CN2461081Y - Double-laser light-source bar code scanner - Google Patents
Double-laser light-source bar code scanner Download PDFInfo
- Publication number
- CN2461081Y CN2461081Y CN 01210244 CN01210244U CN2461081Y CN 2461081 Y CN2461081 Y CN 2461081Y CN 01210244 CN01210244 CN 01210244 CN 01210244 U CN01210244 U CN 01210244U CN 2461081 Y CN2461081 Y CN 2461081Y
- Authority
- CN
- China
- Prior art keywords
- laser light
- light source
- bar code
- photodetector
- double
- 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.)
- Expired - Lifetime
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model relates to adouble-laser light-source bar code scanner which is mainly composed of a laser source, a beam splitter mirror, a total reflection mirror, a condenser lens, a photoelectric detector, a polygon reflecting prism and a circuit board. The utility model also comprises the laser source and a photodetector. The new added laser source is arranged in parallel with the original laser source, and a pin of the photosensor is connected with the circuit board.
Description
The utility model relates to a kind of barcode scanner, particularly a kind of double laser light source barcode scanner belongs to laser device field.
Along with developing rapidly of science and technology and commerce and trade, the scanner that utilizes laser to discern bar code is widely used in daily life, up to now, laser class barcode scanner only has a LASER Light Source, its single LASER Light Source produces the laser of single focal length, can identification bar code the depth of field of sharpness limited.
The purpose of this utility model is to overcome deficiency of the prior art, and a kind of double laser light source barcode scanner is provided, and reads the bar code of different distance scope with different focal lengths, has increased by 1 times scanning distance.
The technical solution of the utility model is as follows: mainly comprise: two LASER Light Source, beam splitter, completely reflecting mirror, collector lens, photodetector, facetted mirrors prism and circuit board.Compare with the single laser light source barcode scanner, this double laser light source barcode scanner has increased a LASER Light Source, newly-increased LASER Light Source and the parallel placement of former LASER Light Source, beam splitter makes two bundle laser respectively after beam splitter transmission or reflection, propagate along same light path, and increase a photodetector, the pin of photodetector is connected to circuit board, its effect is the induction synchronous triggering, makes co-ordination between photodetector and two LASER Light Source.
The utility model course of work is as follows: at first, open former LASER Light Source, the laser beam that sends from light source is after mirror reflects, project on the beam splitter, beam splitting is transmitted light beam and folded light beam, transmitted light beam is again through behind two secondary reflections, be projeced on the reflecting surface of facetted mirrors prism front end of rotation, rotation along with the facetted mirrors prism, when transmitted light beam just in time is projeced into the junction of adjacent two reflectings surface of reflecting prism, the beginning bar code scan, at this moment, folded light beam is after another reflecting surface reflection of facetted mirrors prism rear end, just can be projeced on the former photodetector, produce trigger pip, trigger former photodetector, survey the recovery light signal after the bar code reflection; After finishing bar code scan, close former LASER Light Source this moment, open newly-increased LASER Light Source, from laser beam that light source sends after the beam splitter beam splitting, its reflected light is used for scanning barcode, transmitted light projects newly-increased photodetector, produce trigger pip, trigger newly-increased photodetector, the recovery light signal of survey after the bar code reflection of exploring, finish another time bar code scan, then, close newly-increased LASER Light Source again, open former LASER Light Source, so round-robin work, and realize the purpose of synchro control and the function of bar code scan.
The utlity model has two LASER Light Source, produce visible and infrared beam respectively, visible light beam after the focusing is different in the focal position in bar code scan space with infrared beam, has the different depth of field, the two cooperatively interacts, just can read the bar code of different distance scope, thereby improve the bar-code identification ability greatly.
Below in conjunction with accompanying drawing utility model is further described:
Fig. 1 the utility model structural representation
As shown in Figure 1, the utility model mainly comprises: two LASER Light Source 1,2, beam splitter 3, completely reflecting mirror 4,7,9, collector lens 6, photodetector 5,8, facetted mirrors prism 10 and circuit board 11, compare with the single laser light source barcode scanner, this double laser light source barcode scanner has increased a LASER Light Source 2, LASER Light Source 2 and LASER Light Source 1 parallel placement, beam splitter 3 make two bundle laser respectively after beam splitter 3 transmissions or reflection, along same light path propagation, and increase a photodetector 8, the pin of photodetector 8 is connected to circuit board 11, and its effect is the induction synchronous triggering, makes co-ordination between photodetector 8 and two LASER Light Source.
Claims (1)
1, a kind of double laser light source barcode scanner, mainly comprise LASER Light Source (1), beam splitter (3), completely reflecting mirror (4), (7), (9), collector lens (6), photodetector (5), facetted mirrors prism (10) and circuit (11), it is characterized in that also comprising LASER Light Source (2) and photodetector (8), LASER Light Source (2) and the parallel placement of LASER Light Source (1), the pin of photodetector (8) is connected to circuit board (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01210244 CN2461081Y (en) | 2001-01-17 | 2001-01-17 | Double-laser light-source bar code scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01210244 CN2461081Y (en) | 2001-01-17 | 2001-01-17 | Double-laser light-source bar code scanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2461081Y true CN2461081Y (en) | 2001-11-21 |
Family
ID=33629829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01210244 Expired - Lifetime CN2461081Y (en) | 2001-01-17 | 2001-01-17 | Double-laser light-source bar code scanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2461081Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100403329C (en) * | 2003-10-23 | 2008-07-16 | 巨豪实业股份有限公司 | Variable scanning apparatus and method for laser bar code reading device |
| CN100447803C (en) * | 2004-04-20 | 2008-12-31 | 巨豪实业股份有限公司 | Dynamic scan structure of bar code reader |
| CN103761501A (en) * | 2014-02-18 | 2014-04-30 | 苏州德沃智能系统有限公司 | Laser bar code scanning device |
| CN104392199A (en) * | 2014-12-10 | 2015-03-04 | 福建新大陆电脑股份有限公司 | Double-laser scanning equipment |
| CN105509926A (en) * | 2016-01-29 | 2016-04-20 | 珠海欧森斯科技有限公司 | Light path coupling device and fluorescence temperature sensing optical system |
-
2001
- 2001-01-17 CN CN 01210244 patent/CN2461081Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100403329C (en) * | 2003-10-23 | 2008-07-16 | 巨豪实业股份有限公司 | Variable scanning apparatus and method for laser bar code reading device |
| CN100447803C (en) * | 2004-04-20 | 2008-12-31 | 巨豪实业股份有限公司 | Dynamic scan structure of bar code reader |
| CN103761501A (en) * | 2014-02-18 | 2014-04-30 | 苏州德沃智能系统有限公司 | Laser bar code scanning device |
| CN104392199A (en) * | 2014-12-10 | 2015-03-04 | 福建新大陆电脑股份有限公司 | Double-laser scanning equipment |
| CN104392199B (en) * | 2014-12-10 | 2017-10-13 | 福建新大陆电脑股份有限公司 | dual laser scanning device |
| CN105509926A (en) * | 2016-01-29 | 2016-04-20 | 珠海欧森斯科技有限公司 | Light path coupling device and fluorescence temperature sensing optical system |
| CN105509926B (en) * | 2016-01-29 | 2018-06-08 | 珠海欧森斯科技有限公司 | Light path coupling device and fluorescence temperature sensing optical system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110117 Granted publication date: 20011121 |