CN1691048A - Dynamic scan structure of bar code reader - Google Patents
Dynamic scan structure of bar code reader Download PDFInfo
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- CN1691048A CN1691048A CN 200410031083 CN200410031083A CN1691048A CN 1691048 A CN1691048 A CN 1691048A CN 200410031083 CN200410031083 CN 200410031083 CN 200410031083 A CN200410031083 A CN 200410031083A CN 1691048 A CN1691048 A CN 1691048A
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- turn
- bar code
- catoptron
- dynamic scan
- reading
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Abstract
A dynamic scanning structure for bar code read device comprises a rotational reflector with back used for axis pole as rotation center, verge towards the position of a bar code waiting for scanning; an angle control device used to drive the reflector to rotate with a predetermined angle range round the axis pole, to make the reflector project a dynamic scanning laser beam to bar code waiting for scanning; a focusing lens is configured on adjacent position of reflector to receive and focus the laser beam past the reflector, then be received by a photosensitive device.
Description
Technical field
The present invention is about a kind of structural design of apparatus for reading of bar code, particularly about a kind of dynamic scan structure of apparatus for reading of bar code.
Background technology
Looking into bar code reading device has been widely used in the various fields at present.For example all oneself generally adopts bar code reading device as electronic assistance aids in occasions such as department store, supermarket, commodity sales field, handling of goods and materials, by assisting of this bar code reading device, make the staff can be rapidly and read price and other product information of every product efficiently, the calculation process of coupled computer again, and can reach the demand of saving manpower, promoting work efficiency, automatic management.
Various structure type design is arranged in the barcode reading technology.In order to project the shoot laser light beam of a dynamic scan, in existing patented technology, many relevant technology are also arranged to a bar code to be scanned.For example in No. the 422375th, Taiwan patent of invention Announcement Number, it has disclosed a kind of optical devices of functionality of laser bar code reader, and its structure mainly includes a LASER Light Source, in order to launch laser beam along a beam axis; One curved reflector, this curved reflector drives its vibration with a drive device before being located at this LASER Light Source, be provided with a prism corresponding to the beam axis place, this laser beam of this prismatic refraction drives prism when making it work as the vibration of this curved reflector simultaneously and the direct of travel that changes laser beam forms one section straight line luminous point and carries out dynamic scan one bar code, and the folded light beam that scans this bar code is collected directive one optical inductor through this curved reflector and responded to this bar code image.This curved reflector utilizes a retracing spring to keep the balance of its vibration.And this drive device includes one group of coil, by the direction of current of its energising of electronic circuit control, makes these coils produce magnetic field; One group of magnet is divided into this curved reflector with respect to this coil place, in order to these coil electricities after the magnetic field of Cheng Sheng produce reciprocation and then control this curved reflector vibration.
Yet, in the prior art of various known bar codes readers, though can both reach the function that projects the dynamic scan laser beam, but the partial structure design is comparatively complicated, and the certain structures design is also having its shortcoming aspect assembling, the durability, and in the other technology, its employed spare part cost is higher.For example in No. the 422375th, aforementioned patent of invention Announcement Number in the structural design of disclosed functionality of laser bar code reader optical devices, it need use a curved reflector and set a prism, and this curved reflector utilizes a retracing spring to keep the balance of its vibration.And, drive prism simultaneously when making it work as this curved reflector vibration and the direct of travel that changes laser beam forms one section straight line luminous point and dynamically scans bar code by this prismatic refraction laser beam in when operation.And the folded light beam that scans this bar code also should bar code image through this curved reflector collection directive one optical inductor prestige.The design of this existing patent structure has promptly existed complex structure, difficult, not good, the spare part cost problem of higher of durability of structure assembling.Moreover owing to need adopt curved reflector in this prior art, the curved surface of its catoptron must accurately can get a desired effect.
Summary of the invention
Fundamental purpose of the present invention promptly provides a kind of dynamic scan structure of apparatus for reading of bar code, and its need can reach the function that produces the dynamic scan laser beam with easy member configuration.
Another object of the present invention provides a kind of simple structure and control is easy to apparatus for reading of bar code dynamic scan structure, its design of forming member and light path path is all comparatively simplified, so make the overall dimensions of this apparatus for reading of bar code can give miniaturization, and also comparatively simple and easy aspect the product assembling.
