvester volume, uses the fingerprint acquisition device of imaging modules of the present utility model without increasing
Add the opticses such as reflecting mirror and can realize miniaturization so that whole fingerprint acquisition device structure is simpler
Single, cost is lower.
The imageing sensor of imaging modules described in the utility model has certain angle of inclination, necessarily
Correct in degree owing to object plane tilts the distortion produced, alleviate the difficulty of fingerprint algorithm correction, and can
The object plane being adapted to wider range tilts.
It addition, imaging modules Highgrade integration described in this utility model, can be as a single mould
Block carries out mass production, it is simple to the optical focusing of mass and test, adopts compared to traditional fingerprint
Optics in acquisition means is separate part, individually debug after every fingerprint instrument assembling and
Speech, drastically increases production efficiency, reduces assembling and setting difficulty.
In sum, it is high that fingerprint acquisition device of the present utility model has image quality, and volume is little, knot
Structure is simple, and field range is wide, and assembling and setting is convenient, it is simple to mass production, can be widely applicable to little
The advantages such as type fingerprint acquisition device.
Accompanying drawing explanation
Fig. 1 is an embodiment schematic diagram of this utility model fingerprint acquisition device；
Fig. 2 is an embodiment schematic diagram of the optical prism of this utility model fingerprint acquisition device；
Fig. 3 is an embodiment schematic diagram of the imaging modules of this utility model fingerprint acquisition device；
Fig. 4 is another embodiment schematic diagram of the optical prism of this utility model fingerprint acquisition device；
Fig. 5 is another embodiment schematic diagram of the imaging modules of this utility model fingerprint acquisition device；
Fig. 6 is an embodiment schematic diagram of the optical system of this utility model fingerprint acquisition device；
Fig. 7 is the structural representation of three kinds of different fingerprint acquisition device optical systems；
Fig. 8 is the optical indicatrix figure of three kinds of different fingerprint acquisition device optical systems of Fig. 7.
Detailed description of the invention
Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that this practicality
Novel to solve the technical problem that, technical scheme and advantage are easier to be readily appreciated by one skilled in the art,
Thus protection domain of the present utility model is made apparent clear and definite defining.
This utility model embodiment provides a kind of fingerprint acquisition device 1, as shown in Figure 1, Figure 2 and Fig. 3
Shown in, including: optical prism 20, imaging modules 10, light source 40, main circuit board 50 and encapsulating shell
30, described optical prism 20 is right-angled trapezium prism, and described optical prism 20 includes the most parallel
Fingerprint collecting face 201 and bottom surface 202,203 reflectings surface at two ends, left and right and exiting surface 204 and two
Individual side (not shown), described reflecting surface 203 meets with described bottom surface 202 angle β: 95 °
≤ β≤125 °, reflecting surface 203 is coated with reflectance coating；Described imaging modules 10 is positioned at optical prism 20
Exiting surface 204 side, its optical axis is parallel with the imaging optical axis of optical prism 20, described imaging modules
10 set gradually multi-disc lens 001 and imageing sensor 002 along optical axis direction, and described lens 001 hang down
Directly arrange in optical axis, described imageing sensor 002 and the angled setting of optical axis vertical direction, its
Angulation θ meets: 0 ° of ＜ θ≤10 °.
This utility model embodiment fingerprint image light has only to the reflecting surface by described optical prism
Primary event, can so that fingerprint image reflection light going out through described optical prism in the horizontal direction
Bright finish propagates to described imaging modules, and without bottom reflection, the polishing to bottom surface requires relatively low, fall
The low difficulty of processing of prism, and, with the primary event type prism phase there is identical fingerprints gathering face
Ratio, this utility model shortens light path, reduces the length of prism, and then fingerprint acquisition device is whole
Body volume reduces.It addition, imaging modules described in this utility model embodiment is for using multi-disc lens structure
The imaging system become, its multi-disc lens at least include two panels sphere or non-spherical lens, preferably aspheric
Face lens, use multi-disc lens to carry out fingerprint imaging, and the optics adding whole imaging optical system is adjusted
Whole degree of freedom, i.e. adjustable variable number amount are significantly increased, such as: the refractive index of lens, dispersion system
Number, spacing etc. between the curvature of lens, the thickness of lens, asphericity coefficient, lens, by the most excellent
Change the parameters adjusting lens, so that aberration correction is to minimum, make whole system image quality
Good, thus improve image detail resolution.Furthermore, due to the basic one-tenth of optical fingerprint harvester
As principle be the total reflection utilizing light to realize the high-contrast of fingerprint collecting image, for making finger contact
Fingerprint collecting face produces total reflection, and the optical axis of optical system and fingerprint collecting face need to there is certain inclining
Rake angle, by using optical prism as the face of collection, will pass through lens imaging to picture after light ray bending
Face (i.e. imageing sensor), and due to the existence at this angle of inclination, fingerprint imaging to image planes is inevitable
Being the picture of a distortion, it has considerable influence to fingerprint recognition precision, it is therefore desirable to pass through optical design
Or software algorithm processes and reduces or correcting distorted, use the correcting distorted general need of traditional optical design
Will more complicated prism and lens combination, it is sufficiently bulky, design complexity, therefore the most general
Software algorithm is used to carry out the correction of pattern distortion.This utility model embodiment for fingerprint collecting
Imaging modules uses imageing sensor and the angled setting of optical axis vertical direction so that image planes are relative
An angle of inclination is there is also, it is possible to reduce to a certain extent owing to object plane tilts generation in optical axis
Distortion, reduces the difficulty of fingerprint algorithm correction, and method the most easily realizes.
