CN105989321A - Optical imaging module of thin type biological identification device - Google Patents
Optical imaging module of thin type biological identification device Download PDFInfo
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- CN105989321A CN105989321A CN201510040485.1A CN201510040485A CN105989321A CN 105989321 A CN105989321 A CN 105989321A CN 201510040485 A CN201510040485 A CN 201510040485A CN 105989321 A CN105989321 A CN 105989321A
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- pedicellus
- pericarpium trapae
- optics
- thin film
- slimming
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Abstract
The invention provides an optical imaging module of a thin type biological identification device. The optical imaging module comprises a first glass substrate, a first optical prism film, a second optical prism film, and an image sensing assembly. The first glass substrate comprises a fingerprint image region, a vein image region, a contact surface, a reflecting surface and a binding surface. The first optical prism film is attached to the binding surface and is located below the fingerprint image region. The second optical prism film is attached under the first optical prism film. The image sensing assembly is arranged corresponding to the first glass substrate and is located at the lower part of the binding surface.
Description
Technical field
The present invention is the optical imagery module about a kind of slimming biological identification device, particularly applies to refer to
Stricture of vagina scans with vein, is beneficial to next identification step.
Background technology
In order to strengthen saving effect from damage and make up tradition such as personal identification number, numeral key, pass through intelligence core
The shortcoming of the digitized identity identification technology of the hardware key that sheet is built-in etc., existing increasing now
Identity identification and save from damage system be use or have additional biological identification device.And the fingeprint distinguisher of finger is with quiet
Arteries and veins device for identifying is then two common examples in biological identification device.
Dual biological identification module faces the problem of maximum at present and is still the integration on hardware, doing of past
Method is all for the difference detecting target suitable induction apparatus of configuration, add upper vein dual identification module with fingerprint and
Speech, need to arrange an image sensor, fingerprint portion for vein imaging then needs by an optics Pedicellus et Pericarpium Trapae mirror collocation shadow
As sensor carries out imaging (or using capacitive fingerprint sensing device), this is main due to both images
The optical principle of imaging is different, as long as its medium-sized vein infrared light penetrates finger, and vein image i.e. be can be observed,
But fingermark image just must can increase stricture of vagina peak and the stricture of vagina of fingerprint by the total reflection phenomenon of an optics Pedicellus et Pericarpium Trapae mirror
The degree of discrimination of paddy.
Therefore, for volume, the visual angle (optical path) of both images to be observed is different, it addition,
The configuration of conventional fingerprint Pedicellus et Pericarpium Trapae mirror can cause module volume to become big；Furthermore use capacitance type fingerprint as previously mentioned
Although sensor is up to the purpose of one-tenth volume-diminished, but can produce problem below when subsequent terminal user uses:
(1) problem of assembly reliability, under the use of (individual) one to one, compares and meets answering of capacitance type sensor
With, if but under the comparison environment of one-to-many (building access control and attendance system) its robustness enjoy test.(2) make
The price that can further result in integral module with capacitive fingerprint sensing device improves.
No. 201413596 case of TaiWan, China patent publication No. (hereinafter referred to as 596 case) is the present invention
Applicant it is proposed that invention before case " biological identification device and method ", it is possible to resolve existing dual biology is distinguished
Know the aforementioned disappearance of module.But, 596 cases still use traditional Pedicellus et Pericarpium Trapae mirror to reach dual biological identification module institute
The two set different light paths footpaths needed.Due to traditional Pedicellus et Pericarpium Trapae mirror i.e. light guide module its not only have larger thickness and
Relatively take up space, be difficult to reduce overall dimensions, and more can many primary events, gained image has nonlinear deformation
Problem, so applicant in this case is the slimming biological identification device researching and developing and having invented this case further
Optical imagery module.
According to being similar to fingerprint vein image acquisition module on the market, the wherein fingerprint optical imagery mould of manufacturer NEC
Block (HS-100), its fingerprint vein image capture mode refers to for using two image sensors to capture respectively simultaneously
Stricture of vagina and vein image, captured respectively and completed fingerprint vein identification by different images sensor and burnt section with combination,
This mode can reduce the time that image obtains and processes, but can increase the cost of module further.
