CN106056024B - Light channel structure and its barcode scanning reading code method - Google Patents
Light channel structure and its barcode scanning reading code method Download PDFInfo
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- CN106056024B CN106056024B CN201610543807.9A CN201610543807A CN106056024B CN 106056024 B CN106056024 B CN 106056024B CN 201610543807 A CN201610543807 A CN 201610543807A CN 106056024 B CN106056024 B CN 106056024B
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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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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/02—Catoptric systems, e.g. image erecting and reversing system
- G02B17/06—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror
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Abstract
The present invention discloses a kind of light channel structure and its barcode scanning reading code method, wherein in light channel structure, the four sides mirror of two groups of incident laser radiations to the rotation；The angle in four faces of the four sides mirror of rotation is different, and reflected light is reflected into the first reflecting element, the second reflecting element respectively；Reflected light is irradiated to bar code by the first reflecting element, the second reflecting element, is formed retrodirective reflection light, is irradiated to the first reflecting element, the second reflecting element；Retrodirective reflection light is reflected into the four sides mirror of rotation by the first reflecting element, the second reflecting element；The four sides mirror of rotation is by reflected light back to first surface mirror, the second curved mirror；Retrodirective reflection light reflection is focused on corresponding first receiving device, the second reception device respectively by first surface mirror, the second curved mirror.Scanning range of the present invention increases, and the reading code ability enhancing of every line, barcode scanning reading code efficiency improves, and can be easy to use with bidirectional operation.
Description
Technical field
The present invention relates to scanning device technical field more particularly to a kind of light channel structure and its barcode scanning reading code methods.
Background technique
Currently, good scanning device is all import in the market, the light channel structure design of domestic scanner can only be into
The scanning of row single line, the range of scanning is also smaller, low efficiency, and use is quite inconvenient.
Summary of the invention
The main object of the present invention is to provide a kind of light channel structure and its barcode scanning reading code method, it is intended to solve sweeping for single line
Retouch small range, low efficiency, problem inconvenient for use.
To achieve the above object, light channel structure proposed by the present invention, for incident laser to be modulated to multi-thread shoot laser
Barcode scanning is carried out,
The light channel structure includes at least: first surface mirror, the second curved mirror, the first reflecting element, the second reflecting element, and first
Reception device, the second reception device, and the four sides mirror of rotation；
First reflecting element, the second reflecting element include four pieces of plane mirrors or five pieces of plane mirrors or six pieces of plane mirrors；
Wherein, two groups of incident lasers are respectively radiated to the four sides mirror of the rotation；
The angle in four faces of the four sides mirror of the rotation is different, and incident laser is reflected into the first reflecting element, the respectively
Two reflecting elements；
Reflected light is irradiated to bar code by first reflecting element, the second reflecting element, forms retrodirective reflection light, is irradiated to described
First reflecting element, the second reflecting element；
Retrodirective reflection light is reflected into the four sides mirror of the rotation by first reflecting element, the second reflecting element；
The four sides mirror of the rotation is by reflected light back to first surface mirror, the second curved mirror；
Retrodirective reflection light reflection is focused on corresponding first respectively and receives dress by the first surface mirror, the second curved mirror
It sets, the second reception device.
Further, which further includes a signal amplification board, first laser head and second laser head, and described first
Reception device and the second reception device are installed on the signal amplification board, and the incident laser is respectively by first laser head and
Dual-laser head projects.
Further, which further includes the first plane mirror and the second plane mirror, and first plane mirror is located at the
The center of one curved mirror, second plane mirror are located at the center of the second curved mirror, and the incident laser is respectively through described first
The four sides mirror of plane mirror or the second plane mirror reflected illumination to the rotation.
Further, the center of the first surface mirror is equipped with the first aperture, and the center of second curved mirror is equipped with the
Two apertures, the incident laser passes through the first aperture or the second aperture is irradiated to the four sides mirror of the rotation.
Further, at least one set of incident laser passes through the first aperture after plane mirror reflects or the second aperture is irradiated to institute
State the four sides mirror of rotation.
Further, first reflecting element, the second reflecting element four pieces of plane mirrors normal direction and the installation pedestal
The angle of the normal direction of bottom plane is followed successively by 42.3 °, 43.8 °, 43.8 °, 42.3 °, adjacent two eyeglass of four pieces of plane mirrors
Normal angle is followed successively by 35.5 °, 33.0 °, 35.5 °；First reflecting element, the second reflecting element five pieces of plane mirrors normal direction with
The angle of the normal direction of the bottom plane of the installation pedestal is followed successively by 42.9 °, 43.8 °, 41.6 °, 43.8 °, 42.9 °, and described five
The normal angle of adjacent two eyeglass of block plane mirror is followed successively by 25.7 °, 26.4 °, 26.4 °, 25.7 °；First reflecting element, second
The angle of the normal direction of the bottom plane of the normal direction and installation pedestal of six pieces of plane mirrors of reflecting element be followed successively by 42.1 °,
43.5 °, 41.4 °, 41.4 °, 43.5 °, 42.1 °, the normal angle of adjacent two eyeglass of six pieces of plane mirrors be followed successively by 22.1 °,
18.0°、16.6°、18.0°、22.1°。
Further, the barcode scanning region that first reflecting element, the second reflecting element reflective light are formed is the net of 32 lines
The grid of the grid or 48 lines of lattice or 40 lines.
