CN209980781U - Optical disk with physical structure three-dimensional code - Google Patents
Optical disk with physical structure three-dimensional code Download PDFInfo
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- CN209980781U CN209980781U CN201921054022.0U CN201921054022U CN209980781U CN 209980781 U CN209980781 U CN 209980781U CN 201921054022 U CN201921054022 U CN 201921054022U CN 209980781 U CN209980781 U CN 209980781U
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Abstract
The utility model relates to a CD technical field that guards against falsification specifically discloses a CD with physical structure three-dimensional code, wherein, the CD with physical structure three-dimensional code includes: the information area, inner ring identification area and the clamping area that set gradually from inside to outside, inner ring identification area and/or clamping area are provided with three-dimensional code structure, three-dimensional code structure includes the supporting layer, have a plurality of protruding structures adjacent or that the interval set up on the supporting layer, it is a plurality of two at least protruding structures in the protruding structure have different depths, have the different degree of depth the degree of depth of protruding structure corresponds the 1/4 wavelength of the light of different colours respectively. The utility model provides a CD with physical structure three-dimensional code has improved the anti-fake intensity of CD.
Description
Technical Field
The utility model relates to a CD technical field that guards against falsification especially relates to a CD with physical structure three-dimensional code.
Background
The anti-counterfeiting measures used by the optical disc in the market at present comprise laser anti-counterfeiting marks, ISRC, SID code anti-counterfeiting and the like, but currently, many pirated products have counterfeit or bypass the anti-counterfeiting measures, so that the anti-counterfeiting effect of the optical disc is greatly reduced. Meanwhile, when the management department checks the authenticity of the optical disc, the anti-counterfeiting information on the printing surface is easy to forge, the laser-recorded anti-counterfeiting information which is difficult to forge is compared with the copyright electronic database of the management department, the operation is complex, and the supervision efficiency is not improved favorably.
In addition, although some optical discs are provided with two-dimensional codes to improve anti-counterfeiting performance, the two-dimensional codes are difficult to realize high-strength anti-counterfeiting performance due to the capacity and the technical limit value of the two-dimensional codes in the anti-counterfeiting aspect.
Disclosure of Invention
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least, provide an optical disc with physical structure three-dimensional code to solve the problem among the prior art.
As a first aspect of the present invention, there is provided an optical disc having a physical structure three-dimensional code, wherein the optical disc having a physical structure three-dimensional code includes: the information area, inner ring identification area and the clamping area that set gradually from inside to outside, inner ring identification area and/or clamping area are provided with three-dimensional code structure, three-dimensional code structure includes the supporting layer, have a plurality of protruding structures adjacent or that the interval set up on the supporting layer, it is a plurality of two at least protruding structures in the protruding structure have different depths, have the different degree of depth the degree of depth of protruding structure corresponds the 1/4 wavelength of the light of different colours respectively.
Preferably, the information area, the inner ring identification area and the clamping area all include a printing surface, an ink layer, a protective layer, an information layer and an information surface which are sequentially arranged from top to bottom, the support layer of the three-dimensional code structure and the protruding structure are both arranged on the information layer of the inner ring identification area and/or the clamping area, and information pits are arranged in the information layer of the information area.
Preferably, the protruding structure comprises at least one step, and the depths of the steps in the same protruding structure respectively correspond to 1/4 wavelengths of light with different colors.
Preferably, a plurality of different first two-dimensional code images are formed on the 1/4-wavelength step surfaces corresponding to the same color of light in the plurality of protruding structures, a plurality of different second two-dimensional code images are formed on the 1/4-wavelength step surfaces corresponding to different colors of light in the plurality of protruding structures, and the plurality of different first two-dimensional code images and the plurality of different second two-dimensional code images are combined to form a three-dimensional code image.
Preferably, the cross-sectional shape of the raised structures comprises a rectangle.
Preferably, the cross-sectional shape of the raised structures comprises a circle.
