CN103455810A - Optical fingerprint collection device, portable electronic device and optical fingerprint collection method - Google Patents
Optical fingerprint collection device, portable electronic device and optical fingerprint collection method Download PDFInfo
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- CN103455810A CN103455810A CN2013103913017A CN201310391301A CN103455810A CN 103455810 A CN103455810 A CN 103455810A CN 2013103913017 A CN2013103913017 A CN 2013103913017A CN 201310391301 A CN201310391301 A CN 201310391301A CN 103455810 A CN103455810 A CN 103455810A
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Abstract
The invention discloses an optical fingerprint collection device, a portable electronic device and an optical fingerprint collection method. The optical fingerprint collection device comprises a light transmitter module, a light guiding device and a plurality of image sensors, wherein the light transmitter module is used for providing light, the light guiding device is suitable for allowing a finger to be pressed on the surface, the light shines the fingerprint pressed on the surface of the light guiding device through the light guiding device, reflection rays of the fingerprint are sent out through the light guiding device, each image sensor is used for receiving part of the reflection rays, and fingerprint image data are generated according to part of the reflection rays received by each image sensor. Due to the fact that the optical fingerprint collection device adopts the image sensors to collect the fingerprint, the thickness of the device is reduced, and the resolution ratio is improved.
Description
Technical field
The present invention relates to the fingerprint collecting technical field, relate in particular to a kind of optical fingerprint acquisition apparatus, portable electron device and optical finger print acquisition method.
Background technology
Optical fingerprint sensor is a kind of refraction of light and device that principle of reflection gathers fingerprint of utilizing.Please refer to Fig. 1, show a kind of optical fingerprint sensor of prior art.Described optical fingerprint sensor comprises light source 11, first lens 12, right-angle prism 13, the second lens 14 and imageing sensor 15, light source 11 and imageing sensor 15 respectively with two orthogonal sides of right-angle prism 13 over against, and first lens 12 is between light source 11 and right-angle prism 13, the second lens 14 are between right-angle prism 13 and imageing sensor 15.
When carrying out fingerprint collecting, point 16 common glands at right-angle prism 13 upper surfaces.The parallel rays that light source 11 sends, by arriving a side of right-angle prism 13 after first lens 12, then arrives the upper surface of prism 13.If the position that light arrives at is not right-angle prism 13 upper surfaces of finger 16 contacts, light will form inner full-reflection, and passes from another side of prism 12, arrives imageing sensor 15 after the second lens 14; If what light arrived at is just in time right-angle prism 13 upper surfaces of finger 16 contacts, light can not form inner full-reflection, but is absorbed by the skin of finger 13.Like this, optical fingerprint sensor will capture a light and dark fingerprint graph.
Along with the rise of the application such as mobile payment and Internet of Things authentication, be badly in need of a kind of portable electron device, in order to can be gathered fingerprint easily and flexibly.Yet known according to above analysis, existing optical fingerprint sensor need to have a plurality of lens and right-angle prism to coordinate, and light path is large, causes its thickness larger, the thickness of existing optical fingerprint sensor more than 10mm, is difficult to be used in the portable electron device that thickness own is less usually.
For this reason, need a kind of new optical fingerprint acquisition apparatus badly, to solve the existing large problem of fingerprint sensor thickness, need a kind of new portable electron device simultaneously, with realization, easily and flexibly fingerprint is gathered, and need a kind of optical finger print acquisition method, to solve the inadequate problem of fingerprint clear degree that fingerprint collecting method is gathered that has now.
Summary of the invention
The problem that the present invention solves is to provide a kind of optical fingerprint acquisition apparatus, portable electron device and optical finger print acquisition method, to reduce the thickness of optical fingerprint acquisition apparatus, and realize easily and flexibly fingerprint being gathered, improve the sharpness of the fingerprint that gathers simultaneously.
For addressing the above problem, the invention provides a kind of optical fingerprint acquisition apparatus, comprising:
The light emission module, for providing light;
Guiding device, be suitable for pointing gland on its surface, and described light irradiates the finger print of gland on described guiding device surface by described guiding device, and the reflection ray of described fingerprint spreads out of by described guiding device;
A plurality of imageing sensors, each described imageing sensor is suitable for the described reflection ray of receiving unit, and generates fingerprint image data according to the described reflection ray of received part.
Optionally, described guiding device is optical lens or optical prism.
Optionally, the thickness range of described guiding device comprises 0.2mm～3mm, and the distance range between described guiding device and described imageing sensor comprises 1mm～4mm.
Optionally, described light emission module is a plurality of, and a plurality of described imageing sensors are closely arranged.
Optionally, described imageing sensor comprises the wafer scale optical lens.
Optionally, the focal range of described wafer scale optical lens comprises 0.1mm～3mm.
Optionally, described imageing sensor comprises optoelectronic component array, picture signal supplementary module, picture signal read module and picture signal processing module;
Described optoelectronic component array is for receiving described reflection ray and producing fingerprint image signal;
Described picture signal supplementary module reads described fingerprint image signal for controlling described picture signal read module, also for transmitting described fingerprint image signal to described picture signal processing module;
Described picture signal processing module is for the treatment of described fingerprint image signal, also for export described fingerprint image data according to result.
Optionally, described picture signal read module comprises:
The row address decoding module, electricity is connected in described picture signal supplementary module, for receiving the instruction of described picture signal supplementary module, also for read described fingerprint image signal when receiving described instruction;
The column address decoding module, electricity connects described picture signal processing module, for described fingerprint image signal being transferred to described picture signal processing module.
Optionally, described picture signal processing module comprises programmable amplifier, analog-digital converter and the imaging signal processing circuit that electricity connects in turn.
Optionally, described device also comprises:
Information process unit, for receiving described fingerprint image data, and the described fingerprint image data generated after processing according to a plurality of described imageing sensors generates fingerprint image or fingerprint recognition information.
Optionally, a plurality of described imageing sensors be N capable * array of M row arranges, wherein N is greater than or equal to 1 natural number, M is greater than or equal to 1 natural number, and N equals 1 when different with M.
For addressing the above problem, the present invention also provides a kind of portable electron device, comprises optical fingerprint acquisition apparatus as above.
Optionally, described portable electron device also comprises display device and printed circuit mother board, and described guiding device is fixedly arranged on described display device inside, and described display device exposes described guiding device surface; Described imageing sensor is fixedly arranged on described printed circuit mother board.
For addressing the above problem, the present invention also provides a kind of optical finger print acquisition method, comprising:
Adopt light to irradiate finger print;
The reflection ray of described fingerprint is conducted to a plurality of imageing sensors;
Each described reflection ray of described imageing sensor receiving unit is also processed, the rear fingerprint image data generated is processed in output.
Optionally, the described reflection ray of described imageing sensor receiving unit the step processed comprise:
Described imageing sensor carries out opto-electronic conversion according to received reflection ray, produces fingerprint image signal;
Read described fingerprint image signal;
Described fingerprint image signal is processed, and exported described fingerprint image data according to result.
Optionally, produce described fingerprint image signal and read described fingerprint image signal and comprise:
Carry out row address decoding according to instruction, produce described fingerprint image signal;
Carry out column address decoding, to read described fingerprint image signal.
Optionally, the step of described fingerprint image signal being processed comprises: described fingerprint image signal is amplified to processing, analog-to-digital conversion process and view data successively and process.
Optionally, described method also comprises:
The described fingerprint image data generated after processing according to a plurality of described imageing sensors generates fingerprint image or fingerprint recognition information.
Optionally, a plurality of described imageing sensors be N capable * array of M row arranges, wherein N is greater than or equal to 1 natural number, M is greater than or equal to 1 natural number, and N equals 1 when different with M.
Compared with prior art, technical scheme of the present invention has the following advantages:
In technical scheme of the present invention, by using a plurality of imageing sensors to gather fingerprint, each described imageing sensor is suitable for the reflection ray of receiving unit fingerprint, therefore the light path in described optical fingerprint acquisition apparatus can arrange littlely, be that fingerprint can arrange littlely to the distance between imageing sensor, thereby make optical fingerprint acquisition apparatus thickness less.And due to each described imageing sensor described reflection ray of receiving unit only, so the part fingerprint image that each described imageing sensor obtains is more clear, and therefore the resolution of described optical fingerprint acquisition apparatus is higher.
Portable electron device provided by the present invention has optical fingerprint acquisition apparatus provided by the present invention, therefore, described portable electron device can there is less thickness, and described portable electron device is higher to the resolution of fingerprint, thereby can realize easily and flexibly fingerprint being gathered.
