CN103049138A - Integrated optical module and finger scanning device thereof - Google Patents
Integrated optical module and finger scanning device thereof Download PDFInfo
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- CN103049138A CN103049138A CN2011103072332A CN201110307233A CN103049138A CN 103049138 A CN103049138 A CN 103049138A CN 2011103072332 A CN2011103072332 A CN 2011103072332A CN 201110307233 A CN201110307233 A CN 201110307233A CN 103049138 A CN103049138 A CN 103049138A
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Abstract
The invention discloses an integrated optical module and a finger scanning device thereof. The integrated optical module is arranged between a window module and an electronic module, the window module is provided with a contact surface, and the electronic module is provided with a light source and a light sensing unit. The integrated optical module comprises a lighting portion and an imaging portion, wherein the lighting portion comprises a light guide array, the light guide array is used for guiding incident light coming from the light source to be aligned to the window module at a preset incident angle, the imaging portion comprises a micro-lens array, the micro-lens array is arranged on the imaging portion to be aligned to reflected light coming from the window module and faces towards the light sensing unit, the micro-lens array comprises a long and thin identifying unit and a navigation unit, the identifying unit is provided with a row of shafts which are generally perpendicular to the light guide array, and the navigation unit is connected with the identifying unit and is parallel with the row of shafts. The integrated optical module is arranged between the window module and the electronic module to provide finger navigation and fingerprint identification performance.
Description
Technical field
The present invention relates to a kind of integrated optical module that is applicable to point induction installation, and be particularly related to a kind of integrated optical module that is applied to provide in the fingerprint imaging device finger navigation and biological characteristic scan function.
Background technology
The Modern Electronic device is constantly towards the trend development of miniaturization, and the diversity of its function that provides and complexity are also non-to be compared in the past.Traditional human-computer interface device (human interface device, HID), for example slide-mouse and keyboard if be used further to the control interface of the miniaturization electronic installation of modern diversified multimedia function, obviously do not apply and use.
Therefore, provide the accurate of tight human-computer interaction and instinct type miniaturization control interface to be the R﹠D target of industry ongoing effort always.Particularly, the Novel micro personal electronic device profoundly incorporates in the modern day life, and these devices are used in the various environment, and it is especially important that its applicability becomes.Especially, the human nature interface device that is used for wherein wants accurate and sharp incessantly, wants especially small and exquisite and durable.
Another side, individualized along with modern electronics is stored in wherein data and information secret and important increasingly especially.Therefore, new-type personal electronic device more needs to incorporate suitable saves mechanism from damage to protect these important informations, especially under the situation that loss is stolen, limits other people to the improper operation of this device.Wherein, human fingerprint is a unique biological characteristic, and is used for for a long time identifying purpose.Therefore, finger scan/discriminating function being incorporated the Modern Small electronic installation is many desired to tighten security with managing access to data.
Optical finger navigation (Optical finger navigation, OFN) technology has above-mentioned characteristic accurate, small and exquisite and with a high credibility.Therefore, the application that itself namely has the extremely suitable bio-identification aspect of optical finger navigation device of scan function.Specifically, Novel micro optical finger navigation device combines susceptibility and the reliability of existing optical mice, does not but have the space constraint on traditional entity application.
Generally speaking, optical finger navigation application of installation one light source and a series of related optical eyeglass are arranged to illumination one detecting surface (sensing surface) with the generation digital image, and then form the basis that action data calculates.Specifically, small-sized sensor in the guider can be positioned over the upper mobile finger in detecting surface and produce accordingly a series of digital image by detecting, then it is processed into the interaction that relevant navigation signal (navigation signals) is controlled electronic installation or generation and electronic installation.
Yet existing optical finger navigation device usually will throw light on to separate with imaging optic element and be arranged on its detecting surface, and take valuable space.Moreover the optical design that separates causes producing more inhomogeneous illumination output on the detecting surface of wide area, and this measure will affect the performance of optical finger navigation device negatively.Also have, finger navigation and identification of fingerprint operation need the optical element of different qualities usually.In general, has the applicable running with the cooperation finger print identification function of wide optical mirror slip to extension (wide-spanning) linear array.On the other hand, the optical mirror slip that has (point-concentrated) in fixed-point set detecting array then comparatively is useful in the application of finger navigation.Therefore, in single device the optical element of spaced apart being applied to other operator scheme, aspect cost benefit and the space utilization aspect all be to lack efficient.