The present invention also provides a kind of barcode scanning reading code methods of light channel structure, comprising the following steps:
Incident laser is modulated to the grid of 32 lines or 40 lines or 48 lines by light channel structure；
It is irradiated in bar code using the grid of 32 line or 40 lines or 48 lines and carries out barcode scanning, form retrodirective reflection light；
First receiving device, the second reception device receive the retrodirective reflection light, complete subsequent reads code.
Further, incident laser is modulated to the step of grid of 32 lines or 40 lines or 48 lines, packet by the light channel structure
Include following sub-step:
Two groups of incident lasers are respectively radiated to the four sides mirror of the rotation；
Incident laser is reflected into first reflecting element, the second reflecting element by the four sides mirror of the rotation respectively.
Further, the first receiving device, the second reception device receive the retrodirective reflection light, complete subsequent reads code
The step of, including following sub-step:
First reflecting element, the second reflecting element described in retrodirective reflection light direct beam；
The retrodirective reflection light is reflected into the four sides mirror of the rotation by first reflecting element, the second reflecting element；
The retrodirective reflection light is reflected into first surface mirror, the second curved mirror by the four sides mirror of the rotation；
Retrodirective reflection light reflection is focused on corresponding first respectively and received by the first surface mirror, the second curved mirror
Device, the second reception device.
Light channel structure of the invention will be entered by the four sides mirror by two groups of incident laser radiations to rotation, the four sides mirror of rotation
It penetrates laser and is reflected into the first reflecting element, the second reflecting element respectively, reflected light is irradiated to item by the first reflecting element, the second reflecting element
Code carries out barcode scanning, forms retrodirective reflection light, and another mistake is to being irradiated to the first reflecting element, the second reflecting element, the first reflecting element, second
Retrodirective reflection light is reflected into the four sides mirror of rotation by reflecting element, and retrodirective reflection light is reflected into first surface by the four sides mirror of rotation
Retrodirective reflection light reflection is focused on corresponding first respectively and receives dress by mirror, the second curved mirror, first surface mirror, the second curved mirror
It sets, the second reception device.Light channel structure of the invention will project light and form multi-thread uniform grid, scan model by above-mentioned improvement
Increase, the reading code ability enhancing of every line are enclosed, barcode scanning and reading code efficiency improve, and practical, structure is simple, easy to use.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structure of the first reflecting element of light channel structure of the present invention, the embodiment that the second reflecting element is four pieces of plane mirrors
Schematic diagram；
Fig. 2 is the knot of the first reflecting element of light channel structure of the present invention, another embodiment that the second reflecting element is four pieces of plane mirrors
Structure schematic diagram；
Fig. 3 is the knot of the first reflecting element of light channel structure of the present invention, the another embodiment that the second reflecting element is four pieces of plane mirrors
Structure schematic diagram；
The schematic diagram of the grid for 32 lines that the light channel structure that Fig. 4 is Fig. 1 is formed；
Fig. 5 is the structure of the first reflecting element of light channel structure of the present invention, the embodiment that the second reflecting element is five pieces of plane mirrors
Schematic diagram；
Fig. 6 is the knot of the first reflecting element of light channel structure of the present invention, another embodiment that the second reflecting element is five pieces of plane mirrors
Structure schematic diagram；
Fig. 7 is the knot of the first reflecting element of light channel structure of the present invention, the another embodiment that the second reflecting element is five pieces of plane mirrors
Structure schematic diagram；
The schematic diagram of the grid for 40 lines that the light channel structure that Fig. 8 is Fig. 5 is formed；
Fig. 9 is the structure of the first reflecting element of light channel structure of the present invention, the embodiment that the second reflecting element is six pieces of plane mirrors
Schematic diagram；
Figure 10 is the knot of the first reflecting element of light channel structure of the present invention, another embodiment that the second reflecting element is six pieces of plane mirrors
Structure schematic diagram；
Figure 11 is the knot of the first reflecting element of light channel structure of the present invention, the another embodiment that the second reflecting element is six pieces of plane mirrors
Structure schematic diagram；
The schematic diagram of the grid for 48 lines that the light channel structure that Figure 12 is Fig. 9 is formed；
Figure 13 is the flow chart of one embodiment of barcode scanning reading code method of light channel structure of the present invention；
Figure 14 is the flow chart of step S1 in Figure 13；
The flow chart of step S3 in Figure 15 bitmap 13.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 1 | Installation pedestal | 62 | Second plane mirror |
| 2 | Signal amplification board | 71 | First surface mirror |
| 3 | Rotate four sides mirror | 72 | Second curved mirror |
| 41 | First laser head | 81 | First reflecting element |
| 42 | Second laser head | 82 | Second reflecting element |
| 51 | First receiving device | 91 | First aperture |
| 52 | Second reception device | 92 | Second aperture |
| 61 | First plane mirror |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art under that premise of not paying creative labor it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to
Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can
It to be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occurs
Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model
Within enclosing.