The invention provides a kind of optical finger print acquisition method, described method conducts to a plurality of imageing sensors by the reflection ray of fingerprint, and each described reflection ray of described imageing sensor receiving unit is also processed, the rear fingerprint image data generated is processed in output.In described method, each described imageing sensor is the reflection ray of receiving unit fingerprint only, so the part fingerprint image that each described imageing sensor obtains is more clear.
The accompanying drawing explanation
Fig. 1 is existing optical fingerprint sensor schematic diagram;
Fig. 2 is optical fingerprint acquisition apparatus embodiment mono-schematic diagram of the present invention;
Fig. 3 is the schematic top plan view of imageing sensor in optical fingerprint acquisition apparatus shown in Fig. 2;
Fig. 4 is existing optical fingerprint sensor imaging schematic diagram;
Fig. 5 is optical fingerprint acquisition apparatus embodiment mono-imaging schematic diagram of the present invention;
Fig. 6 is the composition schematic diagram of imageing sensor in optical fingerprint acquisition apparatus embodiment mono-of the present invention;
Fig. 7 is optical fingerprint acquisition apparatus embodiment bis-schematic diagram of the present invention.
Embodiment
As described in background, existing optical fingerprint sensor needs right-angle prism, first lens and the second lens to coordinate with an imageing sensor, right-angle prism, first lens and the second lens have increased the thickness of whole device, and only by an imageing sensor, gather fingerprint, the fingerprint image gathered is clear not.
For this reason, the invention provides a kind of optical fingerprint acquisition apparatus, it needn't use right-angle prism and two lens, and therefore, its thickness can reduce.Simultaneously, described optical fingerprint acquisition apparatus adopts the collection of a plurality of imageing sensors for fingerprint, thereby both can further reduce the thickness of described optical fingerprint acquisition apparatus, can improve again the sharpness of gathered fingerprint, and improve the resolution of described optical fingerprint acquisition apparatus simultaneously.
For above-mentioned purpose of the present invention, feature and advantage can more be become apparent, below in conjunction with accompanying drawing, specific embodiments of the invention are described in detail.
The embodiment of the present invention one provides a kind of optical fingerprint acquisition apparatus.
Please refer to Fig. 2, Fig. 2 is the present embodiment optical fingerprint acquisition apparatus schematic diagram.In the optical fingerprint acquisition apparatus of the present embodiment, comprise optical prism 21, light emission module 22 and a plurality of imageing sensor 23.A plurality of imageing sensors 23 all are arranged on circuit board 24, and each imageing sensor 23 has wafer scale optical lens 231.Wafer scale optical lens 231 is relative with optical prism 21.
Common imageing sensor all has optical lens, but the present embodiment imageing sensor 23 has wafer scale optical lens 231, and wafer scale optical lens 231 is encapsulated in imageing sensor 23 by wafer-level packaging method, not only improve the collection effect to light, and can guarantee that the finger print information that imageing sensor 23 gathers has consistance.
In the present embodiment, optical prism 21 is wedge shape.Optical prism 21 is as guiding device, and it is suitable for pointing 20 glands on its surface.The thickness H21 of optical prism 21 can be 0.2mm～3mm, and the thickness of right-angle prism is greater than 3mm usually.Hence one can see that, and due to the optical prism 21 that has used wedge shape, the thickness of whole optical fingerprint acquisition apparatus can reduce.
It should be noted that, in other embodiments of the invention, also can adopt optical lens as guiding device.
Please in conjunction with reference to figure 3, Fig. 3 is the schematic top plan view of imageing sensor 23 in optical fingerprint acquisition apparatus shown in Fig. 2.In the present embodiment, imageing sensor 23 has six, and six imageing sensors 23 are the 2 row * array of 3 row and arrange and be arranged on circuit board 24.
In the present embodiment, the array that is 2 row * 3 row due to six imageing sensors 23 is arranged, and therefore, corresponding fingerprint can be divided into to six parts of 2 row * 3 row, and each imageing sensor 23 receives the reflection ray of one of them part fingerprint.That is to say, described optical fingerprint acquisition apparatus can be divided fingerprint accordingly according to the distribution mode of imageing sensor 23, thereby the reflection ray that makes the fingerprint different piece correspondingly imports in different imageing sensors, each imageing sensor receives the reflection ray of specific part fingerprint.
It should be noted that, in other embodiments of the invention, imageing sensor 23 can be N * M, and be N capable * array of M row arranges, wherein N is greater than or equal to 1 natural number, and M is greater than or equal to 1 natural number, and N equals 1 when different with M.
In the present embodiment, distance H 22 between optical prism 21 and imageing sensor 23 can be 1mm～4mm, and the thickness H21 of optical prism 21 and distance H 22 sums that is object distance (being the distance of fingerprint reflection ray to imageing sensor), in known the present embodiment, the magnitude range of object distance can be 1.2mm～7mm.The focal range of wafer scale optical lens 231 can comprise 0.1mm～3mm, is specifically as follows 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 1mm, 2mm or 3mm.
The existing optical fingerprint sensor of contrast is known, in the present embodiment, need between light emission module 22 and optical prism 21, first lens be set, need between optical prism 21 and imageing sensor 23, the second lens be set yet, and the focal length of wafer scale optical lens 231 can be set to less, therefore, the thickness of whole optical fingerprint acquisition apparatus further reduces.
Please, in conjunction with reference to figure 4 and Fig. 5, for illustrating the principle that reduces of the present embodiment optical fingerprint acquisition apparatus thickness, the present embodiment optical fingerprint acquisition apparatus imaging schematic diagram shown in existing optical fingerprint sensor imaging schematic diagram and Fig. 5 shown in Fig. 4 is contrasted.
Please refer to Fig. 4, the optical lens of lens 151 representative image sensors, object 161 represents the part fingerprint, image 162 represents the real image that the handstand of 161 one-tenth, object is dwindled.Distance between object 161 and lens 151 is object distance u
0, image 162 is image distance v to the distance between lens 151
0, and lens 151 have focal distance f
0(focus does not mark, and in Fig. 4, with stain, means).
Prior art is only used an imageing sensor to carry out image acquisition.Suppose that object 161 height H 23 are 6.00mm, the angle that the light at object 161 highs and lows places becomes through lens 151 center the time is 90.0 °, therefore known, object distance u
0for 3.00mm.Suppose again focal distance f
0size be 0.60mm, according to the convex lens formula, 1/f is arranged
0=1/v
0+ 1/u
0, can be in the hope of image distance v
0size be 0.75mm, thereby known, object distance u
0with image distance v
0sum is 3.75mm.
Please refer to Fig. 5, the optical lens of wafer scale optical lens 231 representative image sensors, object 221 represents the part fingerprint, image 222 represents the real image that the handstand of 221 one-tenth, object is dwindled.Distance between object 221 and wafer scale optical lens 231 is object distance u
1(object distance u
1be substantially equal to thickness H21 and distance H 22 sums in Fig. 2), image 222 is image distance v to the distance between wafer scale optical lens 231
1, and wafer scale optical lens 231 has focal distance f
1(focus does not mark, and in Fig. 5, with stain, means).
This enforcement can be used two imageing sensors to carry out image acquisition (as shown in Figure 3, every row have two imageing sensors 23), each imageing sensor only needs half height of the original object of sensing, suppose that object 222 height H 24 are only half of object 161 height H 23, for 3.00mm, and the angle that the light at object 221 highs and lows places becomes through wafer scale optical lens 231 center the time is still 90.0 °, therefore known, object distance u
1for 1.50mm.Suppose again focal distance f
1size and focal distance f
0equate, be 0.60mm, according to the convex lens formula, 1/f is arranged
1=1/v
1+ 1/u
1, can be in the hope of image distance v
1size be 1.00mm, thereby known, object distance u
1with image distance v
1sum is 2.50mm.
Due to object distance u
0with image distance v
0sum is 3.75mm, object distance u
1with image distance v
1sum is 2.50mm, known, by gather the object of an imageing sensor sensing of original use with two imageing sensors, can make corresponding light path be reduced to original 2.50/3.75=66.7%, and in other words, the thickness of respective optical system can reduce 33.3%.And, when adopting the original object with an imageing sensor sensing of more imageing sensor collection, corresponding light path reduces more, the thickness of respective optical system can reduce more in other words.