Further, as shown in Figure 4, the bottom surface bag of the optical prism described in this utility model embodiment
Including delustring region 2022 and light source incidence region 2021, described delustring region 2022 processes through delustring.
The delustring region 2022 of described optical prism bottom surface processes through delustring, such as delustring paint, described delustring
Region 2022 primarily serves the fingerprint image by being gathered provides a dark background to strengthen picture contrast
Improve picture quality, the effect of part veiling glare can also be eliminated simultaneously.Described delustring region 2022
Size according to the fingerprint collecting window size of described fingerprint acquisition device be adjusted set.Described light
The light that source incident area 2021 is launched for described light source injects described optical prism to illuminate fingerprint
Collection face.
Further, reflecting surface described in this utility model embodiment is preferably with the angle β of bottom surface
108°。
Further, angle, θ described in this utility model embodiment is according to the parameter of multi-disc lens, multi-disc
Distance, object plane angle of inclination between lens and imageing sensor are calculated.Consider multi-disc saturating
The lens parameters such as the material behavior of mirror, thickness, radius of curvature, aspheric circular cone coefficient, multi-disc is saturating
Spacing between mirror, between multi-disc lens and imageing sensor, object plane angle of inclination and object distance etc. because of
Element, makes the distortion aberration of become image reach a smaller value by software simulative optimization, thus obtains
Now image planes angle of inclination, namely imageing sensor and optical axis vertical direction angulation θ.
Further, the imageing sensor of imaging modules described in this utility model embodiment is vertical with optical axis
Direction is counterclockwise, and angulation θ is 4.8 °.
Further, imaging modules adaptable object plane angle of inclination model described in this utility model embodiment
Enclose is 35 ° to 60 °.It is to say, as it is shown in figure 5, when image planes cant angle theta=4.8 °, object plane inclines
When tiltedly scope α is 35 ° to 60 °, by the simple spacing adjusting imaging modules and object plane, all
The distorted image difference that can make become image is reduced to a smaller value, the most correcting distorted, fall
The difficulty of low subsequent fingerprint systems soft ware algorithm correction, the therefore imaging modules of this utility model embodiment
The object plane being adaptable to wider range tilts.
Further, imaging modules described in this utility model embodiment along the object distance range of optical axis direction is
30mm to 50mm.As it is shown in figure 5, in whole optical finger print image forming system, object plane is (permissible
Real object plane or virtual object plane) along optical axis direction to object distance L of imaging modules be 30
Mm to 50mm, for existing optical finger print image forming system, this utility model embodiment
Shorter for the object distance of the imaging modules of fingerprint collecting, it is advantageously implemented the little of whole fingerprint acquisition device
Type.
Further, described in this utility model embodiment, the focal length of imaging modules is 1mm to 5mm,
The angle of visual field is 70 ° to 90 °.The imaging modules of this utility model embodiment is short burnt wide angle micro mirror
Head, its focal length is the shortest, and whole modular volume is the least, and its angle of visual field is wider, it is simple to enter in closer distance
Row imaging, increases optical path length reduction fingerprint compared to conventional fingerprint harvester by reflecting mirror and adopts
The method of acquisition means volume, use this utility model embodiment imaging modules fingerprint acquisition device without
Increase the opticses such as reflecting mirror and can realize miniaturization so that harvester structure is simpler, cost
Lower.
Further, as it is shown in figure 5, the imaging modules of fingerprint collecting described in this utility model embodiment
Also include lens barrel 003 and microscope base 004, in wherein multi-disc lens 001 are embedded in lens barrel 003 successively,
Lens barrel 003 is fixed on one end of microscope base 004, and imageing sensor 002 is embedded in another of microscope base 004
End.The imaging modules for fingerprint collecting of this utility model embodiment can also include diaphragm 005 He
Optical filter 006, wherein diaphragm 005 is for controlling to enter the light of imaging modules, contributes to adjustment figure
As overall definition and brightness, being preferably disposed between multi-disc lens, optical filter 006 is arranged at multi-disc
The rear end of lens, it is visible ray narrow band pass filter, and filter range is used up according to fingerprint acquisition device
Depending on source, 495nm to the 555nm green band that preferred image sensor sensitivity is the highest.This reality
A single module can be packaged into by the imaging modules for fingerprint collecting of new embodiment, carry out
Mass production, it is simple to the optical focusing of mass and test, compared to traditional fingerprint acquisition device
In optics be separate part, for individually debugging after every fingerprint instrument assembling, greatly
Improve production efficiency, reduce assembling and setting difficulty.
Further, fingerprint acquisition device described in this utility model embodiment also includes face glass sum
According to coffret, described face glass is sapphire glass or safety glass, under described face glass
Side arranges optical prism；Described light source is OLED planar light source, and described light source is positioned at described optics rib
Below the light source incidence region of mirror bottom surface；Described main circuit board connects light source and imageing sensor；Described
Light source and main circuit board are arranged side by side the lower section in optical prism.The glass surface of this utility model embodiment
Plate be sapphire glass or safety glass, sapphire glass or safety glass have that hardness is high, scratch resistance
The advantages such as wiping, can effectively prevent fingerprint collecting district from being scratched, and extend the use longevity of fingerprint acquisition device
Life, sapphire glass or safety glass transparent clear simultaneously so that fingerprint acquisition device overall appearance is more
Add harmonious attractive in appearance；The data transmission interface of this utility model embodiment can be USB interface, serial ports,
One or more in the interface type such as infrared interface and blue tooth interface, meet various application scenarios or
The needs of user.
The imaging modules of this utility model embodiment is described below in detail with two specific embodiments:
Embodiment one:
As shown in Figure 6, Fig. 6 is imaging modules 10 and the fingerprint collecting of right-angled trapezium prism 20 composition
Optical system.In Fig. 6, the upper surface of right-angled trapezium prism is the most real object plane in fingerprint collecting face, front
End inclined plane is reflecting surface, and it is virtual object plane that fingerprint collecting face is reflected the object plane after the mirror image of face, virtual
Object plane is 39.11mm along object distance L1 between optical axis direction and imaging modules, virtual object plane and optical axis
The angle α counterclockwise 1 of vertical direction is 54 °, i.e. object plane angle of inclination is 54 °.This enforcement is described
The imaging modules wide accommodation of the fingerprint collecting optical system of example, the object plane being suitable for wider range inclines
Tiltedly.
Embodiment two:
As it is shown in fig. 7, the imaging modules that Fig. 7 A is imageing sensor and inclined light shaft certain angle θ
The fingerprint collecting optical system constituted with right-angled trapezium prism；Fig. 7 B is that imageing sensor hangs down with optical axis
The fingerprint collecting optical system that straight imaging modules and right-angled trapezium prism are constituted；Fig. 7 C is a convex lens
The fingerprint collecting optical system that mirror and right-angled trapezium prism are constituted.
Optical indicatrix such as Fig. 8 that above-mentioned fingerprint collecting optical system obtains is simulated by optical software
Shown in.Fig. 8 A, B are respectively the distortion performance figure of the fingerprint collecting optical system of Fig. 7 B and Fig. 7 A.
Fig. 8 C, D are respectively the disc of confusion performance plot of the fingerprint collecting optical system of Fig. 7 A and Fig. 7 C.Reason
Be thought of as seem an ideal point thing through optical system imaging or a some thing, but owing to optical system is deposited
At aberration, what an actual ideal point thing obtained through optical system imaging is a diffraction image, because
The bore of general optical system is all circular, and diffraction image is exactly a disc of confusion, and two discs of confusion are close
Afterwards with regard to bad differentiation, thus limiting the resolution of optical system, disc of confusion is the biggest, and resolution is more
Low, imaging is the poorest.Distortion is the one of aberration, and the straight line on object becomes after optical system imaging
Become the line of bending, bend the biggest, distort the biggest.The quality of visible a fingerprint collecting product design,
Distortion and disc of confusion are important assessment parameters.
