CN204595885U - A kind of fingerprint acquisition instrument - Google Patents
A kind of fingerprint acquisition instrument Download PDFInfo
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- CN204595885U CN204595885U CN201520330233.8U CN201520330233U CN204595885U CN 204595885 U CN204595885 U CN 204595885U CN 201520330233 U CN201520330233 U CN 201520330233U CN 204595885 U CN204595885 U CN 204595885U
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- luminous point
- linear array
- acquisition instrument
- fingerprint acquisition
- display module
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Abstract
A kind of fingerprint acquisition instrument, has the image scanning assembly of linear array image sensor and lens combination and reflector and gearing composition, Collection prism, light source, luminous point display module, control circuit.The image scanning assembly of linear array image sensor and lens combination and reflector and gearing composition is below Collection prism, and light source is in the side of Collection prism, and luminous point display module is in the side of the adjacent Collection prism of light source.This fingerprint acquisition instrument has the simple feature of structure.
Description
Technical field
The utility model relates to the collection field of fingerprint.
Background technology
Prior art is as a kind of three-sided fingerprint collecting method of the disclosure of the invention of Chinese invention patent 00102017.X and device, main optical path optical system is utilized to be imaged onto by finger print image on main optical path sensor, finger print image is gathered, change into electric signal: auxiliary optical path optical system is set and auxiliary optical path sensing is clamored, utilize auxiliary optical path optical system by fingerprint imaging on auxiliary optical path sensor, finger image conversion is become finger position information: by this direct information motor-drive circuit, driving circuit controls the motion of motor according to finger position information, to control the displacement of main optical path sensor and main optical path optical system.This invention can realize to finger motion in gatherer process from motion tracking.This invention is owing to arranging auxiliary optical path optical system and auxiliary optical path sensor, and its structure is more complicated.
Chinese utility model patent number: a kind of fingerprint palmmprint Acquisition Instrument disclosed in 02222587.0, have and gather prism 8, light source 9, the image scanning assembly of Linear CCD Image Sensors part 3 and lens combination 4 and reflector 5 composition, the light beam generating assembly that lens combination 1 and light emitting semiconductor device 2 form, gearing 7.The light beam generating assembly that the image scanning assembly that Linear CCD Image Sensors part 3 and lens combination 4 and reflector 5 form and lens combination 1 and light emitting semiconductor device 2 form is connected with gearing 7.The finger of collected people is followed the movement of luminous point L ' and rolls, finger print image region C is formed in the collection surface gathering prism 8, the linear image that Linear CCD Image Sensors part 3 collects in the C of finger print image region is X-Y, Linear CCD Image Sensors part 3 continues mobile, the finger of collected people continues to follow the movement of luminous point L ' and rolls, until luminous point moves to end position L ", gather and terminate, finally just collect rolling fingerprint image.
The luminous point display of its light beam generating assembly easily disturbs imaging.
Summary of the invention
The purpose of this utility model is to provide a kind of acquisition instrument that can gather rolling fingerprint.
A kind of fingerprint acquisition instrument of the present utility model, has collection prism, light source, the image scanning assembly of linear array image sensor and lens combination and reflector composition, gearing, luminous point display module, control circuit.The image scanning assembly that linear array image sensor forms with lens combination and reflector is connected with gearing, and light source is in the side of Collection prism.Luminous point display module is in the side of the adjacent collection prism of light source.This fingerprint acquisition instrument is when gathering rolling fingerprint, and gather the position of the luminous point beacon scanning of the luminous point display module display of the side of prism, finger is followed the movement of luminous point and rolls, and image scanning assembly collects rolling fingerprint image.
The utility model fingerprint acquisition instrument has the simple feature of structure.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing fingerprint acquisition instrument.
Fig. 2 is the principle schematic of existing fingerprint acquisition instrument.
Fig. 3 is the structural representation of the fingerprint acquisition instrument of embodiment.
Fig. 4 is the principle schematic of the fingerprint acquisition instrument of embodiment.
