CN205692181U - Concealed fingerprint capturer - Google Patents
Concealed fingerprint capturer Download PDFInfo
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- CN205692181U CN205692181U CN201620441953.6U CN201620441953U CN205692181U CN 205692181 U CN205692181 U CN 205692181U CN 201620441953 U CN201620441953 U CN 201620441953U CN 205692181 U CN205692181 U CN 205692181U
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- cover plate
- transparent cover
- luminous organ
- ink layer
- lower section
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Abstract
This utility model embodiment discloses a kind of concealed fingerprint capturer, including transparent cover plate, support and luminous organ.The lower surface of cover plate is coated with ink layer；The aperture of multiple light-permeables of uniform array is had on ink layer.Support is arranged on the lower section of ink layer, and circuit substrate is installed in the bottom of support；Support, the upper surface of circuit substrate and ink layer lower surface surround cavity.In cavity, the lower section of cover plate be provided with aperture plate, the upper surface of aperture plate is provided with light shield layer, and light shield layer has the aperture of multiple light-permeables of uniform array.Aperture position on light shield layer is corresponding to the underface of ink layer aperture.The lower section of aperture plate arranges image acquisition device.Luminous organ is arranged at containment portion and launches oblique light ray to cover plate.This utility model can make fingerprint capturer be placed in the lower panels scribbling ink, and can not affect the outward appearance of electronic equipment, can also meet the demand that electronic equipment is more ultra-thin simultaneously.
Description
Technical field
This utility model relates to acquisition technology field, is specifically related to a kind of concealed fingerprint capturer.
Background technology
Generally, coating printing ink etc. visible ray can be had cover below the transparent cover plate of some electronic equipments (such as smart mobile phone)
The material of effect, with at transparent cover plate maskant formed below, makes the transparent cover plate of electronic equipment present and ink simultaneously
The color that color is identical, to increase the aesthetic property of equipment.Concealed fingerprint capturer is i.e. to be installed on fingerprint capturer to cover
Under coating, it is not necessary to destroy maskant or on the cover board perforate or grooving and invisible at electronic device exterior, and then
Keep the concordance of electronic equipment appearance and improve the crash resistance of equipment.
Inventor of the present utility model once disclosed a kind of slim in the patent of Application No. CN201520290873.0
Optical fingerprint collector.Fig. 1 shows the structural representation of disclosed thin optical fingerprint collector.As it is shown in figure 1, slim light
Learn fingerprint capturer to include light guide plate 1, be arranged at the luminescent device 2 of light guide plate lateral surface, be arranged at the support below light guide plate
7, the bottom of support connects the cavity surrounded between accessory circuit plate 9, and support 7 and accessory circuit plate 9 and is provided with fingerprint chip
8, electrically connect with accessory circuit plate 9 under fingerprint chip.Fingerprint capturer shown in Fig. 1 by separately positioned with support 7 for luminescent device 2,
Its convenient processing, and compact, thickness are thin.
Owing to near-infrared light source or infrared light supply can penetrate ink, in the fingerprint capturer conduct using said structure
During stealthy harvester, only luminescent device 2 need to be made to send near-infrared light source or infrared light supply, slim concealed fingerprint can be become
Harvester.
When electronic equipment tends to superthin structure, electronic equipment manufacturer needs the most frivolous concealed fingerprint capturer,
The thickness how making existing slim concealed harvester can guarantee that again the attractive in appearance of electronic equipment while of reduction, becomes the art
The technical barrier that personnel are urgently to be resolved hurrily.
Utility model content
Goal of the invention of the present utility model is to provide a kind of concealed fingerprint capturer, adopts compared to existing optical finger print
Storage, its thickness is thinner, and does not the most affect the outward appearance of electronic equipment.
According to an aspect of the present utility model, it is provided that a kind of concealed fingerprint capturer, including transparent cover plate, support,
Luminous organ, image acquisition device and circuit substrate,
The lower surface of described cover plate is coated with ink layer；Multiple apertures of uniform array are had on described ink layer；
Described support is arranged on the lower section of ink layer, and described circuit substrate is installed in the bottom of described support；Described support, electricity
Upper surface and the described ink layer lower surface of base board surround cavity；
In described cavity, the lower section of described cover plate be provided with aperture plate, the upper surface of described aperture plate is provided with light shield layer, institute
State the aperture of the multiple light-permeables having uniform array on light shield layer；Aperture position on described light shield layer is little corresponding to ink layer
The underface in hole；
Described image acquisition device is arranged at the lower section of described aperture plate；
Described luminous organ is arranged at described containment portion and launches the inclination that can pass through described ink layer to described cover plate
Light.
