CN106650585A - Glass panel for living fingerprint recognition - Google Patents
Glass panel for living fingerprint recognition Download PDFInfo
- Publication number
- CN106650585A CN106650585A CN201610870603.6A CN201610870603A CN106650585A CN 106650585 A CN106650585 A CN 106650585A CN 201610870603 A CN201610870603 A CN 201610870603A CN 106650585 A CN106650585 A CN 106650585A
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- China
- Prior art keywords
- film
- living body
- finger print
- sio
- thickness
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1382—Detecting the live character of the finger, i.e. distinguishing from a fake or cadaver finger
- G06V40/1394—Detecting the live character of the finger, i.e. distinguishing from a fake or cadaver finger using acquisition arrangements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/113—Anti-reflection coatings using inorganic layer materials only
- G02B1/115—Multilayers
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Optics & Photonics (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The invention relates to a glass panel for living fingerprint recognition, which belongs to the technical field of glass materials. In order to solve the problem that the transmittance for infrared light of living fingerprints is low, a glass panel for living fingerprint recognition is provided. The glass panel comprises a glass substrate, and is characterized in that the upper surface of the glass substrate is plated with a cover film; the cover film is composed of, sequentially from inside to outside, a first TiO2 film, a first SiO2 film, a second TiO2 film, a second SiO2 film, a third TiO2 film and a third SiO2 film; the outer surface of the third SiO2 film is covered with an IR ink layer; and the cover film can penetrate the wavelength of infrared light emitted by living fingerprints. The glass panel can penetrate the wavelength of infrared light emitted by living fingerprints, and the transmittance is above 98%. Moreover, the golden color presented is beautiful.
Description
Technical field
The present invention relates to a kind of face glass for living body finger print identification, belongs to technical field of glass materials.
Background technology
With the development in epoch, insecure identification and certification cause the massive losses of the aspects such as business, property.
The biological feather recognition method of password can be substituted become can very well solve one of method of Verify Your Identity questions, such as sound
The physical features of sound, fingerprint etc. are identified.But, there is potential safety hazard in this identifying device, the second people can obtain and mould
Imitate corresponding pattern data or the universe simply cuts physical characteristic part and can disguise oneself as the first with it from the first.In order to disappear
Except above adverse conditions, the existing method and apparatus for also having research for vivo identification.As by detection live body transmission
Electromagnetic wave (terahertz waves), the intrinsic information for therefrom extracting live body is contrasted to carry out the knowledge of live body identity with the information for storing
Not；Also have by detecting that the infrared microscopy image information of living body finger print is identified.By using by prism, light source, lens group
The harvester that part, imageing sensor are constituted is identified, however, all can use in the lens assembly of general employing acquisition means
Optical filter (face glass), and existing optical filter is essentially all the light by infrared band, and can not be targeted
The infrared band for only being sent through living body finger print, so as to affect recognition performance；Meanwhile, existing optical filter is using green
The optical filter of color, and can then not reach when being made into gold and high saturating effect is played to infrared light.As Chinese patent (authorizes public
Announcement number：CN203164459U a kind of anti-reflection filter piece) is disclosed, including 7 layers on transparent glass substrate and transparent glass substrate
Anti-reflection film, 7 layers of anti-reflection film repeatedly replace heap by the silica coating of low-refraction and the titanium oxide film layer of high index of refraction
It is stacked, 7 layers of anti-reflection film are followed successively by from the inside to the outside：1st layer, SiO2Film layer, thickness is 175.5-176nm；2nd layer, TiO2Film
Layer, thickness is 12.5-12.8nm；3rd layer, SiO2Film layer, thickness is 31.5-32nm；4th layer, TiO2Film layer, thickness is 68-
68.49nm；5th layer, SiO2Film layer, thickness is 4-4.3nm；6th layer, TiO2Film layer, thickness is 34-34.4nm；7th layer, SiO2
Film layer, thickness is 85.5-86nm.Although it just reaches anti-reflection effect by the film layer of smaller layers number, however, itself merely to
Realize to the effective anti-reflection of visible ray, and in the visible light wave range of 380nm-700nm, and for infrared band does not then reach phase
The effect answered.
The content of the invention
The present invention is for defect present in above prior art, there is provided a kind of glass surface for living body finger print identification
Plate, the problem of solution is that the infrared light wavelength for how enabling face glass to send living body finger print realizes effectively anti-reflection.