The imageing sensor using this utility model embodiment imaging modules is can be seen that from Fig. 8 A, B
It is 29.61% with its distortion size of fingerprint collecting optical system of inclined light shaft certain angle θ, and schemes
Fingerprint collecting optical system its distortion size vertical with optical axis as sensor is 39.27%, explanatory diagram
8A imageing sensor becomes with the fingerprint collecting optical system of the imaging modules of inclined light shaft certain angle θ
Picture element amount is better than the fingerprint collecting optical system of Fig. 8 B, and imaging modules uses imageing sensor and optical axis
Tilt certain angle and contribute to reducing the distortion of optical system.
The fingerprint collecting of imageing sensor and inclined light shaft certain angle θ is can be seen that from Fig. 8 C, D
The optical system minimum 1.14um of its disc of confusion radius, is 6.37um to the maximum, and a convex lens conduct
The fingerprint collecting optical system of the imaging modules minimum 1.54um of its disc of confusion radius, is 17.64 to the maximum
Um, explanatory diagram 7A uses imageing sensor and the inclined light shaft of this utility model embodiment imaging modules
The image quality of the fingerprint collecting optical system of certain angle θ and resolution are better than the fingerprint of Fig. 7 C and adopt
Collection optical system, imaging modules uses multi-disc lens to add the degree of freedom of optical correction, significantly optimizes
Fingerprint image image quality, improves image detail resolution.It addition, Fig. 7 A is compared to 7C
Fingerprint collecting optical system length significantly smaller, illustrate use this utility model embodiment imaging mould
Group is advantageously implemented the miniaturization of whole fingerprint acquisition device.
It is high that the fingerprint acquisition device of embodiment described in the utility model has image quality, and volume is little, knot
Structure is the compactest, and field range is wide, and assembling and setting is convenient, it is simple to mass production, can extensively adapt to
In advantages such as miniaturization fingerprint acquisition devices.
The above is preferred implementation of the present utility model, it is noted that for the art
Those of ordinary skill for, on the premise of without departing from principle described in the utility model, it is also possible to make
Going out some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (10)
1. a fingerprint acquisition device, it is characterised in that described fingerprint acquisition device includes: optics
Prism, imaging modules, light source, main circuit board and encapsulating shell, described optical prism is right-angled trapezium rib
Mirror, described optical prism includes the most parallel fingerprint collecting face and bottom surface, the reflecting surface at two ends, left and right
With exiting surface and two sides, described reflecting surface meets with described bottom surface angle β: 95 °
≤ β≤125 °, reflecting surface is coated with reflectance coating；Described imaging modules is positioned at optical prism exiting surface side,
Its optical axis is parallel with the imaging optical axis of optical prism, and described imaging modules sets gradually many along optical axis direction
Sheet lens and imageing sensor, described vertical lens is arranged in optical axis, described imageing sensor and optical axis
The angled setting of vertical direction, its angulation θ meets: 0 ° of ＜ θ≤10 °.
Fingerprint acquisition device the most according to claim 1, it is characterised in that described optics rib
The bottom surface of mirror includes delustring region and light source incidence region, and described delustring region processes through delustring.
Fingerprint acquisition device the most according to claim 1, it is characterised in that described reflecting surface
It it is 108 ° with the angle β of bottom surface.
Fingerprint acquisition device the most according to claim 1, it is characterised in that described angle, θ
Parameter according to multi-disc lens, the distance between multi-disc lens and imageing sensor, object plane angle of inclination
It is calculated.
Fingerprint acquisition device the most according to claim 4, it is characterised in that described image passes
Sensor is 4.8 ° with the angulation θ counterclockwise of optical axis vertical direction.
Fingerprint acquisition device the most according to claim 5, it is characterised in that described object plane inclines
Rake angle scope is 35 ° to 60 °.
Fingerprint acquisition device the most according to claim 5, it is characterised in that described imaging mould
Group is 30mm to 50mm along the object distance range of optical axis direction.
Fingerprint acquisition device the most according to claim 5, it is characterised in that described imaging mould
The focal length of group is 1mm to 5mm, and the angle of visual field is 70 ° to 90 °.
9. according to the arbitrary described fingerprint acquisition device of claim 1 to 8, it is characterised in that institute
Stating imaging modules and also include that lens barrel and microscope base, described multi-disc lens are embedded in lens barrel successively, lens barrel is solid
Being scheduled on one end of microscope base, described imageing sensor is embedded in the other end of microscope base.
