CN208298198U - A kind of optical finger print identification mould group - Google Patents
A kind of optical finger print identification mould group Download PDFInfo
- Publication number
- CN208298198U CN208298198U CN201721524874.2U CN201721524874U CN208298198U CN 208298198 U CN208298198 U CN 208298198U CN 201721524874 U CN201721524874 U CN 201721524874U CN 208298198 U CN208298198 U CN 208298198U
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- CN
- China
- Prior art keywords
- stand frame
- circuit substrate
- mould group
- finger print
- optical finger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
It includes circuit substrate, cmos sensor, optical lens, stand frame, prism, multiple LED light and light guide plate that the utility model, which discloses a kind of optical finger print identification mould group,.Wherein stand frame is set to circuit substrate, and optical lens, cmos sensor, prism, multiple LED light are respectively arranged at circuit substrate and are located at the inside of stand frame, and light guide plate is covered on the upper end of stand frame.The optical finger print identification mould group of the application makes full use of space, multiple components are assembled to form entirety, small in size and accessory is complete, and the light degree that the lines of itself is reflected when pressing light guide plate according to finger is different, fingerprint image is collected by cmos sensor, it is easy to operate.
Description
Technical field
The utility model relates to optical fingerprint identification technology fields, and in particular, to a kind of optical finger print identification mould group.
Background technique
In current fingerprint identification technology field, it is often used optical fingerprint sensor and is identified.However, optical finger print passes
There are prisms in sensor, and volume is larger, generally the even 10 times of sizes of several times of semiconductor, set so limiting it small-sized
Standby upper application.Using there is no the problem of volumetric constraint in the big equipment such as similar attendance recorder, gate inhibition, but in USB flash disk, wisdom hand
It is used on machine, tablet computer, volume is at maximum obstacle.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of optical finger print identification mould group.
A kind of optical finger print disclosed by the utility model identifies mould group comprising:
Circuit substrate；
Stand frame is set to circuit substrate；
Optical lens is set to circuit substrate and is located on the inside of stand frame；
Cmos sensor is set to circuit substrate and is located on the inside of stand frame；
Prism is set to circuit substrate and is located at the mad inside of bracket, and is located at cmos sensor side；
Multiple LED light are set to circuit substrate and are located on the inside of stand frame, and are located at the side of prism；And
Light guide plate is covered on stand frame upper surface.
The side of an embodiment according to the present utility model, above-mentioned stand frame is equipped with multiple limit holes, multiple limit holes
Corresponding multiple LED light.
An embodiment according to the present utility model, foregoing circuit substrate are equipped with locating piece, and the side wall of stand frame, which is equipped with, to be inserted
Slot, locating piece correspond to slot.
Compared with prior art, the utility model can be obtained including following technical effect:
The optical finger print identification mould group of the application makes full use of space, and multiple components are assembled to form entirety, small in size
And accessory is complete, the light degree that the lines of itself is reflected when pressing light guide plate according to finger is different, passes through cmos sensor
Fingerprint image is collected, it is easy to operate.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the stereoscopic schematic diagram of the optical finger print identification mould group in embodiment；
Fig. 2 is the explosive view of the optical finger print identification mould group in embodiment；
Fig. 3 is the cross-sectional view of the optical finger print identification mould group in embodiment.
Fig. 4 uses schematic diagram for the optical finger print identification mould group in embodiment.
Specific embodiment
Multiple embodiments that the utility model will be disclosed with schema below, as clearly stated, in many practices
Details will be explained in the following description.It should be appreciated, however, that the details in these practices does not apply this with limitation practical new
Type.That is, the details in these practices is non-essential in some embodiments of the utility model.In addition, for letter
For the sake of changing schema, some known usual structures and component will be painted it in the drawings in simply illustrative mode.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
It in addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill
Based on personnel can be realized, this technical side will be understood that when the combination of technical solution appearance is conflicting or cannot achieve
The combination of case is not present, also not within the protection scope of the requires of the utility model.
Fig. 1, Fig. 2 and Fig. 3 are please referred to, is respectively the stereoscopic schematic diagram, quick-fried of the optical finger print identification mould group in embodiment
Fried figure and cross-sectional view；As shown, the optical finger print identification mould group of the application includes circuit substrate 1, cmos sensor 3, optics
Camera lens 2, stand frame 4, prism 5, multiple LED light 7 and light guide plate 6.Wherein stand frame is set to circuit substrate, optical lens
2, cmos sensor 3, prism 5, multiple LED light 7 are respectively arranged at circuit substrate 1 and are located at the inside of stand frame 4.Stand frame
4 be quadrangle, and multiple LED light 7 include three LED light 7, and three LED light 7 respectively correspond three sides of stand frame 4 and are surrounded on three
Three faces of prism 5, cmos sensor 3 and optical lens 2 are then located at the other side of stand frame 4；Light guide plate 6 is covered on stand frame 4
Upper end.