The present invention provides a kind of light channel structure, carries out barcode scanning for incident laser to be modulated to multi-thread shoot laser, it is intended to
Solve the problems, such as the small scanning range of single line, low efficiency, inconvenient for use.
Referring to figs. 1 to 12, in one embodiment of light channel structure of the present invention, which is included at least: first surface mirror
71, the second curved mirror 72, the first plane mirror 61, the second plane mirror 62, the first reflecting element 81, the second reflecting element 82, first receives
Device 51, the second reception device 52, and the four sides mirror 3 of rotation；
First reflecting element 81, the second reflecting element 82 include four pieces of plane mirrors or five pieces of plane mirrors or six pieces of plane mirrors；
Wherein, two groups of incident lasers are respectively radiated to the four sides mirror 3 of rotation；
The angle in four faces of the four sides mirror 3 of rotation is different, and incident laser is reflected into the first reflecting element 81, second respectively
Reflecting element 82；
Reflected light is irradiated to bar code by the first reflecting element 81, the second reflecting element 82, forms retrodirective reflection light, is irradiated to the
One reflecting element 81, the second reflecting element 82；
Retrodirective reflection light is reflected into the four sides mirror 3 of rotation by the first reflecting element 81, the second reflecting element 82；
The four sides mirror 3 of rotation is by reflected light back to first surface mirror 71, the second curved mirror 72；
Retrodirective reflection light reflection is focused on corresponding first receiving device respectively by first surface mirror 71, the second curved mirror 72
51, the second reception device 52.
The light channel structure of the present embodiment is mainly used for for incident laser being modulated to multi-thread shoot laser progress barcode scanning and reading
Code.The four sides mirror 3 of rotation is the optics four sides mirror being fixed on the motor that one at the uniform velocity rotates clockwise or counterclockwise, motor tool
Body is controlled by the control circuit on the signal amplification board that is attached thereto, and the angle in 4 faces of the four sides mirror is different, so
When unidirectional incident laser prolonged exposure, each face of four sides mirror 3 of rotation will generate the anti-of a different reflection directions
Penetrate light；In order to receive the reflection light that the four sides mirror 3 of rotation reflects, light direction is reflected in the four sides mirror 3 of rotation and is provided with the
One reflecting element 81, the second reflecting element 82, the first reflecting element 81, the second reflecting element 82 include four pieces of plane mirrors or five pieces of plane mirrors or
Six pieces of plane mirrors；The plane mirror is arranged successively, and the center of the four sides mirror 3 at the center and rotation of each piece of plane mirror is located at same
In optical path, so that the four sides mirror 3 that each piece of plane mirror of the first reflecting element 81, the second reflecting element 82 can receive rotation reflects
4 different reflection lights of height out, the first reflecting element 81, four pieces of plane mirrors of the second reflecting element 82 or five pieces of plane mirrors or
Six pieces of plane mirror plane mirrors complement each other to form multi-thread reflection light output；First reflecting element 81, the second reflecting element 82 are formed
Reflection light can form retrodirective reflection light on bar code surface when being irradiated in bar code, according to the invertibity of light propagation, retrodirective reflection
Light irradiates back the first reflecting element 81, the second reflecting element 82 again, and only reflected light at this time passes through the absorption and reflection of bar code,
Changed in wavelength and quantitative aspects, the first reflecting element 81, the second reflecting element 82 are generated bar code by optical path reverse
Four sides mirror 3 of the reflected light back to rotation；The four sides mirror 3 of rotation is re-used as a reflecting surface and the retrodirective reflection light is reflected into
The light-ray condensing of the diverging is sent to by one curved mirror 71, the second curved mirror 72, first surface mirror 71, the second curved mirror 72 respectively
Corresponding first receiving device 51, the second reception device 52；First receiving device 51, the second reception device 52 connect a light jointly
The optical signal received can be converted to pulse digit electric signal by electric change-over panel, then by the pulse digital signal by believing
Number amplification board amplifies, then is transferred to signal amplification board and carries out photoelectric conversion, finally reaches terminal, completes reading code.