Fingerprint acquisition device the most according to claim 9, it is characterised in that described fingerprint is adopted
Acquisition means also includes that face glass and data transmission interface, described face glass are sapphire glass or steel
Changing glass, the lower section of described face glass arranges optical prism；Described light source is OLED planar light source,
Described light source is positioned at below the light source incidence region of described optical prism bottom surface；Described main circuit board connects
Light source and imageing sensor；Described light source and main circuit board are arranged side by side the lower section in optical prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620238953.6U CN205486177U (en) | 2016-03-25 | 2016-03-25 | Fingerprints collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620238953.6U CN205486177U (en) | 2016-03-25 | 2016-03-25 | Fingerprints collector |
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| Publication Number | Publication Date |
|---|---|
| CN205486177U true CN205486177U (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620238953.6U Active CN205486177U (en) | 2016-03-25 | 2016-03-25 | Fingerprints collector |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107516089A (en) * | 2017-09-08 | 2017-12-26 | 北京眼神科技有限公司 | A kind of fingerprint acquisition device |
| CN109196521A (en) * | 2018-08-21 | 2019-01-11 | 深圳市汇顶科技股份有限公司 | Lens system, fingerprint identification device and terminal device |
| CN109196519A (en) * | 2018-08-21 | 2019-01-11 | 深圳市汇顶科技股份有限公司 | Lens system, fingerprint identification device and terminal device |
| CN109417591A (en) * | 2018-09-25 | 2019-03-01 | 深圳市汇顶科技股份有限公司 | Optical image acquisition device and electronic equipment |
| CN109564338A (en) * | 2018-11-08 | 2019-04-02 | 深圳市汇顶科技股份有限公司 | Lens group, fingerprint identification device and electronic equipment |
| CN112399040A (en) * | 2019-08-16 | 2021-02-23 | 印象认知（北京）科技有限公司 | Divide visual field imaging module and terminal equipment |
| EP3805983A4 (en) * | 2018-06-08 | 2021-07-21 | Vivo Mobile Communication Co., Ltd. | Optical fingerprint recognition assembly and terminal |
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2016
- 2016-03-25 CN CN201620238953.6U patent/CN205486177U/en active Active
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107516089A (en) * | 2017-09-08 | 2017-12-26 | 北京眼神科技有限公司 | A kind of fingerprint acquisition device |
| EP3805983A4 (en) * | 2018-06-08 | 2021-07-21 | Vivo Mobile Communication Co., Ltd. | Optical fingerprint recognition assembly and terminal |
| US11430251B2 (en) | 2018-06-08 | 2022-08-30 | Vivo Mobile Communication Co., Ltd. | Optical fingerprint identification assembly and terminal |
| CN111931659A (en) * | 2018-08-21 | 2020-11-13 | 深圳市汇顶科技股份有限公司 | Lens system, fingerprint identification device and terminal equipment |
| WO2020037508A1 (en) * | 2018-08-21 | 2020-02-27 | 深圳市汇顶科技股份有限公司 | Lens system, fingerprint identification device and terminal device |
| US11366290B2 (en) | 2018-08-21 | 2022-06-21 | Shenzhen GOODIX Technology Co., Ltd. | Lens system, fingerprint identification apparatus and terminal device |
| CN112036374A (en) * | 2018-08-21 | 2020-12-04 | 深圳市汇顶科技股份有限公司 | Lens system, fingerprint identification device and terminal equipment |
| US11774708B2 (en) | 2018-08-21 | 2023-10-03 | Shenzhen GOODIX Technology Co., Ltd. | Lens system, fingerprint identification apparatus and terminal device |
| CN109196519A (en) * | 2018-08-21 | 2019-01-11 | 深圳市汇顶科技股份有限公司 | Lens system, fingerprint identification device and terminal device |
| CN111931659B (en) * | 2018-08-21 | 2021-05-14 | 深圳市汇顶科技股份有限公司 | Lens system, fingerprint identification device and terminal equipment |
| CN109196521A (en) * | 2018-08-21 | 2019-01-11 | 深圳市汇顶科技股份有限公司 | Lens system, fingerprint identification device and terminal device |
| CN109196521B (en) * | 2018-08-21 | 2022-04-05 | 深圳市汇顶科技股份有限公司 | Lens system, fingerprint identification device and terminal equipment |
| CN109417591A (en) * | 2018-09-25 | 2019-03-01 | 深圳市汇顶科技股份有限公司 | Optical image acquisition device and electronic equipment |
| CN109564338A (en) * | 2018-11-08 | 2019-04-02 | 深圳市汇顶科技股份有限公司 | Lens group, fingerprint identification device and electronic equipment |
| CN109564338B (en) * | 2018-11-08 | 2020-12-11 | 深圳市汇顶科技股份有限公司 | Lens group, fingerprint identification device and electronic equipment |
| CN112399040A (en) * | 2019-08-16 | 2021-02-23 | 印象认知（北京）科技有限公司 | Divide visual field imaging module and terminal equipment |
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