Wherein, the folder after described oblique light ray enters described transparent cover plate and between described transparent cover plate surface normal direction
Angle is α, and described α meets: arcsin (n1/n0)≤α≤arcsin(n2/n0)；
Wherein, n1For the refractive index of the outer medium of transparent cover plate during non-stamp finger, n2For the refractive index of finger surface, n0For
The refractive index of transparent cover plate.
Preferably, described luminous organ is arranged at lower section, side or the top of transparent cover plate peripheral, described of described support
Position；
Be filled with transparent optical cement between described luminous organ and described transparent cover plate, the refractive index of described transparent optical cement with
Described transparent cover plate refractive index is same or similar.
As one of which preferred version, described luminous organ is arranged under the transparent cover plate peripheral, described of described support
Side；Angle between central optical axis direction and the described transparent cover plate lower surface of described luminous organ is 90 ° of-α.
As another preferred version, described luminous organ is arranged at the lower section of the transparent cover plate peripheral, described of described support；Institute
The central optical axis direction stating luminous organ is parallel with described transparent cover plate lower surface；
Reflecting surface, described reflecting surface and described transparent cover plate lower surface it is additionally provided with between described luminous organ and described support
Between angle be (90 ° of-α)/2.
It is further preferred that be additionally provided with longitudinal diffusion groove on described reflecting surface.
Preferably, described luminous organ is for launching near infrared near-infrared luminous device or launching ultrared infraluminescence
Device.
According to another aspect of the present utility model, additionally provide a kind of concealed fingerprint capturer, including transparent cover plate, prop up
Frame, luminous organ, image acquisition device and circuit substrate,
The lower surface of described cover plate is from top to bottom coated with the clear ink layer of light-permeable and lighttight light shield layer；Described
The area of clear ink layer is more than the area of described light shield layer；Multiple apertures of uniform array are had on described light shield layer；
Described support is arranged on the lower section of light shield layer, and described circuit substrate is installed in the bottom of described support；Described support, electricity
Upper surface and the described light shield layer lower surface of base board surround cavity；
In described cavity, the lower section of described light shield layer be provided with light-passing board, the lower section of described light-passing board arranges described image
Harvester；
Described luminous organ is arranged at described containment portion and can pass through described clear ink layer to the transmitting of described cover plate
Oblique light ray.
Wherein, the folder after described oblique light ray enters described transparent cover plate and between described transparent cover plate surface normal direction
Angle is α, and described α meets: arcsin (n1/n0)≤α≤arcsin(n2/n0)；
Wherein, n1For the refractive index of the outer medium of transparent cover plate during non-stamp finger, n2For the refractive index of finger surface, n0For
The refractive index of transparent cover plate.
Preferably, described luminous organ is arranged at lower section, side or the top of transparent cover plate peripheral, described of described support
Position；
Be filled with transparent optical cement between described luminous organ and described transparent cover plate, the refractive index of described transparent optical cement with
Described transparent cover plate refractive index is similar.
One of preferably, described luminous organ is arranged at the lower section of the transparent cover plate peripheral, described of described support；Institute
Stating the angle between the central optical axis direction of luminous organ and described transparent cover plate lower surface is 90 ° of-α.
As another preferred version, described luminous organ is arranged at the lower section of the transparent cover plate peripheral, described of described support；Institute
The central optical axis direction stating luminous organ is parallel with described transparent cover plate lower surface；
Reflecting surface, described reflecting surface and described transparent cover plate lower surface it is additionally provided with between described luminous organ and described support
Between angle be (90 ° of-α)/2.
Preferably, described reflecting surface is additionally provided with longitudinal diffusion groove.
Preferably, described light shield layer is lighttight ink layer；Described luminous organ is sent out for launching near infrared near-infrared
Light device or launch ultrared infrared illuminator.
As another further aspect of the present utility model, additionally provide a kind of concealed fingerprint capturer, including transparent cover plate, prop up
Frame, luminous organ, image acquisition device and circuit substrate,
First ink layer that described cover plate lower surface is coated with light-permeable, that constitute closed ring；Described support is arranged on
The lower section of the first ink layer, described circuit substrate is installed in the bottom of described support；Described support, the upper surface of circuit substrate and institute
State transparent cover plate lower surface and surround cavity；
In described cavity, the lower section of described cover plate the aperture plate being coated with lighttight second ink layer is set, described
Multiple apertures of uniform array are had on second ink layer of aperture plate；The edge of described aperture plate upper surface and closed ring
The inner annular edge of the first ink layer abuts；The region of the uncoated ink that the first ink layer inner annular edge surrounds and described aperture plate
Upper surface forms air layer；
Described image acquisition device is arranged at the lower section of described aperture plate；
Described luminous organ is arranged at described containment portion and launches the light that can pass through the first ink layer to described cover plate.
Wherein, the folder after described oblique light ray enters described transparent cover plate and between described transparent cover plate surface normal direction
Angle is α, and described α meets: arcsin (n1/n0)≤α≤arcsin(n2/n0)；
Wherein, n1For the refractive index of the outer medium of transparent cover plate during non-stamp finger, n2For the refractive index of finger surface, n0For
The refractive index of transparent cover plate.
Preferably, described luminous organ is arranged at lower section, side or the top of transparent cover plate peripheral, described of described support
Position；
Be filled with transparent optical cement between described luminous organ and described transparent cover plate, the refractive index of described transparent optical cement with
Described transparent cover plate refractive index is identical or approximates.
As one of which preferred version, described luminous organ is arranged under the transparent cover plate peripheral, described of described support
Side；Angle between central optical axis direction and the described transparent cover plate lower surface of described luminous organ is 90 ° of-α.
As another preferred version, described luminous organ is arranged at the lower section of the transparent cover plate peripheral, described of described support；Institute
The central optical axis direction stating luminous organ is parallel with described transparent cover plate lower surface；
Reflecting surface, described reflecting surface and described transparent cover plate lower surface it is additionally provided with between described luminous organ and described support
Between angle be (90 ° of-α)/2.
It is further preferred that be additionally provided with longitudinal diffusion groove on described reflecting surface.
Preferably, described luminous organ is for launching near infrared near-infrared luminous device or launching ultrared infraluminescence
Device.
From above technical scheme, the concealed fingerprint capturer in the embodiment of the present application, adopt compared to existing fingerprint
Storage is compared, and eliminates light guide plate, and the distance between transparent cover plate and image acquisition device is significantly reduced, makes concealed collection
The thickness of device is thinner to be possibly realized, and does not the most affect the outward appearance of electronic equipment simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
The accompanying drawing used required in is briefly described, it should be apparent that, the accompanying drawing in describing below is the most of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to this
A little accompanying drawings obtain other accompanying drawing.
Fig. 1 shows the structural representation of disclosed thin optical fingerprint collector；
Fig. 2 is according to a structural representation being preferable to carry out the concealed fingerprint capturer exemplified；
According to Fig. 3, another is preferable to carry out the structural representation of the concealed fingerprint capturer exemplified；
Fig. 4 is the structural representation according to the concealed fingerprint capturer shown in further embodiment；
Fig. 5 is the structural representation according to the concealed fingerprint capturer shown in further embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clear, complete description, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
Below by specific embodiment, the structure and working principle of fingerprint capturer concealed in the application is carried out in detail
Illustrate.
Fig. 2 is according to a structural representation being preferable to carry out the concealed fingerprint capturer exemplified.As in figure 2 it is shown, it is hidden
Concealed fingerprint capturer includes transparent cover plate 101, support 102, luminous organ 103, image acquisition device 104 and circuit substrate 105.
The lower surface of transparent cover plate 101 is coated with ink layer 106.Having the multiple of uniform array on ink layer 106 can be saturating
The aperture 107 of light.Support 102 is arranged on the lower section of ink layer, and circuit substrate 105 is installed in the bottom of support 102.Support 102, electricity
Upper surface and the ink layer lower surface of base board 105 surround hollow cavity.
In cavity, the lower section of cover plate be provided with aperture plate 108.The upper surface of aperture plate 108 is provided with light shield layer 109, shading
The aperture 110 of multiple light-permeables of uniform array is had on layer 109.Aperture 110 position on light shield layer 109 corresponds to ink layer
The underface of aperture.Preferably, the aperture of the aperture 110 on light shield layer is less than the aperture of ink layer aperture 107.Image acquisition device
104 lower sections being arranged at aperture plate.Image acquisition device is fixed on circuit substrate 105 and electric with the circuit in circuit substrate 105
Connect.
It should be noted that the aperture of light shield layer aperture is exemplary less than the aperture of ink layer aperture, this enforcement
In example on light shield layer aperture aperture and on ink layer magnitude relationship between the aperture of aperture be not specifically limited, as long as
Meet the light injected by light shield layer aperture to be incident on image acquisition device by ink layer aperture and aperture plate.