Light channel structure of the invention by by two groups of incident lasers be respectively radiated to rotation four sides mirror 3, the four sides of rotation
Incident laser is reflected into the first reflecting element 81, the second reflecting element 82 by mirror 3 respectively, and the first reflecting element 81, the second reflecting element 82 will
Reflected light is irradiated to bar code, carries out barcode scanning, forms retrodirective reflection light, and another mistake is to being irradiated to the first reflecting element 81, the second reflecting element
82, retrodirective reflection light is reflected into the four sides mirror 3 of rotation by the first reflecting element 81, the second reflecting element 82, and the four sides mirror 3 of rotation will be inverse
To reflected light back to first surface mirror 71, the second curved mirror 72, first surface mirror 71, the second curved mirror 72 respectively will be inversely anti-
It penetrates light reflection and focuses on corresponding first receiving device 51, the second reception device 52.Light channel structure of the invention is changed by above-mentioned
Into will project light and form multi-thread uniform grid, scanning range increases, the reading code ability enhancing of every line, barcode scanning and reading code effect
Rate improves, and practical, structure is simple, easy to use.
Further, referring to figs. 1 to 12, which further includes a signal amplification board 2, first laser head 41 and second
Laser head 42, first receiving device 51 and the second reception device 52 are installed on signal amplification board 2, and the incident laser is respectively by
One laser head 41 and second laser head 42 project.
The light channel structure of the present embodiment, signal amplification board 2 are made of electronic component, circuit and pcb board, by with mounting bracket
Multiple cylinders support of 1 connection；First receiving device 51 is used to receive the light beam of the focusing of first surface mirror 71, the second reception device
52 for receiving the light beam of the second curved mirror 72 focusing, the optical signal that will be received by the photoelectric conversion plate being attached thereto respectively
Be converted to pulse digit electric signal, then the signal amplification board 2 by connecting with photoelectric conversion plate carries out signal amplification, finally by with
The photoelectric conversion plate that signal enlarged version 2 connects carries out photoelectric conversion, and is transmitted to computer terminal, completes reading code, improves barcode scanning
With the efficiency of reading code；First laser head 41 and second laser head 42 are controlled by circuit control module emits incident laser, and incidence swashs
The wavelength of light is 650nm, and flexible operation is easy to use.
Further, referring to Fig.1 or 5 or 9, which further includes the first plane mirror 61 and the second plane mirror 62, and
One plane mirror 61 is located at the center of first surface mirror 71, and the second plane mirror 62 is located at the center of the second curved mirror 72, the incidence
Laser is respectively through the first plane mirror 61 or 62 reflected illumination of the second plane mirror to the four sides mirror 3 of rotation.
The light channel structure of the present embodiment, the first plane mirror 61, the second plane mirror 62 pass through integrally formed injection molding manner pair
It should be electroplated at the center of first surface mirror 71, the second curved mirror 72, the first plane mirror 61 is fixed on the center of first surface mirror 71,
Second plane mirror 62 is fixed on the center of the second curved mirror 72, and the first plane mirror 61, the second plane mirror 62 are mainly as reflecting surface
Corresponding incident laser is reflected into the four sides mirror 3 of rotation, flexible operation is easy to use.
Further, referring to Fig. 2 or 6 or 10, the center of first surface mirror 71 is equipped with the first aperture 91, the second curved mirror 72
Center be equipped with the second aperture 92, the incident laser passes through the four sides mirror that the first aperture 91 or the second aperture 92 are irradiated to rotation
3。
The center of the light channel structure of the present embodiment, first surface mirror 71 is equipped with the first aperture 91, first laser head 41
It is set on the outside of the curved surface of first surface mirror 71, first laser head 41 is in same with the four sides mirror 3 of the first aperture 91 and rotation
Plane is irradiated on the four sides mirror 3 of rotation so that the incident laser that first laser head 41 issues can pass through the first aperture 91；The
The center of two curved mirrors 72 is equipped with the second aperture 92, and second laser head 42 is set on the outside of the curved surface of the second curved mirror 72,
The four sides mirror 3 of second laser head 42 and the second aperture 92 and rotation is in same plane, so that the sending of second laser head 42 enters
Penetrating laser can be irradiated on the four sides mirror 3 of rotation across the second aperture 92, improve the diversity of light channel structure.
Further, referring to Fig. 3 or 7 or 11, at least one set of incident laser passes through the first aperture 91 after plane mirror reflects
Or second aperture 92 be irradiated to the four sides mirror 3 of rotation.
The light channel structure of the present embodiment, first laser head 41 and second laser head 42 are all set in mounting bracket 1, and two pieces
Plane mirror is separately positioned on the four sides mirror 3 of rotation and the line direction of the first aperture 91 or the second aperture 92, so that first laser
The incident laser of first 41 transmitting can pass through the four sides mirror 3 that the first aperture 91 is irradiated to rotation after plane mirror reflects, and second swashs
The incident laser of 42 transmitting of shaven head can pass through the four sides mirror 3 that the second aperture 92 is irradiated to rotation after plane mirror reflects；Or
The incident laser that first laser head 41 emits is irradiated to the four sides mirror 3 of rotation, second laser head 42 directly through the first aperture 91
The incident laser of transmitting passes through the four sides mirror 3 that the second aperture 92 is irradiated to rotation after plane mirror reflection；Or first swash
The incident lasers of 41 transmitting of shaven head pass through the first aperture 91 after plane mirror reflection and are irradiated to the four sides mirror 3 of rotation, and second
The incident laser that laser head 42 emits shines directly into the four sides mirror 3 of rotation after the reflection of the second plane mirror 62, improves light
The diversity of line structure.
