CN104463069B - Portable terminal with dual laser scanning device - Google Patents
Portable terminal with dual laser scanning device Download PDFInfo
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- CN104463069B CN104463069B CN201410755806.1A CN201410755806A CN104463069B CN 104463069 B CN104463069 B CN 104463069B CN 201410755806 A CN201410755806 A CN 201410755806A CN 104463069 B CN104463069 B CN 104463069B
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- scanning device
- laser scanning
- portable terminal
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Abstract
The invention discloses a kind of portable terminal with dual laser scanning device, including starting the input equipment of laser scanning function and the display device of display recognition result, also include being arranged on dual laser scanning device on the portable terminal, the portable terminal with dual laser scanning device of the invention can be such that device scan speed rises to twice of original Laser Scanning Equipment, and decoding unit has part covering mutually to two-way scan line electric signal on the decoding time, greatly save the decoding time, decoding speed is improved, Consumer's Experience is improved.
Description
Technical field
Field, more particularly to a kind of portable terminal with dual laser scanning device are recognized the present invention relates to bar code.
Background technology
Bar code scan equipment is a kind of equipment for reading the information that bar code is included.It recognizes accurate, data input
Speed is fast, and equipment is simple, cost is relatively low, and in supermarket, library, warehouse etc., numerous occasions obtain more and more widely using.
Bar code scan equipment can be divided into rainbow optical bar code scanning device (also referred to as CCD scanners) according to light source difference and laser bar code is swept
Retouch equipment.Rainbow optical bar code scanning device is to utilize photoelectric coupling (CCD) principle, bar code printing pattern is imaged, Ran Houzai
Decoding.Its advantage is：Without rotating shaft, motor, service life is long；It is cheap.Laser bar code scanning device is to utilize laser two
Pole pipe as light source single-line type scanner, but its sweep speed, scanning distance, scan sensitivity etc. be better than rainbow optical bar code
Scanning device, therefore mainly apply in the market is laser bar code scanning device.
At present, laser bar code scanning device mainly has rotary mirror type and two kinds of mirror of quivering.Rotary mirror type is to use high-speed motor band
Dynamic prism group rotation, makes the single-point laser that diode is sent become being aligned, but the price of rotary mirror type scanning device is too high；Quiver
The cost of manufacture of mirror be less than rotary mirror type, but this principle laser gun be difficult improve sweep speed, generally 33 times/second, most
Height can reach 100 times/second, not reach the requirement of application in some occasions for needing quickly to be scanned.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of portable terminal with dual laser scanning device, not
Substantially on the premise of increase equipment cost and volume, device scan speed can be made to rise to twice of original Laser Scanning Equipment,
And then decoding speed is greatly improved, improve Consumer's Experience.
In order to solve the above technical problems, a kind of portable terminal with dual laser scanning device that the present invention is provided, bag
The display device of the input equipment for starting laser scanning function and display recognition result is included, in addition to is arranged on the portable terminal
Dual laser scanning device on end, the dual laser scanning device includes generating laser, the first outgoing light polarization plate, first
Completely reflecting mirror, first surface mirror condenser, laser deflector, the second completely reflecting mirror, the second outgoing light polarization plate, the second curved surface
Mirror condenser, the first incident polarizer, the first optical-electrical converter, the second incident polarizer, the second optical-electrical converter and decoding
Unit；
Wherein, the generating laser sends the first scan line and the second scan line, and first scan line is by described
Projected after first outgoing light polarization plate, the first completely reflecting mirror, first surface mirror condenser, laser deflector, to being read thing
Body is scanned, and the laser reflected is then passed through behind the laser deflector, the concave surface of first surface mirror condenser successively
Cross the first incident polarizer, the first optical-electrical converter and be sent to decoding unit；Second scan line passes through second outgoing
Project, be scanned to being read object, the laser reflected is then after light polarization plate, the second completely reflecting mirror, laser deflector
Turn successively behind the laser deflector, the concave surface of the second camber reflection condenser by the second incident polarizer, the second photoelectricity
Parallel operation is sent to decoding unit.
It is preferred that, in addition to spectroscope and the 3rd completely reflecting mirror.
It is preferred that, the laser beam that spectroscope is sent with generating laser is in angle of 45 degrees.
It is preferred that, the generating laser is bidifly optical transmitting set or 2 single generating lasers.
It is preferred that, the first outgoing light polarization plate and the second outgoing light polarization plate polarization direction are mutually perpendicular to,
It is preferred that, first incident polarizer and the second incident polarizer respectively with the first outgoing light polarization plate and
Second outgoing light polarization plate polarization direction is identical.
It is preferred that, it is provided with aperture on the first surface mirror condenser and the second camber reflection condenser.
It is preferred that, the aperture is circle.
It is preferred that, the laser deflector is a total reflection wabbler mirror.
It is preferred that, the decoding unit is binary channels decoding unit or two single channel decoding units.
A kind of portable terminal two-way scan line electric signal with dual laser scanning device of the present invention is being read object
There is deviation on the position on surface, device scan speed can be made to rise to, and decode list twice of original Laser Scanning Equipment
Member has part covering mutually to two-way scan line electric signal on the decoding time, greatlys save the decoding time, improves decoding speed,
Improve Consumer's Experience.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description:
Fig. 1 is the structural representation of the portable terminal of the invention with dual laser scanning device；
Fig. 2 is dual laser scanning device structural representation of the present invention；
Fig. 3-Fig. 4 is the first scan line of dual laser scanning device scanning process schematic diagram of the present invention；
Fig. 5 is the first scan line of dual laser scanning device scanning starting position structural representation of the present invention；
Fig. 6 is the scan line of dual laser scanning device first scanning final position structural representation of the present invention；
Fig. 7 is dual laser scanning device scanning process timing diagram of the present invention；
Fig. 8 is dual laser scanning device second embodiment structural representation of the present invention.
Main Reference Numerals explanation：
It is read the dual laser scanning device 200 of object 100
The display device 301 of portable terminal 300
Input equipment 302
The spectroscope 2 of generating laser 1
The completely reflecting mirror 4 of first outgoing light polarization plate 3 first
The laser deflector 6 of first surface mirror condenser 5
The outgoing light polarization plate 8 of 3rd completely reflecting mirror 7 second
The camber reflection condenser 10 of second completely reflecting mirror 9 second
The optical-electrical converter 12 of first incident polarizer 11 first
The optical-electrical converter 14 of second incident polarizer 13 second
The single generating laser 701 of decoding unit 15
Single generating laser 702
Embodiment
For that there can be further description to the purpose of the present invention, feature and effect, accompanying drawing is coordinated to be described in detail as after below.
As shown in figure 1, be the structural representation of portable terminal of the present invention with dual laser scanning device, it is described portable
Formula terminal 300 can be with mobile phone, Handheld bar code recognition terminal etc., including starts the input equipment 302 of laser scanning function and show
Show the display device 301 of recognition result, in addition to the dual laser scanning device 200 being arranged on the portable terminal 300.
As shown in figures 2-6, it is dual laser scanning device 200 of the present invention, including generating laser 1, spectroscope 2, first
Outgoing light polarization plate 3, the first completely reflecting mirror 4, first surface mirror condenser 5, laser deflector 6, the 3rd completely reflecting mirror 7,
Two outgoing light polarization plates 8, the second completely reflecting mirror 9, the second camber reflection condenser 10, the first incident polarizer 11, the first photoelectricity
Converter 12, the second incident polarizer 13, the second optical-electrical converter 14 and decoding unit 15；
Generating laser 1 is used to launch laser, laser outgoing preferably in the form of laser beam, then is all-trans by minute surface
The hot spot that diameter is less than 1mm can be formed after penetrating being read on object；
Spectroscope 2, the laser beam for being sent to generating laser 1 carries out light splitting, and the laser beam is divided into energy phase
When the first scan line and the second scan line；It is preferred that, the laser beam that spectroscope 2 and generating laser 1 are sent in angle of 45 degrees,
Make the first scan line and the second scan line into 90 degree of angle；
First outgoing light polarization plate 3 and the polarization direction of the second outgoing light polarization plate 8 are mutually perpendicular to, the first scan line and second
Scan line respectively by the first outgoing light polarization plate 3 and the second outgoing light polarization plate 8 after, polarization direction is also mutually perpendicular to；
First completely reflecting mirror 4, the 3rd completely reflecting mirror 7 and the second completely reflecting mirror 9 are swept for the first scan line of reflection or second
Retouch line；
Aperture is provided with the camber reflection condenser 10 of first surface mirror condenser 5 and second, the aperture can be circle
Shape, rectangle, rhombus or other shapes；Swept for first by being reflected back through the first completely reflecting mirror 4 and the second completely reflecting mirror 9
Retouch line and the second scan line；The camber reflection condenser 10 of first surface mirror condenser 5 and second has a concave surface, respectively
For by the convergence of rays reflected from laser deflector 6 and being sent to the first optical-electrical converter 12 or the second optical-electrical converter
14；
Laser deflector 6 is read shape on object 100 for the first scan line and second to be scanned into line reflection, and are radiated at
Into hot spot, hot spot moves to form scanning track when laser deflector 6 is swung；And will be read as laser deflector 6 is swung
The laser that diffusing reflection is returned on the surface of object 100 is reflexed in incident polarizer by camber reflection condenser；As shown in Figure 3-4
Schematic diagram is propagated for the first scan line correspondence, when laser deflector 6 is swung and is swept towards first surface mirror condenser 5, first
Retouch line and largely converged and reflected by first surface mirror condenser 5 being read the laser that diffusing reflection is returned on the surface of object 100
To the first incident polarizer 11；Second scan line is similarly；The laser deflector 6 is a total reflection wabbler mirror, and hunting frequency is
30-100 times per second；
First incident polarizer 11 and the second incident polarizer 13 go out with the first outgoing light polarization plate 3 and second respectively
Penetrate that the polarization direction of light polarization plate 8 is identical, i.e. the first incident polarizer 11 is identical with the polarization direction of the first outgoing polarization piece 3,
Two incident polarizers 13 are identical with the polarization direction of the second outgoing polarization piece 8；So as to ensure 12 receptions of the first optical-electrical converter
The optical signal reflected on the scanning track of first scan line formation, is not disturbed by the second scan line scans content, similarly, and second
The optical signal reflected on the scanning track that optical-electrical converter 14 receives the formation of the second scan line, is not scanned interior by the first scan line
The interference of appearance；
First optical-electrical converter 12 and the second optical-electrical converter 14 are respectively used to linear to the first scan line and the second scanning
Into scanning track on the optical signal that reflects carry out opto-electronic conversion and transmit to decoding unit 15 to be decoded.
Decoding unit 15, with two path signal acquisition capacity, receives the first optical-electrical converter 12 and the second photoelectricity respectively
The electric signal that converter 14 is exported；There is skew in position of the hot spot of the first scan line and the second scan line in bar code, therefore
The whole story point time existence time of the scanning track of first scan line and the formation of the second scan line is poor, passes through laser deflector 6
Swing position, produces the initial signal and termination signal of two scanning tracks respectively；Swept as Fig. 5-Fig. 6 show the first scan line
Retouch the corresponding starting in track and termination signal；When laser deflector 6 is from left to right swung it is at an angle with horizontal level when, produce the
Scan line is corresponding from left to right to scan track initial signal, when laser deflector 6 is from left to right swung and horizontal level is into θ
During angle, produce that the first scan line is corresponding from left to right to scan trail termination signal, swings from right to left when laser deflector 6 and
Horizontal level is into θ angle, α angles when, and produce starting and termination signal that the first scan line scans track from right to left respectively, point out
Decoding unit 15 is decoded using the electric signal between whole story point；The corresponding starting of the second scan line and termination can similarly be generated
Signal；The two-way scan line whole story dot position information provided according to laser deflector 6, decoding unit 15 enters to two paths of signals respectively
Row decoding；Described 0 °<θ<90°、0°<α<90°.