Luminous organ 103 is arranged at containment portion and launches oblique light ray to cover plate.Preferably, luminous organ is for launching near-infrared
The near-infrared luminous device of line or launch ultrared infrared illuminator.With transparency cover after oblique light ray entrance transparent cover plate 101
Angle between plate 101 surface normal direction is that α, α meet: arcsin (n1/n0)≤α≤arcsin(n2/n0)；Wherein, n1For
The refractive index of the outer medium of transparent cover plate 101, n during non-stamp finger2For the refractive index of finger surface, n0Folding for transparent cover plate 101
Penetrate rate.For example, n is worked as1=1.0 (refractive indexs of air), n2=1.33, n0Time=1.5 (refractive index of glass), by meter
Calculation draws 41.8 degree≤A≤62.5.When on cover plate without finger stamp, the light injected at this angle can be at the upper surface of cover plate
Form total reflection.
Realizing when 103 isolychns of luminous organ enter transparent cover plate 101 is oblique light ray, can be come real by different schemes
Existing.As the preferred embodiment in each embodiment, luminous organ 103 is arranged at the periphery of support 102 and transparent cover plate 101
Lower section, the angle between central optical axis direction and transparent cover plate 101 lower surface of luminous organ 103 is 90 ° of-α.Luminous organ 103
Angle between central optical axis direction and transparent cover plate lower surface is 90 ° of-α, is i.e. sent by the central optical axis direction of luminous organ 103
Light and transparent cover plate lower surface between angle be 90 ° of-α.
As another preferred embodiment, it is still that fall luminous organ 103 is arranged at the periphery of support 102, transparent cover plate
Lower section.According to Fig. 3, another is preferable to carry out the structural representation of the concealed fingerprint capturer exemplified.As it is shown on figure 3, with figure
Unlike embodiment shown in 2, in the scheme shown in Fig. 2, the central optical axis direction of luminous organ 103 and transparent cover plate following table
Face is parallel, i.e. the directional light parallel with transparent cover plate 101 lower surface launched by luminous organ 103.Luminous organ 103 and support 102 it
Between be additionally provided with reflecting surface 111, the angle between reflecting surface 111 and transparent cover plate 101 lower surface is (90 ° of-α)/2.
For making reflecting surface have more preferable diffusion function, further, above-mentioned reflecting surface can also make longitudinal
Spreading grooves (not shown), it is the most uniform that spreading grooves can make to incide the light in transparent cover plate 101.This
Longitudinal direction described in embodiment, the direction for paper vertical in Fig. 1 is longitudinally.
The above-mentioned position being arranged on by luminous organ 103 below support 102 periphery, transparent cover plate 101 is the most preferred
Scheme, is not intended to limit the installation site of luminous organ 103.As other embodiments, the luminous organ 103 in the application also may be used
It is arranged on the side of transparent cover plate 101, or the top of transparent cover plate 101.The application arranges position for luminous organ 103
Be not specifically limited, if can make the light that luminous organ sends enter after transparent cover plate 101 with transparent cover plate surface normal side
Angle between to is that the position of α each falls within protection domain of the present utility model.
Can be incident in transparent cover plate with set angle for realizing the light of luminous organ, the application preferably, in luminescence
Be filled with transparent optical cement between device and transparent cover plate, the refractive index of transparent optical cement identical with described transparent cover plate refractive index or
Approximation.
Concealed fingerprint capturer in above-described embodiment is in place of existing fingerprint capturer difference, and dispenses
Light guide plate in existing fingerprint capturer and air layer, therefore its thickness is the most thinning.Below to hiding in above-described embodiment
The operation principle of formula fingerprint capturer is described in detail.
When concealed fingerprint capturer is in "on" position, the oblique light ray that luminous organ 103 is launched is through transparent cover plate 101
The ink layer 106 of lower surface is totally reflected in transparent cover plate 101.When there being finger stamp on transparent cover plate 101, due to
The surface of fingerprint is distributed with ridge and paddy, and the ridge on fingerprint is in close contact with transparent cover plate 101, and light is at transparent cover plate 101 and sky
Reflect, be irradiated to via the aperture on light shield layer and the aperture on ink layer the sensitive piece of image acquisition device 104 at the interface of gas
On.During due to finger stamp on transparent cover plate 101, the ridge on fingerprint contacts with transparent cover plate 101, destroys being all-trans of light
Penetrate, a part of light effusion transparent cover plate 101, finger surface is illuminated, and reflects through finger surface, through imaging aperture, by
This forms fingerprint image clearly on the image sensor.
According to another aspect of the present utility model, additionally provide a kind of concealed fingerprint capturer, the fingerprint of this kind of structure
Harvester is used in the electronic equipment of the sunk structures such as cover plate aperture formed below.
