CN103186759B - Barcode scanner with dynamic multi-angle illuminating system - Google Patents
Barcode scanner with dynamic multi-angle illuminating system Download PDFInfo
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- CN103186759B CN103186759B CN201310134275.XA CN201310134275A CN103186759B CN 103186759 B CN103186759 B CN 103186759B CN 201310134275 A CN201310134275 A CN 201310134275A CN 103186759 B CN103186759 B CN 103186759B
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- lighting lamp
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- barcode scanner
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- extending bore
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Abstract
The invention provides a barcode scanner with a dynamic multi-angle illuminating system, comprising a shell, a glass window, an illuminating module and a photographing module, a photosensitive device and a main board with a central processing unit. The illuminating module comprises a scattering light guidance cover with a central axial through hole, and a plurality of LED (Light-emitting diode) lamps arranged in the scattering light guidance cover, wherein all or some of the LED lamps respectively form a plurality of illuminating lamp groves, the scattering light guidance cover is fixed on the shell, and the glass window and the photographing module are arranged in the shell and located behind the through hole. In comparison with the prior art, the barcode scanner with dynamic multi-angle illuminating system, provided by the invention, provides scattered and soft illuminating light, and can be used for barcode scanning on the surfaces of various different materials, thus, the barcode identification rate is improved and the application range of the barcode scanner is expanded.
Description
Technical field
The present invention relates to bar code scan equipment technical field, especially relate to a kind of barcode scanner with dynamic multi-angle illuminator.
Background technology
Barcode scanner, is also called bar-code reader, bar code scan rifle, bar code scanner, barcode scanner and bar code reader.It is for bar code reading comprise the arrangement for reading of information, utilize optical principle, be transferred to computer or other equipment after the content decoding of bar code by data line or wireless mode.Barcode scanner is widely used in the demand in multiple fields such as business POS POS, express delivery, storage, logistics, books, medicine.
In a lot of industrial applications, bar code is not only and is printed on the label of papery, and in some automobiles and electron trade, the mode that increasing enterprise is directly even directly cast by laser engraving, spraying, etching on parts makes bar code.Bar code on unlike material or different surfaces has the feature such as low contrast or high reverse--bias, causes new challenge to code reading device.
Refer to Fig. 1, it illustrates a kind of barcode scanner of prior art, and it comprises shell 1, trigger 2, button 3, windowpane 4, illumination module 5, camera module 6, pilot lamp 7, hummer 8, mainboard 9, data and power interface 10, sensor devices 11.When adopting the black bar code that this kind of barcode scanner scanning paper labels is printed, due to bar code and the high-contrast of label and the feature of low reflection, by the light source that the LED of illumination module 5 sends, camera module 6 and sensor devices 11 can obtain the image of bar code smoothly, and then can barcode scanning smoothly.But for the bar code of direct engraving on such as metal parts, because metal surface and bar code have low contrast and high reverse--bias feature, the light source that the LED being arranged on windowpane 4 illumination module 5 below sends directly is radiated in bar code through windowpane 4, light-source brightness is higher and more concentrated, according to the quality becoming a large amount of reflected light to return to have impact on the bar code image that camera module 6 and sensor devices 11 obtain, therefore more difficult bar code to be decoded.
Therefore, the barcode scanner of prior art can only identify the typographic bar code of paper labels, and the bar code of direct engraving on other material surfaces, spraying, etching or casting in most of the cases cannot be identified smoothly, discrimination is very low.
Summary of the invention
In order to overcome the defect of prior art, the object of this invention is to provide a kind of bar code that can be applicable to various material surface and to be well on the bar code scan equipment of barcode scanning, improving bar-code identification rate, expand the range of application of bar code scan equipment.
In order to achieve the above object, the invention provides a kind of barcode scanner with dynamic multi-angle illuminator, it comprises shell, windowpane, illumination module and camera module, sensor devices and the mainboard with central processing unit, it is characterized in that: described illumination module comprises the scattering light-conducting cover that middle part has axially extending bore and the multiple LED be arranged in described scattering light-conducting cover, the all or part of of described multiple LED forms multiple lighting lamp group respectively, described scattering light-conducting cover is fixing on the housing, described windowpane and described camera module to be arranged in described shell and to be positioned at the rear of described through hole.
Preferably, described multiple LED is arranged in described scattering light-conducting cover according to different irradiating angles.
Preferably, described axially extending bore front portion has bore by little gradually large opening.
Preferably, described multiple lighting lamp group comprises the first lighting lamp group of the multiple LED composition at the rear being circumferentially disposed on described scattering light-conducting cover, and the light source irradiation direction of described first lighting lamp group is arranged forward along the centerline axis parallel of described axially extending bore.More preferably, described first lighting lamp group comprises the lighting lamp group be made up of upper and lower symmetrically arranged LED respectively and the lighting lamp group be made up of the LED be symmetrical set.
Preferably, described multiple lighting lamp group comprises the second lighting lamp group of the oblique spaced multiple LED compositions along described opening inner side.More preferably, the light source irradiation direction of described second lighting lamp group is arranged forward along the centerline axis parallel of described axially extending bore.More preferably, along being same acute angle with the angle of the central axis of described axially extending bore, direction be arranged in parallel in the light source irradiation direction of described second lighting lamp group.