The light path process of dual laser scanning device 200 of the present invention is as follows：The laser that the generating laser 1 is sent is through institute
It is the first scan line and the second scan line to state 2 points of spectroscope, first scan line by the first outgoing light polarization plate 3,
Project, be scanned to being read object 100 after first completely reflecting mirror 4, first surface mirror condenser 5, laser deflector 6,
The laser reflected is then incident by first behind the laser deflector 6, the concave surface of first surface mirror condenser 5 successively
Polarizer 11, the first optical-electrical converter 12 are sent to decoding unit 15；Second scan line passes through the 3rd completely reflecting mirror
7th, project, be scanned to being read object 100 after the second outgoing light polarization plate 8, the second completely reflecting mirror 9, laser deflector 6,
The laser reflected then enters behind the laser deflector 6, the concave surface of the second camber reflection condenser 10 by second successively
Penetrate polarizer 13, the second optical-electrical converter 14 and be sent to decoding unit 15.
The generating laser 1 can be single laser reflector；
The decoding unit 15 is binary channels decoding unit or two single channel decoding units.
As shown in fig. 7, for dual laser scanning device timing diagram of the present invention, two-way scan line electric signal is being read object
There is deviation on the position on surface, dual laser scanning device of the present invention can be enable device scan speed is risen to original laser
Twice of scanning device, and decoding unit has part covering mutually to two-way scan line electric signal on the decoding time, significantly
The decoding time is saved, decoding speed is improved, Consumer's Experience is improved.
As shown in figure 8, being dual laser scanning device second embodiment structural representation of the present invention, the present embodiment and first
The difference of embodiment is, the generating laser 1 in first embodiment is changed into two single laser from a single generating laser
Transmitter 701 and 702, and reduce the completely reflecting mirror 7 of spectroscope 2 and the 3rd；Two single generating lasers can also be become as needed
For a bidifly optical transmitting set.
The present invention is described in detail above by specific embodiment, but these not constitute the limit to the present invention
System.Without departing from the principles of the present invention, those skilled in the art can also make many modification and improvement, and these also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of portable terminal with dual laser scanning device, including start input equipment and the display of laser scanning function
Distinguish the display device of result, it is characterised in that：Also include being arranged on dual laser scanning device on the portable terminal, institute
State dual laser scanning device poly- including generating laser, the first outgoing light polarization plate, the first completely reflecting mirror, first surface reflection
Light microscopic, laser deflector, the second completely reflecting mirror, the second outgoing light polarization plate, the second camber reflection condenser, the first incident polarization
Piece, the first optical-electrical converter, the second incident polarizer, the second optical-electrical converter and decoding unit；
Wherein, the generating laser sends the first scan line and the second scan line, and first scan line passes through described first
Project, enter to being read object after outgoing light polarization plate, the first completely reflecting mirror, first surface mirror condenser, laser deflector
Row scanning, the laser reflected is then successively behind the laser deflector, the concave surface of first surface mirror condenser by the
One incident polarizer, the first optical-electrical converter are sent to decoding unit；Second scan line is inclined by second emergent light
Shake injection after piece, the second completely reflecting mirror, laser deflector, be scanned to being read object, the laser reflected is then successively
By the second incident polarizer, the second optical-electrical converter behind the laser deflector, the concave surface of the second camber reflection condenser
It is sent to decoding unit.
2. the portable terminal as claimed in claim 1 with dual laser scanning device, it is characterised in that：Also include spectroscope
And the 3rd completely reflecting mirror.
3. the portable terminal as claimed in claim 2 with dual laser scanning device, it is characterised in that：Spectroscope and laser
The laser beam that transmitter is sent is in angle of 45 degrees.
4. the portable terminal as claimed in claim 1 with dual laser scanning device, it is characterised in that：The Laser emission
Device is bidifly optical transmitting set or 2 single generating lasers.
5. the portable terminal as claimed in claim 1 with dual laser scanning device, it is characterised in that：First outgoing
Light polarization plate and the second outgoing light polarization plate polarization direction are mutually perpendicular to.
6. the portable terminal as claimed in claim 1 with dual laser scanning device, it is characterised in that：Described first is incident
Polarizer and the second incident polarizer respectively with the first outgoing light polarization plate and the second outgoing light polarization plate polarization direction phase
Together.
7. the portable terminal as claimed in claim 1 with dual laser scanning device, it is characterised in that：The first surface
Aperture is provided with mirror condenser and the second camber reflection condenser.
8. the portable terminal as claimed in claim 7 with dual laser scanning device, it is characterised in that：The aperture is circle
Shape.
9. the portable terminal as claimed in claim 1 with dual laser scanning device, it is characterised in that：The laser deflection
Device is a total reflection wabbler mirror.
10. the portable terminal as claimed in claim 1 with dual laser scanning device, it is characterised in that：The decoding is single
Member is binary channels decoding unit or two single channel decoding units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410755806.1A CN104463069B (en) | 2014-12-10 | 2014-12-10 | Portable terminal with dual laser scanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410755806.1A CN104463069B (en) | 2014-12-10 | 2014-12-10 | Portable terminal with dual laser scanning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104463069A CN104463069A (en) | 2015-03-25 |
| CN104463069B true CN104463069B (en) | 2017-09-12 |
Family
ID=52909086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410755806.1A Active CN104463069B (en) | 2014-12-10 | 2014-12-10 | Portable terminal with dual laser scanning device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104463069B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106599969B (en) * | 2016-12-31 | 2019-08-20 | 新论(上海)实业有限公司 | High-efficiency strip-shaped code and its scanning means |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1209892A (en) * | 1995-12-18 | 1999-03-03 | 计量器具公司 | Holographic laser scanning system, and process and apparatus and methods for designing and constructing same |
| US5900619A (en) * | 1995-07-26 | 1999-05-04 | Sony Corporation | Optical device comprising a photodetector for detecting light scattered outside a diffraction limit of an objective lens |
| 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 |
| CN201955798U (en) * | 2011-02-28 | 2011-08-31 | 西安富立叶微电子有限责任公司 | Laser barcode scanning and reading device |
| CN204288241U (en) * | 2014-12-10 | 2015-04-22 | 福建新大陆电脑股份有限公司 | With the portable terminal of dual laser scanning device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8038066B2 (en) * | 2009-04-29 | 2011-10-18 | Hand Held Products, Inc. | Laser scanner with deformable lens |
-
2014
- 2014-12-10 CN CN201410755806.1A patent/CN104463069B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5900619A (en) * | 1995-07-26 | 1999-05-04 | Sony Corporation | Optical device comprising a photodetector for detecting light scattered outside a diffraction limit of an objective lens |
| CN1209892A (en) * | 1995-12-18 | 1999-03-03 | 计量器具公司 | Holographic laser scanning system, and process and apparatus and methods for designing and constructing same |
| 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 |
| CN201955798U (en) * | 2011-02-28 | 2011-08-31 | 西安富立叶微电子有限责任公司 | Laser barcode scanning and reading device |
| CN204288241U (en) * | 2014-12-10 | 2015-04-22 | 福建新大陆电脑股份有限公司 | With the portable terminal of dual laser scanning device |
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| Publication number | Publication date |
|---|---|
| CN104463069A (en) | 2015-03-25 |
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Address after: 350015 No. 1 Rujiangxi Road, Mawei District, Fuzhou City, Fujian Province Patentee after: New Continent Digital Technology Co., Ltd. Address before: 350015 No. 1 Rujiangxi Road, Mawei District, Fuzhou City, Fujian Province Patentee before: Fujian Newland Computer Co., Ltd. |