CN202815992U - Optical detection device - Google Patents
Optical detection device Download PDFInfo
- Publication number
- CN202815992U CN202815992U CN2012204835707U CN201220483570U CN202815992U CN 202815992 U CN202815992 U CN 202815992U CN 2012204835707 U CN2012204835707 U CN 2012204835707U CN 201220483570 U CN201220483570 U CN 201220483570U CN 202815992 U CN202815992 U CN 202815992U
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- Prior art keywords
- shooting camera
- catoptron
- light source
- optical detection
- imaging system
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- 230000003287 optical effect Effects 0.000 title claims abstract description 16
- 238000001514 detection method Methods 0.000 title claims abstract description 13
- 238000003384 imaging method Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 description 5
- 239000004744 fabric Substances 0.000 description 3
- 239000003086 colorant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Inspection Of Paper Currency And Valuable Securities (AREA)
Abstract
The utility model relates to an optical detection device, which comprises a lighting system and an imaging system, wherein the lighting system comprises light sources; the imaging system comprises at least one vertical shooting camera and oblique shooting camera; the lighting system also comprises at least one reflecting mirror; the reflecting mirrors are arranged at the optical paths of the oblique shooting cameras and vertical shooting cameras; and the imaging system is arranged at one side of the lighting system. By arranging the reflecting mirrors, the lighting system and the imaging system are separated, the two can be arranged separately to complete a better shooting contrast, the use method is simple and flexible, identification accuracy is high and the cost is low.
Description
Technical field
The utility model relates to a kind of optical detection apparatus.
Background technology
At present, by the understanding to the orientative feature of the new edition rmb paper currency announced, the photochromatic printing ink anti-counterfeiting technology has under the visible light condition observes the characteristics that present respectively green and blue (or blackish green) in different angles, this anti-counterfeiting technology does not also have manufactured counterfeit money person to copy at present, mainly is that the related optical ink material behavior of this technology gives prominence to, is difficult to copy.The optical ink anti-counterfeiting technology is that rmb paper currency false proof erected indestructible defence line one.
By the specificity analysis to the rmb paper currency optical ink, under the visible light condition, present respectively two kinds of colors by the luminous collection photochromatic printing ink of different angles, counterfeit money then only presents a kind of color, and the difference of the color of photochromatic printing ink that therefore can be by obtaining different angles realizes the discriminating to this type of counterfeit money.In the prior art, usually adopt oblique shooting camera to take the light that reflection favours bank note, adopt vertical shooting camera to take reflection perpendicular to the light of bank note, but, because the light that favours bank note is many, and relatively disperses, when a plurality of cameras being set taking pictures, quantity and position be bad control all, and the precision of taking is impacted.
In addition, on all multi-products or trade mark, for the false proof hologram image that usually can adopt as false proof icon or trade mark, also can adopt above-mentioned detection method, but have equally the problems referred to above.
Summary of the invention
The purpose of this utility model provides a kind of optical detection apparatus.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of optical detection apparatus, comprise illuminator, imaging system, described illuminator comprises light source, the described imaging decorum comprises at least one vertical shooting camera, oblique shooting camera, described illuminator also comprises at least one catoptron, described catoptron is arranged on light source to the light path at oblique shooting camera or vertical shooting camera place, and described imaging system is arranged on a side of described illuminator.
Preferably, described light source is provided with the first catoptron, the second catoptron to the light path at oblique shooting camera place.
Preferably, described light source is provided with the 3rd catoptron to the light path at vertical shooting camera place.
Preferably, described oblique shooting camera, vertical shooting camera comprise line array sensor, are arranged on the lens of described line array sensor front portion.
Preferably, described light source is provided with at least one, and described light source is one or more in red, green, blue, infrared.
Because technique scheme is used, the utility model compared with prior art has following advantages:
The utility model is by arranging catoptron, so that illuminator, imaging system are separated mutually, that can separate arranges both, thereby finishes better shooting contrast, and using method is simple, flexibly, differentiates that ratio of precision is higher, and with low cost.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model.
Wherein: 1, bank note; 2, light source; 3, light source; 4, the second catoptron; 5, the 3rd catoptron; 6, the first catoptron; 7, lens; 8, lens; 9, line array sensor; 10, line array sensor.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one:
A kind of optical detecting method, the method detects the color shifting ink of bank note, may further comprise the steps:
Step 1: bank note is placed within the effective range that light source can shine, light source, at least one vertical shooting camera and tiltedly shooting camera start working, light source is provided with at least one, can be in red, green, blue, infrared one or more;
Step 2: light source sends light beam irradiates bank note, and the reflection ray of light beam irradiates bank note comprises the light that favours bank note, perpendicular to the light of bank note, and the light that part favours bank note is incident to oblique shooting camera and takes after at least one mirror reflects; Light perpendicular to bank note is incident to vertical shooting camera shooting, and the light that is incident to oblique shooting camera, vertical camera parallels, the light that favours bank note such as part is incident to oblique shooting camera after two mirror reflects, the vertical shooting camera of light quilt after a mirror reflects perpendicular to bank note parallels with two light that reach incident;
Step 3: the picture that oblique shooting camera is taken compares with the picture that vertical shooting camera is taken: if the variable color of picture curing ink is normal, bank note is genuine note, otherwise then is counterfeit money.