So, problem of the present invention is to propose a kind of integrated optical module, can take into account the running of supporting fingerprint recognition and finger navigation, and have simultaneously light and handy small external form, in order to be applied in small-sized encapsulated (lower-profile package) structure.In addition, the present invention also proposes a kind of small and exquisite and cost-effective finger induction installation, and it had both had an identification of fingerprint and the finger navigation function is arranged, and especially was applicable to small and exquisite portable electronic installation.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of integrated optical module to be applicable to point induction installation.Described integrated optical module is located between a window module and the electronic module so that the performance of finger navigation and fingerprint recognition to be provided.
For reaching above-mentioned purpose, the invention provides a kind of integrated optical module, be located at a window module and with surface of contact and have between the electronic module of light source and photoinduction unit.This integrated optical module comprises a Lighting Division and an imaging section.This Lighting Division include a leaded light array in order to guiding from the incident light of this light source in a predetermined incident angle in alignment with this window module; This imaging section includes a micromirror array arrangement thereon to aim at from the reflected light of this window module and towards this photoinduction unit.Wherein this micromirror array comprises that an elongated recognition unit has a row axle substantially perpendicular to this leaded light array; And a navigation elements is connected in this recognition unit and arranged side by side with this row axle.
In addition, the technical problem to be solved in the present invention, also being to provide a kind of fingers scan device is to utilize an optical module of integrating to have the performance of finger navigation and fingerprint recognition concurrently with planning.
In order to solve the problems of the technologies described above, according to wherein a kind of scheme of the present invention, provide a kind of fingers scan device, comprise a window module, an electronic module and an integrated optical module.This window module has a surface of contact and is connected to a storing and the finger of wish scanning; This electronic module comprises that a light source and a photoinduction unit arrange accordingly towards this window module; This integrated optical module is arranged between this window module and this electronic module, and this integrated optical module comprises a Lighting Division, an imaging section, recognition unit and navigation elements.This Lighting Division has leaded light array system and aims at this window module from the light of this light source in a predetermined incident angle in order to guiding; This imaging section, have one arrange thereon micromirror array be in order to reflection from the light of this window module towards this photoinduction unit; Wherein this micromirror array comprise an elongated recognition unit have a row axle substantially perpendicular to this leaded light array, and a navigation elements be connected in this recognition unit and arranged side by side with this row axle.
According to one of embodiment of the invention, further provide the design of illumination passage to can be used on the optical package of little and low external form, and the projection pattern that arrangement can be provided is with the wide scanning area of Uniform Illumination one.
Description of drawings
Fig. 1 is the three-dimensional exploded view with optical finger induction installation of integrated optical module of the present invention.
Fig. 2 is the side sectional view of optical finger induction installation of the present invention.
Fig. 3 is the stereographic map of integrated optical module of the present invention.
Fig. 4 is the schematic diagram of the Lighting Division of integrated optical module of the present invention.
Fig. 5 is the schematic diagram of the imaging section of integrated optical module of the present invention.
Fig. 6 is the schematic diagram of another Lighting Division of integrated optical module of the present invention.
Wherein, description of reference numerals is as follows:
Integrated optical module: 1
Leaded light array: 11
Light guide: 111a, 111b, 111c
Imaging section: 12
Microlens array: 121
Identification lens unit: 121a
Navigation lens unit: 121b
Glazing covering: 2
Window module: 3
Electronic module: 4
Light source: 41
Light source component: 41a, 41b, 41c
Photoinduction unit: 42
Light-shielding structure: 43
Lower smooth covering: 5
Embodiment
Reach technology, method and the effect that set purpose is taked in order further to understand the present invention, see also following relevant detailed description of the present invention, graphic, believe purpose of the present invention, feature and characteristics, when being goed deep into thus and concrete understanding, yet appended graphic and annex only provide with reference to and explanation usefulness, be not to the present invention's limitr in addition.
Please refer to Fig. 1, show the exploded view of the integrated optical module of optical finger induction installation application concept of the present invention.This integrated optical module in the present embodiment (or being called for short optical module) can be taken into account efficiently the support finger navigation and operate with fingerprint recognition together with relevant optical sensor arrangement.From bottom to top, this optical finger induction installation comprises an electronic module 4, an integrated optical module 1, reaches a window module 3 as the induction encapsulation.Electronic module 4 has a light source cell and a photoinduction unit; This integrated optical module 1 comprises that a Lighting Division and system of an imaging section are arranged in this electronic module 4 tops accordingly; Window module 3 has at least one part of a surface of contact and is positioned at this integrated optical module 1 top.Said elements is vertically to arrange to become a low small-sized encapsulation (low-profile compact package) of profile.In addition, glazing covering 2 and lower smooth covering 5 optionally are applicable to the imaging section of integrated optical module 1 to strengthen the anti-crosstalk performance of finger induction installation.