More specifically, when assembling, cmos sensor 3 and three LED light 7 are mounted on 1 surface of circuit substrate, then by light
It learns camera lens 2 to be fixed on circuit substrate 1 with glue, then stand frame 4 is correspondingly arranged on circuit substrate 1, wherein stand frame 4
Side wall is set there are three limit hole 41 and a slot 42, and three limit holes 41 respectively correspond three LED light 7, the corresponding electricity of slot 42
Locating piece 11 on base board 1, stand frame 4 are placed from top to bottom, and three LED light 7 is made to be each passed through three limit holes 41, fixed
In the corresponding insertion slot 42 of position block 11, it is bonded stand frame 4 with circuit substrate 1.Then prism 5 is put into stand frame 4
It is interior and be mounted on circuit substrate 1 fixed, finally light guide plate 6 is covered on stand frame 4 fixed.
Referring to Fig. 4, it uses schematic diagram for the optical finger print identification mould group in embodiment, as shown, using
When, the finger of people, which exerts a force downwards, presses light guide plate 6, and the lines on the surface of finger is contacted with light guide plate 6, according to the refraction of light and instead
Principle is penetrated, three LED light 7 shine, emit beam and be irradiated on prism 5 from multi-angle.Finger under the irradiation of built-in light source,
Light is projected from bottom directive prism 5 through prism 5, and the light of injection on the rough strain line of finger surface fingerprint because rolling over
The angle penetrated is different, so that the bright and dark light degree reflected back is different.The light being reflected back is refracted to light by prism 5
Camera lens 2 is learned, by optical lens 2 again on image information image to cmos sensor 3, and then forms the crestal line (fingerprint of black
With the streakline of one fixed width and trend in image) and white valley line (depressed section between streakline), and form more gray scales
Fingerprint image, to complete the identification and acquisition of fingerprint.
The optical finger print identification mould group of the application makes full use of space, and multiple components are assembled to form entirety, small in size
And accessory is complete, the light degree that the lines of itself is reflected when pressing light guide plate according to finger is different, passes through cmos sensor
Fingerprint image is collected, it is easy to operate.
Upper described only the embodiments of the present invention, is not intended to limit the utility model.For this field
For technical staff, various modifications and changes may be made to the present invention.The interior institute of all spirit and principle in the utility model
Any modification, equivalent substitution, improvement and etc. of work should all include within the scope of the claims of the utility model.
Claims (3)
1. a kind of optical finger print identifies mould group, which is characterized in that including
Circuit substrate；
Stand frame is set to the circuit substrate；
Optical lens is set to the circuit substrate and is located on the inside of the stand frame；
Cmos sensor is set to the circuit substrate and is located on the inside of the stand frame；
Prism is set to the circuit substrate and is located at the mad inside of the bracket, and is located at the cmos sensor side；
Multiple LED light are set to the circuit substrate and are located on the inside of the stand frame, and are located at the side of the prism；
And
Light guide plate is covered on the stand frame upper surface.
2. optical finger print according to claim 1 identifies mould group, which is characterized in that the side of the stand frame is equipped with multiple
Limit hole, the multiple limit hole correspond to the multiple LED light.
3. optical finger print according to claim 2 identifies mould group, which is characterized in that the circuit substrate is equipped with locating piece,
The side wall of the stand frame is equipped with slot, and the locating piece corresponds to the slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721524874.2U CN208298198U (en) | 2017-11-15 | 2017-11-15 | A kind of optical finger print identification mould group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721524874.2U CN208298198U (en) | 2017-11-15 | 2017-11-15 | A kind of optical finger print identification mould group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208298198U true CN208298198U (en) | 2018-12-28 |
Family
ID=64697755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721524874.2U Expired - Fee Related CN208298198U (en) | 2017-11-15 | 2017-11-15 | A kind of optical finger print identification mould group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208298198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110879491A (en) * | 2019-04-15 | 2020-03-13 | 友达光电股份有限公司 | Display device |
-
2017
- 2017-11-15 CN CN201721524874.2U patent/CN208298198U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110879491A (en) * | 2019-04-15 | 2020-03-13 | 友达光电股份有限公司 | Display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181228 Termination date: 20191115 |