Embodiment
As shown in Figure 3, a kind of fingerprint acquisition instrument of the present embodiment, has and gathers prism 5, light source 6, the image scanning assembly of Linear CCD Image Sensors part 1 and lens combination 2 and reflector 3 composition, light emitting diode linear array luminous point display module 7, gearing 4.Linear CCD Image Sensors part 1 is connected with reflector 3 with lens combination 2, and the image scanning assembly that Linear CCD Image Sensors part 1 forms with lens combination 2 and reflector 3 is connected with gearing 4.Light source 6 is gathering the side of prism, gathers prism 5 and is positioned at lens combination 2, and linear array Image sensing is clamored part 1, reflector 3, the top of gearing 4.Light emitting diode linear array luminous point display module 7 is positioned at the side of the adjacent collection prism of light source.This fingerprint acquisition instrument is when gathering rolling fingerprint, the image scanning assembly that gearing 4 drives Linear CCD Image Sensors part 1 and lens combination 2 and reflector 3 to form at the uniform velocity moves, the collection surface side that light emitting diode linear array luminous point display module 7 is gathering prism 5 forms a luminous point, the movement of luminous point is synchronous with the movement of image scanning assembly, the position of beacon scanning.
This fingerprint acquisition instrument gathers principle composition graphs 3, Fig. 4 explanation of rolling fingerprint.As Fig. 3, shown in Fig. 4: 9 is the collection surface gathering prism 5, light emitting diode linear array luminous point display module 7, A.B is the reference position of Linear CCD Image Sensors part 1 in the linear pickup area of the collection surface 9 of collection prism 5, A " .B " for Linear CCD Image Sensors part 1 is at the end position of the linear pickup area of the collection surface 9 of collection prism 5; To be light emitting diode linear array luminous point display module gathering the reference position .L of luminous point of collection surface 9 of prism 5 to L " be the end position of the luminous point of light emitting diode linear array assembly.When this fingerprint acquisition instrument gathers rolling fingerprint, Linear CCD Image Sensors part 1 moves to A ' .B ' in the linear pickup area of the collection surface 9 gathering prism 5 by A-B, the luminous point of light emitting diode linear array luminous point display module 7 moves to L ' by L, because the movement of luminous point is synchronous with the movement of image scanning assembly, can the position of beacon scanning: the finger of collected people is followed the movement of luminous point L ' and rolls, finger print image region C is formed in the collection surface 9 gathering prism 5, the linear image that Linear CCD Image Sensors part 1 collects in the C of finger print image region is X-Y, Linear CCD Image Sensors part 1 continues mobile, the finger of collected people continues to follow the movement of luminous point L ' and rolls, until luminous point moves to end position L ", gather and terminate, finally just collect rolling fingerprint image.
Claims (5)
1. a fingerprint acquisition instrument, there is linear array image sensor, lens combination, reflector, gearing, luminous point display module, Collection prism, light source, control circuit, it is characterized in that: control circuit and linear array image sensor, gearing, light source, luminous point display module is connected, linear array image sensor, lens combination, reflector is connected with gearing, linear array image sensor, lens combination, reflector, gearing, control circuit is in the below of Collection prism, light source is in the side of Collection prism, luminous point display module is in the side of the adjacent Collection prism of light source.
2. a kind of fingerprint acquisition instrument as claimed in claim 1, is characterized in that: described Collection prism is isosceles right angle prism.
3. a kind of fingerprint acquisition instrument as claimed in claim 1, is characterized in that: described luminous point display module is light emitting diode linear array assembly.
4. a kind of fingerprint acquisition instrument as claimed in claim 1, is characterized in that: described luminous point display module is liquid crystal display linear array assembly.
5. a kind of fingerprint acquisition instrument as claimed in claim 1, is characterized in that: described linear array image sensor is linear array Charged Couple image sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520330233.8U CN204595885U (en) | 2015-05-21 | 2015-05-21 | A kind of fingerprint acquisition instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520330233.8U CN204595885U (en) | 2015-05-21 | 2015-05-21 | A kind of fingerprint acquisition instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204595885U true CN204595885U (en) | 2015-08-26 |
Family
ID=53932017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520330233.8U Expired - Fee Related CN204595885U (en) | 2015-05-21 | 2015-05-21 | A kind of fingerprint acquisition instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204595885U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109074475A (en) * | 2016-05-23 | 2018-12-21 | 苹果公司 | Electronic equipment and correlation technique including the pinhole array exposure mask laterally adjacent above optical image sensor and with light source |
-
2015
- 2015-05-21 CN CN201520330233.8U patent/CN204595885U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109074475A (en) * | 2016-05-23 | 2018-12-21 | 苹果公司 | Electronic equipment and correlation technique including the pinhole array exposure mask laterally adjacent above optical image sensor and with light source |
| CN109074475B (en) * | 2016-05-23 | 2022-03-01 | 苹果公司 | Electronic device including pinhole array mask and related methods |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20190521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |