CN103279729A - Barcode scanner with light masking part - Google Patents
Barcode scanner with light masking part Download PDFInfo
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- CN103279729A CN103279729A CN2013101887450A CN201310188745A CN103279729A CN 103279729 A CN103279729 A CN 103279729A CN 2013101887450 A CN2013101887450 A CN 2013101887450A CN 201310188745 A CN201310188745 A CN 201310188745A CN 103279729 A CN103279729 A CN 103279729A
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- barcode scanner
- light
- leaded light
- shading
- extension
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Abstract
The invention provides a barcode scanner with a light masking part. The barcode scanner comprises a shell, a glass window, and a lens group and a light sensing device which are arranged at the rear of the glass window. An illuminating plate with a plurality of LED (Light Emitting Diode) lamps is arranged around the front of the glass window in a scanning port. A light guide part is further arranged at the front of the illuminating plate. The barcode scanner additionally comprises an annular light masking part. The light masking part is sheathed on the peripheral surface of the light guide part. The light masking part is provided with a light masking extension section which axially extends forwards and exceeds the front end of the light guide part. The axial front end of the light masking extension section is provided with a front end opening. The barcode scanner with the light masking part is suitable for barcode scanning of surfaces made of various materials, the barcode recognition rate is improved and the application scope is widened.
Description
Technical field
The present invention relates to the bar code scan equipment technical field, especially relate to and a kind ofly have the shading part to be applied to the barcode scanner on various material surface.
Background technology
Barcode scanner is called bar-code reader, bar code scan rifle, bar code scanner, barcode scanner and bar code reader again.It is be used to the arrangement for reading that reads information that bar code comprises, and utilizes optical principle, being transferred to computer or other equipment by data line or wireless mode behind the content decoding of bar code.Barcode scanner is widely used in the demand in a plurality of fields such as business POS POS, express delivery, storage, logistics, books, medicine.
In a lot of industrial applications, bar code is not only on the label that is printed on papery, and in some automobiles and electron trade, more and more enterprises is directly made bar code by the mode of laser engraving, spraying, etching even directly casting on parts.Bar code on unlike material or the different surfaces has characteristics such as low contrast or high reflection, has caused new challenge to reading decoding apparatus.
The barcode scanner of prior art can only be identified the typographic bar code of paper labels, and in most of the cases can't be identified smoothly for the bar code of direct engraving, spraying, etching or casting on other material surfaces, and discrimination is very low.Particularly when high reflecting surface (as the high light microscopic face of metal) uses, the light source that scanner sends and surrounding environment light source are directly reflexed on the sensor devices of scanner inside in large quantities, influence the operate as normal of sensor devices, reduced the bar-code identification rate of barcode scanner.
Summary of the invention
In order to overcome the defective of prior art, the purpose of this invention is to provide a kind of bar code that can be applicable to the various material surface and be well on and sweep the barcode scanner of sign indicating number, improve the bar-code identification rate, enlarge the range of application of barcode scanner.
In order to achieve the above object, the invention provides a kind of barcode scanner with shading part, it comprises housing with scanning mouthful, be located at the windowpane in the described scanning mouthful, and lens group and the sensor devices of being located at the windowpane rear, it is characterized in that: in described scanning mouthful, be positioned at the illuminatian plate that is provided with around the place ahead of described windowpane with a plurality of LED lamps; The place ahead at described illuminatian plate also is provided with the leaded light part; Described barcode scanner also comprises the shading part of annular, described shading part is sheathed on the outer surface of described leaded light part, described shading part has the shading extension that extends beyond leaded light part front end vertically forward, and the axial forward end of described shading extension has front opening.
Preferably, the outer surface of the inside surface of described shading part and described leaded light part fits tightly.
Preferably, in the middle of described front opening is vertically in to recessed and both sides, back outstanding shaped form forward vertically.More preferably, described shading part is the white plastic injection mo(u)lding, and its surface is the cloudy surface shape.
Preferably, described shading extension has vertically forward bore by big gradually little converging portion.More preferably, the front end center of described converging portion has rectangular opening.More preferably, described shading part is the injection mo(u)lding of black plastic material, and its surface is the cloudy surface shape.
Preferably, described leaded light part has described a plurality of LED lampshades light-guiding shade portion therein, and described leaded light part also has the illumination extension that extends to the outside of described housing, and described illumination extension is connected with described light-guiding shade portion.
Further, the xsect of described illumination extension is the ring section, and the inwall of described illumination extension is for to face directly with the inboard of axially parallel.
Further, the rear end of described illumination extension has to the inside of described light-guiding shade portion outstanding leaded light post or leaded light ring, and described leaded light post or leaded light ring extend to the surface of described a plurality of LED lamps.