Preferably, described multiple lighting lamp group comprises the 3rd lighting lamp group of multiple LED compositions of the longitudinal separation setting along the central axis being parallel to described axially extending bore, and the light source irradiation direction of described 3rd lighting lamp group is radially arranged towards the axial line of described axially extending bore.
Provided by the invention have in the barcode scanner of dynamic multi-angle illuminator, after have employed scattering light-conducting cover, the high brightness that LED etc. send, comparatively concentrated light source are through the scattering process of scattering light-conducting cover, light becomes soft, be radiated on the surface of low contrast and high reverse--bias, the light being directly back to camera module reduces, and improves the quality that camera module catches bar code image, improves bar-code identification rate.Further, the multiple LED arranged according to different irradiating angle can form multiple lighting lamp group, thus form dynamic multi-angle illuminator, when scanning barcode, wherein one group or many group lighting lamp group can be selected as required to open illumination, to tackle the illumination needs of scanning various material bar code on the surface.
Therefore, relative to prior art, the invention provides and improve bar-code identification rate, expand the range of application of barcode scanner.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of a kind of barcode scanner of prior art.
Fig. 2 is the volume rendering schematic diagram of the scattering light-conducting cover of barcode scanner of the present invention.
Fig. 3 is the schematic diagram of upper and lower symmetrically arranged lighting lamp group in the first lighting lamp group of barcode scanner of the present invention.
Fig. 4 is the schematic diagram of the lighting lamp group be symmetrical set in the first lighting lamp group of barcode scanner of the present invention.
Fig. 5 is the schematic diagram of the lighting lamp group be arranged in parallel in the second lighting lamp group of barcode scanner of the present invention.
Fig. 6 is be the schematic diagram of the lighting lamp group that acute angle is arranged with through-bore axis in the second lighting lamp group of barcode scanner of the present invention.
Fig. 7 is the schematic diagram of the 3rd lighting lamp group of barcode scanner of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiment of the present invention is described in detail.
Refer to Fig. 2 to Fig. 7, the invention provides a kind of barcode scanner with dynamic multi-angle illuminator, it comprises shell, windowpane, illumination module and camera module 6, sensor devices and the mainboard with central processing unit, described illumination module comprises middle part to be had the scattering light-conducting cover 16 of axially extending bore 17 and is arranged on the multiple LED in described scattering light-conducting cover according to different angles, the all or part of of described multiple LED forms multiple lighting lamp group respectively, described scattering light-conducting cover 16 is fixing on the housing, described windowpane and described camera module to be arranged in described shell and to be positioned at the rear of described through hole.In the present embodiment, described axially extending bore 17 front portion has bore by little gradually large opening.Described scattering light-conducting cover 16, described windowpane and described camera module are coaxially arranged.
The first lighting lamp group that multiple LED 201 that described multiple lighting lamp group comprises the rear being circumferentially disposed on described scattering light-conducting cover form, the light source irradiation direction of described first lighting lamp group is arranged forward along the centerline axis parallel of described axially extending bore.
Refer to Fig. 3, it is the vertical rip cutting schematic diagram of the scattering light-conducting cover of barcode scanner of the present invention, and described first lighting lamp group comprises the lighting lamp group be made up of upper and lower symmetrically arranged LED 202.
Refer to Fig. 4, it is the horizontal rip cutting schematic diagram of the scattering light-conducting cover of barcode scanner of the present invention, and described first lighting lamp group also comprises the lighting lamp group be made up of the LED 203 be symmetrical set.
Described multiple lighting lamp group comprises the second lighting lamp group of the oblique spaced multiple LED compositions along described opening inner side.
Refer to Fig. 5, described second lighting lamp group comprises the LED 204 that light source irradiation direction is arranged forward along the centerline axis parallel of described axially extending bore.
Refer to Fig. 6, described second lighting lamp group also comprises light source irradiation direction along the LED 205 be arranged in parallel with the angle of the central axis of described axially extending bore 17 direction that is same acute angle.In the present embodiment, described acute angle is 45° angle.
Refer to Fig. 7, described multiple lighting lamp group also comprises the 3rd lighting lamp group of multiple LED 206 composition of the longitudinal separation setting along the central axis being parallel to described axially extending bore 17, and the light source irradiation direction of described 3rd lighting lamp group is radially arranged towards the axial line of described axially extending bore 17.