Hence one can see that, and the present embodiment takes a plurality of imageing sensors 23 to gather fingerprint, therefore, can make whole optical fingerprint acquisition apparatus reduce.In fact, the thickness of existing optical fingerprint sensor is usually more than 10mm, and the thickness of the optical fingerprint acquisition apparatus that the present embodiment provides can reach below 6mm.
In addition, owing to taking a plurality of imageing sensors 23 to gather fingerprint, so the fingerprint area that each imageing sensor 23 gathers is less, therefore can improve the resolution of every part fingerprint, thereby can improve the resolution of whole optical fingerprint acquisition apparatus.
In the present embodiment, each imageing sensor 23 is suitable for receiving the part reflection ray of fingerprint, and each imageing sensor 23 generates fingerprint image data according to the described reflection ray of received part.
Concrete, please refer to Fig. 6, imageing sensor 23 can comprise optoelectronic component array 2310, picture signal read module 2320, picture signal supplementary module 2330, picture signal processing module 2440 and information process unit (not shown).
Picture signal read module 2320 can comprise row address decoding module 2321 and column address decoding module 2322, and row address decoding module 2321 electricity connection layout image signal supplementary modules 2330 are to receive the instruction of picture signal supplementary module 2330.Column address decoding module 2322 electricity connection layout image signal processing modules 2440 are to transfer to picture signal processing module 2440 by described fingerprint image signal.
Picture signal supplementary module 2330 can include I
2c interface 2331, sensor master timing control unit 2332, and the register array 2333 be connected with the two.Row address decoding module 2321 reaches and being electrically connected to of picture signal supplementary module 2330 by electricity connecting sensor master timing control unit 2332, and sensor master timing control unit 2332 can be controlled row address decoding module 2321 and read described fingerprint image signal, and described fingerprint image signal is sent to picture signal processing module 2440 by column address decoding module 2322.
Picture signal processing module 2440 can comprise programmable amplifier 2341, analog-digital converter 2342 and the image signal processing unit 2343 that electricity connects in turn.Column address decoding module 2322 is sent to programmable amplifier 2341 by described fingerprint image signal.Sensor master timing control unit 2332 in picture signal supplementary module 2330 can transfer to signal programmable amplifier 2341 or analog-digital converter 2342.Image signal processing unit 2343 is processed described fingerprint image signal and is exported the view data of described fingerprint according to result.
Described information process unit can be used for receiving described fingerprint image data, and the described fingerprint image data generated after processing according to a plurality of imageing sensors 23 generates fingerprint image or fingerprint recognition information.In generated fingerprint image or fingerprint recognition information, the view data that each imageing sensor 23 can be gathered is reintegrated, and forms complete fingerprint image.
In the optical fingerprint acquisition apparatus that the present embodiment provides, optical fingerprint acquisition apparatus adopts the collection of a plurality of imageing sensors 23 for fingerprint, both reduced the thickness of described optical fingerprint acquisition apparatus, can improve the sharpness of gathered fingerprint again, and improve the resolution of described optical fingerprint acquisition apparatus simultaneously.
The embodiment of the present invention two also provides another kind of optical fingerprint acquisition apparatus.
Please refer to Fig. 7, Fig. 7 is the present embodiment optical fingerprint acquisition apparatus schematic diagram.In the optical fingerprint acquisition apparatus of the present embodiment, comprise guiding device 31, light emission module 32 and a plurality of imageing sensor 33.A plurality of imageing sensors 33 all are arranged on circuit board 34, and each imageing sensor 33 has wafer scale optical lens 331.Wafer scale optical lens 331 is relative with optical prism 31.
The optical fingerprint acquisition apparatus that the optical fingerprint acquisition apparatus of the present embodiment provides with embodiment mono-has identical or similar part more, but something in common or similar part reference example one corresponding contents.
Different from embodiment mono-, in the present embodiment, the guiding device 31 of described optical fingerprint acquisition apparatus is prism-frustum-shaped, and therefore, in sectional drawing shown in Fig. 7, guiding device 31 is trapezoidal.In the present embodiment, guiding device 31 can be both transparent prism, can be also translucent object.Adopt the guiding device 31 of prism-frustum-shaped, can make the thickness H31 of guiding device 31 further reduce, and can reduce the distance H 32 between guiding device 31 and imageing sensor 33, thereby the thickness of optical fingerprint acquisition apparatus is further reduced simultaneously.
Different from embodiment mono-, in the present embodiment, light emission module 32 has a plurality of, and light emission module 32 can arrange around a plurality of imageing sensors 33.The reflection ray that a plurality of light emission modules 32 can make it possible to obtain from all angles fingerprint is set, thereby guarantees that how no matter point 30 is placed on guiding device 31 surfaces, can both collect preferably fingerprint image.
Different from embodiment mono-, in the present embodiment, a plurality of imageing sensors 33 are closely arranged, and do not have spacing between adjacent image sensor 33.Owing to there not being spacing between adjacent image sensor 33, therefore can guarantee that there is not disappearance in the fingerprint image number that each imageing sensor 33 gathers each other as data, thereby improve the sensitivity of optical fingerprint acquisition apparatus.
The embodiment of the present invention three also provides a kind of portable electron device.
The described portable electron device of the present embodiment comprises described any one optical fingerprint acquisition apparatus of above embodiment.Described portable electron device can also include display device and printed circuit mother board, described guiding device can be fixedly arranged on described display device inside, and described display device exposes described guiding device surface, and described imageing sensor can be fixedly arranged on described printed circuit mother board, or the circuit board at described imageing sensor place directly can be set to printed circuit mother board.
The portable electron device that the embodiment of the present invention provides is due to the optical fingerprint acquisition apparatus that has the embodiment of the present invention and provide, therefore it can have less thickness, and described portable electron device is higher to the resolution of fingerprint, can to fingerprint, be gathered easily and flexibly.
The embodiment of the present invention four also provides a kind of optical finger print acquisition method.
The optical finger print acquisition method that the present embodiment provides comprises that employing light irradiates finger print, the reflection ray of described fingerprint is conducted to a plurality of imageing sensors, each described reflection ray of described imageing sensor receiving unit is also processed, the rear fingerprint image data generated is processed in output.
In the present embodiment, described light can produce by corresponding light emission module.And described finger print can be the finger print of gland at corresponding guiding device.
In the present embodiment, a plurality of described imageing sensors can be N capable * array of M row arranges, wherein N is greater than or equal to 1 natural number, M is greater than or equal to 1 natural number, and N equals 1 when different with M.
In the present embodiment, each imageing sensor is suitable for receiving the part reflection ray of fingerprint, and each imageing sensor generates fingerprint image data according to the described reflection ray of received part.
The described reflection ray of described imageing sensor receiving unit the step of being processed comprise, described imageing sensor carries out opto-electronic conversion according to received reflection ray, produces fingerprint image signal.
The described opto-electronic conversion of the present embodiment can utilize the photovoltaic array in described imageing sensor to realize, producing described fingerprint image signal can carry out the row address decoding realization by described photovoltaic array, and described photovoltaic array carries out row address decoding to produce fingerprint image signal.
After producing described fingerprint image signal, read described fingerprint image signal.
The present embodiment can carry out column address decoding by described photovoltaic array and read described fingerprint image signal.
After reading described fingerprint image signal, described fingerprint image signal is processed, to form fingerprint image data.
The described processing of the present embodiment can comprise, described fingerprint image signal is amplified to processing, analog-to-digital conversion process and view data successively and process, and export described fingerprint image data according to result.Described amplification is processed and can be undertaken by programmable amplifier, and described analog-to-digital conversion process can be by ADC(analog-to-digital conversion device) to carry out, described view data processing can be undertaken by image signal processing unit.
Finally, can process the rear described fingerprint image data generated according to a plurality of described imageing sensors and generate fingerprint image or fingerprint recognition information.
The present embodiment can adopt information process unit to generate fingerprint image or fingerprint recognition information.
In the optical finger print acquisition method that the present embodiment provides, the reflection ray of fingerprint is conducted to a plurality of imageing sensors, each described reflection ray of described imageing sensor receiving unit is also processed, the rear fingerprint image data generated is processed in output.Due to each described imageing sensor reflection ray of receiving unit fingerprint only, so the part fingerprint image that each described imageing sensor obtains is more clear.And, because described method does not need light is passed through to twice lens, therefore simplified gatherer process.
Although the present invention discloses as above, the present invention not is defined in this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, so protection scope of the present invention should be as the criterion with the claim limited range.