Fingerprint optical imagery module (FUSE-ID) of another manufacturer M2SYS, for integrating optical imagery on hardware
Module adds the combination of fingerprint module, makes whole module size come 100mm*120mm*74mm, overall body
Amass the hugest, and this system is two image sensors, it is also desirable to sequentially distinguish print and the shadow of vein
Picture so that the capture time is the most relatively long.
For the above-mentioned origin of an incident, the optical imagery module of the present invention a kind of slimming biological identification device, by one
Optics Pedicellus et Pericarpium Trapae mirror thin film (Prism Sheet) it is pasted with plus single image sensing component on glass substrate so that
Overall light path volume is reduced, by single image sensing component, it is only necessary to a capture can obtain simultaneously
Fingerprint and vein image, be not only greatly decreased the module volume commonly used needed for Pedicellus et Pericarpium Trapae mirror, simultaneously because the light of deviation
Road is less, also can reduce the phenomenon producing deformation of image, further up to the mesh accelerating system identification processing speed
's.
Summary of the invention
The first object of the present invention is the optical imagery module being to provide a kind of slimming biological identification device,
By an optics Pedicellus et Pericarpium Trapae mirror thin film of fitting in the fingermark image district on a glass substrate, reaching only need to be by a shadow
As capture of sensing component can obtain the purpose of fingerprint and vein image simultaneously.
The second object of the present invention is the optical imagery module being to provide a kind of slimming biological identification device,
It is integrated among an optical imagery module by optics Pedicellus et Pericarpium Trapae mirror thin film is merged with glass substrate, reaches overall light
Road volume is reduced further, accelerates the purpose of system identification processing speed simultaneously.
For reaching above-mentioned purpose, the optical imagery module of the present invention a kind of slimming biological identification device, its bag
Include: one first glass substrate, one first optics Pedicellus et Pericarpium Trapae mirror thin film, one second optics Pedicellus et Pericarpium Trapae mirror thin film, Yi Jiyi
Image sensing component.This first glass substrate, includes: a fingermark image district, a vein image area, one
Contact surface, a reflecting surface and a binding face.This first optics Pedicellus et Pericarpium Trapae mirror thin film is attached at this binding face position
Under this fingermark image district.This second optics Pedicellus et Pericarpium Trapae mirror thin film is attached under this first optics Pedicellus et Pericarpium Trapae mirror thin film.
This image sensing component is corresponding with this first glass substrate, and is positioned at place below this binding face.
In another embodiment, the present invention also provides for the optical imagery module of a kind of slimming biological identification device,
It is characterized in that, include: one first glass substrate, a fingermark image district, a vein image area, one connect
Contacting surface, a reflective interface and a binding face；One first optics Pedicellus et Pericarpium Trapae mirror thin film, is attached at this binding face also
It is positioned under fingermark image district；And two corresponding optical grade laminating glue the second optics Pedicellus et Pericarpium Trapae mirror thin film attach
Lower section in this first optics Pedicellus et Pericarpium Trapae mirror thin film.
Accompanying drawing explanation
Fig. 1 is that the optical imagery module of the present invention a kind of slimming biological identification device is arranged at a biological identification
The schematic perspective view of device.
Fig. 2 is optical imagery module first preferred embodiment of the present invention a kind of slimming biological identification device
Side structure schematic diagram.
Fig. 3 is optical imagery module first preferred embodiment of the present invention a kind of slimming biological identification device
Plan structure and close schematic diagram with the relative of image sensing component.
Fig. 4 is optical imagery module first preferred embodiment of the present invention a kind of slimming biological identification device
Optics Pedicellus et Pericarpium Trapae mirror film portion section enlarged diagram.
Fig. 5 A is the optical path analogous diagram that this first glass substrate attaches this first optics Pedicellus et Pericarpium Trapae mirror thin film.
Fig. 5 B is to attach one second glass substrate again after this first glass substrate attaches this first optics Pedicellus et Pericarpium Trapae mirror thin film
Optical path analogous diagram.
Fig. 5 C is optical imagery module first preferred embodiment of the present invention a kind of slimming biological identification device
Optical path analogous diagram.
Fig. 6 is optical imagery module second preferred embodiment of the present invention a kind of slimming biological identification device
Side structure schematic diagram.
Fig. 7 is optical imagery module second preferred embodiment of the present invention a kind of slimming biological identification device
Optical path analogous diagram.
Fig. 8 is optical imagery module the 3rd preferred embodiment of the present invention a kind of slimming biological identification device
Side structure schematic diagram.