The present invention is in an apparatus for reading of bar code for solving the technological means that prior art problems adopted, but dispose a turn catoptron, it is obliquely corresponding to the position of a bar code to be scanned, but the back side that should turn catoptron can a jack-post as the turn center and turn.But a turn mirror angle control gear, but in order to drive should turn catoptron be turn center and turn one predetermined angular range with this jack-post, but so that should get the shoot laser light beam that scanning bar code projects a dynamic scan to this by turn catoptron.One focus lamp, but be configured in the close position of this turn catoptron so that projection to the laser beam of this bar code to be scanned through after should bar code reflection to be scanned, focus on mirror to receive and focusing by this, received by a Photoinduction device again.
By the technology used in the present invention means, can be so that the present invention only needs can reach the function that produces the dynamic scan laser beam with easy member configuration, when commercialization, the overall dimensions of its apparatus for reading of bar code can give miniaturization, be suitable for and be applied to different fields, and also comparatively simple and easy aspect the product assembling.
Description of drawings
Fig. 1 is the vertical view of the associated components configuration of the dynamic scan structure of demonstration preferred embodiment apparatus for reading of bar code of the present invention;
Fig. 2 can produce the synoptic diagram of the outgoing laser beam projection of a dynamic scan to a bar code to be scanned for the dynamic scan structure that shows apparatus for reading of bar code of the present invention;
Fig. 3 is the stereographic map of the dynamic scan structure of demonstration preferred embodiment apparatus for reading of bar code of the present invention;
Fig. 4 is the three-dimensional exploded view when each associated components separates in the displayed map 3;
But but Fig. 5 is the rear perspective view of the turn catoptron among demonstration the present invention with each associated components configuration relation of turn mirror angle control gear;
Fig. 6 is for showing the action synoptic diagram among the present invention.
Symbol description
100 apparatus for reading of bar code, 1 housing, 11 base plates
2 LASER Light Source, 21 first catoptrons, 22 second catoptrons
But 3 turn catoptrons, 31 fit portions, 32 jack-posts
But 4 bar code 5 turn mirror angle control gears to be scanned
51 first electromagnetic assemblies, 52 second electromagnetic assemblies, 53 drive plates
53 free ends, 532 stiff ends, 54 sense magnetic members
55 first clipping axles, 56 second clipping axles, 6 focus lamps
7 Photoinduction devices
Embodiment
Consult shown in Figure 1, it shows the vertical view that the associated components of the dynamic scan structure of preferred embodiment apparatus for reading of bar code of the present invention disposes, Fig. 2 shows that apparatus for reading of bar code of the present invention can produce the synoptic diagram of the outgoing laser beam projection of a dynamic scan to a bar code to be scanned, and Fig. 3 is for showing the stereographic map of preferred embodiment apparatus for reading of bar code of the present invention.As shown in the figure, the preferable apparatus for reading of bar code 100 of the present invention disposes a LASER Light Source 2 in base plate 11 appropriate positions of a housing 1, can be in order to produce a laser beam L.Arranged one first catoptron 21, one second catoptron 22 in the projection light path path of this laser beam L, so that the laser beam L that this LASER Light Source 2 is produced is able to via after the excessive reflection, but projection is to a turn catoptron 3.
But should turn catoptron 3 obliquely corresponding to the position of a bar code 4 to be scanned.But the back side of being somebody's turn to do turn catoptron 3 forms a jack-post structure, but this jack-post structure includes a fit portion 31 and a jack-post 32 that is formed on these turn catoptron 3 back sides to be formed, but so should turn catoptron 3 can be subjected to operation control as the turn center and turn by this jack-post 32, with the shoot laser light beam projection that produces a dynamic scan to bar code 4 to be scanned (consulting shown in Figure 2).
Consult Fig. 3, Fig. 4 and shown in Figure 5 simultaneously, but but its suitable distance in the back side that is presented at turn catoptron 3 disposes a turn mirror angle control gear 5, it includes two corresponding mutually first electromagnetic assembly 51 and one second electromagnetic assemblies 52, and disposes a drive plate 53 between this is to electromagnetic assembly 51,52.This drive plate 53 has a free end 531 and a stiff end 532, and wherein this free end 531 extends between this is to electromagnetic assembly 51,52, and at this free end 531 places configuration one sense magnetic member 54.And but the stiff end 532 of this drive plate 53 is fixed on fit portion 31 places at these turn catoptron 3 back sides.