Fig. 4 is the structural representation according to the concealed fingerprint capturer shown in further embodiment.As shown in Figure 4,
The structure of fingerprint capturer concealed to shown in Fig. 1 is similar, and the concealed fingerprint capturer in this embodiment includes transparency cover
Plate 401, support 402, luminous organ 403, image acquisition device 404 and circuit substrate 405.Its difference is:
In the present embodiment, transparent cover plate 401 lower surface is coated with the first ink layer 406 constituting closed ring.Support 402
Being arranged on the lower section of the first ink layer, circuit substrate is installed in the bottom of support 402.Support 402, the upper surface of circuit substrate and thoroughly
Bright cover plate 401 lower surface surrounds hollow cavity.In cavity, the lower section of cover plate arranges and is coated with lighttight second ink layer
The aperture plate 408 of 407, the upper surface of aperture plate has multiple apertures 409 of uniform array.The edge of aperture plate 408 upper surface
Abut with the inner annular edge of the first ink layer of closed ring, the region of the uncoated ink that the first ink layer inner annular edge surrounds
Air layer 410 is formed with aperture plate upper surface.Wherein it is preferred to, the thickness of described air layer 410 is more than 100 nanometers.
Image acquisition device is arranged at the lower section of aperture plate.Image acquisition device be fixed on circuit substrate and with in circuit substrate
Circuit electrical connection.
Luminous organ 403 is arranged at containment portion and launches the oblique light ray that can pass through the first ink layer to cover plate.Tilt
Angle after light enters transparent cover plate 401 and between transparent cover plate 401 surface normal direction is that α, α meet: arcsin (n1/
n0)≤α≤arcsin(n2/n0)；Wherein, the refractive index of transparent cover plate 401 outer medium when n1 is non-stamp finger, n2 is finger
The refractive index on surface, n0 is the refractive index of transparent cover plate 401.For example, n is worked as1=1.0 (refractive indexs of air), n2=
1.33, n0Time=1.5 (refractive index of glass), by calculating 41.8 degree≤A≤62.5.When on cover plate without finger stamp
Time, the light injected at this angle can form total reflection at the upper surface of cover plate.
Owing to there is air layer below cover plate, as long as therefore the angle of incidence of incident ray meets following condition: arcsin (n1/
n0)≤α≤arcsin(n2/n0), incident illumination can form total reflection in transparent cover plate 401.
Realizing when luminous organ institute isolychn enters transparent cover plate 401 is oblique light ray, can be realized by different schemes.
As the preferred embodiment in each embodiment, luminous organ is arranged at periphery and the lower section of transparent cover plate 401 of support 402,
Angle between central optical axis direction and transparent cover plate 401 lower surface of luminous organ is 90 ° of-α.The central optical axis direction of luminous organ
And the angle between transparent cover plate 401 lower surface is 90 ° of-α, and the light i.e. sent by the central optical axis direction of luminous organ is with transparent
Angle between cover plate 401 lower surface is 90 ° of-α.
As another preferred embodiment, it is still that fall luminous organ is arranged at the periphery of support 402, transparent cover plate 401
Lower section.Unlike the embodiment above, in this scenario, the central optical axis direction of luminous organ and transparent cover plate 401 following table
Face is parallel.It is additionally provided with reflecting surface between luminous organ and support 402, identical with the structure of reflecting surface in Fig. 3, the most no longer show
Go out.Angle between reflecting surface and transparent cover plate 401 lower surface is (90 ° of-α)/2.
For making reflecting surface have more preferable diffusion function, further, above-mentioned reflecting surface can also make longitudinal
Spreading grooves, it is the most uniform that spreading grooves can make to incide the light in transparent cover plate 401.Described in the present embodiment
Longitudinal direction, be longitudinally for the direction of paper vertical in Fig. 4.
Can be incident in transparent cover plate with set angle for realizing the light of luminous organ, the application preferably, in luminescence
Be filled with transparent optical cement between device and transparent cover plate, the refractive index of transparent optical cement identical with described transparent cover plate refractive index or
Approximation.
Below the operation principle of the concealed fingerprint capturer in this embodiment is described in detail.
When concealed fingerprint capturer is in "on" position, oblique light ray launched by luminous organ, and the light that luminous organ is launched is saturating
The first ink layer crossing transparent cover plate lower surface enters transparent cover plate.Owing to being reserved with air between transparent cover plate and aperture plate
Layer, so the oblique light ray that luminous organ sends is totally reflected in transparent cover plate.When there being finger stamp on transparent cover plate,
Owing to the surface of fingerprint is distributed with ridge and paddy, the ridge on fingerprint is in close contact with transparent cover plate, and light is at transparent cover plate and air
Interface at reflect, be irradiated on the sensitive piece of image acquisition device via the aperture on aperture plate upper surface the second ink layer.By
When finger stamp is on transparent cover plate 1, the ridge on fingerprint contacts with transparent cover plate 1, the total reflection of destruction oblique light ray, one
Divide oblique light ray effusion transparent cover plate 1, finger surface is illuminated, and reflects through finger surface, through imaging aperture, thus at figure
As forming fingerprint image clearly on sensor.