Further, referring to figs. 1 to 12, first plane mirror 61, the second plane mirror 62 four pieces of plane mirrors normal direction
42.3 °, 43.8 °, 43.8 °, 42.3 °, four pieces of plane mirrors are followed successively by with the angle of the normal direction of the bottom plane of installation pedestal 1
The normal angle of adjacent two eyeglass is followed successively by 35.5 °, 33.0 °, 35.5 °.
The light channel structure of the present embodiment, the first reflecting element 81, the second reflecting element 82 include four pieces of plane mirrors, four pieces of planes
Mirror cooperates and has a certain degree configuration with installation pedestal 1.First reflecting element 81, the second reflecting element 82 are set to installation base
On seat 1, four pieces of plane mirrors are fixed in installation pedestal 1 by stickup or clamping mode, the normal direction and installation of four pieces of plane mirrors
The angle of the normal direction of the bottom plane of pedestal 1 is followed successively by 42.3 °, 43.8 °, 43.8 °, 42.3 °, so that the four sides mirror 4 of rotation
The optical centre of each piece of plane mirror of optical centre and four pieces of plane mirrors is in same optical path, to receive the four sides mirror of rotation
4 different reflection lights of 4 height that reflect back；The method phase angle of the eyeglass of the adjacent two pieces of plane mirrors of four pieces of plane mirrors according to
It is secondary be 35.5 °, 33.0 °, 35.5 °, in order to which the first reflecting element 81, each piece of four pieces of plane mirrors of the second reflecting element 82 are reflected
4 reflection lights be combined together, formed a large range of barcode scanning region, be conducive to improve barcode scanning efficiency.
Further, referring to figs. 1 to 12, first plane mirror 61, the second plane mirror 62 five pieces of plane mirrors normal direction
42.9 °, 43.8 °, 41.6 °, 43.8 °, 42.9 ° are followed successively by with the angle of the normal direction of the bottom plane of installation pedestal 1, described five pieces
The normal angle of adjacent two eyeglass of plane mirror is followed successively by 25.7 °, 26.4 °, 26.4 °, 25.7 °.
The light channel structure of the present embodiment, the first reflecting element 81, the second reflecting element 82 include five pieces of plane mirrors, five pieces of plane mirrors
It cooperates and has a certain degree configuration with installation pedestal 1.First reflecting element 81, the second reflecting element 82 are set to installation pedestal
On 1, five pieces of plane mirrors are fixed in installation pedestal 1 by stickup or clamping mode, the normal direction and installation base of five pieces of plane mirrors
The angle of the normal direction of the bottom plane of seat 1 is followed successively by 42.9 °, 43.8 °, 41.6 °, 43.8 °, 42.9 °, so that the four sides mirror of rotation
The optical centre of each piece of plane mirror of 4 optical centre and five pieces of plane mirrors is in same optical path, to receive the four of rotation
4 different reflection lights of the height that face mirror 4 reflects back；The method of the eyeglass of the adjacent two pieces of plane mirrors of five pieces of plane mirrors folds
Angle is followed successively by 25.7 °, 26.4 °, 26.4 °, 25.7 °, in order to which five pieces of plane mirrors of the first reflecting element 81, the second reflecting element 82 are every
One piece of 4 reflection light reflected is combined together, and forms a large range of barcode scanning region, is conducive to improve barcode scanning
Efficiency.
Further, referring to figs. 1 to 12, first plane mirror 61, the second plane mirror 62 six pieces of plane mirrors normal direction
42.1 °, 43.5 °, 41.4 °, 41.4 °, 43.5 °, 42.1 °, institute are followed successively by with the angle of the normal direction of the bottom plane of installation pedestal 1
The normal angle for stating adjacent two eyeglass of six pieces of plane mirrors is followed successively by 22.1 °, 18.0 °, 16.6 °, 18.0 °, 22.1 °.
The light channel structure of the present embodiment, the first reflecting element 81, the second reflecting element 82 include six pieces of plane mirrors, six pieces of planes
Mirror cooperates and has a certain degree configuration with installation pedestal 1.First reflecting element 81, the second reflecting element 82 are set to installation base
On seat 1, six pieces of plane mirrors are fixed in installation pedestal 1 by stickup or clamping mode, the normal direction and installation of six pieces of plane mirrors
The angle of the normal direction of the bottom plane of pedestal 1 is followed successively by 42.1 °, 43.5 °, 41.4 °, 41.4 °, 43.5 °, 42.1 °, so that rotation
The optical centre of four sides mirror 4 and the optical centre of each piece of plane mirror of six pieces of plane mirrors be in same optical path, to receive
4 different reflection lights of the height that the four sides mirror 4 of rotation reflects back；The eyeglass of the adjacent two pieces of plane mirrors of six pieces of plane mirrors
Method phase angle be followed successively by 22.1 °, 18.0 °, 16.6 °, 18.0 °, 22.1 °, in order to the first reflecting element 81, the second reflecting element 82
Each piece of six pieces of plane mirrors 4 reflection lights reflected be combined together, formed a large range of barcode scanning region, have
Conducive to the efficiency for improving barcode scanning.