Below concrete set forth a kind of device of realizing above-mentioned detection method:
As shown in Figure 1: it comprises illuminator, imaging system, and illuminator comprises light source 2, light source 3, and light source 2,3 is one or both in red, green, blue, infrared; The imaging decorum comprises at least one vertical shooting camera, oblique shooting camera, and in the present embodiment: vertical shooting camera comprises line array sensor 9, is arranged on the lens 7 of line array sensor 9 front portions; Equally, tiltedly shooting camera also comprises line array sensor 10, is arranged on the lens 8 of line array sensor 10 front portions.
Illuminator also comprises at least one catoptron, and specifically: light source 2,3 is provided with the first catoptron 6, the second catoptron 4 to the light path at oblique shooting camera place; Light source 2,3 is provided with the 3rd catoptron 5 to the light path at vertical shooting camera place.
Imaging system comprises vertical shooting camera, tiltedly shooting camera is arranged on the side that illuminator comprises light source 2,3, the first catoptron 6, the second catoptron 4, the 3rd catoptron 5, can increase and decrease the camera quantity in the imaging system as required, camera position is adjusted, to satisfy the needs of taking.
Embodiment two:
Present embodiment and embodiment one are basic identical, difference is that the method detects hologram image, with imaging system in different azimuth and cooperate the adjustment of the reflecting surface of the catoptron in the illuminator, hologram image to be detected is carried out multi-faceted shooting, again the picture of taking is analyzed, judged whether the image in each orientation is normal.
The device part is identical with embodiment one, and its structure is no longer given unnecessary details at this.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present utility model and according to this enforcement, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (5)
1. optical detection apparatus, comprise illuminator, imaging system, described illuminator comprises light source, the described imaging decorum comprises at least one vertical shooting camera, oblique shooting camera, it is characterized in that: described illuminator also comprises at least one catoptron, described catoptron is arranged on light source to the light path at oblique shooting camera or vertical shooting camera place, and described imaging system is arranged on a side of described illuminator.
2. a kind of optical detection apparatus according to claim 1 is characterized in that: be provided with the first catoptron, the second catoptron on the light path at the extremely oblique shooting camera place of described light source.
3. a kind of optical detection apparatus according to claim 1 is characterized in that: be provided with the 3rd catoptron on the light path at the extremely vertical shooting camera place of described light source.
4. a kind of optical detection apparatus according to claim 1 is characterized in that: described oblique shooting camera, vertical shooting camera comprise line array sensor, are arranged on the lens of described line array sensor front portion.
5. a kind of optical detection apparatus according to claim 1, it is characterized in that: described light source is provided with at least one, and described light source is one or more in red, green, blue, infrared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204835707U CN202815992U (en) | 2012-09-21 | 2012-09-21 | Optical detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204835707U CN202815992U (en) | 2012-09-21 | 2012-09-21 | Optical detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202815992U true CN202815992U (en) | 2013-03-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204835707U Expired - Lifetime CN202815992U (en) | 2012-09-21 | 2012-09-21 | Optical detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202815992U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105872325A (en) * | 2016-03-31 | 2016-08-17 | 北京格灵深瞳信息技术有限公司 | Image obtaining system |
| CN110839100A (en) * | 2019-11-18 | 2020-02-25 | 东莞智得电子制品有限公司 | Mobile phone key detection method and system |
-
2012
- 2012-09-21 CN CN2012204835707U patent/CN202815992U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105872325A (en) * | 2016-03-31 | 2016-08-17 | 北京格灵深瞳信息技术有限公司 | Image obtaining system |
| CN105872325B (en) * | 2016-03-31 | 2019-04-12 | 北京格灵深瞳信息技术有限公司 | A kind of image-taking system |
| CN110839100A (en) * | 2019-11-18 | 2020-02-25 | 东莞智得电子制品有限公司 | Mobile phone key detection method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Suzhou South Science Technology Electronic Co.,Ltd. Assignor: SUZHOU CASH GUARD CURRENCY DETECTION SCIENCE TECHNOLOGY Co.,Ltd. Contract record no.: 2014320010040 Denomination of utility model: Optical detection device and optical detection method Granted publication date: 20130320 License type: Exclusive License Record date: 20140408 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |