CN100390809C - Scanner with waveguide for scanning paper currency - Google Patents
Scanner with waveguide for scanning paper currency Download PDFInfo
- Publication number
- CN100390809C CN100390809C CNB018142958A CN01814295A CN100390809C CN 100390809 C CN100390809 C CN 100390809C CN B018142958 A CNB018142958 A CN B018142958A CN 01814295 A CN01814295 A CN 01814295A CN 100390809 C CN100390809 C CN 100390809C
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- China
- Prior art keywords
- light
- waveguide
- emitting diode
- scanning
- scanning area
- 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.)
- Expired - Fee Related
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10554—Moving beam scanning
- G06K7/10564—Light sources
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10554—Moving beam scanning
- G06K7/10594—Beam path
- G06K7/10683—Arrangement of fixed elements
- G06K7/10702—Particularities of propagating elements, e.g. lenses, mirrors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y99/00—Subject matter not provided for in other groups of this subclass
Abstract
A light-scanner (200) that includes a wave guide (230). The scanner (200) defines a scanning zone, and further includes a light-emitting diode (214), and a detector. The wave guide (230) is disposed between the light-emitting diode (214) and the scanning zone. The wave guide (230) defines a light-admitting aperture and a light-reflective surface. The light-admitting aperture and light-reflecting surface cooperate to direct light from the light-emitting diode toward the scanning zone, and to focus such light centrally along a path traveled by such light toward the detector.
Description
Technical field
Relate generally to scanner of the present invention.Especially, the present invention relates to a kind of equipment and method that is used for scanning paper currency, with authenticity that realizes the check currency and the purpose of determining its face amount.
Background technology
Conventional bank note scanister is, for example, typically with the automatic vending machine that offers consumer's beverage and snack, be positioned at the public place of entertainment and/or be provided for exchanging the mechanical hook-up that separates of video-game of coin of bank note with the amusement slot machine that receives bank note relevant.These scanister have typically used light source so that irradiation currency and extract the detector system of feature or characteristic from currency.
U.S. government for example, has introduced a kind of banknote recently, and they comprise asymmetrical significantly mark, the individual portrait of Shu Xiing for example, and used other unique trait and feature, so that make the forgery of currency more difficult.In addition, many other national bank note have multicolour and size because of the difference of face amount.
As the result of this security measurement, the bank note scanister of multiple routine also often uses at least one light source and relevant collimation lens with system, to produce the parallel light of a branch of essence that passes through and shine bank note from bank note one side.
Typically be positioned on the currency opposite side of irradiation is the relevant plane/convex lens that are used to assemble from the scattered beam of banknote, and after this under perfect condition, provide the scattered beam of gathering to the correlation detector that designs, so that can check the authenticity of the banknote that is scanned and detect its face amount.
And, convex lens typically with the desirable plane of scanning motion (being used for bank note) separately so that the focus of these lens contact scanning plane ideally.
Therefore, under perfect condition, for safety, present mark that bank note had and further feature can provide the information of comparing with particular memory information to the light by the banknote that is scanned, with realize bank note that check is scanned authenticity and the purpose of its face amount.
Yet bank note may make banknote depart from lens focus in moving on the desirable plane of scanning motion or under the plane.Aligning and the optically focused gone up have on one point brought restriction to design, and particularly actual conditions are that the small displacement that departs from one (1) millimeter of desirable focal position may make focus depart from its relevant desirable position of checking.In addition, damaged, tie up, fade, have a lot of folding lines or fold or may make problem severeer with the bank note of old attenuation.
And the characteristic of Hard copy body is a scattered light.The result is, after this scattered light of being assembled, pass the banknote that is positioned at the desirable plane of scanning motion may all not arrive detecting device, the light that perhaps passes convex lens may be assembled the light from the banknote that is scanned behind the desirable surveyed area, and any result is not desirable.
Therefore, when comparing with this calibration information, for the above reasons, between the calibration information of banknote and storage, there are differences from the information of the banknote that is scanned, and the nonuniformity (non-compliance) that has the specific wavelength of light.
Banknote that is scanned and the difference between the calibration information may be in the tolerances in design of many conventional currency scanister, and the result is the banknote that can accept to be scanned.Yet the nonuniformity of wavelength but is another problem.
In order to address this is that, conventional currency scanister can comprise, as the particular led device (or so-called " assembly ") of light light source, that the multi-wavelength can be provided.
Therefore, the light emitting diode (LED) that conventional scanner can have a plurality of prior arts is to realize " solution " viewed problem.
At this on the one hand, when in conjunction with above-mentioned conventional currency scanister, can provide that to have wavelengths characteristic be 470,505,620,730,340 and 940 millimicrons light source to the single current commercial usable LED assembly of working between the infrared ray to scanister in blueness.
Unfortunately, if this scanister will check currency authenticity and face amount to satisfy their commercial object, the bank note scanister of the prior art of current design uses 12 or the more above-mentioned LED assembly of mentioning usually.
Owing to many reasons, the quantity that therefore need make above-mentioned current usable LED assembly from 12 or be kept to more be less than four.
Summary of the invention
The present invention relates to a kind of scanner equipment that does not need collimation lens.On the contrary, this scanning device has used waveguide.In addition, the consequence devised of the scanning device of the present invention quantity that allowed to make light emitting diode (LED) assembly from 12 or be reduced to four or still less more.
Scanning device of the present invention is used for scanning paper currency best, with authenticity that realizes check bank note and the purpose of judging its face amount.
And when scanner equipment of the present invention used four LED assemblies, each LED assembly was set to relative with the currency plane of scanning motion best, so that the different azimuth of scanning paper currency.
Therefore, scanner equipment of the present invention comprises scanning area, at least one light emitting diode, at least one photodetector, and waveguide.
The scanning area of scanner has been stipulated opposite side, and by sizing, can be set between the opposite side so that can scan thing.
Light-emitting diode assembly is set at a side of scanning area, and the light of visibly different energy source class can be provided.And light-emitting diode assembly is set to relative with scanning area, so that make the light relevant with this diode apparatus can scan at least a portion that can scan thing.
Optical detector device and light emitting diode are separately, and also be set to relative with the scanning area of scanner, can provide information from light-emitting diode assembly light emission and that pass scanning area subsequently, so that the feature of the object that photodetector can obtain to be scanned in the zone.
Waveguide is arranged between light-emitting diode assembly and the scanning area.Waveguide has stipulated that at least one light imports aperture and at least one light reflective surface, wherein light imports aperture and light reflective surface cooperation so that the light of the diode apparatus of autoluminescence in the future is directed to scanning area, and along concentrated area, path that this light is advanced with the direction focusing of this light towards detecting device.
Described light-emitting diode assembly has at least two light-emitting diode components separately, wherein waveguide is elongated and defines end separately, and this waveguide comprises two light-transmissive window separately, each window is positioned at the contiguous place of one of waveguide end, and each window is relevant with one of corresponding light-emitting diode component, to allow light to enter waveguide, and waveguide also comprises the internal light reflection surface that receives light by at least one window from diode assembly, described internal light reflection surface is from guiding the light in the waveguide with respect to the end parts concentrated area of window, and after this described light concentrated towards scanning area.
The internal light reflection surface of waveguide comprises a pair of reflecting surface, each surface lays respectively at the contiguous place of one of waveguide end separately, each end reflections surface is positioned at the contiguous place of one of corresponding light-emitting diode component, and each end reflections surface is set to relative with its relevant light-emitting diode component, from this end reflections surface reflection from the light of its relevant light-emitting diode component and between the end reflections surface, concentrate described light, the internal light reflection surface of waveguide also comprises the middle reflecting surface between the end reflections surface, in the middle of described reflecting surface be set to relative with end reflections surface so that receive concentrated light from the end reflections surface and the light that will concentrate as one man reflects towards scanning area.
Description of drawings
Fig. 1 is the synoptic diagram that is used to scan the conventional equipment of currency.
Fig. 2 is the synoptic diagram of first embodiment of scanner equipment of the present invention.
Fig. 3 is the synoptic diagram of lower part that the embodiment of Fig. 2 is shown.
Fig. 4 is along the common bottom plan view that adopts of the face 4-4 of Fig. 3.
Fig. 5 A is a synoptic diagram of describing the depicted example of the feature of the present invention shown in Fig. 3 summary with the ratio of relative amplification.Fig. 5 B is another synoptic diagram of describing the depicted example of the notable feature shown in Fig. 3 summary with the ratio of relative amplification.
Fig. 6 is another preferred embodiment of describing scanning device of the present invention with side view and schematic form.
Fig. 7 is another preferred embodiment of describing scanning device of the present invention with side view and illustrative format.
Run through full figure, the identical identical parts part of reference number indication.
Embodiment
To the scanner of prior art and the elaboration of relevant issues
Fig. 1 is a synoptic diagram of describing the conventional equipment 100 that is used for scanning paper currency.Equipment 100 comprises opening or the aperture 102 with typical elongate groove form, so that insert bank note in equipment 100.
Currency inserts aperture or opening 102 comprises coboundary 104 and lower boundary 106.Make currency (not shown) by opening 102 insertion equipment 100 along the path 110 (illustrating) with dot-and-dash line move, described path can be looked at as the plane of the page of the Fig. 1 that extends to patent specification.
Also being introduced into the described routine of Fig. 1 in being provided with is corresponding a plurality of collimation lenses 116, and wherein alongst each lens have similar interval to lower boundary 106 usually.In described conventional sweep device was provided with, each collimation lens 116 was relevant with its corresponding LED assembly 114.Therefore, the result of shown scanner setting is that each collimation lens 116 is between lower boundary 106 and relative LED assembly 114.
The currency scanning device 100 of Fig. 1 comprises that also corresponding a plurality of simple plane light focuses on convex lens (simple planar convex light-focusing lenses) 122.Each simple plane light focuses on convex lens 122 and is placed between coboundary 104 and the relevant currency authenticity/value detecting device 120.
In perfect condition, each simple plane light focuses on the preliminary election part (or point) of correlation detector 120 that convex lens 122 can gather the light that passes bank note it.
In the operation, a plurality of simple plane light focus on convex lens 122 focuses on light, so that make a plurality of detecting devices 120 can detect the specific light energy level, with authenticity that realizes the currency that check is inserted and the purpose that detects its face amount.
Therefore currency scanning device 100 shown in Figure 1 also must comprise corresponding a plurality of detecting devices 120, and wherein each detecting device can be checked the authenticity of currency and detect relevant face amount.
In addition, the current design of a plurality of detecting devices 120 (that is, 12 or more) is alongst generally identical at interval with coboundary 104 distance.Based on above-mentioned purpose, each detecting device 120 is relevant with collimation lens 116 with corresponding LED assembly 114 with corresponding light condenser lens 122.
Conventional scanner still has problems.As above-mentioned, on the required plane of scanning motion or under moving of bank note may make banknote depart from the focus that light focuses on convex lens 122.And paper has the natural characteristic of scattered light.The result is, even when conventional equipment 100 has above-mentioned a plurality of LED assemblies 114 and relevant a plurality of collimation lenses 116, convex lens 122 and detecting device 120, synthetic scattered light, promptly pass and be arranged in the scattered light of the banknote of the plane of scanning motion 110 of gathered light after this, may all not arrive one or more detecting devices 120, the light that perhaps passes one or more convex lens 122 may make from the light of the banknote of the scanning behind the described surveyed area of correlation detector 120 to be assembled, and any result is not required.
It is the major obstacle that current scanner fabricator is faced that each LED grouping 114 is aimed at associated lens 116 and 112, and wrong the aligning is frequent thing.
Unnecessary complexity may cause the cost of equipment excessively expensive, and the reliability that may influence operation of equipment.Therefore need reduce the complexity of scanner equipment by the quantity that reduces at present LED assembly required in the bank note scanner of prior art and associated components, allow thus to reduce above-mentioned associated components, the result is that equipment has less complexity.