Further, described light-guiding shade portion has vertically inside internal diameter by big gradually little and form the inboard inclined-plane of central opening.
In a kind of barcode scanner with shading part provided by the invention, adopted the shading part to be set on the leaded light part of housing scanning mouth, be radiated on the testee after the diffuse reflection of illuminating ray through the shading part that scanner is sent, and blocking reflected light and ambient light reflex to the sensor devices of scanner inside effectively, reduced the influence of reflected light to sensor devices, improved the quality of shooting module seizure bar code image, improved the bar-code identification rate of barcode scanner, made barcode scanner can be applicable to the bar code scan on various material surface.
Therefore, with respect to prior art, the invention provides and improved the bar-code identification rate, enlarged the range of application of barcode scanner.
Description of drawings
Fig. 1 is the stereographic map of first embodiment of the invention.
Fig. 2 is the front view of first embodiment of the invention.
Fig. 3 is that the A-A of Fig. 2 is to cut-open view.
Fig. 4 is the leaded light part of first embodiment of the invention and first state stereogram of shading part combination.
Fig. 5 is the leaded light part of first embodiment of the invention and second state stereogram of shading part combination.
Fig. 6 is leaded light part and the shading part combination three-dimensional cutaway view of second embodiment of the invention.
Fig. 7 is the leaded light part of second embodiment of the invention and the stereographic map of shading part combination.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiment of the present invention is elaborated.
Embodiment 1
See also Fig. 1 to Fig. 5, present embodiment provides a kind of barcode scanner with shading part, and it comprises housing 10, trigger 20, lens group 30, sensor devices 40, windowpane 50, the illuminatian plate 60 with a plurality of LED lamps 61, leaded light part 70 and shading part 80.The front end of housing 10 has scanning mouth 11, and windowpane 50 stays in the scanning mouth 11 by 51 of flexible glues.Lens group 30 and sensor devices 40 are located at the rear of windowpane 50.Described illuminatian plate 60 is positioned in described scanning mouthful around the place ahead of described windowpane 50, and particularly, illuminatian plate 60 is located at around the place ahead of windowpane 50 for annular shape sleeve-board, a plurality of LED lamps at illuminatian plate 60 upper edges one circumferential hoop around setting at interval.
The place ahead at described illuminatian plate 60 also is provided with leaded light part 70, described leaded light part 70 has described a plurality of LED lamps 61 is covered on wherein light-guiding shade portion 71, described leaded light part 70 also has the illumination extension 72 that extends to the outside of described housing 10, described illumination extension 72 is connected with described light-guiding shade portion 71, and the light source that the front end of described illumination extension 72 has a plurality of different angles penetrates the surface.Leaded light part 70 penetrates the scanning mouth with the guiding of LED lamp source.
Described shading part 80 is sheathed on the outer surface of described illumination extension 72, and described shading part 80 has the shading extension that extends beyond leaded light part 70 front ends vertically forward, and the axial forward end of described shading extension has front opening 810.The outer surface of the inside surface of described shading part 80 and described leaded light part 70 fits tightly.In the present embodiment, recessed and both sides outstanding shaped form forward vertically backward vertically in the middle of described front opening 810 is.The both sides of described front opening 810 are outstanding forward vertically, can block the surround lighting of both sides, reduce reflection of ambient light to the influence of sensor devices 40.Described shading part 80 is the white plastic injection mo(u)lding, and its surface is the cloudy surface shape that mould texture or blasting treatment form.Shading part 80 is removably mounted on the illumination extension 72, and the operator can be selected for use according to the use scene.When using the shading part 80 in the present embodiment, light can carry out light filling to testee by its medial surface reflection or diffuse reflection.
In the present embodiment, the xsect of described illumination extension 72 is the ring section, and the front end edge of the described illumination extension 72 axially outside of mutually described housing 10 extends, and the inwall of described illumination extension 72 is for to face 721 directly with the inboard of axially parallel.The rear end of described illumination extension 72 has to the outstanding leaded light ring 711 in the inside of described light-guiding shade portion 71, and described leaded light ring 711 extends to the surface of described a plurality of LED lamps 61, and light that will described a plurality of LED lamps by leaded light ring 711 guides and enters leaded light part 70.Described leaded light ring also can make a plurality of leaded light posts respectively, and each LED lamp 61 correspondence arranges a leaded light post and is inducted in the leaded light part 70 with the light with the LED lamp.
Internal diameter was by big gradually little and form the inboard inclined-plane 713 of central opening 712 in described light-guiding shade portion 71 had vertically.
The light source of described a plurality of different angles penetrates the surface to have at least and a pair ofly faces 721 inclined-planes 722 that are 30 to 50 degree angles directly with the inboard of described illumination extension 72 respectively.This inclined-plane 722 can refract to the lighting source in the leaded light part axis centre of scanning mouth.
