CN101771794A - Contact-type image sensor with image false distinguishing function - Google Patents
Contact-type image sensor with image false distinguishing function Download PDFInfo
- Publication number
- CN101771794A CN101771794A CN200810249791A CN200810249791A CN101771794A CN 101771794 A CN101771794 A CN 101771794A CN 200810249791 A CN200810249791 A CN 200810249791A CN 200810249791 A CN200810249791 A CN 200810249791A CN 101771794 A CN101771794 A CN 101771794A
- Authority
- CN
- China
- Prior art keywords
- light
- ultraviolet
- printing ink
- lights
- conversion chip
- 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.)
- Pending
Links
Images
Abstract
The invention relates to a contact-type image sensor, in particular to a contact-type image sensor with an ultraviolet light source and a bank note or other image false distinguishing function device; the contact-type image sensor is characterized in that an ultraviolet light film filter is arranged above or under a lens; a photoelectric conversion chip can correspond to the local of an ultraviolet printing ink mark and also can be provided with red, green, blue or other light transmission membranes with specific wavelengths; the ultraviolet light film filter can filter ultraviolet lights which are given out by the ultraviolet light source and reflected by the ultraviolet printing ink, causes the color lights such as red, green and blue lights which are given out by the ultraviolet light source and reflected by the ultraviolet printing ink into the photoelectric conversion chip to only reflect the reflecting character of the ultraviolet printing ink; the light transmission membranes with the specific wavelengths can filter the lights except for the lights with the specific wavelengths and can be passed through only by the lights with the specific wavelengths so that the photoelectric conversion chip only receives the lights with the specific wavelength which only reflects the more specific character of the reflected light color of the ultraviolet printing ink, thus increasing the simulation difficulty of forged notes and the like by the ultraviolet printing ink which reflects the specific color lights by the matching.
Description
Affiliated technical field
The present invention relates to imageing sensor, at length say it is a kind of contact-type image sensor that has banknote or other image counterfeit identifying function devices with ultraviolet source.
Background technology
We know, existing all-in-one multifunctional machine, the dedicated scan instrument, the employed contact-type image sensor of pattern recognition devices such as facsimile machine, be under framework, wiring board to be arranged, the opto-electronic conversion chip is arranged on the wiring board, opto-electronic conversion chip top is provided with lens, lens one side or both sides are provided with light source, the framework top is provided with the glass plate that carries original copy, expansion along with application, function to imageing sensor proposes more requirement, need use ultraviolet light as banking system banknote false distinguishing facility, be mapped to the sign of the inner ultraviolet ink printing of banknote by ultraviolet lighting, the sign of ultraviolet ink printing can reflect color of light and ultraviolet lights such as RGB, imageing sensor is finished the true and false that the sign of identification banknote inside is discerned banknote by reading reverberation, but along with the development of making pseudo-technology, the true and false that simple sign by the reflection of ultraviolet printing ink is discerned banknote can not be discerned counterfeit money fully.
Summary of the invention
The objective of the invention is in order to solve the problem of banknote or the effective false distinguishing of other images, propose a kind of contact-type image sensor with ultraviolet light filter coating and RGB or other special wavelength light light-transmissive film devices.
The present invention's technical scheme that is adopted of dealing with problems is:
A kind of contact-type image sensor that possesses the image counterfeit identifying function, be provided with framework, there is wiring board the framework below, the opto-electronic conversion chip is arranged on the wiring board, opto-electronic conversion chip top is equipped with lens, the lens one or both sides are provided with light source, ultraviolet source is arranged in the light source, there is glass plate the framework top, it is characterized in that being provided with the ultraviolet light filter coating above or below the lens, the ultraviolet light filter coating generally adopts the coating that applied filtering ultraviolet on the transparent membrane, play the ultraviolet light that filters the reflection of ultraviolet printing ink sign, make be transferred on the opto-electronic conversion chip for reflecting the visible lights such as RGB of ultraviolet printing ink sign, by reading the output valve of certain amplitude, differentiate whether ultraviolet printing ink sign is arranged, reach and distinguish true from false.
The present invention can be provided with light-transmissive film on the ultraviolet light filter coating above or below the lens, described light-transmissive film is for seeing through the light light-transmissive film of certain wavelength light, light-transmissive film above or below the lens generally adopts and applies particular color printing ink on the transparent membrane, play and see through special wavelength light, the effect of other wavelength light beyond the filter specific wavelengths light, light-transmissive film can be to see through red light, also can adopt through green light, can also adopt through blue light, so that the opto-electronic conversion chip receives only the light of a certain color that sees through, with identification ultraviolet printing ink sign reflection particular color feature, improved accuracy of identification.
The present invention can be provided with the light-transmissive film of different wave length on opto-electronic conversion chip optical window, light-transmissive film on the opto-electronic conversion chip optical window generally adopts the printing ink of particular color directly to be coated on the electric conversion chip optical window by special process, light-transmissive film can be to see through red light, also can adopt through green light, can also adopt through blue light, also can be to see through other special wavelength light light-transmissive films, the part that on its opto-electronic conversion chip can be corresponding ultraviolet printing ink sign is provided with through red, light-transmissive films such as green and blueness, also can be all to be provided with to see through redness, green and blue light light-transmissive film, read the output valve of the optical window of RGB light-transmissive film correspondence respectively, conversion by the opto-electronic conversion chip, with particular color feature in the RGB of the color characteristic of identification ultraviolet printing ink sign reflection and reflection, improved accuracy of identification.