The diversity of parts parts may not influence the requirement of volume aspect of conventional sweep device and the consideration of relevant outward appearance aspect with meeting the requirements.For the demand of minimized volume aspect, therefore the quantity that reduces parts may become and meet the requirements.
The equipment with less complexity that what is also needed is composition still can be checked the authenticity of currency with quite high reliability and accuracy and statistical accuracy, and value of money or the face amount of judging it.
The detailed description of most preferred embodiment
Fig. 2 has schematically described an embodiment of scanner equipment 200 of the present invention.Equipment 200 preferably is used to scanning paper currency, so that check the authenticity of bank note and judge its face amount.
Bank note scanning device 200 comprises no more than four following light-emitting diode component 214, describes the position of described light-emitting diode component below in conjunction with Fig. 4.
Each light emitting diode (LED) assembly 214 can produce the light with multiple visibly different wavelength, and wherein various wavelength have discrete energy level.Best, each LED assembly 214 can produce and have two light to ten discrete different-energy levels.Better, each LED assembly 214 can produce according to wavelength, have four light to eight discrete different-energy levels.Best LED assembly 214 (shown in Figure 4) can produce the light with six different-energy levels.Especially, the best LED assembly 214 of current scanner equipment can produce have 470,505,620,730,840 with the light of relevant discrete different wave length of 940 millimicrons.Especially, Fig. 4 has schematically described six apertures on the LED assembly 214, and wherein aperture 218A, 218B, 218C, 218D, 218E and 218F are relevant with one of six different wave lengths of the above-mentioned light of just having mentioned respectively.
Scanner equipment 200 of the present invention does not need collimation lens.On the contrary, scanner equipment 200 of the present invention comprises waveguide 230.What waveguide 230 comprised the polishing that is positioned at the opposite end knows window 232.It is relative with relevant LED assembly 214 that window 232 is set to, so that come the light of auto-correlation LED assembly 214 can enter waveguide 230.
Described waveguide 230 also comprises side surface 234 and groove surfaces 236, the direction that is used for the bank note that will advance towards 210 (the illustrating with dot-and-dash line) along the path from the light of LED assembly 214 is guided, and wherein said path 210 is considered to extend to the plane on the page orientation of the Fig. 2 in this patent specification.The side surface 234 that is arranged on waveguide 230 opposite ends has been metallized.As above-mentioned, it is relative with relevant LED assembly 214 that each metalized surface 234 is set to, so that will guide towards the direction of scanning pattern 210 from the light of LED214.
Based on following reason, groove surfaces 236 is with respect to axle A-A (Fig. 3) symmetry.The first, light source (being provided by LED assembly 214) longitudinally is arranged on the opposite end of waveguide 230.And it is relative with their relevant LED assembly 214 that the angled side surface 234 of waveguide 230 also is set to, so that the reflected light of six discrete different wave lengths is assembled towards central shaft A-A.In addition, groove surfaces 236 is made up of small illustrative groove 236A (Fig. 5 A) and groove 236B (Fig. 5 B) that light is concentrated to the center itself.
Aspect above-mentioned, tolerance is positioned at the size of the triangular groove 236B (Fig. 5 B) the window 232 near further, so that the first of six wavelength can be assembled towards axle A-A with the concentrated area from side surface 234 and groove 236 reflections.With interval even tightr (Fig. 5 A) of the contiguous minute recesses 236A of central shaft A-A, assembled towards axle A-A by the concentrated area so that make from the second portion of six wavelength of the light of LED assembly 214.Therefore with central shaft groove opposite surface 236 in form additional minute recesses (not shown) symmetrically, assembled six all wavelength from the light of LED assembly 214 up to the concentrated area.
Briefly with reference to figure 3, also must consider relevant small groove 236A (Fig. 5 A) and 236B (Fig. 5 B) with the direction of the described angle of prompting groove surfaces 236, to obtain effect disclosed herein.