The light source of described a plurality of different angles penetrates the surface and has one at least with the plane of refraction of light source-guide towards medial surface 81 irradiations of described shading part 80.Particularly, described plane of refraction is to be arranged on the front end outward flange of described illumination extension 72 and to form the fillet surface 723 of certain angles with the medial surface 81 of described shading part 80.Medial surface 81 is acute angle with the angle of fillet surface 723.
The package assembly that described leaded light part 70 is formed in one structure or is made from multiple components.
Described leaded light part 70 is transparent PC(polycarbonate) injection molding, its surface is the cloudy surface shape.Wherein, described transparent PC plastics can select to add astigmatic agent according to actual needs.
Embodiment 2
See also Fig. 6 to Fig. 7, the difference of present embodiment and embodiment 1 is: the shading extension of shading part 90 has vertically forward bore by big gradually little converging portion 92, and the front end center of converging portion 92 has rectangular opening 920; Described shading part 90 is the black plastic injection mo(u)lding, and its surface is the cloudy surface shape that mould texture or blasting treatment form.The shading part 90 of black plastic material more is conducive to cover surround lighting.
Owing to adopt technique scheme, the present invention reaches following technique effect: at first, direct projection, refraction and diffuse reflection etc. take place in light in the inside of leaded light part 70, part light through the inboard inclined-plane of leaded light part 70 713 direct irradiations or diffuse reflection to testee; Secondly, since the inboard of leaded light part 70 face directly 721 and 713 surfaces, inboard inclined-plane all be the cloudy surface shape, part light through fillet surface 723 direct projections of leaded light part 70 or diffuse reflection to the medial surface of shading part, again by the medial surface reflection of shading part or diffuse reflection to testee; Again, part light again through inclined-plane 722 refractions of leaded light part 70 front ends or diffuse reflection to testee.Therefore, the light that shines on the final testee is to be formed by a plurality of different angles light blendings, is more suitable for obtaining bar code image in lens group 30 and sensor devices 40.
In the above-described embodiments, the shading part can be selected to use according to the different application scene of barcode scanner.
As when being applied to testee surface for dark low reflecting surface, the shading part 80 of first embodiment is used, and the medial surface of shading part 80 can carry out light filling to testee, strengthens illumination, makes easier being read of bar code of testee.
As when being applied to testee surface and using for minute surface high reflecting metal surface, the shading part 90 of second embodiment is used.Shading part 90 can either block most of reflection ray, and the medial surface of shading part 90 forms the cloudy surface shape through mould texture or blasting treatment, illuminating ray shines on the testee through diffuse reflection after shining on the medial surface of shading part 90, reduces lighting source and directly reflexes to sensor devices.
The opening bore of shading part 90 is by greatly gradually little, minute surface reflection or the diffuse light of minimizing testee that can be to a certain degree shine on the sensor devices 40, also farthest block simultaneously surround lighting and reflect into sensor devices through the testee surface, influence sensor devices 40 work.
Use scene at different testees, low-angle illumination must be adopted in some high reflective metal surface, and the low reflecting surface of some dark color may need the combination of the illumination of several angles to reach the needed sensitization condition of camera.At the reflective metal surface of height, the shading part is stop portions reflected light and surround lighting effectively, thereby reduces the influence to sensor devices 40.The invention solves the unlike material different surfaces for the different demand of illumination light feedback, improved the bit rate of reading of barcode scanner, enlarged the range of application of barcode scanner.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this; can not limit protection scope of the present invention with this; all equivalences that spirit essence is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (10)
1. barcode scanner with shading part, it comprises housing with scanning mouthful, be located at the windowpane in the described scanning mouthful, and lens group and the sensor devices of being located at the windowpane rear, it is characterized in that: in described scanning mouthful, be positioned at the illuminatian plate that is provided with around the place ahead of described windowpane with a plurality of LED lamps; The place ahead at described illuminatian plate also is provided with the leaded light part; Described barcode scanner also comprises the shading part of annular, described shading part is sheathed on the outer surface of described leaded light part, described shading part has the shading extension that extends beyond leaded light part front end vertically forward, and the axial forward end of described shading extension has front opening.
2. barcode scanner according to claim 1 is characterized in that: in the middle of described front opening is vertically in to the back recessed and both sides outstanding shaped form forward vertically.
3. barcode scanner according to claim 2, it is characterized in that: described shading part is the white plastic injection mo(u)lding, its surface is the cloudy surface shape.
4. barcode scanner according to claim 1 is characterized in that: described shading extension has vertically forward bore by big gradually little converging portion.
5. barcode scanner according to claim 4, it is characterized in that: the front end center of described converging portion has rectangular opening.
