CN106250793B - Scanning head - Google Patents
Scanning head Download PDFInfo
- Publication number
- CN106250793B CN106250793B CN201610629965.6A CN201610629965A CN106250793B CN 106250793 B CN106250793 B CN 106250793B CN 201610629965 A CN201610629965 A CN 201610629965A CN 106250793 B CN106250793 B CN 106250793B
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- CN
- China
- Prior art keywords
- polaroid
- imaging device
- light source
- scanning head
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- G06K7/10821—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 further details of bar or optical code scanning devices
- G06K7/10881—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 further details of bar or optical code scanning devices constructional details of hand-held scanners
-
- 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
- G06K7/10821—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 further details of bar or optical code scanning devices
- G06K7/10831—Arrangement of optical elements, e.g. lenses, mirrors, prisms
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Artificial Intelligence (AREA)
- Toxicology (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Studio Devices (AREA)
- Image Input (AREA)
- Microscoopes, Condenser (AREA)
Abstract
The present invention provides a kind of scanning heads, comprising: an imaging device, the imaging device are used to that scanned target to be imaged；The light area of one light source, the light source is located in the imaging region of the imaging probe, with auxiliary positioning scanned target；The light source includes the first polaroid, and first polaroid is for filtering to the luminous of light source；The imaging device includes the second polaroid, and the scanned target is imaged in the imaging device by second polaroid；The polarizing axis of first polaroid and the second polaroid differs 90 degree, so that the light by first polaroid ends in second polaroid.
Description
Technical field
The present invention relates to field of mobile terminals more particularly to a kind of scanning heads.
Background technique
Scanning head is a kind of for scanning the terminal device of fixed image.Scanned image for example can be bar code,
Two dimensional code or other image informations that can be read.And the principle scanned is also possible to infrared light scanning or visible light
Imaging.The two dimensional code or bar code of plane are scanned using the camera of a visible light, be in the prior art it is a kind of very
Common scene.And under this scanning scene, how scanned two dimensional code or bar code be placed on camera just
Center, be to need a problem solving.It is in the prior art usually the user of end of scan by observing scanning
Screen in terminal determines that end of scan and scanned figure are in suitable relative position.The shortcomings that this way, is
Alignment takes a long time, and scanned image is needed to be in lower position, is convenient for user's hand-hold scanning terminal
And carry out viewing screen above end of scan.
A kind of method for solving the problems, such as this is to form one using visible light source transmitter and beam condensing unit in the prior art
The range of exposures of beam fill-in light, the fill-in light is located within the imaging region of the imaging probe, to make user straight
It connects, accurately scanned object is directly placed within imaging region.The disadvantages of this method is that fill-in light can be illuminated
Region in formed a flare, thus influence scanned object imaging clarity.Therefore, how fill-in light pair is avoided
The influence of scanned object imaging, is prior art urgent problem to be solved.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of scanning heads, can be avoided fill-in light to scanned
The influence of body imaging.
To solve the above-mentioned problems, the present invention provides a kind of scanning heads, comprising: an imaging device, the imaging dress
It sets for scanned target to be imaged；The light area of one light source, the light source is located in the imaging region of the imaging probe,
With auxiliary positioning scanned target；The light source include the first polaroid, first polaroid be used for light source shine into
Row filters；The imaging device includes the second polaroid, and the scanned target is by second polaroid in the imaging
Imaging in device；The polarizing axis of first polaroid and the second polaroid differs 80-100 degree, so that partially by described first
The light of mating plate ends in second polaroid.
Optionally, the polarizing axis of first polaroid and the second polaroid differs 80-100 degree.
Optionally, the scanned target is two dimensional code or bar code.
Optionally, the scanning head is Handheld two-dimensional code probe.
It is an advantage of the current invention that light source is by the first polaroid in the flare that scanned target surface is formed
What polarization light was formed, and this hot spot can be filtered out just by the second polaroid, thus will not be imaged in imaging device, into
Image definition without influencing whether scanning target.
Detailed description of the invention
It is the structural schematic diagram of scanning head of the present invention shown in attached drawing 1.
Specific embodiment
The specific embodiment for providing scanning head to the present invention with reference to the accompanying drawing elaborates.
It is the structural schematic diagram of scanning head of the present invention shown in attached drawing 1, comprising: a light source 10 and an imaging device
20.The imaging device 20 is used to that scanned target to be imaged.The light area of the light source 10 is located at the imaging probe
In imaging region, with auxiliary positioning scanned target 30.But light source 10 also will form while being irradiated to scanned target 30
With flare.The hot spot can be imaged in imaging device 20, and the image of scanned target 30 is made to be difficult to recognize.