The conceptual operating principle of optical finger induction installation of the present invention is as follows.Please refer to the drawing 2 and Fig. 3 show respectively the side sectional view of finger induction installation and the stereographic map of integrated optical module 1 thereof.This integrated optical module 1 inside has the Lighting Division 11 of light source 41 and close light source 41.Light source 41 can be one or more light emitting diodes, is provided to emit beam towards the area of the Lighting Division 11 1 pre-faces of this integrated optical module 1.The Lighting Division 11 of this optical module 1 is formed with a plurality of light guide 111a, 111b, and 111c complies with predetermined incident angle towards the scanning of a surface (or claiming the touching surface) of window module 3 in order to guiding from the light beam of light source 41, and illumination is near the object on this touching surface well.By the scanning of a surface (or claiming the touching surface) of window module 3, user's finger can be put on it to scan.The reflected light of finger end face can be transmitted the imaging section 12 towards this optical module 1.Imaging section 12 includes microlens array (micro lens array) 121 in order to focus on and to guide the photoinduction unit 42 of this reflected light towards this electronic module 4.
In the present embodiment, the structure of this optical module 1 roughly is smooth rectangular plate-like (flat rectangular plate), includes Lighting Division 11 and imaging section 12, is located at respectively the X-Y plane (ginseng Fig. 3) of definition.Optical module 1 of the present invention is arranged to the horizontal of compactness with Lighting Division 11 and imaging section 12, helps to reduce the thickness of module, and therefore lower external form (lower profile) is possessed in whole induction encapsulation.This integrated optical module 1 can be made by polycarbonate (Polycarbonate is called for short PC), and perhaps other can conduct the electromagnetic suitable material that this electronic module 4 sends.In addition, optical module 1 can be the single-piece optical element by the accurate ejection formation of plastic cement.The Lighting Division 11 of this optical module arranges the light source 41 corresponding to this electronic module 4, and definition make up light beam that an illumination passage come in by light source 14 with transmission according to the incident angle that is fit to towards this window module 3.The illumination passage comprises that one contains described a plurality of light guide 111a, 111b, and the leaded light array 11 of 111c is with the object to be scanned that throws light on.Specify, the light guide of this leaded light array 11 (or claims optical element, optical components) can utilize total reflection (total internal reflection, be called for short TIR) principle, or use other suitable optical designs with the light of guiding light source 41 towards this window module 3.Same, the imaging section 12 of this optical module 1 is designed to the photoinduction unit 42 corresponding to this electronic module 4, and comprise that imaging band system can guide reflected light (from object to be scanned, such as the human finger end face) from window module 3 towards this photoinduction unit 42.Specify, this imaging band can comprise that micromirror array 121 is to be designed to merge a plurality of lens elements, to be suitable for the fingers scan operation of different mode, comprises fingerprint recognition and finger navigation.
In the present embodiment, light source 41 is that to be located at this substrate (or circuit board) upper and be positioned at a side of this light-shielding structure 43, can comprise that one or more light emitting diodes are with as light-emitting component.A kind of mode wherein, light source 41 can be comprised of the single light-emitting component with enough output functions.Under this kind situation, high-power light source cell can arrange and become the leaded light array at the broad angle of optical module 1, with scattered beam equably towards predetermined field of illumination.Thus, the light that sends of light source 41 can be conducted to this window module 3 and be projected to scanning object.At the selectable embodiment of another kind, light source 41 can comprise a plurality of light- emitting component 41a, 41b, 41c and be arranged to an illumination array.Therefore the design of a plurality of light-emitting components can reduce the output demand as single light-emitting component, can flexible operation and can save the energy.These characteristics are for the small hand-held formula device particular importance of using the Portable battery.Specify, a plurality of lower powered light-emitting components can be arranged to an array of source, and each light-emitting component separately is formulated for the predetermined zone of throw light to.The overlapping degree of light-emitting component can flexible in layout to be suitable for specific operational requirements.Moreover each light-emitting component that separates can be formulated for individually and to start, or sequentially looks actual demand according to specific operator scheme and start.Reduce the energy loss of repeatability with this.