According to design, groove surfaces 236 comprises minute recesses, and the size of described groove reduces towards the direction of central shaft A-A symmetrically, to admit the different frequency of six different wave lengths, make the light of uniform strength can be along the path 210 scanning paper currencies.The efficient main effect of cost has been to use the light energy source of minimum number and " bar shaped " or the leg-of-mutton light of the unanimity that produces.
So-called " pigeon " prism that described waveguide 230 (Fig. 2 and 3) is made up of commercial available polypropylene material, described polypropylene material not only has the high grade of transparency but also can transmit light efficiently, has therefore obtained whole internal reflections in fact.
As mentioned above, used commercial available high reflection material metallize side surface 234 and groove surfaces 236, so as with the light concentrated area to axle A-A and path 210 reflections.Further, particular design groove surfaces 236 itselfs so that discrete different wave length is as one man assembled towards the object of currency of equipment 200 scannings and so on relevant light that can source class.
Among Fig. 6, show scanning device 300, comprise waveguide 330 and LED assembly 314, and the light reflective side surfaces 334 separately that is arranged on the relative vertical end of waveguide 330.Waveguide 330 also comprise a pair of polishing separately know light transmissive window 332, each window be positioned at relevant LED assembly 314 near so that obtain above-mentioned " striation " effect.
In conjunction with the design of above-mentioned waveguide 330, this embodiment replaces groove surfaces (above-mentioned) is holography, variable light shaping diffuser surface (light-shaping diffusersurface) 350 between window 332.Light shaping diffuser surface 350 is upwards catoptrical, and the result is that the commercial available metal material 352 of one deck is used to the side.Especially, the changeability of having used the light shaping diffuser surface 350 of disclosed technology in the common undelegated patented claim of transferring the possession of to have can obtain the same effect of the variable groove surfaces 236 of scanner equipment 200, with with the internal reflected light in the waveguide 330 towards the central shaft B-B of equipment 300 and upwards focus on, obtain significant " striation " effect of scanning object.
In order to obtain above-mentioned effect, core 360 (in Fig. 6 between the dot-and-dash line of drawn homeotropic alignment) preferably has along the key lights output distribution angle (distributionangle) of 80 to 95 degree of length and passes 25 to 35 inferior light distribution angle degree of the width of the bank note that is scanned.Light shaping diffuser surface 350 also comprises end 362 separately, and each described end 362 is positioned at the vicinity of relevant LED assembly.In addition, each end 362 preferably has along 60 to 75 leading role's degree of spending of length and 10 to the 25 inferior angles of spending of passing the currency width of scanner 300 310 scannings along the path.
For the light that the center on the light shaping diffuser surface 350 that receives self-waveguide 330 is assembled, upwards arranged, this equipment also comprises the light profiled surface diffuser layer 370 that is arranged on above the waveguide 330, as shown in Figure 6.
But the chip select of commercial available prismatic material 380 can be set at the opposite side with respect to the path 310 of light profiled surface diffuser layer 370, to reduce the influence of the light that sends from the rear side of the currency that is scanned.
As shown in Figure 7, another embodiment of scanner equipment 400 of the present invention comprise waveguide 440 and and be arranged on light profiled surface diffuser layer 470 on the waveguide 440, with scanner equipment 300 identical (please refer to Fig. 6).Be positioned at that a plurality of detecting devices 420 with respect to the opposite side in the path 410 of waveguide 440 are set to along the path 410 length and mutually relatively, use the conventional mechanical device and make it the authenticity of 410 currency of advancing and determine its face amount along the path so that upcheck.According to the size of the currency that scans, delegation's detecting device 420 can comprise eight to 12 detecting devices 420.
The sheet of commercial available prismatic material 480 is set between path 410 and the light profiled surface diffuser layer 470, so that reduce the effect of light scattering, and the light between collimation diffuser layer 470 and the path 410.Between detecting device 420 and path 410, has the commercial available prismatic material 480 of another sheet at least, described commercial available prismatic material 480 preferably has the prismatic grooves (not output) that vertically is provided with respect to currency, wherein said currency is initiated to 410 advancing along the path, that is, outside the plane of the page of Fig. 7.Another additional commercial available prismatic material 484 can be set between prismatic material piece 482 and the detecting device 420, so that reduce the effect of the light scattering between path 410 and the detecting device 420.