The present invention can also be on opto-electronic conversion chip optical window the regular light-transmissive film that is provided with periodically, light-transmissive film generally adopts the precise glue dispensing machine to carry out a coating, the light-transmissive film of one-period can be arranged to see through red, green and blue, also can be arranged to see through redness, green, can also be arranged to see through red, blue; Blue, colourless; Red, colourless, green; Various ways such as red, blue, colourless, output valve with the pixel of the light-transmissive film correspondence that reads various ways such as RGB respectively, by the conversion of opto-electronic conversion chip, thereby realize improving the emulation difficulty of counterfeit money etc. by proportioning reflection light of particular color and ultraviolet printing ink.
The present invention can filter out the luminous ultraviolet light through the reflection of ultraviolet printing ink of ultraviolet source by the ultraviolet light filter coating, by differentiating whether ultraviolet printing ink sign is arranged, reaches and distinguish true from false.
The present invention also passes through the luminous color of light such as RGB through the reflection of ultraviolet printing ink of ultraviolet source, makes that reflexing on the opto-electronic conversion chip only is the color of light such as RGB of reflection ultraviolet printing ink reflectance signature.
The present invention by by the ultraviolet light filter coating and which is provided with see through special wavelength light light-transmissive film such as RGB, can filter light beyond the specific wavelength and the light by specific wavelength only, have or not and the turquoise middle particular color Feature Recognition of ultraviolet printing ink sign reflect red to carry out ultraviolet printing ink sign, improved accuracy of identification.
The present invention is by by the regular light-transmissive film that is provided with periodically on ultraviolet light filter coating and the opto-electronic conversion chip, discern the color characteristic of ultraviolet printing ink sign reflection, thereby realize improving the emulation difficulty of counterfeit money etc. by the ultraviolet printing ink that proportioning reflects certain color of light.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is that light-transmissive film is provided with schematic diagram on the opto-electronic conversion chip of the present invention.
Mark among the figure: framework 1, light source 2, glass plate 3, lens 4, ultraviolet light filter coating 5, ultraviolet source 6, special wavelength light light-transmissive film 7, opto-electronic conversion chip 8, wiring board 9, red light light-transmissive film 7-1, green light light-transmissive film 7-2, blue light light-transmissive film 7-3, other special wavelength light light-transmissive films 7-4.
Embodiment:
The invention will be further described below in conjunction with drawings and Examples.
As shown in drawings: a kind of contact-type image sensor that possesses the image counterfeit identifying function, be provided with framework 1, framework 1 bottom is provided with wiring board 9, opto-electronic conversion chip 8 is installed on the wiring board 9, opto-electronic conversion chip 8 upper fixed have lens 4, lens 4 one sides are equipped with light source 2, framework 1 top is provided with glass plate 3, and is above-mentioned same as the prior art, and belonging to those skilled in the art should know, this does not give unnecessary details, the invention is characterized in to be provided with ultraviolet light filter coating 5 above or below the lens 4, filter coating 5 filters out the ultraviolet light that ultraviolet source sends, to read the output valve of certain amplitude, differentiate whether ultraviolet printing ink sign is arranged, reach and distinguish true from false.
The present invention can be provided with light-transmissive film 7 on the ultraviolet light filter coating above or below the lens, light-transmissive film of the present invention is for seeing through the light light-transmissive film of certain wavelength light, light-transmissive film 7 can be to see through redness, also can adopt and see through green, can also adopt and see through blueness, so that the opto-electronic conversion chip receives only the light of a certain color that sees through, and color of light such as RGB by reflecting, make that the light that reflexes on the opto-electronic conversion chip 8 only is the color of light such as RGB of reflection ultraviolet printing ink reflectance signature, have or not and the turquoise middle particular color Feature Recognition of ultraviolet printing ink sign reflect red to carry out ultraviolet printing ink sign, improved accuracy of identification.
But the present invention also arranges different wavelengths of light light-transmissive film 7 on the opto-electronic conversion chip 8 regularly, light-transmissive film on the opto-electronic conversion chip 8 generally is meant red light 7-1, green light 7-2 and blue light 7-3, also can be other special wavelength light light-transmissive films 7-4, the part that on its opto-electronic conversion chip 8 can be corresponding ultraviolet printing ink sign is provided with red light 7-1, light-transmissive films 7 such as green light 7-2 and blue light 7-3, also can be all to be provided with red light 7-1, green light 7-2 and blue light 7-3 light-transmissive film 7, light-transmissive film 7 is by red light 7-1, green light 7-2, blue light 7-3 and other special wavelength light light-transmissive films 7-4 arrange regularly, as press 7-1,7-2,7-3, the order repeated arrangement of 7-4, or press 7-4,7-3,7-2,7-1 order repeated arrangement, or press 7-3,7-2,7-4,7-1 order repeated arrangement, or press 7-1,7-1,7-2,7-1,7-1, the order repeated arrangement of 7-2, or press 7-1,7-2,7-4, the order repeated arrangement of 7-4, can be by 7-1,7-4,7-2,7-4,7-3, the order repeated arrangement of 7-4, with the color characteristic of identification ultraviolet printing ink sign reflection, thus the emulation difficulty of realization raising counterfeit money etc.