In array of source, independently startup and the running of light-emitting component can be done suitable setting adjustment according to specific operator scheme for each.For example, the imaging applications of not all type (imaging application) all needs to start simultaneously all light-emitting components.Illustrate, fingerprint recognition is used and usually need to be started simultaneously in the array of source all light-emitting components, can be across the adequate level illumination on the touching surface of this window module 3 to produce in wider scanning area (along the x axle).On the other hand, finger navigation is used, and its running utilizes the change of reflected light signal position vector (directional vector), but only need to be than the light output of low degree and the illumination of a narrower higher range (higher refer to the axle along y).Jointly, the application of finger navigation and do not require and start simultaneously whole light-emitting components.Therefore, when carrying out one when not requiring the specific operator scheme that starts simultaneously whole array of source, electronic module 4 may be arranged to the array of source 41 of actuating section only with the surperficial specific region of this touching of throwing light on.Moreover the array of source of the multicomponent through suitably arranging can promote uniform light output intensity in the field of illumination of appointment.As the better selection of the present embodiment.
Illustrate, the present embodiment utilizes an array of source to comprise three light-emitting components, is lined up single row shape (as shown in Figure 4).When operating in the fingerprint recognition pattern, three light-emitting components of all in the array all can be activated to produce enough brightness, contain a wider banded area on the touching surface of window module 3.
On the other hand, when operating in the finger navigation pattern, only require the light-emitting component 41b of the central authorities surperficial central part of this contact (scanning) that throws light on.Therefore, the variation (corresponding to the movement of finger end) at the surperficial directivity vector of touching is the microlens array 121 that is guided towards optical module 1.This microlens array 121 is to arrange to focus on from the reflected light of window module 3 in the photoinduction unit 42 of this electronic module 4 with further processing signals, and its details repeats after holding.
This touching surface can be smooth, or better, has slight depression.For example, help to increase induction area at this convex curved surface (convex curvature) of touching surperficial top, it is focused and presses the finger image that touches on it in obtaining.Window module 3 can be formed by glass, and perhaps other high-abrasive material can be by the light from light source cell 41.Moreover the scanning form can be the optical element of opening in a minute and be arranged at window module 3, perhaps can be the part as integrated window module 3.For example, window module 3 can be that integral body is made by transparent material.Corresponding, suitable coating material can put on the body of window module 3, and the transparent part of only exposing its needs is to form this scanning form.This scanning form can be elongate and have an area that is smaller than the one dimension end face of finger.In addition, the scanning form (it has fore and aft axis) of at least one part can preferably widen along a direction, and this direction is the direction perpendicular to itself.The windows area that widens can be preferably corresponding to the microlens array 121 of optical module 1 to help the light detection performance of finger navigation module.
The Lighting Division 11 of optical module 1 in the present embodiment, its optics and structural configuration are the arrangement of being arranged to corresponding to light source cell 41.This Lighting Division 11 and light source cell 41 define an illumination passage (illuminating channel) with cooperating with each other.Consult especially Fig. 4 and Fig. 6, be the different schematic diagram of the Lighting Division 11 of integrated optical module of the present invention.For obtaining clearly fingerprint, the light-guide device of the miniaturization of illumination passage is integrated into required projection pattern (pattern) with the scanning form of this window module 3 of throwing light on by special arrangements to produce oblique collimated light beam (inclined collimated beams of light).Moreover the illumination passage can be set up by a leaded light array, and aforementioned leaded light array comprises that a plurality of optical elements can evenly throw from the light of the light source 41 scanning form to window module 3.Specify, the present embodiment utilizes a leaded light array 11 to comprise three light conductors that arrange (prism/prism member) 111a contiguously, and 111b, 111c, its exiting surface are towards this imaging section 12.In this embodiment, these are by prism 111a, 111b, the optical element that 111c forms (optical member) is to be arranged to single row shape configuration with row axle (row axis), and this row axle extends along fore and aft axis (elongating axis) direction of this scanning form substantially abreast.The light source that cooperates this leaded light array of the present embodiment to adopt to assemble (congregated) on electronic module 4 to save the space, simultaneously also can Uniform Illumination in the wide area of scanning of a surface.Perhaps, as shown in Figure 6, the leaded light array also can be arranged to the setting of flatly scattering along this scanning form.This kind construction go out a kind of better control illumination pattern (pattern) and across the scanning of a surface of wider spacing.Wherein this leaded light array comprise at least three optical elements around be arranged in this micromirror array around.