The purpose of the present invention technical scheme is that, it is a kind of for living body finger print identification glass surface
Plate, including glass substrate, it is characterised in that the upper surface of the glass substrate is coated with cover layer, and the cover layer is from inside to outside
It is followed successively by a TiO2Film, a SiO2Film, the 2nd TiO2Film, the 2nd SiO2Film, the 3rd TiO2Film and the 3rd SiO2Film, and it is described
3rd SiO2The outer surface of film is also covered with IR ink layers；The cover layer can pass through the infrared waves that living body finger print is sent
It is long.
The present invention is by adopting TiO2Film and SiO2Film carries out being alternately repeated plated film, adjusts the over-over mode of its film layer, so as to
The infrared wavelength section that can be sent to living body finger print is passed through, and improves its transmitance；In addition, by cover layer
Plated surface IR ink layers, in order to enable visible ray to be reflected designed in conjunction with the cover layer of the present invention, by anti-
After penetrating, can make to form interference effect between reflected light and incident light, so as to realize that the color film layer of unique gold can be formed,
Color effect attractive in appearance is reached, the effect that the infrared wavelength section sent to living body finger print is passed through is ensure that again；And it is right
Visible ray can realize the effect of basic cut-off, and transmitance is only below 5%.Described living body finger print is primarily referred to as in the present invention
The finger print of living person, it is of course possible to be any finger such as mother refer to, forefinger, middle finger, the third finger or little finger of toe etc.；Pin can also be included
Toe line on finger.
In the above-mentioned face glass for living body finger print identification, preferably, a TiO2The thickness of film
Spend for 60nm；First SiO2The thickness of film is 60nm；2nd TiO2The thickness of film is 40nm；2nd SiO2The thickness of film
Spend for 80nm；3rd TiO2The thickness of film is 70nm；3rd SiO2The thickness of film is 50nm.General living body finger print is sent
Infrared light wavelength between 850nm-920nm, can realize transmission of the wavelength in 850nm-920nm scope wave bands, and pass through
The high effect of rate；Meanwhile, it is in order that visible ray reflects in IR ink layers by the design main purpose to each film plating layer thickness
After can form interference effect, so as to realize that there is golden color effect, meanwhile, the light transmittance to the infrared light of living body finger print
Reach more than 98%.
In the above-mentioned face glass for living body finger print identification, preferably, the thickness of the IR ink layers is
5.4nm.By the thickness for controlling ink layer, the effect of reflection is improved, be ensure that again to wavelength in 850nm-920nm scope ripples
The transmission of section.Used as further preferably, the IR ink layers are printed using HF1000 series inks or HF1400N series inks
Form, the ability of its reflection visible ray is typically improved using the ink of black, meanwhile, it is high with printing adhesive force, and can
Improve to wavelength 850nm-920nm scope wave bands transmitance.
In the above-mentioned face glass for living body finger print identification, preferably, the living body finger print sent it is red
The a length of 850nm-920nm of outer light wave.This face glass can be realized passing through to the wavelength of the wave band, and also with high permeability
Effect.
In the above-mentioned face glass for living body finger print identification, preferably, the transmitance of the infrared light wavelength
For more than 98%.By under the collective effect of cover layer and IR ink layers, making with preferable antireflective effect such that it is able to real
Now to the wavelength of living body finger print 850nm-920nm through performance；Meanwhile, the transmitance that visible ray can be made again is controlled
Less than 5%.
In the above-mentioned face glass for living body finger print identification, preferably, the lower surface of the glass substrate is also
It is coated with AF film layers.Anti-fingerprint and antifouling effect can be played, the identification produced because of face glass surface contamination is reduced and is missed
Difference, improves the sensitive performance of identification.
In sum, the present invention compared with prior art, with advantages below：
For the face glass of living body finger print identification, by adopting TiO2Film and SiO2Film carries out alternate plating, meanwhile, knot
Close in surface printing IR ink layers, allow to the effect for realizing passing through the infrared waves length of living body finger print, light transmittance reaches
To more than 98%；Meanwhile, allow to form interference of light effect by the reflex of cover layer and IR ink layers, and by right
The control of the thickness of each plated film of cover layer, makes to generate with golden color aesthetic property.
Description of the drawings
Fig. 1 is the glass panel structure schematic diagram of the living body finger print identification of the present invention.
In figure, 1, glass substrate；2nd, cover layer；21st, a TiO2Film；22nd, a SiO2Film；23rd, the 2nd TiO2Film；
24th, the 2nd SiO2Film；25th, the 3rd TiO2Film；26th, the 3rd SiO2Film；3rd, IR ink layers；4th, AF film layers.
Specific embodiment
Below by specific embodiments and the drawings, technical scheme is described in further detail, but this
Invention is not limited to these embodiments.
Embodiment 1
As shown in figure 1, the face glass of this living body finger print identification includes glass substrate 1, wherein, the glass substrate 1 includes
Upper and lower surface, certainly, upper and lower surface mentioned here is not merely to preferably description, makees with restriction
With, then by being coated with cover layer 2 in the upper surface of glass substrate 1, the cover layer 2 is to adopt TiO2Film and SiO2Film is replaced
Plated film is formed, and can adopt conventional film plating process, is such as formed using vacuum coating or evaporation plated film, in particular, should
Cover layer 2 is followed successively by from inside to outside a TiO2Film 21, a SiO2Film 22, the 2nd TiO2Film 23, the 2nd SiO2Film the 24, the 3rd
TiO2The SiO of film 25 and the 3rd2Film 26, it is total up to 6 film structures, and the number of plies is relatively fewer, and it is right to living body finger print institute to reach again
The transmission of the infrared light wavelength answered, greatly reducing operating process, improve production efficiency, and the 3rd SiO2The appearance of film 26
Face is also covered with IR ink layers 3, it is generally advisable to making IR ink layers 3 have ink for black；Cover layer 2 can pass through living body finger print institute
The infrared light wavelength for sending.Further, a TiO in the present embodiment2The thickness of film 21 is 60nm；First SiO2Film 22
Thickness be 60nm；2nd TiO2The thickness of film 23 is 40nm；2nd SiO2The thickness of film 24 is 80nm；3rd TiO2Film 25
Thickness is 70nm；3rd SiO2The thickness of film 26 is 50nm, and the thickness at the same time it can also make IR ink layers 3 is 5.4nm, and
The lower surface for making glass substrate 1 is also covered with AF film layers 4.The face glass of this living body finger print identification can be sent out living body finger print
The wave band of a length of 850nm-920nm of infrared waves for going out has high saturating effect, and transmitance reaches more than 98%；To visible ray
Transmitance is only below 5%, and this face glass is in gold.
Embodiment 2
The present embodiment is substantially consistent with embodiment 1, differs only in, and the raw material that IR ink layers 3 therein are adopted is for black
The HF1000 series inks of color, meanwhile, the mesh number of the half tone adopted when being printed by way of silk-screen, and being printed is for 380
Mesh (equivalent to T-380), by the half tone using the mesh number, bubble, tangerine peel or flatness occur bad when being prevented from printing
The problems such as；Simultaneously, it is often more important that in order to improve transmitance of the wavelength in the light of 850nm-920nm scopes, again can be to color
It is adjusted, makes the effect for preferably reaching gold.Simultaneously, it is also possible to which the infrared waves sent to living body finger print is a length of
The wave band of 850nm-920nm has high saturating effect, and transmitance reaches more than 98%；To the transmitance of visible ray only 5% with
Under, and this face glass is in gold.
Embodiment 3
The present embodiment is substantially consistent with embodiment 1, differs only in, and the raw material that IR ink layers 3 therein are adopted is for black
The HF1400N series inks of color, meanwhile, the mesh number of the half tone adopted when being printed by way of silk-screen, and being printed is for 420
Mesh (equivalent to T-420), is prevented from the problems such as bubble, tangerine peel or bad flatness occur during printing；Simultaneously, it is often more important that
In order to improve transmitance of the wavelength in the light of 850nm-920nm scopes, color can be adjusted again, make preferably to reach gold
The effect of color.Simultaneously, it is also possible to which the wave band of a length of 850nm-920nm of infrared waves sent to living body finger print has high saturating
Effect, transmitance reaches more than 98%；To the transmitance of visible ray only below 5%, and this face glass is in gold.
Specific embodiment described in the present invention is only explanation for example spiritual to the present invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications to described specific embodiment or supplement or replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
It is skilled to this area although having made a detailed description and being cited some specific embodiments to the present invention
For technical staff, as long as it is obvious that can make various changes without departing from the spirit and scope of the present invention or correct.
Claims (7)
1. a kind of face glass for living body finger print identification, including glass substrate (1), it is characterised in that the glass substrate
(1) upper surface is coated with cover layer (2), and the cover layer (2) is followed successively by from inside to outside a TiO2Film (21), a SiO2Film
(22), the 2nd TiO2Film (23), the 2nd SiO2Film (24), the 3rd TiO2Film (25) and the 3rd SiO2Film (26), and the described 3rd
SiO2The outer surface of film (26) is also covered with IR ink layers (3)；The cover layer (2) can pass through living body finger print sent it is red
Outer optical wavelength.
2. the face glass of living body finger print identification is used for according to claim 1, it is characterised in that a TiO2Film
(21) thickness is 60nm；First SiO2The thickness of film (22) is 60nm；2nd TiO2The thickness of film (23) is
40nm；2nd SiO2The thickness of film (24) is 80nm；3rd TiO2The thickness of film (25) is 70nm；Described 3rd
SiO2The thickness of film (26) is 50nm.
3. it is according to claim 1 or claim 2 for living body finger print identification face glass, it is characterised in that the IR ink layers
(3) thickness is 5.4nm.
4. the face glass of living body finger print identification is used for according to claim 3, it is characterised in that the IR ink layers (3)
Formed using HF1000 series inks or the printing of HF1400N series inks.
5. the face glass of living body finger print identification is used for according to claim 1, it is characterised in that the living body finger print is sent out
The a length of 850nm-920nm of infrared waves for going out.
6. the face glass of living body finger print identification is used for according to claim 5, it is characterised in that the infrared light wavelength
Transmitance is more than 98%.
7. it is according to claim 1 or claim 2 for living body finger print identification face glass, it is characterised in that the glass substrate
(1) lower surface is also covered with AF film layers (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610870603.6A CN106650585B (en) | 2016-09-30 | 2016-09-30 | A kind of glass panel for living body finger print identification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610870603.6A CN106650585B (en) | 2016-09-30 | 2016-09-30 | A kind of glass panel for living body finger print identification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106650585A true CN106650585A (en) | 2017-05-10 |
| CN106650585B CN106650585B (en) | 2019-10-08 |
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ID=58854947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610870603.6A Active CN106650585B (en) | 2016-09-30 | 2016-09-30 | A kind of glass panel for living body finger print identification |
Country Status (1)
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| CN (1) | CN106650585B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107331676A (en) * | 2017-06-30 | 2017-11-07 | 信利光电股份有限公司 | Chip package camera module, camera and chip package camera module method |
| CN107341472A (en) * | 2017-07-04 | 2017-11-10 | 京东方科技集团股份有限公司 | A kind of optical fingerprint identification device and its fingerprint identification method, display device |
| CN107995347A (en) * | 2017-11-09 | 2018-05-04 | 信利光电股份有限公司 | A kind of cell phone rear cover to change colour with user mood |
| CN108914066A (en) * | 2018-08-01 | 2018-11-30 | 苏州安洁科技股份有限公司 | A kind of printing coating process |
| CN109564628A (en) * | 2018-10-15 | 2019-04-02 | 深圳市汇顶科技股份有限公司 | Fingerprint identification method, device and the terminal device with fingerprint identification function |
| WO2019134460A1 (en) * | 2018-01-03 | 2019-07-11 | 深圳印象认知技术有限公司 | Biological feature detection structure and manufacturing method therefor |
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| CN109564628A (en) * | 2018-10-15 | 2019-04-02 | 深圳市汇顶科技股份有限公司 | Fingerprint identification method, device and the terminal device with fingerprint identification function |
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| CN106650585B (en) | 2019-10-08 |
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Effective date of registration: 20200723 Address after: No. 130, Waihai, jiangmu Road, Jianghai District, Jiangmen City, Guangdong Province Patentee after: Jiangmen Weirui Electronic Technology Co., Ltd Address before: 318015, Zhejiang, Taizhou province Jiaojiang District hung Star electronic industry base building No. 4 Patentee before: ZHEJIANG XINGXING TECHNOLOGY Co.,Ltd. |
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