6. barcode scanner according to claim 4, it is characterized in that: described shading part is the injection mo(u)lding of black plastic material, its surface is the cloudy surface shape.
7. according to any described barcode scanner of claim 1-6, it is characterized in that: described leaded light part has described a plurality of LED lampshades light-guiding shade portion therein, described leaded light part also has the illumination extension that extends to the outside of described housing, and described illumination extension is connected with described light-guiding shade portion.
8. barcode scanner according to claim 7, it is characterized in that: the xsect of described illumination extension is the ring section, and the inwall of described illumination extension is for to face directly with the inboard of axially parallel.
9. barcode scanner according to claim 8 is characterized in that: the rear end of described illumination extension has to outstanding leaded light post or the leaded light ring in inside of described light-guiding shade portion, and described leaded light post or leaded light ring extend to the surface of described a plurality of LED lamps.
10. barcode scanner according to claim 7 is characterized in that: described light-guiding shade portion has vertically inside internal diameter by big gradually little and form the inboard inclined-plane of central opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310188745.0A CN103279729B (en) | 2013-05-21 | 2013-05-21 | A kind of barcode scanner with shading part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310188745.0A CN103279729B (en) | 2013-05-21 | 2013-05-21 | A kind of barcode scanner with shading part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103279729A true CN103279729A (en) | 2013-09-04 |
| CN103279729B CN103279729B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310188745.0A Active CN103279729B (en) | 2013-05-21 | 2013-05-21 | A kind of barcode scanner with shading part |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106667438A (en) * | 2016-12-26 | 2017-05-17 | 中电科软件信息服务有限公司 | Traditional Chinese medicine lingual surface instrument |
| CN108506660B (en) * | 2018-03-09 | 2020-03-13 | 深圳市聚力得电子有限公司 | Mobile payment equipment with shading function and high reliability |
| WO2020087900A1 (en) * | 2018-10-31 | 2020-05-07 | 深圳盈达信息科技有限公司 | Scanning device capable of reducing the influence of illumination light reflected by scanning window on code scanning |
| CN113962238A (en) * | 2021-12-06 | 2022-01-21 | 苏州华星光电技术有限公司 | Light supplementing light source and identification code scanning device |
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| CN1213244A (en) * | 1997-09-30 | 1999-04-07 | 富士通株式会社 | Light source module for scanning apparatus and scanning apparatus with light source module |
| CN1267034A (en) * | 1998-12-30 | 2000-09-20 | 讯宝科技公司 | Optic path design for scanning component of small bar code reader |
| CN1426570A (en) * | 2000-03-02 | 2003-06-25 | 物理光学公司 | Scanner utilizing light pipe with diffuser |
| US20040118916A1 (en) * | 2002-12-18 | 2004-06-24 | Duanfeng He | System and method for verifying RFID reads |
| CN203338363U (en) * | 2013-05-21 | 2013-12-11 | 苏州斯普锐智能系统有限公司 | Bar code scanner with shading element |
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2013
- 2013-05-21 CN CN201310188745.0A patent/CN103279729B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1213244A (en) * | 1997-09-30 | 1999-04-07 | 富士通株式会社 | Light source module for scanning apparatus and scanning apparatus with light source module |
| CN1267034A (en) * | 1998-12-30 | 2000-09-20 | 讯宝科技公司 | Optic path design for scanning component of small bar code reader |
| CN1426570A (en) * | 2000-03-02 | 2003-06-25 | 物理光学公司 | Scanner utilizing light pipe with diffuser |
| US20040118916A1 (en) * | 2002-12-18 | 2004-06-24 | Duanfeng He | System and method for verifying RFID reads |
| CN203338363U (en) * | 2013-05-21 | 2013-12-11 | 苏州斯普锐智能系统有限公司 | Bar code scanner with shading element |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106667438A (en) * | 2016-12-26 | 2017-05-17 | 中电科软件信息服务有限公司 | Traditional Chinese medicine lingual surface instrument |
| CN108506660B (en) * | 2018-03-09 | 2020-03-13 | 深圳市聚力得电子有限公司 | Mobile payment equipment with shading function and high reliability |
| WO2020087900A1 (en) * | 2018-10-31 | 2020-05-07 | 深圳盈达信息科技有限公司 | Scanning device capable of reducing the influence of illumination light reflected by scanning window on code scanning |
| CN113962238A (en) * | 2021-12-06 | 2022-01-21 | 苏州华星光电技术有限公司 | Light supplementing light source and identification code scanning device |
| CN113962238B (en) * | 2021-12-06 | 2023-11-28 | 苏州华星光电技术有限公司 | Light supplementing light source and identification code scanning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103279729B (en) | 2016-01-20 |
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