When adopting the barcode scanner of the present embodiment to carry out bar code scan, illuminating ray is scattering state, light is soft, described multiple lighting lamp group can according to bar code actual needs, be designed to multiple light illumination mode, formative dynamics multi-angle illumination system, thus adapt to the illumination needs on various material surface, improve bar-code identification rate, expand the range of application of barcode scanner.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and implement according to this; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (6)
1. one kind has the barcode scanner of dynamic multi-angle illuminator, it comprises shell, windowpane, illumination module and camera module, sensor devices and the mainboard with central processing unit, it is characterized in that: described illumination module comprises the scattering light-conducting cover that middle part has axially extending bore and the multiple LED be arranged in described scattering light-conducting cover, the all or part of of described multiple LED forms multiple lighting lamp group respectively, described scattering light-conducting cover is fixing on the housing, described windowpane and described camera module to be arranged in described shell and to be positioned at the rear of described through hole, described axially extending bore front portion has bore by little gradually large opening, described multiple LED is arranged in described scattering light-conducting cover according to different irradiating angles,
Described multiple lighting lamp group comprises the first lighting lamp group of the multiple LED composition at the rear being circumferentially disposed on described scattering light-conducting cover, and the light source irradiation direction of described first lighting lamp group is arranged forward along the centerline axis parallel of described axially extending bore.
2. barcode scanner according to claim 1, is characterized in that: described first lighting lamp group comprises the lighting lamp group be made up of upper and lower symmetrically arranged LED respectively and the lighting lamp group be made up of the LED be symmetrical set.
3. barcode scanner according to claim 2, is characterized in that: described multiple lighting lamp group comprises the second lighting lamp group of the oblique spaced multiple LED compositions along described opening inner side.
4. barcode scanner according to claim 3, is characterized in that: the light source irradiation direction of described second lighting lamp group is arranged forward along the centerline axis parallel of described axially extending bore.
5. barcode scanner according to claim 3, is characterized in that: the direction that edge, light source irradiation direction and the angle of the central axis of described axially extending bore of described second lighting lamp group are same acute angle be arranged in parallel.
6. barcode scanner according to claim 3, it is characterized in that: described multiple lighting lamp group comprises the 3rd lighting lamp group of multiple LED compositions of the longitudinal separation setting along the central axis being parallel to described axially extending bore, and the light source irradiation direction of described 3rd lighting lamp group is radially arranged towards the axial line of described axially extending bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310134275.XA CN103186759B (en) | 2013-04-17 | 2013-04-17 | Barcode scanner with dynamic multi-angle illuminating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310134275.XA CN103186759B (en) | 2013-04-17 | 2013-04-17 | Barcode scanner with dynamic multi-angle illuminating system |
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| CN103186759A CN103186759A (en) | 2013-07-03 |
| CN103186759B true CN103186759B (en) | 2015-07-08 |
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| CN201310134275.XA Active CN103186759B (en) | 2013-04-17 | 2013-04-17 | Barcode scanner with dynamic multi-angle illuminating system |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104680117A (en) * | 2013-11-26 | 2015-06-03 | 英业达科技有限公司 | System and method for detecting image acquisition device arranged on electronic device |
| CN104834884A (en) * | 2015-04-28 | 2015-08-12 | 新石器龙码（北京）科技有限公司 | Barcode scanning device and method |
| CN105022979B (en) * | 2015-07-27 | 2018-01-16 | 深圳市民德电子科技股份有限公司 | Imaging system and the image recognition device that light-supplementing system optical axis is in that angle is set |
| CN105069390A (en) * | 2015-07-27 | 2015-11-18 | 深圳市民德电子科技股份有限公司 | Bar code reader using planar light source for illumination |
| CN105022980B (en) * | 2015-07-28 | 2017-11-14 | 福建新大陆电脑股份有限公司 | A kind of bar code image recognizing apparatus |
| WO2018209580A1 (en) * | 2017-05-17 | 2018-11-22 | Hand Held Products, Inc. | Multi-functional optical illuminators |
| CN107577976B (en) * | 2017-09-18 | 2024-03-08 | 苏州斯普锐智能***股份有限公司 | Light supplementing type fixed code scanner |
| CN107516058B (en) * | 2017-09-18 | 2024-03-08 | 苏州斯普锐智能***股份有限公司 | Low-angle illumination code reader |
| CN108280378B (en) * | 2018-03-14 | 2021-10-15 | 昆山丘钛微电子科技股份有限公司 | Two-dimensional code scanning device and two-dimensional code scanning method |
| CN114065792A (en) * | 2021-11-09 | 2022-02-18 | 东集技术股份有限公司 | Bar code reader and bar code scanning method |
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| CN101320421A (en) * | 2008-07-23 | 2008-12-10 | 凌阳多媒体股份有限公司 | Optical reading head |
| CN203242006U (en) * | 2013-04-17 | 2013-10-16 | 苏州斯普锐智能***有限公司 | Barcode scanner with dynamic and multi-angle lighting system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7398927B2 (en) * | 2005-01-26 | 2008-07-15 | Datalogic Scanning, Inc. | Data reader and methods for imaging targets subject to specular reflection |
| US7857224B2 (en) * | 2006-09-19 | 2010-12-28 | Microscan Systems, Inc. | Devices and/or systems for automatically imaging barcodes |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101320421A (en) * | 2008-07-23 | 2008-12-10 | 凌阳多媒体股份有限公司 | Optical reading head |
| CN203242006U (en) * | 2013-04-17 | 2013-10-16 | 苏州斯普锐智能***有限公司 | Barcode scanner with dynamic and multi-angle lighting system |
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