Between the free end 531 of this drive plate 53, more dispose the first clipping axle 55 and one second clipping axle 56.By this first clipping axle 55 and the second clipping axle 56, can reach clipping and locate the function of terminal part of the free end 531 of this drive plate 53, but still can make free end 531 free slippage between the first clipping axle 55 and the second clipping axle 56 of this drive plate 53.
Be subjected to respectively when this first electromagnetic assembly 51 and one second electromagnetic assembly 52 control signal driving after, can produce electromagnetic force respectively, and the electromagnetic force that both produced just changes for mutual, when this mutual electromagnetic force that changes acts on this sense magnetic member 54, to make drive plate 53 produce oscillatory forces (consulting shown in Figure 6), but and can be, but and make that turn catoptron 3 is turn center and in a predetermined angular range turn with jack-post 32 via the conduction of the fit portion 31 at turn catoptron 3 back sides.But be somebody's turn to do the result of turn catoptron 3 turns, the shoot laser light beam L ' projection that can produce a dynamic scan is to bar code 4 to be scanned.
When apparatus for reading of bar code 100 of the present invention produces the outgoing laser beam L ' projection of dynamic scan after bar code 4 to be scanned, but get the folded light beam that scanning barcode 4 reflected by this and can be received and reflex to a focus lamp 6, so that this folded light beam is focused on by this turn catoptron 3.Can throw to a Photoinduction device 7 through the folded light beam after focusing on, deliver to a control circuit (not shown) and carry out the interpretation of bar code data and can light signal be converted to corresponding electric signal by this Photoinduction device 7.
Claims (10)
1, a kind of dynamic scan structure of bar-code reading device is characterized in that, includes:
One LASER Light Source is used to produce a laser beam;
One rotatable mirror, oblique position corresponding to a bar code to be scanned, but the back side that should turn catoptron can a jack-post as the turn center and turn, with laser beam projection that this LASER Light Source was produced on this bar code to be scanned;
But a turn mirror angle control gear, but in order to drive should turn catoptron be turn center and turn one predetermined angular range with this jack-post, but so that should turn catoptron project the shoot laser light beam of a dynamic scan to this bar code to be scanned;
One focus lamp, but be configured in the close position of this turn catoptron so that projection to the laser beam of this bar code to be scanned through after should bar code reflection to be scanned, focus on mirror to receive and focusing by this;
One Photoinduction device is configured in the close position of this focus lamp, in order to receiving the folded light beam after this focus lamp focuses on, and light signal is converted to corresponding electric signal.
2, the dynamic scan structure of apparatus for reading of bar code as claimed in claim 1 is characterized in that, but should include by turn mirror angle control gear:
One first electromagnetic assembly;
One second electromagnetic assembly disposes accordingly with first electromagnetic component;
One drive plate, it has a free end and a stiff end, and this free end extends between these two electromagnetic assemblies, but stiff end then is positioned at the fit portion of this turn combination in this jack-post;
One feels the magnetic member, is configured in the free end of this drive plate, and just between two electromagnetic components;
When this first and second electromagnetic assembly produces the mutual magnetoelectricity power that changes in the free-ended sense magnetic of this drive plate member, but with the jack-post that makes this drive plate with this turn catoptron is turn center and in a predetermined angular range turn, but and then drive should the turn of turn catoptron.
3, the dynamic scan structure of bar-code reading device as claimed in claim 2 is characterized in that, more includes one first clipping axle and one second clipping axle, respectively the free-ended terminal part of this drive plate of clipping.
4, the dynamic scan structure of apparatus for reading of bar code as claimed in claim 2 is characterized in that, this drive plate is made with the pliability material.
5, the dynamic scan structure of apparatus for reading of bar code as claimed in claim 1, it is characterized in that, but but more include at least one catoptron in order to the laser beam that this LASER Light Source produced is reflexed to this turn catoptron in the light path path of this LASER Light Source and turn catoptron.
6, a kind of dynamic scan structure of apparatus for reading of bar code in order to produce shoot laser light beam to a bar code to be scanned of a dynamic scan, is characterized in that, includes in this dynamic scan structure:
But a turn catoptron, obliquely corresponding to the position of a bar code to be scanned, but the back side that should turn catoptron can a jack-post as the turn center and turn, with laser beam projection that a LASER Light Source is produced on this bar code to be scanned;
But a turn mirror angle control gear, but in order to drive should turn catoptron be turn center and turn one predetermined angular range with this jack-post, but so that should turn catoptron project the shoot laser light beam of dynamic scan to this bar code to be scanned.
7, the dynamic scan structure of apparatus for reading of bar code as claimed in claim 6 is characterized in that, but should include by turn mirror angle control gear:
One first electromagnetic assembly;
One second electromagnetic assembly disposes accordingly with first electromagnetic assembly;
One drive plate, it has a free end and a stiff end, and this free end extends between these two electromagnetic assemblies, but stiff end then is positioned at the fit portion of this turn combination in this jack-post;
One feels the magnetic member, is configured in the free end of this drive plate, and just between two electromagnetic components;
When this first and second electromagnetic assembly produces the mutual magnetoelectricity power that changes in the free-ended sense magnetic of this drive plate member, but with the jack-post that makes this drive plate with this turn catoptron is turn center and in a predetermined angular range turn, but and then drive should the turn of turn catoptron.
8, the dynamic scan structure of apparatus for reading of bar code as claimed in claim 7 is characterized in that, more includes one first clipping axle and one second clipping axle, respectively the free-ended terminal part of this drive plate of clipping.
9, the dynamic scan structure of apparatus for reading of bar code as claimed in claim 7 is characterized in that, this drive plate is made with the pliability material.
10, the dynamic scan structure of apparatus for reading of bar code as claimed in claim 7, it is characterized in that, but but more include at least one catoptron in order to the laser beam that this LASER Light Source produced is reflexed to this turn catoptron in the light path path of this laser and turn catoptron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100310837A CN100447803C (en) | 2004-04-20 | 2004-04-20 | Dynamic scan structure of bar code reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100310837A CN100447803C (en) | 2004-04-20 | 2004-04-20 | Dynamic scan structure of bar code reader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1691048A true CN1691048A (en) | 2005-11-02 |
| CN100447803C CN100447803C (en) | 2008-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100310837A Expired - Fee Related CN100447803C (en) | 2004-04-20 | 2004-04-20 | Dynamic scan structure of bar code reader |
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| Country | Link |
|---|---|
| CN (1) | CN100447803C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916357A (en) * | 2010-09-03 | 2010-12-15 | 西安富立叶微电子有限责任公司 | Laser barcode reading device and barcode reading method |
| CN101470799B (en) * | 2007-12-28 | 2011-09-21 | 茂森科技股份有限公司 | Laser bar code scanner and its execution method |
| CN109564232A (en) * | 2016-08-04 | 2019-04-02 | 豪夫迈·罗氏有限公司 | Laboratory sample distribution system and laboratory automation system |
| CN112859284A (en) * | 2021-01-08 | 2021-05-28 | 中国工程物理研究院机械制造工艺研究所 | Precise adjustment method based on electromagnetic force |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2432635Y (en) * | 2000-06-27 | 2001-05-30 | 钟国明 | Scanner of bar code computer |
| CN2458675Y (en) * | 2000-12-05 | 2001-11-07 | 张玉君 | Bar code apparatus scanner |
| CN2457670Y (en) * | 2000-12-07 | 2001-10-31 | 张玉君 | Scanner |
| CN2461081Y (en) * | 2001-01-17 | 2001-11-21 | 巨普光电(上海)有限公司 | Double-laser light-source bar code scanner |
| TW567339B (en) * | 2001-03-26 | 2003-12-21 | Sony Corp | Barcode reader, mobile mirror for barcode reader, and the manufacturing method thereof |
-
2004
- 2004-04-20 CN CNB2004100310837A patent/CN100447803C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101470799B (en) * | 2007-12-28 | 2011-09-21 | 茂森科技股份有限公司 | Laser bar code scanner and its execution method |
| CN101916357A (en) * | 2010-09-03 | 2010-12-15 | 西安富立叶微电子有限责任公司 | Laser barcode reading device and barcode reading method |
| CN109564232A (en) * | 2016-08-04 | 2019-04-02 | 豪夫迈·罗氏有限公司 | Laboratory sample distribution system and laboratory automation system |
| CN109564232B (en) * | 2016-08-04 | 2022-08-02 | 豪夫迈·罗氏有限公司 | Laboratory sample distribution system and laboratory automation system |
| CN112859284A (en) * | 2021-01-08 | 2021-05-28 | 中国工程物理研究院机械制造工艺研究所 | Precise adjustment method based on electromagnetic force |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100447803C (en) | 2008-12-31 |
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