CN207367238U - A kind of implicit pattern identification system - Google Patents
A kind of implicit pattern identification system Download PDFInfo
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- CN207367238U CN207367238U CN201721554827.2U CN201721554827U CN207367238U CN 207367238 U CN207367238 U CN 207367238U CN 201721554827 U CN201721554827 U CN 201721554827U CN 207367238 U CN207367238 U CN 207367238U
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- infrared
- implicit pattern
- infrared light
- light
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Abstract
The utility model discloses a kind of implicit pattern identification system, including：Implicit pattern, for absorbing the polarised light on the first polarization direction, and reflects the polarised light on the second polarization direction；Infrared generator, for launching infrared light to the implicit pattern；Infreared imaging device, for receiving the infrared light reflected, and is imaged according to the infrared light received；Wherein, the first polarization direction and the second polarization direction are perpendicular.The implicit pattern identification system only can recognize that implicit pattern under infreared imaging device, have the advantages such as hiding is good, resolution is high.
Description
Technical field
It the utility model is related to anti-counterfeiting identification field, more particularly to a kind of implicit pattern identification system.
Background technology
With the development of commodity economy, counterfeit goods is also largely full of in our life, it is therefore desirable to a kind of simple
Certified products commodity are identified in effective anti-counterfeiting technology.
Utility model content
In order to solve above-mentioned the deficiencies in the prior art, the utility model provides a kind of implicit pattern identification system, it only exists
Implicit pattern is can recognize that under infreared imaging device, and there is the advantages such as hiding is good, resolution is high.
Technical problem to be solved in the utility model is achieved by the following technical programs：
A kind of implicit pattern identification system, including：
Implicit pattern, for absorbing the polarised light on the first polarization direction, and reflects the polarised light on the second polarization direction；
Infrared generator, for launching infrared light to the implicit pattern；
Infreared imaging device, for receiving the infrared light reflected, and is imaged according to the infrared light received；
Wherein, the first polarization direction and the second polarization direction are perpendicular.
Further, the infreared imaging device includes camera lens and infrared sensitive chip, and the infrared light passes through the mirror
Head is radiated on the infrared sensitive chip, so that the infrared sensitive chip is imaged according to infrared light.
Further, the infreared imaging device, which is further included into the polarization layer on light path, the polarization layer, has first
Polarization direction, for stopping the polarized infrared light on the second polarization direction.
Further, the polarization layer is polarizer, polariscope or polarization plated film.
Further, the infrared light of the infrared generator transmitting is narrow ripple infrared light；The infreared imaging device is also
Including launching into the narrow ripple infrared absorption filter photosphere on light path, the wave band of the narrow ripple infrared absorption filter photosphere and the infrared generator
Narrow ripple infrared light wave band it is corresponding.
Further, the wave band of the narrow ripple infrared light and narrow ripple infrared absorption filter photosphere is 850nm.
Further, the implicit pattern makes of polarized light absorption material.
A kind of hidden image discrimination method, system is represented using above-mentioned hidden image, including：
Step 1：The infrared generator launches infrared light to the implicit pattern；
Step 2：The implicit pattern absorbs the polarized infrared light on the first polarization direction in infrared light, and it is inclined to reflect second
The polarized infrared light to shake on direction；
Step 3：The infreared imaging device receives the infrared light reflected, and according to the infrared light received carry out into
Picture.
Further, further included between the step 2 and step 3：Stopped using the polarization layer with the first polarization direction
Polarized infrared light on second polarization direction.
Further, the wave band of the infrared light of the infrared generator transmitting is 850nm, and the infreared imaging device connects
The wave band of the infrared light of receipts is 850nm.
The utility model has the advantages that：The implicit pattern identification system is by the infrared generator to institute
Implicit pattern transmitting infrared light is stated, infrared light is projected in the infreared imaging device after reflection forms infrared picture, described
Infrared generator launch for common infrared light, due to the implicit pattern can absorb it is infrared on the first polarization direction
Polarized light absorption, and the polarized infrared light on the second polarization direction is reflected, and the outer peripheral areas of the implicit pattern can reflect
Common infrared light, as shown in Fig. 2, the finally formed infrared picture of the infreared imaging device can be than week at the implicit pattern
It is dark to enclose region, this makes it possible to identify the implicit pattern.
Brief description of the drawings
Fig. 1 is the schematic diagram of implicit pattern identification system provided by the utility model；
Fig. 2 is the schematic diagram for the infrared picture that the infreared imaging device of the implicit pattern identification system shown in Fig. 1 obtains；
Fig. 3 is the step block diagram of implicit pattern discrimination method provided by the utility model.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.
Embodiment one
As shown in Figure 1, a kind of implicit pattern identification system, including：
Implicit pattern 3, for absorbing the polarised light on the first polarization direction, and reflects the polarization on the second polarization direction
Light；
Infrared generator 1, for launching infrared light to the implicit pattern 3；
Infreared imaging device 2, for receiving the infrared light reflected, and is imaged according to the infrared light received；
Wherein, the first polarization direction and the second polarization direction are perpendicular.
The implicit pattern identification system launches infrared light by the infrared generator 1 to the implicit pattern 3, infrared
Light is projected in the infreared imaging device 2 after reflection forms infrared picture, the infrared generator 1 launch to be general
Logical infrared light（There is the polarized infrared light on the polarized infrared light and the second polarization direction on the first polarization direction）, by institute
Infrared polarization light absorbs on the first polarization direction can be absorbed by stating implicit pattern 3, and be reflected infrared on the second polarization direction
Polarised light, and the outer peripheral areas of the implicit pattern 3 can reflect common infrared light（Reflect at the same time on the first polarization direction
Polarized infrared light on polarized infrared light and the second polarization direction）, the finally formed infrared picture of infreared imaging device 2 exists
Can be darker than peripheral region at the implicit pattern 3, this makes it possible to identify the implicit pattern 3.