According to another further aspect of the present utility model, also provide for a kind of concealed fingerprint capturer.In this embodiment concealed
The structure of fingerprint capturer is similar to the structure of the concealed fingerprint capturer shown in Fig. 2.
Fig. 5 is the structural representation according to the concealed fingerprint capturer shown in further embodiment.As it is shown in figure 5,
Concealed fingerprint capturer includes transparent cover plate 501, support 502, luminous organ 503, image acquisition device 504 and circuit substrate 505.
The lower surface of cover plate 501 is from top to bottom coated with the clear ink layer 506 of light-permeable and lighttight light shield layer
507.The area of clear ink layer is more than the area of light shield layer.Multiple apertures 508 of uniform array are had on light shield layer 507.Excellent
Selection of land, light shield layer can be lighttight ink layer.
Support 502 is arranged on the lower section of light shield layer, and circuit substrate 505 is installed in the bottom of support 502.Support, circuit substrate
Upper surface and light shield layer lower surface surround cavity.In cavity and the lower section of light shield layer is provided with light-passing board 509, light-passing board
The lower section of 509 arranges image acquisition device 504.
Luminous organ is arranged at containment portion and launches the oblique light ray that can pass through clear ink layer to cover plate.Described luminescence
Device is preferably launched near infrared near-infrared luminous device or launches ultrared infrared illuminator.It is readily apparent that such as
Operculum plate relevant position does not has ink coating, then use visible light illuminator can also reach fingerprint collecting in this utility model
Function.
Wherein, in the present embodiment the setting of luminous organ with shown in Fig. 2 in concealed fingerprint capturer luminous organ phase is set
With, here is omitted.The work of concealed fingerprint capturer shown in the concealed fingerprint capturer in the present embodiment and Fig. 2 simultaneously
Make principle identical, the most also repeat no more.
From above technical scheme, the concealed fingerprint capturer in the various embodiments described above, adopt compared to existing fingerprint
Storage is compared, and eliminates light guide plate, and the distance between transparent cover plate and image acquisition device is significantly reduced, makes concealed collection
The thickness of device is thinner to be possibly realized, and does not the most affect the outward appearance of electronic equipment simultaneously.
Those skilled in the art, after considering description and putting into practice utility model disclosed herein, will readily occur to this practicality
Other novel embodiment.The application is intended to any modification of the present utility model, purposes or adaptations, these
Modification, purposes or adaptations are followed general principle of the present utility model and include undocumented technology neck of the disclosure
Common knowledge in territory or conventional techniques means.Description and embodiments is considered only as exemplary, of the present utility model really
Scope and spirit are pointed out by claim below.
It should be appreciated that this utility model is not limited to accurate side described above and illustrated in the accompanying drawings
Method, and various modifications and changes can carried out without departing from the scope.Scope of the present utility model is only wanted by appended right
Ask and limit.
Claims (21)
1. a concealed fingerprint capturer, including transparent cover plate, support, luminous organ, image acquisition device and circuit substrate, it is special
Levy and be,
The lower surface of described cover plate is coated with ink layer；Multiple apertures of uniform array are had on described ink layer；
Described support is arranged on the lower section of ink layer, and described circuit substrate is installed in the bottom of described support；Described support, circuit base
Upper surface and the described ink layer lower surface of plate surround cavity；
In described cavity, the lower section of described cover plate be provided with aperture plate, the upper surface of described aperture plate is provided with light shield layer, described screening
The aperture of multiple light-permeables of uniform array is had on photosphere；Aperture position on described light shield layer is corresponding to ink layer aperture
Underface；
Described image acquisition device is arranged at the lower section of described aperture plate；
Described luminous organ is arranged at described containment portion and launches the light that can pass through described ink layer to described cover plate.
Concealed fingerprint capturer the most according to claim 1, it is characterised in that described light enters described transparent cover plate
Angle afterwards and between described transparent cover plate surface normal direction is α, and described α meets: arcsin (n1/n0)≤α≤arcsin
(n2/n0)；
Wherein, n1For the refractive index of the outer medium of transparent cover plate during non-stamp finger, n2For the refractive index of finger surface, n0For transparent
The refractive index of cover plate.