This paper has illustrated and the content described is the new scanner equipment that is used for bank note.Though described scanner equipment of the present invention with reference to several preferred embodiments, those of ordinary skill in the art should be understood that value of the present invention after reading the disclosure, and the specific equivalent of knowing element disclosed herein and parts.Therefore, the present invention is not limited to present optimum embodiment, but provides the most possible scope as claims allow.
Claims (3)
1. scanner equipment comprises:
(A) scanning area, regulation opposite side and by designated size, but so that scanning object is placed between the opposite side;
(B) light-emitting diode assembly, but be arranged on a side of scanning area and spaced apart with scanning object, wherein light-emitting diode assembly can provide the light of multiple visibly different energy source class, and light-emitting diode assembly be set to relative with scanning area, but so that make its relative photo can scan at least a portion of scanning object;
(C) detector means, with light-emitting device separately, and be set to relatively with scanning area, make detecting device can obtain the feature of scanned object from light-emitting diode assembly and the light that passes scanning area; With
(D) waveguide, be arranged between light-emitting diode assembly and the scanning area, wherein waveguide has stipulated that light imports aperture and light reflective surface, light imports aperture and light reflective surface cooperation so that the light of the diode apparatus of autoluminescence in the future is directed to scanning area, and along concentrated area, path that this light is advanced with the direction focusing of this light towards detecting device; It is characterized in that described light-emitting diode assembly has at least two light-emitting diode components separately, wherein waveguide is elongated and defines end separately, and this waveguide comprises two light-transmissive window separately, each window is positioned at the contiguous place of one of waveguide end, and each window is relevant with one of corresponding light-emitting diode component, to allow light to enter waveguide, and waveguide also comprises the internal light reflection surface that receives light by at least one window from diode assembly, described internal light reflection surface is from guiding the light in the waveguide with respect to the end parts concentrated area of window, and after this described light concentrated towards scanning area;
And the internal light reflection surface of waveguide comprises a pair of reflecting surface, each surface lays respectively at the contiguous place of one of waveguide end separately, each end reflections surface is positioned at the contiguous place of one of corresponding light-emitting diode component, and each end reflections surface is set to relative with its relevant light-emitting diode component, from this end reflections surface reflection from the light of its relevant light-emitting diode component and between the end reflections surface, concentrate described light, the internal light reflection surface of waveguide also comprises the middle reflecting surface between the end reflections surface, in the middle of described reflecting surface be set to relative with end reflections surface so that receive concentrated light from the end reflections surface and the light that will concentrate as one man reflects towards scanning area.
2. scanner equipment as claimed in claim 1 is characterized in that each light-emitting diode component can emission wavelength be 470,505,620,730,840 and 940 millimicrons a light.