Therefore, in this embodiment, the light source 10 includes the first polaroid 11, and first polaroid 11 is used
It filters in the luminous of light source；And the imaging device 20 includes the second polaroid 22, the scanned target 30 passes through
Second polaroid 22 is imaged in the imaging device 20.The polarizing axis of first polaroid 11 and the second polaroid 22
Differ 80-100 degree.It has the advantage that in this way, light source 10 is by leading in the flare that 30 surface of scanned target is formed
The polarised light formation of the first polaroid 11 is crossed, and this polarised light can be filtered out just by the second polaroid 22, thus will not
It is imaged in imaging device 20, and then does not interfere with the image definition of scanning target 30.It was verified that first polarisation
In the range of the polarizing axis of piece 11 and the second polaroid 22 differs 80-100 degree, the filtration result of flare can be met
The requirement of image recognition does not interfere with the image definition of scanning target 30.It is preferred that first polaroid 11 and second is inclined
The polarizing axis of mating plate 22 differs 90 degree, reflected light can all be filtered out.In this embodiment, the scanned target
30 scanned targets are two dimensional code or bar code, and scanning head is Handheld two-dimensional code scanning head.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (4)
1. a kind of scanning head, comprising:
One imaging device, the imaging device are used to that scanned target to be imaged；
The light area of one light source, the light source is located in the imaging region of the imaging device, is scanned mesh with auxiliary positioning
Mark；It is characterized by:
The light source includes the first polaroid, and first polaroid is for filtering to the luminous of light source；
The imaging device includes the second polaroid, and the scanned target is by second polaroid in the imaging device
Interior imaging；First polaroid and second polaroid be not be overlapped；
The polarizing axis of first polaroid and the second polaroid differs 80-100 degree, so as to pass through the light of first polaroid
Line ends in second polaroid, avoids passing through the light of first polaroid in scanned target surface shape
At flare be imaged in the imaging device so that the image definition of the scanned target is unaffected.
2. scanning head according to claim 1, which is characterized in that the polarisation of first polaroid and the second polaroid
Axis differs 90 degree.
3. scanning head according to claim 1, which is characterized in that the scanned target is two dimensional code or bar shaped
Code.
4. scanning head according to claim 1, which is characterized in that the scanning head is Handheld two-dimensional code scanning
Head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610629965.6A CN106250793B (en) | 2016-08-04 | 2016-08-04 | Scanning head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610629965.6A CN106250793B (en) | 2016-08-04 | 2016-08-04 | Scanning head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106250793A CN106250793A (en) | 2016-12-21 |
| CN106250793B true CN106250793B (en) | 2019-06-11 |
Family
ID=57606700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610629965.6A Active CN106250793B (en) | 2016-08-04 | 2016-08-04 | Scanning head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106250793B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019169517A1 (en) * | 2018-03-04 | 2019-09-12 | 无锡盈达聚力科技有限公司 | Barcode recognition component and barcode recognition device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201965344U (en) * | 2010-12-07 | 2011-09-07 | 沈国宝 | Polaroid glasses with adjustable transmittance |
| CN102196181A (en) * | 2011-05-13 | 2011-09-21 | 北京天地融科技有限公司 | Image acquisition device |
| CN204515212U (en) * | 2015-03-20 | 2015-07-29 | 深圳市聚融鑫科科技有限公司 | A kind of spectral filtering device |
| CN105424668A (en) * | 2015-12-22 | 2016-03-23 | 深圳先进技术研究院 | Fluorescent screening system |
| CN205121582U (en) * | 2015-11-11 | 2016-03-30 | 上海慧银信息科技有限公司 | Handheld scanner |
-
2016
- 2016-08-04 CN CN201610629965.6A patent/CN106250793B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201965344U (en) * | 2010-12-07 | 2011-09-07 | 沈国宝 | Polaroid glasses with adjustable transmittance |
| CN102196181A (en) * | 2011-05-13 | 2011-09-21 | 北京天地融科技有限公司 | Image acquisition device |
| CN204515212U (en) * | 2015-03-20 | 2015-07-29 | 深圳市聚融鑫科科技有限公司 | A kind of spectral filtering device |
| CN205121582U (en) * | 2015-11-11 | 2016-03-30 | 上海慧银信息科技有限公司 | Handheld scanner |
| CN105424668A (en) * | 2015-12-22 | 2016-03-23 | 深圳先进技术研究院 | Fluorescent screening system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106250793A (en) | 2016-12-21 |
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