The imaging section 12 of this optical module 1 comprises that microlens array 121 can be guided and the light of focus reflection (the finger end face that is scanned from this window module 3) with towards this photoinduction unit 42.The imaging section 12 of optical module 1 and the photoinduction unit 42 of electronic module 4 jointly make up the above-mentioned image passage of definition, can guide from the reflection ray of scanned object to this electronic module 4 to obtain image.Fig. 5 shows the closely schematic diagram of the imaging section 12 of optical module 1 of the present invention.In this embodiment, microlens array 121 is arranged on the central area of square type optical module plate, comprises identification lens unit 121a and a navigation lens unit 121b who links to each other.This identification lens unit 121a comprises that most lenticular lens elements are arranged to elongated column array.This elongated identification lens unit 121a has an axle along x axle longitudinal extension.Preferably, the extension of this axle of identification lens unit 121a (or claiming row axle) is substantially perpendicular to the exiting surface of prism 111a, 111b, 111c, and is in substantially parallel relationship to the scanning form of window module 3.Another side, navigation lens unit 121b comprise that one concentrates the lens of assembling, and it is connected in identification lens unit 121a, and perpendicular to the axle of lengthwise.In the present embodiment, the lens element of navigation lens unit 121b utilizes single lenticule, arrange the central part near this elongated identification lens unit 121a, and lid covers one or more relevant optical diodes.
Navigation lens unit 121b arranges the window area that widens corresponding to this window module 3 (for example, be located at the below of the central part of the window area that widens with aiming at), to set up a wider visual field with the finger movement of sensing in finger navigation operates.Please be careful, although the middle position of navigation lens unit 121b discussed herein and the navigation form that widens are to be applicable to general navigation operation.Yet clear and definite position and the arrangement of navigation lens unit 121b, with and the correlation navigation form still can be arranged to other ornaments with applicable specific design and/or operational requirements.For example, navigation lens unit 121b can arrange to become to the crooked pattern of this identification lens unit 121a right-hand member (along positive x direction of principal axis), more to be applicable to the finger navigation pattern of right thumb.Moreover the imaging section 12 of optical module 1 can add a masking structure to reduce the potential interference of optical crosstalk effect.For example, the coating of light-permeable can not put on imaging section 12 along microlens array 121.The application process of these photoresist layers (or claiming the anti-crosstalk layer) can comprise electroless plating method (electro-less plating) and/or other suitable technology.
Integrated optical module of the present invention unlike existing optical design system's application illumination and imaging optic element separately, and takies less expensive real estate and can produce more uniformly illumination output.Moreover, by the characteristics of integration technology, not only require finger navigation, also have the operation of fingerprint recognition, in the encapsulation of small-sized single type, the present invention with more economical and space-efficient mode realification multi-functional optical manipulation.
About the photoinduction element in the lenticular lens elements in the microlens array 121 and the photoinduction unit 42 in conjunction with arranging, can factor is set and determine according to specific operational requirements or other.For example, in one embodiment, each lenticular lens elements (micro lens element) in the microlens array 121 can be followed an optical diode (photo diode) of photoinduction unit 42 in couples in man-to-man mode.Another kind of mode, each lenticular lens elements in the microlens array 121 can be accordingly in conjunction with a plurality of optical diodes, and anti-is also right.Specifically, lenticular especially arrangement of the present invention allows each lenticule in the microlens array 121 can be designed to cover the optical diode of specific quantity, therefore reduce the complexity of optical element on the structure, but maintain simultaneously light transmission and the focusing ability of efficient.Moreover the overlapping of object can be designed to realize reducing in the position of lens and gap.
See also Fig. 1, extra light covering, for example glazing covering 2 and lower smooth covering 5 can be in order to the interference that reduces possible optical crosstalk effect and the sensitivities that improves finger induction installation of the present invention.In this specific embodiment, each upper and lower smooth covering 2,5 is roughly to be flat condition, and each light covering has perforation array (aperture array) and is formed on its flat surfaces.This perforation array is arranged the configuration corresponding to these lenticule row 121.Specifically, the size of perforation and structural planning can determine indivedual lenticular visual angles (field of view, FOV), also can further assist to reduce crosstalking of light.For reaching the preferred construction integration so that this upper and lower smooth covering 2,5 to be installed, this integrated optical module 1 can be designed to comprise the structure of a concavity in imaging section 12.For example, in the present embodiment, the structure system that optical module 1 has a concavity is formed in this imaging section 12, and wherein microlens array 121 is to be located in the structure of this concavity.The structure of this concavity the flat surfaces of optical module 1 be can be considered installation tray (mounting tray) with fixing in conjunction with this light covering.Yet the employing of light covering is optionally, and it is selectable particularly descending light covering 5; And the practical structures of described a plurality of smooth coverings should be dependent on optionally demand of ad hoc structure arrangement and/or other.