3. scanner equipment as claimed in claim 1, reflecting surface has stipulated to specify the light reflection recess surface of a plurality of smooth reflection recess in the middle of it is characterized in that, wherein each light reflection recess and end reflections surface are separately, direction towards the end reflections surface is provided with them, and with respect to the surperficial size of setting the light reflection recess of end reflections, so that receive reflected light from the end reflections surface, and between the end reflections surface, concentrate this light.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US64121600A | 2000-08-18 | 2000-08-18 | |
| US09/641,216 | 2000-08-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1447952A CN1447952A (en) | 2003-10-08 |
| CN100390809C true CN100390809C (en) | 2008-05-28 |
Family
ID=24571434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018142958A Expired - Fee Related CN100390809C (en) | 2000-08-18 | 2001-08-14 | Scanner with waveguide for scanning paper currency |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1317729A4 (en) |
| JP (1) | JP4782357B2 (en) |
| KR (1) | KR100875001B1 (en) |
| CN (1) | CN100390809C (en) |
| AU (1) | AU2001285435A1 (en) |
| CA (1) | CA2419287C (en) |
| TW (1) | TW538384B (en) |
| WO (1) | WO2002017217A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2405322T3 (en) * | 2001-08-06 | 2013-05-30 | Mei, Inc. | Document validator sub-assembly |
| ES2613961T3 (en) | 2007-09-26 | 2017-05-29 | Crane Payment Innovations, Inc. | Document Validator Subset |
| CN103124987B (en) * | 2010-09-22 | 2015-11-25 | 日立欧姆龙金融系统有限公司 | Sheet paper identification device |
| JP6701625B2 (en) * | 2015-05-15 | 2020-05-27 | 富士電機株式会社 | Light guide device for paper sheet identification device |
| US20170309105A1 (en) * | 2016-04-25 | 2017-10-26 | Leadot Innovation, Inc. | Method of Determining Currency and Denomination of an Inserted Bill in a Bill Acceptor Having a Single Slot and Related Device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5992749A (en) * | 1996-03-01 | 1999-11-30 | Asahi Kogaku Kogyo Kabushiki Kaisha | Data symbol reader |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3686079T2 (en) * | 1985-04-08 | 1993-01-07 | Fuji Photo Film Co Ltd | READING OR RECORDING DEVICE USING A LIGHT BEAM SENSOR. |
| CH689523A5 (en) * | 1989-05-01 | 1999-05-31 | Mars Inc | Testing device for a blattfoermiges Good. |
| US5786582A (en) * | 1992-02-27 | 1998-07-28 | Symbol Technologies, Inc. | Optical scanner for reading and decoding one- and two-dimensional symbologies at variable depths of field |
| JPH07306907A (en) * | 1994-05-13 | 1995-11-21 | Asahi Optical Co Ltd | Data symbol reading device |
| US5586212A (en) * | 1994-07-06 | 1996-12-17 | Hewlett-Packard | Optical wave guide for hand-held scanner |
| GB2309299B (en) * | 1996-01-16 | 2000-06-07 | Mars Inc | Sensing device |
| US5923413A (en) * | 1996-11-15 | 1999-07-13 | Interbold | Universal bank note denominator and validator |
| JP4266495B2 (en) * | 2000-06-12 | 2009-05-20 | グローリー株式会社 | Banknote handling machine |
-
2001
- 2001-08-08 TW TW090119400A patent/TW538384B/en not_active IP Right Cessation
- 2001-08-14 EP EP01964597A patent/EP1317729A4/en not_active Withdrawn
- 2001-08-14 CA CA002419287A patent/CA2419287C/en not_active Expired - Fee Related
- 2001-08-14 WO PCT/US2001/041704 patent/WO2002017217A1/en not_active Application Discontinuation
- 2001-08-14 CN CNB018142958A patent/CN100390809C/en not_active Expired - Fee Related
- 2001-08-14 JP JP2002521211A patent/JP4782357B2/en not_active Expired - Fee Related
- 2001-08-14 KR KR1020037002343A patent/KR100875001B1/en not_active IP Right Cessation
- 2001-08-14 AU AU2001285435A patent/AU2001285435A1/en not_active Abandoned
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5992749A (en) * | 1996-03-01 | 1999-11-30 | Asahi Kogaku Kogyo Kabushiki Kaisha | Data symbol reader |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100875001B1 (en) | 2008-12-19 |
| WO2002017217A1 (en) | 2002-02-28 |
| JP4782357B2 (en) | 2011-09-28 |
| KR20030066600A (en) | 2003-08-09 |
| CA2419287A1 (en) | 2002-02-28 |
| CN1447952A (en) | 2003-10-08 |
| JP2004506992A (en) | 2004-03-04 |
| CA2419287C (en) | 2008-12-09 |
| TW538384B (en) | 2003-06-21 |
| EP1317729A1 (en) | 2003-06-11 |
| EP1317729A4 (en) | 2004-12-15 |
| AU2001285435A1 (en) | 2002-03-04 |
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