Claims (4)
1. contact-type image sensor that possesses the image counterfeit identifying function, be provided with framework, there is wiring board the framework below, the opto-electronic conversion chip is arranged on the wiring board, opto-electronic conversion chip top is equipped with lens, the lens one or both sides are provided with light source, and there is glass plate the framework top, it is characterized in that being provided with the ultraviolet light filter coating above or below the lens.
2. a kind of contact-type image sensor that possesses the image counterfeit identifying function according to claim 1 is characterized in that the ultraviolet light filter coating above or below the lens is provided with light-transmissive film.
3. a kind of contact-type image sensor that possesses the image counterfeit identifying function according to claim 1 is characterized in that the opto-electronic conversion chip is provided with light-transmissive film.
4. a kind of contact-type image sensor that possesses the image counterfeit identifying function according to claim 3 is characterized in that the opto-electronic conversion chip is provided with the light-transmissive film of the periodic arrangement of different wave length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810249791A CN101771794A (en) | 2008-12-31 | 2008-12-31 | Contact-type image sensor with image false distinguishing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810249791A CN101771794A (en) | 2008-12-31 | 2008-12-31 | Contact-type image sensor with image false distinguishing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101771794A true CN101771794A (en) | 2010-07-07 |
Family
ID=42504361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810249791A Pending CN101771794A (en) | 2008-12-31 | 2008-12-31 | Contact-type image sensor with image false distinguishing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101771794A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102034296A (en) * | 2011-01-07 | 2011-04-27 | 张文峰 | Sympathetic ink recognition device, currency counter and currency detector |
| CN109668849A (en) * | 2018-12-30 | 2019-04-23 | 沈阳中钞信达金融设备有限公司 | Array color fluorescence ink graphics context detection system |
| CN110365861A (en) * | 2019-06-13 | 2019-10-22 | 威海华菱光电股份有限公司 | Read method, device, storage medium and the processor of fluorescent ink image |
-
2008
- 2008-12-31 CN CN200810249791A patent/CN101771794A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102034296A (en) * | 2011-01-07 | 2011-04-27 | 张文峰 | Sympathetic ink recognition device, currency counter and currency detector |
| CN109668849A (en) * | 2018-12-30 | 2019-04-23 | 沈阳中钞信达金融设备有限公司 | Array color fluorescence ink graphics context detection system |
| CN110365861A (en) * | 2019-06-13 | 2019-10-22 | 威海华菱光电股份有限公司 | Read method, device, storage medium and the processor of fluorescent ink image |
| CN110365861B (en) * | 2019-06-13 | 2021-08-03 | 威海华菱光电股份有限公司 | Fluorescent ink image reading method and device, storage medium and processor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101699844A (en) | Full-spectrum identification image sensor | |
| CN101986352B (en) | Contact image sensor | |
| CN201323623Y (en) | Contact-type image sensor with image fake distinguishing function | |
| JP4703403B2 (en) | Inspection device | |
| CN108108718A (en) | The thin-film transistor display panel that optical finger print recognizes in screen | |
| CN102077567A (en) | Reading device | |
| CN104220271B (en) | Optical pickup device, optical reading method and program | |
| CN101771794A (en) | Contact-type image sensor with image false distinguishing function | |
| CN112183483A (en) | Integrated real finger spectrum sensing device and sensing method | |
| CN101860645A (en) | Contact-type image sensor for identifying hologram image | |
| CN102077568A (en) | Booklet reading device | |
| CN102999964B (en) | Variable ink recognition device and banknote discriminating device | |
| CN102142166B (en) | Driving circuit of color changing ink recognition device in currency count machine | |
| CN201498041U (en) | Contact-type image sensor | |
| JP3862420B2 (en) | Paper sheet authenticity identification device | |
| CN102509381A (en) | Method and device for detecting optically variable ink of RMB paper money | |
| CN202854941U (en) | Variable color fiber or printing ink detecting and discriminating device | |
| CN104464076A (en) | Contact type digital image acquisition device | |
| CN207851842U (en) | The thin-film transistor display panel of optical finger print identification in screen | |
| CN104215613B (en) | Sheet paper identification device and optical sensor arrangement | |
| CN201563183U (en) | Full-spectrum identifying image sensor | |
| CN2760676Y (en) | Certificate information collecting meter | |
| CN1920888A (en) | Fake member detecting instrument | |
| CN203632747U (en) | Multispectral stereo CIS scan module and corresponding bill scan imaging system | |
| CN203941566U (en) | A kind of incorgruous light digital image collecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20100707 |