Specifically, the infreared imaging device 2 includes camera lens 21 and infrared sensitive chip 22, the infrared light passes through described
Camera lens 21 is radiated on the infrared sensitive chip 22, so that the infrared sensitive chip 22 is imaged according to infrared light.
Preferably, the infreared imaging device 2, which is further included into the polarization layer 4 on light path, the polarization layer 4, has first
Polarization direction, for stopping the polarized infrared light on the second polarization direction.
The polarized infrared light on the second polarization direction so reflected by the implicit pattern 3 will be by the polarization layer 4
Stop, and cause the finally formed infrared picture of the infreared imaging device 2 can be entirely dark at the implicit pattern 3（Do not have completely
There is infrared light）, can make the implicit pattern 3 it is dark and outer peripheral areas it is bright between be preferably contrasted, be conducive to more preferable
Ground recognizes the implicit pattern 3.
The polarization layer 4 can be arranged on the front of the camera lens 21, in camera lens 21, the lens surface of camera lens 21 or institute
Any place in the front of infrared sensitive chip 22 is stated, the polarization layer 4 can be polarizer, polariscope or polarization plated film etc..
Preferably, the infrared light that the infrared generator 1 is launched is narrow ripple infrared light；The infreared imaging device 2 is also
Including into the narrow ripple infrared absorption filter photosphere 23 on light path, the wave band and the infrared generator of the narrow ripple infrared absorption filter photosphere 23
The wave band of the narrow ripple infrared light of 1 transmitting is corresponding.
The narrow ripple infrared absorption filter photosphere 23 can be arranged on the front of the camera lens 21, in camera lens 21, the lens of camera lens 21
Any place in surface or the front of the infrared sensitive chip 22, the narrow ripple infrared absorption filter photosphere 23 can be that narrow ripple is infrared
Optical filter, narrow ripple infrared filter or narrow ripple infrared filtering plated film etc..
Optimally, the wave band of the narrow ripple infrared light and narrow ripple infrared absorption filter photosphere 23 is 850nm.
The implicit pattern 3 makes of polarized light absorption material, optimal to use 850nm infrared polarization light absorbing material systems
Make.
Embodiment two
As shown in figure 3, a kind of hidden image discrimination method, system is represented applied to the hidden image described in embodiment one
System, including：
Step 1：The infrared generator 1 launches infrared light to the implicit pattern 3；
Step 2：The implicit pattern 3 absorbs the polarized infrared light on the first polarization direction in infrared light, and reflects second
Polarized infrared light on polarization direction；
Step 3：The infreared imaging device 2 receives the infrared light reflected, and according to the infrared light received carry out into
Picture.
Preferably, further included between the step 2 and step 3：Stop the using the polarization layer 4 with the first polarization direction
Polarized infrared light on two polarization directions.
Preferably, the wave band for the infrared light that the infrared generator 1 is launched is 850nm, and the infreared imaging device 2 connects
The wave band of the infrared light of receipts is 850nm.
Embodiment described above only expresses the embodiment of the utility model, its description is more specific and detailed, but simultaneously
Therefore the limitation to the utility model patent scope cannot be interpreted as, as long as using equivalent substitution or the form of equivalent transformation institute
The technical solution of acquisition, should all fall within the scope of protection of the utility model.
Claims (7)
- A kind of 1. implicit pattern identification system, it is characterised in that including：Implicit pattern, for absorbing the polarised light on the first polarization direction, and reflects the polarised light on the second polarization direction；Infrared generator, for launching infrared light to the implicit pattern；Infreared imaging device, for receiving the infrared light reflected, and is imaged according to the infrared light received；Wherein, the first polarization direction and the second polarization direction are perpendicular.
- 2. implicit pattern identification system according to claim 1, it is characterised in that the infreared imaging device includes camera lens With infrared sensitive chip, the infrared light is radiated on the infrared sensitive chip by the camera lens, so that the infrared sense Optical chip is imaged according to infrared light.
- 3. implicit pattern identification system according to claim 1 or 2, it is characterised in that the infreared imaging device also wraps Including into the polarization layer on light path, the polarization layer has the first polarization direction, infrared on the second polarization direction for stopping Polarised light.
- 4. implicit pattern identification system according to claim 3, it is characterised in that the polarization layer is polarizer, polarization Mirror or polarization plated film.
- 5. implicit pattern identification system according to claim 1 or 2, it is characterised in that the infrared generator transmitting Infrared light be narrow ripple infrared light；The infreared imaging device is further included into the narrow ripple infrared absorption filter photosphere on light path, described narrow The wave band of the wave band of ripple infrared absorption filter photosphere and the narrow ripple infrared light of infrared generator transmitting is corresponding.
- 6. implicit pattern identification system according to claim 5, it is characterised in that the narrow ripple infrared light and narrow ripple are infrared The wave band of filter layer is 850nm.
- 7. implicit pattern identification system according to claim 1, it is characterised in that the implicit pattern polarized light absorption Material makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721554827.2U CN207367238U (en) | 2017-11-20 | 2017-11-20 | A kind of implicit pattern identification system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721554827.2U CN207367238U (en) | 2017-11-20 | 2017-11-20 | A kind of implicit pattern identification system |
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| CN207367238U true CN207367238U (en) | 2018-05-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107798320A (en) * | 2017-11-20 | 2018-03-13 | 信利光电股份有限公司 | A kind of implicit pattern identification system and discrimination method |
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2017
- 2017-11-20 CN CN201721554827.2U patent/CN207367238U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107798320A (en) * | 2017-11-20 | 2018-03-13 | 信利光电股份有限公司 | A kind of implicit pattern identification system and discrimination method |
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