Further, the barcode scanning formed referring to figs. 1 to 12, first reflecting elements 81,82 reflective light of the second reflecting element
Region is the grid of the grid of 32 lines or the grid of 40 lines or 48 lines.
The light channel structure of the present embodiment, the first reflecting element 81, the second reflecting element 82 are four pieces of plane mirrors, reflective light
The barcode scanning region of formation is the uniform grid of 32 lines, and first laser head 41, the transmitting incident laser of second laser head 42 are flat through first
Face mirror 61, the second plane mirror 62 are reflected into 4 reflected lights of formation, each piece of plane of four pieces of plane mirrors on the four sides mirror 3 of rotation
Mirror reflects 4 groups of reflected lights simultaneously, forms 4 groups of cross one another 4 line reflection light, the first reflecting element 81,82 phase of the second reflecting element
Mutually cooperation, projects the uniform grid that 32 lines are just formed in a plane.
First reflecting element 81, the second reflecting element 82 are five pieces of plane mirrors, and the barcode scanning region that reflective light is formed is 40
The uniform grid of line, first laser head 41, second laser head 42 emit incident laser through the first plane mirror 61, the second plane mirror 62
4 reflected lights of formation on the four sides mirror 3 of rotation are reflected into, each piece of plane mirror of five pieces of plane mirrors reflects 4 groups of reflections simultaneously
Light forms 5 groups of cross one another 4 line reflection light, and the first reflecting element 81, the second reflecting element 82 cooperate, and projects a plane
On just form the uniform grids of 40 lines.
First reflecting element 81, the second reflecting element 82 are six pieces of plane mirrors, and the barcode scanning region that reflective light is formed is 48
The uniform grid of line, first laser head 41, second laser head 42 emit incident laser through the first plane mirror 61, the second plane mirror 62
4 reflected lights of formation on the four sides mirror 3 of rotation are reflected into, each piece of plane mirror of six pieces of plane mirrors reflects 4 groups of reflections simultaneously
Light forms 6 groups of cross one another 4 line reflection light, and the first reflecting element 81, the second reflecting element 82 cooperate, and projects a plane
On just form the uniform grids of 48 lines.
The light channel structure of the present embodiment, 32 lines, 40 lines, 48 lines uniform grid substantially increase scanning range, and
The barcode scanning ability enhancing of every line, 32,40 lines, 48 lines uniform grid only need randomly blocking bar code can complete to sweep
Code work improves the working efficiency of barcode scanning without corresponding corresponding angle and direction.
Referring to figs. 1 to 15, the present invention also provides a kind of barcode scanning of light channel structure and reading code methods, comprising the following steps:
S1: incident laser is modulated to the grid of 32 lines or 40 lines or 48 lines by light channel structure；
S2: being irradiated in bar code using the grid of 32 line or 40 lines or 48 lines and carry out barcode scanning, and retrodirective reflection light is formed；
S3: first receiving device 51, the second reception device 52 receive the retrodirective reflection light, complete subsequent reads code.
In the present embodiment, when carrying out barcode scanning and reading code using the light channel structure, it is necessary first to by first laser head 41, second
The incident laser that laser head 42 projects is modulated to the uniform grid of 32 lines or 40 lines or 48 lines by light channel structure；It then will modulation
The uniform grid of 32 lines or 40 lines or 48 lines that project, which is irradiated in bar code, carries out barcode scanning, due to bar code generally by size it is different
Black lines are attached on a white bottom plate, and black lines have an absorption to laser or infrared-ray etc., and white bottom plate pair
Laser or infrared-ray etc. have reflex, so the uniform grid in 32 lines or 40 lines or 48 lines is radiated in bar code at random
When, bar code can absorb the ray of certain wavelength and be reflected by white bottom plate, form retrodirective reflection light；Finally, by bottom plate
The retrodirective reflection light reflected is mapped to first receiving device 51 through the reverse direction circuit of light channel structure, in the second reception device 52,
First receiving device 51, the second reception device 52 are a kind of photoelectric converter, and the optical signal received is converted to pulse digit
Electric signal is sent to the terminal of connection first receiving device 51, the second reception device 52, completes reading code work.
Incident laser is modulated to the uniform grid of 32 lines or 40 lines or 48 lines, so by the light channel structure of the present embodiment first
It is irradiated in bar code using the uniform grid of 32 lines or 40 lines or 48 lines afterwards and carries out barcode scanning, form retrodirective reflection light, finally by
First receiving device 51, the second reception device 52 receive retrodirective reflection light, complete reading code work, and the range of barcode scanning increases, and every
The reading code ability of line enhances, and is conducive to improve working efficiency, and easy for operation.