Fig. 9 is optical imagery module the 3rd preferred embodiment of the present invention a kind of slimming biological identification device
Plan structure schematic diagram.
Description of reference numerals: 1,1a, 1b～optical imagery module；11～first glass substrate；111～refer to
Stricture of vagina image area；112～vein image area；113～contact surface；114～reflecting surface；115～binding face；12～
First optics Pedicellus et Pericarpium Trapae mirror thin film；121～Pedicellus et Pericarpium Trapae mirror microstructure；13～the second optics Pedicellus et Pericarpium Trapae mirror thin film；131～Pedicellus et Pericarpium Trapae mirror micro-
Structure；14～image sensing component；15～second glass substrate；7,7b～optical grade laminating glue；8～hands
Refer to；9～biological identification device；91～carry seat；92～location structure；93～light source cell；94～control mould
Block.
Detailed description of the invention
In order to enable more clearly to describe the optical imagery of a kind of slimming biological identification device proposed by the invention
Module, below in conjunction with graphic detailed description.
Referring to shown in Fig. 1, Fig. 1 is the optical imagery module of the present invention a kind of slimming biological identification device
It is arranged at the schematic perspective view of a biological device for identifying.Wherein, one slimming biological identification device of the present invention
Optical imagery module 1 be arranged among a biological device for identifying 9, and this biological identification device 9 is used for distinguishing
Knowing a biological characteristic, this biological characteristic said here refers in particular to " fingerprint " and " vein " two feature, should
Biological identification device 9 includes: one carries seat 91, location structure 92, an at least light source cell 93, Yi Jiyi
Control module 94.In the present invention, this is identified position is a finger 8, the especially first knuckle of forefinger
It is preferably with the part of second knuckle, and using first knuckle as identification of fingerprint, and second knuckle is as vein
It is recognized as main.This finger 8 is attached to the upper of this location structure 92 of this load seat 91, makes this biological identification fill
Put this optical imagery module 1 in 9 and be able to this finger 8 of further identification of the irradiation by this light source cell 93
Fingerprint and vein pattern, and give identification by this control module 94.
Referring to shown in Fig. 2, Fig. 3, Fig. 4, Fig. 2 is the light of the present invention a kind of slimming biological identification device
Learn the side structure schematic diagram of image-forming module the first preferred embodiment.Fig. 3 is that one slimming of the present invention is biological
The plan structure of optical imagery module first preferred embodiment of device for identifying and the phase with image sensing component
To closing schematic diagram.Fig. 4 is that the optical imagery module first of the present invention a kind of slimming biological identification device is preferable
The optics Pedicellus et Pericarpium Trapae mirror film portion section enlarged diagram of embodiment.
As shown in Figure 2 and Figure 3, its bag of the optical imagery module 1 of a kind of slimming of present invention biological identification device
Include: one first glass substrate 11,1 first optics Pedicellus et Pericarpium Trapae mirror thin film 12,1 second optics Pedicellus et Pericarpium Trapae mirror thin film 13,
And an image sensing component 14.This first glass substrate 11 includes: a fingermark image district 111, is quiet
Arteries and veins image area 112, one contact surface 113, reflecting surface 114 and a binding face 115.This first optics
Pedicellus et Pericarpium Trapae mirror thin film 12 is attached at this binding face 115 and is positioned under this fingermark image district 111.This second optics Pedicellus et Pericarpium Trapae
Mirror thin film 13 is attached under this first optics Pedicellus et Pericarpium Trapae mirror thin film 12.This image sensing component 14 and this first glass
Glass substrate 11 is corresponding, and is positioned at place below this binding face 115.Wherein, this contact surface 113 be exactly this
One glass substrate 11 provides the surface that the finger (containing finger tip and previous or two knuckle portion) of user contacts,
The namely upper surface of this first glass substrate 11.And it is contacted with the region of contact surface 113 not according to finger
With, further this contact surface 113 is divided into this fingermark image district 111 and this vein image area 112
Two regions, and this reflecting surface 114 is just in the opposite side of this contact surface 113 in this fingermark image district 111.
It is then another surface relative with this contact surface 113 as this binding face 115, namely this first glass base
The lower surface of plate 11.
This first glass substrate 11 possess filter visible ray, isolation external dust and as finger pressing fingerprint at
Function, can be infrared filter (IR pass filter) or coloured glass one of them.This is years old
One optics Pedicellus et Pericarpium Trapae mirror thin film 12 and this second optics Pedicellus et Pericarpium Trapae mirror thin film 13 are a kind of optics with micro-Pedicellus et Pericarpium Trapae mirror structure
Thin film (Prism sheet), can change the deviation direction of light by this optical thin film.This first optics Pedicellus et Pericarpium Trapae
Mirror thin film 12 and this second optics Pedicellus et Pericarpium Trapae mirror thin film 13 are arranged at this first glass substrate 11 in identification process
Upper strata or lower floor all can go out fingermark image with imaging, but due to this first optics Pedicellus et Pericarpium Trapae mirror thin film 12 with this second
Optics Pedicellus et Pericarpium Trapae mirror thin film 13 belongs to relatively soft materials, if being placed on the upper strata of this first glass substrate 11 in order to directly
Contact finger 8 easily causes abrasion because of use, is the most mainly placed on this first glass substrate 11 times
Side, can protect this first optics Pedicellus et Pericarpium Trapae mirror thin film 12 and this second optics by this first glass substrate 11
Pedicellus et Pericarpium Trapae mirror thin film 13.But, this first glass substrate the 11, first optics Pedicellus et Pericarpium Trapae mirror thin film 12 and second optics
All binded by an optical grade laminating glue 7 between Pedicellus et Pericarpium Trapae mirror thin film 13；Wherein, this optical grade laminating glue 7
Thickness is about 25 μm.
As shown in Figure 4, this first optics Pedicellus et Pericarpium Trapae mirror thin film 12 includes respectively with this second optics Pedicellus et Pericarpium Trapae mirror thin film 13
The Pedicellus et Pericarpium Trapae mirror microstructure 121,131 of multiple arrays arrangement is constituted, and its spacing (pi tch) width D determines
The discriminating degree of fingermark image, the light and shade striped of width D its fingerprint the biggest is the most obvious, but still needs to regarding this image
The minimum resolution of sensing component 14 and design, if the width of D is more than the minimum of this image sensing component 14
Resolution then easily produces obvious Pedicellus et Pericarpium Trapae mirror striped too much on image.Highly H and width D present a ratio and close,
This ratio is about 1:2 (H:D), and highly H Yu θ 1 can affect the distance of width D further.θ 1 generally determines
Light the most easily reaches specific Pedicellus et Pericarpium Trapae minute surface and produces refraction and produce total reflection phenomenon at reflecting surface 114,
θ 1 is the biggest more easily produces total reflection phenomenon, but the total reflection light wire spoke degree produced reduces, and θ 1 is the least the most more
It is not easy to produce total reflection phenomenon.This second optics Pedicellus et Pericarpium Trapae mirror thin film 13 and this image sensing component 14 are only spy
Could have the complete finger print image of the degree of discrimination in determining angular field of view in the generation of this reflective interface 114, other is put
Although seated position also can produce the image of total reflection, but image is the most imperfect；Furthermore, the first optics Pedicellus et Pericarpium Trapae mirror
The size then shadow of the refractive index (index of refraction) of thin film 12 and this second optics Pedicellus et Pericarpium Trapae mirror thin film 13
Having rung the position of overall fingermark image imaging, its image of the biggest refractive index is the closer to this image sensing component 14
Center.This first optics Pedicellus et Pericarpium Trapae mirror thin film 12 of the present invention and the thickness L of this second optics Pedicellus et Pericarpium Trapae mirror thin film 13
Scope is between 200 μm～300 μm, wherein, and this first optics Pedicellus et Pericarpium Trapae mirror thin film 12 and this second optics
Each Pedicellus et Pericarpium Trapae mirror microstructure 121,131 its spacing (pitch) width D scope of Pedicellus et Pericarpium Trapae mirror thin film 13 be 60 μm～
200 μm, depending on the minimum resolution of this image sensing component 14 used.Each Pedicellus et Pericarpium Trapae mirror microstructure 121,
The height H scope of 131 is 30 μm～100 μm become a ratio to close to exist with width D.Each Pedicellus et Pericarpium Trapae mirror microstructure
121, horizontal sextant angle θ 1=45 ° of 131.