Concealed fingerprint capturer the most according to claim 2, it is characterised in that described luminous organ is arranged at described support
Lower section, side or the top position of transparent cover plate peripheral, described；
Being filled with transparent optical cement between described luminous organ and described transparent cover plate, the refractive index of described transparent optical cement is with described
Transparent cover plate refractive index is identical or approximates.
Concealed fingerprint capturer the most according to claim 3, it is characterised in that described luminous organ is arranged at described support
The lower section of transparent cover plate peripheral, described；Between central optical axis direction and the described transparent cover plate lower surface of described luminous organ
Angle is 90 ° of-α.
Concealed fingerprint capturer the most according to claim 3, it is characterised in that described luminous organ is arranged at described support
The lower section of transparent cover plate peripheral, described；The central optical axis direction of described luminous organ is parallel with described transparent cover plate lower surface；
Reflecting surface it is additionally provided with, between described reflecting surface and described transparent cover plate lower surface between described luminous organ and described support
Angle be (90 ° of-α)/2.
Concealed fingerprint capturer the most according to claim 5, it is characterised in that be additionally provided with longitudinal expansion on described reflecting surface
Dissipate groove.
7. according to described concealed fingerprint capturer arbitrary in claim 1 to 6, it is characterised in that described luminous organ is for sending out
Penetrate near infrared near-infrared luminous device or launch ultrared infrared illuminator.
8. a concealed fingerprint capturer, including transparent cover plate, support, luminous organ, image acquisition device and circuit substrate, it is special
Levy and be,
The lower surface of described cover plate is from top to bottom coated with the clear ink layer of light-permeable and lighttight light shield layer；Described printing opacity
The area of ink layer is more than the area of described light shield layer；Multiple apertures of uniform array are had on described light shield layer；
Described support is arranged on the lower section of light shield layer, and described circuit substrate is installed in the bottom of described support；Described support, circuit base
Upper surface and the described light shield layer lower surface of plate surround cavity；
In described cavity, the lower section of described light shield layer be provided with light-passing board, the lower section of described light-passing board arranges described image acquisition
Device；
Described luminous organ is arranged at described containment portion and launches the light that can pass through described clear ink layer to described cover plate.
Concealed fingerprint capturer the most according to claim 8, it is characterised in that described light enters described transparent cover plate
Angle afterwards and between described transparent cover plate surface normal direction is α, and described α meets: arcsin (n1/n0)≤α≤arcsin
(n2/n0)；
Wherein, n1For the refractive index of the outer medium of transparent cover plate during non-stamp finger, n2For the refractive index of finger surface, n0For transparent
The refractive index of cover plate.
Concealed fingerprint capturer the most according to claim 8, it is characterised in that described luminous organ is arranged at described
Lower section, side or the top position of the transparent cover plate peripheral, described of frame；
Being filled with transparent optical cement between described luminous organ and described transparent cover plate, the refractive index of described transparent optical cement is with described
Transparent cover plate refractive index is identical or approximates.
11. concealed fingerprint capturers according to claim 10, it is characterised in that described luminous organ is arranged at described
The lower section of the transparent cover plate peripheral, described of frame；Between central optical axis direction and the described transparent cover plate lower surface of described luminous organ
Angle be 90 ° of-α.
12. concealed fingerprint capturers according to claim 10, it is characterised in that described luminous organ is arranged at described
The lower section of the transparent cover plate peripheral, described of frame；The central optical axis direction of described luminous organ is parallel with described transparent cover plate lower surface；
Reflecting surface it is additionally provided with, between described reflecting surface and described transparent cover plate lower surface between described luminous organ and described support
Angle be (90 ° of-α)/2.
13. concealed fingerprint capturers according to claim 12, it is characterised in that be additionally provided with longitudinal direction on described reflecting surface
Spreading grooves.
14. according to Claim 8 to described concealed fingerprint capturer arbitrary in 13, it is characterised in that include at least one
Following feature:
Described light shield layer is lighttight ink layer；
Described luminous organ is for launching near infrared near-infrared luminous device or launching ultrared infrared illuminator.
15. 1 kinds of concealed fingerprint capturers, including transparent cover plate, support, luminous organ, image acquisition device and circuit substrate, its
It is characterised by,
Described cover plate lower surface is coated with the first ink layer constituting closed ring；Described support is arranged under the first ink layer
Side, described circuit substrate is installed in the bottom of described support；Described support, the upper surface of circuit substrate and described transparent cover plate following table
Face surrounds cavity；
In described cavity, the lower section of described cover plate the aperture plate being coated with lighttight second ink layer, described aperture are set
Multiple apertures of uniform array are had on second ink layer of plate；The edge of described aperture plate upper surface and the first of closed ring
The inner annular edge of ink layer abuts；The region of the uncoated ink that the first ink layer inner annular edge surrounds and table on described aperture plate
Face forms air layer；
Described image acquisition device is arranged at the lower section of described aperture plate；
Described luminous organ is arranged at described containment portion and launches the light that can pass through the first ink layer to described cover plate.