Further, referring to figs. 1 to 15, step S1, including following sub-step:
S11: two groups of incident lasers are respectively radiated to the four sides mirror 3 of rotation；
S12: incident laser is reflected into the first reflecting element 81, the second reflecting element 82 by the four sides mirror 3 of rotation respectively.
In the present embodiment, when carrying out barcode scanning and reading code using the light channel structure, incident laser is modulated to 32 by light channel structure
The process of the uniform grid of line or 40 lines or 48 lines specifically includes: firstly, it is necessary to power on, control first laser head 41, the
Dual-laser head 42 is respectively to corresponding first plane mirror 61,62 direct laser of the second plane mirror, the first plane mirror 61, the second plane
Mirror 62 is with the corresponding center for being fixed on first surface mirror 71, the second curved mirror 72 of bonding way, with first laser head 41, the
Dual-laser head 42 is in same plane, and the first plane mirror 61, the second plane mirror 62 receive first laser head 41, second laser head 42
After the incident laser of injection, the four sides mirror 3 of rotation is directly reflexed to；Or control first laser head 41, second laser head
42 directly emit incident laser, and the in the first aperture 91 being then each passed through on first surface mirror 71 or the second curved mirror 72
Two apertures 92 are irradiated to the four sides mirror 3 of rotation；Or control first laser head 41, second laser head 42 emit incident laser, so
In the first aperture 91 being each passed through again after plane mirror reflects respectively on first surface mirror 71 afterwards or the second curved mirror 72
Two apertures 92 are irradiated to the four sides mirror 3 of rotation；The four sides mirror 3 of rotation be one at the uniform velocity counterclockwise or rotate clockwise optics four sides
Mirror is at the uniform velocity rotated by motor realization；The four sides mirror 3 of rotation can be by first laser head 41, second laser head by rotation
The Laser Modulation of the 42 every lines projected and then is transmitted separately to the first reflecting element 81, the second reflecting element at the reflected light of 4 lines
82, and then the uniform grid of 32 lines or 40 lines or 48 lines is formed, in favor of the work of subsequent barcode scanning.
The light channel structure of the present embodiment, by the first reflecting element 81, the second reflecting element 82 formed 32 lines uniform grid or
The uniform grid of the uniform grid of 40 lines or 48 lines increases barcode scanning range, is conducive to improve barcode scanning efficiency, the side of operating with
Just.
Further, referring to figs. 1 to 15, step S3, including following sub-step:
S31: retrodirective reflection light direct beam the first reflecting element 81, the second reflecting element 82；
The retrodirective reflection light is reflected into the four sides mirror 3 of rotation by the S32: the first reflecting element 81, the second reflecting element 82；
S33: the retrodirective reflection light is reflected into first surface mirror 71, the second curved mirror 72 by the four sides mirror 3 of rotation；
S34: retrodirective reflection light reflection is focused on corresponding first respectively by first surface mirror 71, the second curved mirror 72
Reception device 51, the second reception device 52.
The light channel structure of the present embodiment, first receiving device 51, the second reception device 52 receive the retrodirective reflection light into
The detailed process of row barcode scanning includes: when being scanned to bar code, and bar code itself can generate reflected light, which can direct projection the
One reflecting element 81, the second reflecting element 82, i.e., inversely propagate some light that bar code is scanned along original optical path；Retrodirective reflection light
It is reflected through the first reflecting element 81, the second reflecting element 82, reflected light is transferred to the four sides mirror 3 of rotation；Similarly, four through rotating
The reflection of face mirror 3, reflected light all converge to first surface mirror 71, the second curved mirror 72；Since first surface mirror 71, second is bent
Face mirror 72 curves inwardly, so first surface mirror 71, the second curved mirror 72 can will converge to whole reflected lights thereon and focus
In corresponding first receiving device 51, the second reception device 52, first receiving device 51, the second reception device 52 connect a photoelectricity
The optical signal received can be converted to pulse digit electric signal by change-over panel, and the pulse digital signal is then passed through signal
Amplification board amplifies, then is transferred to photoelectric conversion plate and carries out photoelectric conversion, finally reaches terminal, completes reading code.