Referring to shown in Fig. 5 A, Fig. 5 B, Fig. 5 C, Fig. 5 A is that this first glass substrate attaches this first optics
The optical path analogous diagram of Pedicellus et Pericarpium Trapae mirror thin film.Fig. 5 B is that this first glass substrate attaches this first optics Pedicellus et Pericarpium Trapae mirror thin film
After attach the optical path analogous diagram of one second glass substrate again.Fig. 5 C is that one slimming biology of the present invention is distinguished
The optical path analogous diagram of optical imagery module first preferred embodiment of identification device.Wherein, this optical path
Analogous diagram is with this image sensing component 14 visual angle as reference, and the situation in practice is just contrary state.
Different line styles represents light ray energy in various degree, and it is 1～0.66 that principal rays (dotted line) represents intensity,
It is 0.66～0.33 that secondary light (solid line) represents intensity, again wants light (double solid line) to represent intensity and is
0.33～0, its demand is intended to obtain this principal rays (dotted line) can be anti-at this of this first glass substrate 11
Face, firing area 114 forms the result of total reflection, just can clearly identify the lines of fingerprint.
As shown in Figure 5A, on this first glass substrate 11, this first optics Pedicellus et Pericarpium Trapae mirror thin film 12, warp are only attached
Optical path simulation result shows, principal rays (dotted line) produces partially reflective in this reflecting surface 114, in
Under the structure of this first optics Pedicellus et Pericarpium Trapae mirror thin film 12 of simple layer and cannot effectively produce entirely at this reflecting surface 114
Reflex.As shown in Figure 5 B, on this first glass substrate 11, attach this first optics Pedicellus et Pericarpium Trapae mirror thin film 12
After attach one second glass substrate 15 again, its principal rays (dotted line) through refraction after leave this reflecting surface 114,
Principal rays also cannot effectively produce total reflection phenomenon.As shown in Figure 5 C, only being somebody's turn to do that two-layer overlapping is fitted
First and second optics Pedicellus et Pericarpium Trapae mirror thin film 12,13 and be attached at this first glass substrate 11 structural grouping it
Under, principal rays (dotted line) just can be made to produce complete total reflection phenomenon.
This first optics Pedicellus et Pericarpium Trapae mirror thin film 12 that therefore, the used two-layer of the present invention the first preferred embodiment coincides,
And second optics Pedicellus et Pericarpium Trapae mirror thin film 13 as the deviation medium of this fingermark image district 111 light, more suitably take
Join the position (including the image sensing component using picture to be 16:9) that this image sensing component 14 is arranged, i.e.
An available total reflection imaging area required for the fingerprint lines of 11 °～26 °；It is to say, such as
Shown in Fig. 3, the view angle theta of this second optics Pedicellus et Pericarpium Trapae mirror thin film 13 and this image sensing component 14 can areas imaging
It is 11 ° of ＜ θ ＜ 26 °, so can perfectly integrate this fingermark image district 111 and this vein image area 112
Optical path, reach fingerprint and vein imaging in same picture.
In other words, two-layer overlap laminating this first and second optics Pedicellus et Pericarpium Trapae mirror thin film 12,13 and be attached at
This side, fingermark image district 111 under this binding face 115 of this first glass substrate 11, makes this first glass
This fingermark image district 111 and this vein image area 112 of substrate 11 can provide simultaneously the detecting of fingerprint, vein with
The contact area of this finger 8.This image sensing component 14 is then arranged in the middle of this first glass substrate 11
Underface picking up fingerprint simultaneously and vein image, can capture fingerprint and vein by so configuration simultaneously
Image.
In other preferred embodiment of invention described below, because most assembly is the same as or similar to aforementioned
Embodiment, therefore will not be described in great detail below identical assembly and structure, and identical assembly is identical by directly giving
Title and numbering, and then give same names for similar assembly but another after former numbering to increase by one English
Letter is as a means of difference and it will not go into details, and conjunction is first chatted bright.
Referring to shown in Fig. 6, Fig. 7, Fig. 6 is the optical imagery of the present invention a kind of slimming biological identification device
The side structure schematic diagram of module the second preferred embodiment.Fig. 7 is one slimming biological identification of the present invention dress
The optical path analogous diagram of optical imagery module the second preferred embodiment put.Wherein, one of the present invention is slim
Optical imagery module second preferred embodiment of metaplasia thing device for identifying is the most real with the first of above-mentioned Fig. 2, Fig. 3
Execute example difference to be, as shown in Figure 6, Figure 7, this optical imagery module of the present invention the second preferred embodiment
This first optics Pedicellus et Pericarpium Trapae mirror thin film 12 and this second optics Pedicellus et Pericarpium Trapae mirror thin film 13 centre more clamping of 1a include
One second glass substrate 15.It is to say, by this optical grade laminating glue 7 at this first optics Pedicellus et Pericarpium Trapae mirror thin film
12 and this second optics Pedicellus et Pericarpium Trapae mirror thin film 13 centre clamping attach this second glass substrate 15 and be attached at this
Under structural grouping under first glass substrate 11, also can make the principal rays (dotted line) that optical path emulates
Produce the total reflection phenomenon reaching complete.
Referring to shown in Fig. 8, Fig. 9, Fig. 8 is the optical imagery of the present invention a kind of slimming biological identification device
The side structure schematic diagram of module the 3rd preferred embodiment.Fig. 9 is one slimming biological identification of the present invention dress
The plan structure schematic diagram of optical imagery module the 3rd preferred embodiment put.Wherein, one of the present invention is slim
Optical imagery module the 3rd preferred embodiment of metaplasia thing device for identifying is the most real with the first of above-mentioned Fig. 2, Fig. 3
Execute example difference to be, as shown in Figure 8, Figure 9, this optical imagery module of the present invention the 3rd preferred embodiment
The second optics Pedicellus et Pericarpium Trapae mirror thin film 13 of 1b respectively by this two corresponding optical grade laminating glue 7b be attached at this
The lower section of one optics Pedicellus et Pericarpium Trapae mirror thin film 12, to reduce the loss that light penetrates in each plane.
In sum, the optical imagery module 1 of a kind of slimming of present invention biological identification device its include:
One first glass substrate 11,1 first optics Pedicellus et Pericarpium Trapae mirror thin film 12,1 second optics Pedicellus et Pericarpium Trapae mirror thin film 13, Yi Jiyi
Image sensing component 14.This first glass substrate 11 includes: fingermark image district 111, vein image
District 112, one contact surface 113, reflecting surface 114 and a binding face 115.This first optics Pedicellus et Pericarpium Trapae mirror is thin
Film 12 is attached at this binding face 115 and is positioned under this fingermark image district 111.This second optics Pedicellus et Pericarpium Trapae mirror thin film
13 are attached under this first optics Pedicellus et Pericarpium Trapae mirror thin film 12.This image sensing component 14 and this first glass substrate
11 is corresponding, and is positioned at place below this binding face 115.Therefore, by this first glass substrate 11 with this first,
And second optics Pedicellus et Pericarpium Trapae mirror thin film 12,13 merge and be integrated in this optical imagery module 1 of the present invention, reach
Only can need to obtain fingerprint and vein image by 14 captures of this image sensing component simultaneously, reach overall
Light path volume is reduced further, accelerates the purpose of system identification processing speed simultaneously.
Embodiment described above shall not be applied to limit the present invention can range of application, protection scope of the present invention
Should be included in the range of master with the claim content institute definition techniques spirit of the present invention and impartial change thereof.
The most generally the impartial change done according to the claims in the present invention and modification, will not lose the main idea place of the present invention,
Also without departing from the spirit and scope of the present invention, former capital should be regarded as the further status of implementation of the present invention.
Claims (16)
1. the optical imagery module of a slimming biological identification device, it is characterised in that include:
One first glass substrate, includes: a fingermark image district, a vein image area, a contact surface, one
Reflecting surface and a binding face；
One first optics Pedicellus et Pericarpium Trapae mirror thin film, is attached at this binding face and is positioned under fingermark image district；And
One second optics Pedicellus et Pericarpium Trapae mirror thin film, is positioned under this first optics Pedicellus et Pericarpium Trapae mirror thin film.
2. the optical imagery module of slimming biological identification device as claimed in claim 1, it is characterised in that
One second glass is had in this first optics Pedicellus et Pericarpium Trapae mirror thin film and this second optics Pedicellus et Pericarpium Trapae mirror thin film the most more clamping
Substrate.
3. the optical imagery module of slimming biological identification device as claimed in claim 2, it is characterised in that
This first glass substrate, the second glass substrate, the first optics Pedicellus et Pericarpium Trapae mirror thin film and the second optics Pedicellus et Pericarpium Trapae mirror thin film
Between all by one optical grade laminating glue binded.