Only the above only be better possible embodiments of the present invention, and is non-so namely limit to claim of the present invention, therefore the equivalence techniques variation of such as using instructions of the present invention and graphic content to do all in like manner all is contained in the scope of the present invention, closes and gives Chen Ming.
Claims (15)
1. an integrated optical module is located at a window module and with touching face and is had between the electronic module of light source and photoinduction unit, it is characterized in that, this integrated optical module comprises:
One Lighting Division comprises a leaded light array, in order to guide the incident light from this light source with a predetermined incident angle towards this window module; And
One imaging section comprises a micromirror array, arranges thereon with guiding from the reflected light of this window module towards this photoinduction unit;
Wherein this micromirror array comprises:
One elongated recognition unit has cardinal principle perpendicular to the row axle of this leaded light array; And
One navigation elements, it is adjacent to this recognition unit and arranged side by side with this row axle.
2. integrated optical module as claimed in claim 1 is characterized in that, this leaded light array comprises at least three light guides that are arranged to adjacently towards this imaging section.
3. integrated optical module as claimed in claim 1 is characterized in that, this recognition unit comprises that one is the microlens array that the single-row shape is settled.
4. integrated optical module as claimed in claim 1 is characterized in that, this navigation elements comprises a single lenticule.
5. integrated optical module as claimed in claim 4 is characterized in that, this navigation elements is arranged at this elongated recognition unit by ectocentral position.
6. integrated optical module as claimed in claim 1 is characterized in that, this integrated optical module is roughly a flat body, wherein the molded structure that is formed in one of this Lighting Division and this imaging section.
7. integrated optical module as claimed in claim 1 is characterized in that, this imaging section comprises a masking structure.
8. integrated optical module as claimed in claim 7 is characterized in that, this masking structure comprises an anti-crosstalk layer.
9. such as claim 1 a described integrated optical module, it is characterized in that, the pallet that this imaging section comprises at least one concavity structure is with in conjunction with a smooth covering.
10. a fingers scan device is characterized in that, comprising:
One window module has a touching face, in order to accept wish scanning finger placed on it;
One electronic module comprises a light source and a photoinduction unit, settles towards this window module accordingly; And
One integrated optical module is arranged between this window module and this electronic module, and this integrated optical module comprises:
One Lighting Division has a leaded light array and aims at this window module from the light of this light source in a predetermined incident angle in order to guiding; And
One imaging section has a micromirror array that arranges thereon, in order to reflection from the light of this window module towards this photoinduction unit;
Wherein this micromirror array comprises:
One elongated recognition unit, it has a cardinal principle perpendicular to the row axle of this leaded light array; And
One navigation elements, it is adjacent to this recognition unit and arranged side by side with this row axle.
11. fingers scan device as claimed in claim 10 is characterized in that, this leaded light array comprises at least three light guides that are arranged to adjacently towards this imaging section.
12. fingers scan device as claimed in claim 10 is characterized in that, this recognition unit comprises that one is the microlens array that the single-row shape is settled.
13. fingers scan device as claimed in claim 10 is characterized in that, this navigation elements comprises a single lenticule.
14. fingers scan device as claimed in claim 10 is characterized in that, this integrated optical module is roughly a flat body, wherein the molded structure that is formed in one of this Lighting Division and this imaging section.
15. fingers scan device as claimed in claim 10 is characterized in that, further comprises a smooth covering, is arranged at the surface of this imaging section of this integrated optical module, and is set as roughly should micromirror array.
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| CN2011103072332A CN103049138A (en) | 2011-10-12 | 2011-10-12 | Integrated optical module and finger scanning device thereof |
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| US10963671B2 (en) | 2015-06-18 | 2021-03-30 | Shenzhen GOODIX Technology Co., Ltd. | Multifunction fingerprint sensor having optical sensing capability |
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| CN105868737A (en) * | 2016-04-29 | 2016-08-17 | 格科微电子（上海）有限公司 | Optical fingerprint recognition device and forming method thereof |
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Application publication date: 20130417 |