Claims (19)
1. an optical fingerprint acquisition apparatus, is characterized in that, comprising:
The light emission module, for providing light;
Guiding device, be suitable for pointing gland on its surface, and described light irradiates the finger print of gland on described guiding device surface by described guiding device, and the reflection ray of described fingerprint spreads out of by described guiding device;
A plurality of imageing sensors, each described imageing sensor is suitable for the described reflection ray of receiving unit, and generates fingerprint image data according to the described reflection ray of received part.
2. optical fingerprint acquisition apparatus according to claim 1, is characterized in that, described guiding device is optical lens or optical prism.
3. optical fingerprint acquisition apparatus according to claim 1, is characterized in that, the thickness range of described guiding device comprises 0.2mm～3mm, and the distance range between described guiding device and described imageing sensor comprises 1mm～4mm.
4. optical fingerprint acquisition apparatus according to claim 1, is characterized in that, described light emission module is a plurality of, and a plurality of described imageing sensors are closely arranged.
5. optical fingerprint acquisition apparatus according to claim 1, is characterized in that, described imageing sensor comprises the wafer scale optical lens.
6. optical fingerprint acquisition apparatus according to claim 5, is characterized in that, the focal range of described wafer scale optical lens comprises 0.1mm～3mm.
7. optical fingerprint acquisition apparatus according to claim 1, is characterized in that, described imageing sensor comprises optoelectronic component array, picture signal supplementary module, picture signal read module and picture signal processing module;
Described optoelectronic component array is for receiving described reflection ray and producing fingerprint image signal;
Described picture signal supplementary module reads described fingerprint image signal for controlling described picture signal read module, also for transmitting described fingerprint image signal to described picture signal processing module;
Described picture signal processing module is for the treatment of described fingerprint image signal, also for export described fingerprint image data according to result.
8. optical fingerprint acquisition apparatus according to claim 7, is characterized in that, described picture signal read module comprises:
The row address decoding module, electricity is connected in described picture signal supplementary module, for receiving the instruction of described picture signal supplementary module, also for read described fingerprint image signal when receiving described instruction;
The column address decoding module, electricity connects described picture signal processing module, for described fingerprint image signal being transferred to described picture signal processing module.
9. optical fingerprint acquisition apparatus according to claim 7, is characterized in that, described picture signal processing module comprises programmable amplifier, analog-digital converter and the imaging signal processing circuit that electricity connects in turn.
10. optical fingerprint acquisition apparatus according to claim 1, is characterized in that, described device also comprises:
Information process unit, for receiving described fingerprint image data, and the described fingerprint image data generated after processing according to a plurality of described imageing sensors generates fingerprint image or fingerprint recognition information.
11. optical fingerprint acquisition apparatus according to claim 1, it is characterized in that, a plurality of described imageing sensors be N capable * array of M row arranges, wherein N is greater than or equal to 1 natural number, M is greater than or equal to 1 natural number, and N equals 1 when different with M.
12. a portable electron device, comprise optical fingerprint acquisition apparatus as described as claim 1 to 11 any one.
13. portable electron device as claimed in claim 12, it is characterized in that, described portable electron device also comprises display device and printed circuit mother board, and described guiding device is fixedly arranged on described display device inside, and described display device exposes described guiding device surface; Described imageing sensor is fixedly arranged on described printed circuit mother board.
14. an optical finger print acquisition method, is characterized in that, comprising:
Adopt light to irradiate finger print;
The reflection ray of described fingerprint is conducted to a plurality of imageing sensors;
Each described reflection ray of described imageing sensor receiving unit is also processed, the rear fingerprint image data generated is processed in output.
15. optical finger print acquisition method according to claim 14, is characterized in that, the described reflection ray of described imageing sensor receiving unit the step of being processed comprise:
Described imageing sensor carries out opto-electronic conversion according to received reflection ray, produces fingerprint image signal;
Read described fingerprint image signal;
Described fingerprint image signal is processed, and exported described fingerprint image data according to result.
16. optical finger print acquisition method according to claim 15, is characterized in that, produces described fingerprint image signal and comprise with the step that reads described fingerprint image signal:
Carry out row address decoding according to instruction, produce described fingerprint image signal;
Carry out column address decoding, to read described fingerprint image signal.
17. optical finger print acquisition method according to claim 15, is characterized in that, the step that described fingerprint image signal is processed comprises: described fingerprint image signal is amplified to processing, analog-to-digital conversion process and view data successively and process.