16. concealed fingerprint capturers according to claim 15, it is characterised in that described light enters described transparency cover
Angle after plate and between described transparent cover plate surface normal direction is α, and described α meets: arcsin (n1/n0)≤α≤arcsin
(n2/n0)；
Wherein, n1For the refractive index of the outer medium of transparent cover plate during non-stamp finger, n2For the refractive index of finger surface, n0For transparent
The refractive index of cover plate.
17. concealed fingerprint capturers according to claim 15, it is characterised in that described luminous organ is arranged at described
Lower section, side or the top position of the transparent cover plate peripheral, described of frame；
Being filled with transparent optical cement between described luminous organ and described transparent cover plate, the refractive index of described transparent optical cement is with described
Transparent cover plate refractive index is identical or approximates.
18. concealed fingerprint capturers according to claim 17, it is characterised in that described luminous organ is arranged at described
The lower section of the transparent cover plate peripheral, described of frame；Between central optical axis direction and the described transparent cover plate lower surface of described luminous organ
Angle be 90 ° of-α.
19. concealed fingerprint capturers according to claim 17, it is characterised in that described luminous organ is arranged at described
The lower section of the transparent cover plate peripheral, described of frame；The central optical axis direction of described luminous organ is parallel with described transparent cover plate lower surface；
Reflecting surface it is additionally provided with, between described reflecting surface and described transparent cover plate lower surface between described luminous organ and described support
Angle be (90 ° of-α)/2.
20. concealed fingerprint capturers according to claim 19, it is characterised in that be additionally provided with longitudinal direction on described reflecting surface
Spreading grooves.
21. according to described concealed fingerprint capturer arbitrary in claim 15 to 20, it is characterised in that described luminous organ is
Launch near infrared near-infrared luminous device or launch ultrared infrared illuminator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620381044 | 2016-04-28 | ||
| CN2016203810448 | 2016-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205692181U true CN205692181U (en) | 2016-11-16 |
Family
ID=57262573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620441953.6U Active CN205692181U (en) | 2016-04-28 | 2016-05-13 | Concealed fingerprint capturer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205692181U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107341433A (en) * | 2016-04-28 | 2017-11-10 | 深圳印象认知技术有限公司 | Concealed fingerprint capturer |
| WO2018152740A1 (en) * | 2017-02-23 | 2018-08-30 | 深圳市汇顶科技股份有限公司 | Sensing unit |
| US10091402B1 (en) | 2015-12-11 | 2018-10-02 | Gingy Technology Inc. | Image capture apparatus |
| CN111240526A (en) * | 2017-04-27 | 2020-06-05 | Oppo广东移动通信有限公司 | Display screen, display device and mobile terminal |
-
2016
- 2016-05-13 CN CN201620441953.6U patent/CN205692181U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10091402B1 (en) | 2015-12-11 | 2018-10-02 | Gingy Technology Inc. | Image capture apparatus |
| CN107341433A (en) * | 2016-04-28 | 2017-11-10 | 深圳印象认知技术有限公司 | Concealed fingerprint capturer |
| CN107341433B (en) * | 2016-04-28 | 2023-12-26 | 渭南印象认知技术有限公司 | Concealed fingerprint collector |
| WO2018152740A1 (en) * | 2017-02-23 | 2018-08-30 | 深圳市汇顶科技股份有限公司 | Sensing unit |
| CN111240526A (en) * | 2017-04-27 | 2020-06-05 | Oppo广东移动通信有限公司 | Display screen, display device and mobile terminal |
| CN111240526B (en) * | 2017-04-27 | 2023-11-24 | Oppo广东移动通信有限公司 | Display screen, display device and mobile terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Hidden fingerprint collector Effective date of registration: 20200826 Granted publication date: 20161116 Pledgee: Zhang Jinfang Pledgor: Vkansee Technology Co.,Ltd. Registration number: Y2020990001028 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: 714000 floors 4-6, building 3, additive manufacturing Innovation Center Industrial Park, west section of Chaoyang Street, high tech Industrial Development Zone, Weinan City, Shaanxi Province Patentee after: Weinan impression Cognitive Technology Co.,Ltd. Address before: 518057 402, AVIC Nanhang building, No. 7, Langshan Road, north high tech Zone, Nanshan District, Shenzhen, Guangdong Patentee before: VKANSEE TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address |