The light channel structure of the present embodiment is passed the optical signal after bar code scan by light channel structure using the invertibity of light
Turn to first receiving device 51, the second reception device 52, and by the photoelectricity of first receiving device 51, the second reception device 52
It changes, reaches terminal, complete reading code, it is easy to operate, and improve reading code efficiency.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (8)
1. a kind of light channel structure carries out barcode scanning for incident laser to be modulated to multi-thread shoot laser, which is characterized in that
The light channel structure includes at least: signal amplification board, first laser head, second laser head, first surface mirror, the second curved surface
Mirror, the first reflecting element, the second reflecting element, first receiving device, the second reception device, and the four sides mirror of rotation；
The first receiving device and the second reception device are installed on the signal amplification board, and incident laser is respectively by first laser
Head and second laser head project；
The center of the first surface mirror is equipped with the first aperture, and the center of second curved mirror is equipped with the second aperture, it is described enter
Penetrate the four sides mirror that laser is irradiated to the rotation across the first aperture or the second aperture；
First reflecting element, the second reflecting element include four pieces of plane mirrors or five pieces of plane mirrors or six pieces of plane mirrors；
The angle in four faces of the four sides mirror of the rotation is different, and incident laser is reflected into the first reflecting element, second respectively instead
Penetrate part；
Reflected light is irradiated to bar code by first reflecting element, the second reflecting element, is formed retrodirective reflection light, is irradiated to described first
Reflecting element, the second reflecting element；
Retrodirective reflection light is reflected into the four sides mirror of the rotation by first reflecting element, the second reflecting element；
The four sides mirror of the rotation is by reflected light back to first surface mirror, the second curved mirror；
Retrodirective reflection light reflection is focused on corresponding first receiving device, the respectively by the first surface mirror, the second curved mirror
Two reception devices.
2. light channel structure according to claim 1, which is characterized in that the light channel structure further includes the first plane mirror and second
Plane mirror, first plane mirror are located at the center of first surface mirror, and second plane mirror is located at the center of the second curved mirror,
Four sides mirror of the incident laser respectively through first plane mirror or the second plane mirror reflected illumination to the rotation.
3. light channel structure according to claim 1, which is characterized in that at least one set of incident laser is worn after plane mirror reflects
It crosses the first aperture or the second aperture is irradiated to the four sides mirror of the rotation.
4. light channel structure according to claim 1, which is characterized in that
First reflecting element, the second reflecting element four pieces of plane mirrors normal direction and installation pedestal bottom plane normal direction folder
Angle is followed successively by 42.3 °, 43.8 °, 43.8 °, 42.3 °, and the normal angle of adjacent two eyeglass of four pieces of plane mirrors is followed successively by
35.5°,33.0°,35.5°；
First reflecting element, the second reflecting element five pieces of plane mirrors normal direction and installation pedestal bottom plane normal direction folder
Angle is followed successively by 42.9 °, 43.8 °, 41.6 °, 43.8 °, 42.9 °, and the normal angle of adjacent two eyeglass of five pieces of plane mirrors is successively
It is 25.7 °, 26.4 °, 26.4 °, 25.7 °；
First reflecting element, the second reflecting element six pieces of plane mirrors normal direction and installation pedestal bottom plane normal direction folder
Angle is followed successively by 42.1 °, 43.5 °, 41.4 °, 41.4 °, 43.5 °, 42.1 °, the normal direction folder of adjacent two eyeglass of six pieces of plane mirrors
Angle is followed successively by 22.1 °, 18.0 °, 16.6 °, 18.0 °, 22.1 °.
5. light channel structure according to claim 1, which is characterized in that first reflecting element, the reflection of the second reflecting element are anti-
The barcode scanning region for penetrating light formation is the grid of the grid of 32 lines or the grid of 40 lines or 48 lines.
6. the barcode scanning reading code method of light channel structure described in claim 1, which comprises the following steps:
Incident laser is modulated to the grid of 32 lines or 40 lines or 48 lines by light channel structure；
It is irradiated in bar code using the grid of 32 line or 40 lines or 48 lines and carries out barcode scanning, form retrodirective reflection light；
First receiving device, the second reception device receive the retrodirective reflection light, complete subsequent reads code.
7. the barcode scanning reading code method of light channel structure according to claim 6, which is characterized in that the light channel structure will be incident
The step of Laser Modulation is the grid of 32 lines or 40 lines or 48 lines, including following sub-step:
Two groups of incident lasers are respectively radiated to the four sides mirror of the rotation；
Incident laser is reflected into first reflecting element, the second reflecting element by the four sides mirror of the rotation respectively.
8. the barcode scanning reading code method of light channel structure according to claim 6, which is characterized in that the first receiving device,
The step of second reception device receives the retrodirective reflection light, completes subsequent reads code, including following sub-step:
First reflecting element, the second reflecting element described in retrodirective reflection light direct beam；
The retrodirective reflection light is reflected into the four sides mirror of the rotation by first reflecting element, the second reflecting element；
The retrodirective reflection light is reflected into first surface mirror, the second curved mirror by the four sides mirror of the rotation；
Retrodirective reflection light reflection is focused on corresponding first respectively and receives dress by the first surface mirror, the second curved mirror
It sets, the second reception device.
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| CN111523333B (en) * | 2019-02-01 | 2023-07-04 | 亚旭电脑股份有限公司 | Bar code reader |
| CN111680647A (en) * | 2020-06-12 | 2020-09-18 | 中华人民共和国杭州海关 | Goggles for hazardous chemical substance detection and detection method thereof |
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