18. optical finger print acquisition method according to claim 14, is characterized in that, described method also comprises:
The described fingerprint image data generated after processing according to a plurality of described imageing sensors generates fingerprint image or fingerprint recognition information.
19. optical finger print acquisition method according to claim 14, it is characterized in that, a plurality of described imageing sensors be N capable * array of M row arranges, wherein N is greater than or equal to 1 natural number, M is greater than or equal to 1 natural number, and N equals 1 when different with M.
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| CN104992158A (en) * | 2015-07-13 | 2015-10-21 | 格科微电子（上海）有限公司 | Method for improving optical fingerprint identification performance |
| CN105354561A (en) * | 2015-12-08 | 2016-02-24 | 开发晶照明（厦门）有限公司 | Fingerprint image acquisition apparatus |
| CN105677082A (en) * | 2015-12-29 | 2016-06-15 | 比亚迪股份有限公司 | Fingerprint pressure measuring method based on terminal device and application method and corresponding apparatus thereof |
| CN106156694A (en) * | 2015-03-27 | 2016-11-23 | 深圳印象认知技术有限公司 | Image acquisition device bracket component and image acquisition device |
| WO2018000638A1 (en) * | 2016-06-29 | 2018-01-04 | 中控智慧科技股份有限公司 | Apparatus and method for non-contact acquisition of 3d fingerprint |
| CN109753108A (en) * | 2017-11-01 | 2019-05-14 | 致伸科技股份有限公司 | Portable electronic device |
| WO2020006706A1 (en) * | 2018-07-04 | 2020-01-09 | 深圳市汇顶科技股份有限公司 | Fingerprint module and electronic device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1258481A (en) * | 2000-01-31 | 2000-07-05 | 深圳智同指纹技术有限公司 | Three-sided fingerprint collecting method and device |
| US6324310B1 (en) * | 1998-06-02 | 2001-11-27 | Digital Persona, Inc. | Method and apparatus for scanning a fingerprint using a linear sensor |
| CN102438111A (en) * | 2011-09-20 | 2012-05-02 | 天津大学 | Three-dimensional measurement chip and system based on double-array image sensor |
-
2013
- 2013-08-30 CN CN2013103913017A patent/CN103455810A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6324310B1 (en) * | 1998-06-02 | 2001-11-27 | Digital Persona, Inc. | Method and apparatus for scanning a fingerprint using a linear sensor |
| CN1258481A (en) * | 2000-01-31 | 2000-07-05 | 深圳智同指纹技术有限公司 | Three-sided fingerprint collecting method and device |
| CN102438111A (en) * | 2011-09-20 | 2012-05-02 | 天津大学 | Three-dimensional measurement chip and system based on double-array image sensor |
Non-Patent Citations (1)
| Title |
|---|
| 刘华敏: "警用活体指纹采集系统基本原理及技术创新", 《刑事技术》, no. 5, 31 December 2005 (2005-12-31), pages 18 - 21 * |
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| CN104297830B (en) * | 2014-10-28 | 2016-08-31 | 北京思比科微电子技术股份有限公司 | Optical fingerprint sensor chip grating and preparation method thereof |
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| CN105354561A (en) * | 2015-12-08 | 2016-02-24 | 开发晶照明（厦门）有限公司 | Fingerprint image acquisition apparatus |
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| CN105677082A (en) * | 2015-12-29 | 2016-06-15 | 比亚迪股份有限公司 | Fingerprint pressure measuring method based on terminal device and application method and corresponding apparatus thereof |
| WO2018000638A1 (en) * | 2016-06-29 | 2018-01-04 | 中控智慧科技股份有限公司 | Apparatus and method for non-contact acquisition of 3d fingerprint |
| US10885300B2 (en) | 2016-06-29 | 2021-01-05 | Zkteco Co., Ltd. | Method and system for contactless 3D fingerprint image acquisition |
| US11373435B2 (en) | 2016-06-29 | 2022-06-28 | Zkteco Co., Ltd. | Method and system for contactless 3D fingerprint image acquisition |
| CN109753108A (en) * | 2017-11-01 | 2019-05-14 | 致伸科技股份有限公司 | Portable electronic device |
| CN109753108B (en) * | 2017-11-01 | 2023-02-28 | 致伸科技股份有限公司 | Portable electronic device |
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