4. the optical imagery module of slimming biological identification device as claimed in claim 1, it is characterised in that
Further include an image sensing component, corresponding with this first glass substrate, and it is positioned at place below this binding face.
5. the optical imagery module of slimming biological identification device as claimed in claim 1, it is characterised in that
The thickness range L of this first optics Pedicellus et Pericarpium Trapae mirror thin film and this second optics Pedicellus et Pericarpium Trapae mirror thin film is 200 μm～300
Between μm.
6. the optical imagery module of slimming biological identification device as claimed in claim 3, it is characterised in that
This optics laminating glue thickness is about 25 μm.
7. the optical imagery module of slimming biological identification device as claimed in claim 4, it is characterised in that
This second optics Pedicellus et Pericarpium Trapae mirror thin film is 11 ° of ＜ θ ＜ 26 ° with the view angle theta areas imaging of this image sensing component.
8. the optical imagery module of slimming biological identification device as claimed in claim 2, it is characterised in that
This first glass substrate and this second glass substrate be infrared filter or coloured glass one of them.
9. the optical imagery module of slimming biological identification device as claimed in claim 1, it is characterised in that
This first optics Pedicellus et Pericarpium Trapae mirror thin film and this second optics Pedicellus et Pericarpium Trapae mirror thin film include that the Pedicellus et Pericarpium Trapae mirror that multiple array arranges is micro-respectively
Structure is constituted；Each Pedicellus et Pericarpium Trapae mirror microstructure its spacing width D scope is 60 μm～200 μm；Each Pedicellus et Pericarpium Trapae mirror is micro-
The height H scope of structure is 30 μm～100 μm；Highly H pass proportional to width D, this ratio is
H:D=1:2；Horizontal sextant angle θ 1=45 ° of each Pedicellus et Pericarpium Trapae mirror microstructure.
10. the optical imagery module of a slimming biological identification device, it is characterised in that include:
One first glass substrate, includes: a fingermark image district, a vein image area, a contact surface, one
Reflecting surface and a binding face；
One first optics Pedicellus et Pericarpium Trapae mirror thin film, is attached at this binding face and is positioned under fingermark image district；And
It is thin that second optics Pedicellus et Pericarpium Trapae mirror thin film is attached at this first optics Pedicellus et Pericarpium Trapae mirror by two one of corresponding optical grade laminating glue
The lower section of film.
The optical imagery module of 11. slimming biological identification devices as claimed in claim 10, its feature exists
In, further include an image sensing component, corresponding with this first glass substrate and be positioned at below this binding face locate.
The optical imagery module of 12. slimming biological identification devices as claimed in claim 10, its feature exists
In, all pass through between this first glass substrate, the first optics Pedicellus et Pericarpium Trapae mirror thin film and the second optics Pedicellus et Pericarpium Trapae mirror thin film
One optical grade laminating glue is binded.
The optical imagery module of 13. slimming biological identification devices as claimed in claim 10, its feature exists
In, the thickness L scope of this first optics Pedicellus et Pericarpium Trapae mirror thin film and this second optics Pedicellus et Pericarpium Trapae mirror thin film be 200 μm～
Between 300 μm.
The optical imagery module of 14. slimming biological identification devices as claimed in claim 12, its feature exists
In, this optical grade laminating glue thickness is 25 μm.
The optical imagery module of 15. slimming biological identification devices as claimed in claim 10, its feature exists
In, this first glass substrate be infrared filter or coloured glass one of them.
The optical imagery module of 16. slimming biological identification devices as claimed in claim 10, its feature exists
In, this first optics Pedicellus et Pericarpium Trapae mirror thin film and this second optics Pedicellus et Pericarpium Trapae mirror thin film include the Pedicellus et Pericarpium Trapae that multiple array arranges respectively
Mirror microstructure is constituted；Each Pedicellus et Pericarpium Trapae mirror microstructure its spacing width D scope is 60 μm～200 μm；Each Pedicellus et Pericarpium Trapae
The height H scope of mirror microstructure is 30 μm～100 μm；Highly H pass proportional to width D, this ratio is
H:D=1:2；Horizontal sextant angle θ 1=45 ° of each Pedicellus et Pericarpium Trapae mirror microstructure.
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