The utility model provides a CD with physical structure three-dimensional code, inner ring identification area and/or the centre gripping district through at the CD sets up three-dimensional code structure, and three-dimensional code structure is through the protruding structure that sets up the different degree of depth on the supporting layer, and the different degree of depth of protruding structure corresponds the 1/4 wavelength of the light of different colours respectively and realizes, the three-dimensional code that this kind of mode formed can improve capacity than the two-dimensional code, and realize owing to the 1/4 wavelength that adopts the light of different colours, make the anti-fake intensity of the three-dimensional code information that obtains after reading the image information behind this three-dimensional code and encoding higher, thereby make the anti-fake intensity of the CD that has this kind of three-dimensional code higher.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a bottom view of an optical disc with a physical structure three-dimensional code provided by the present invention.
Fig. 2 is a cross-sectional view of fig. 1.
Fig. 3 is a schematic diagram of a specific structure of a three-dimensional code structure provided by the present invention.
Fig. 4 is a partial area enlarged structure diagram of the inner ring identification area and/or the clamping area of the optical disc with the physical structure three-dimensional code.
Fig. 5 is a schematic view of a detailed structure of the protrusion structure provided by the present invention.
Fig. 6 is a schematic diagram of three-dimensional code encoding provided by the present invention.
Fig. 7 is a schematic structural diagram of a three-dimensional code reading apparatus provided by the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
As an aspect of the present invention, there is provided an optical disc having a physical structure three-dimensional code, wherein, as shown in fig. 1 to 3, the optical disc having a physical structure three-dimensional code includes: the information area A, inner ring identification area B and the centre gripping district C that set gradually from inside to outside, inner ring identification area B and/or centre gripping district C are provided with three-dimensional code structure 10, three-dimensional code structure 10 includes supporting layer 100, have a plurality of protruding structures 110 that adjacent or interval set up on the supporting layer 100, it is a plurality of two at least protruding structures 110 in protruding structure 110 have different depths, have the different degree of depth protruding structure 110's the depth corresponds the 1/4 wavelength of the light of different colours respectively.
The utility model provides a CD with physical structure three-dimensional code, inner ring identification area and/or the centre gripping district through at the CD sets up three-dimensional code structure, and three-dimensional code structure is through the protruding structure that sets up the different degree of depth on the supporting layer, and the different degree of depth of protruding structure corresponds the 1/4 wavelength of the light of different colours respectively and realizes, the three-dimensional code that this kind of mode formed can improve capacity than the two-dimensional code, and realize owing to the 1/4 wavelength that adopts the light of different colours, make the anti-fake intensity of the three-dimensional code information that obtains after reading the image information behind this three-dimensional code and encoding higher, thereby make the anti-fake intensity of the CD that has this kind of three-dimensional code higher.
It will be appreciated that light having different colours may be provided in the reading device of the three-dimensional code to form a scanning light source, and that reading the three-dimensional code structure on the optical disc in use enables a read signal to be obtained which may be used for encoding to achieve the anti-counterfeiting properties of the three-dimensional code.
It should also be understood that the three-dimensional code structure 10 may be disposed in the inner ring identification region B, the clamping region C, or both the inner ring identification region B and the clamping region C, and may be disposed as required.
Specifically, as shown in fig. 2 and 4, each of the information area a, the inner ring identification area B, and the clamping area C includes a printing surface 300, an ink layer 400, a protective layer 500, an information layer 600, and an information surface 700, which are sequentially disposed from top to bottom, the support layer 100 and the protrusion structures 110 of the three-dimensional code structure are disposed on the information layer of the inner ring identification area B and/or the clamping area C, and information pits 200 are disposed in the information layer of the information area a.
Specifically, as shown in fig. 5, the protruding structure 110 includes at least one step 111, and depths of the steps in the same protruding structure 110 respectively correspond to 1/4 wavelengths of light with different colors.
As shown in fig. 5, the protruding structure 110 includes three steps 111 as an example, wherein the depth of the first step corresponds to 1/4 λ of the first color light of the three-dimensional code scanned by the reading device1The depth of the second step corresponds to 1/4 lambda of the light of the second color of the light source scanned by the reading device of the three-dimensional code2The reading device of the three-dimensional code corresponding to the depth of the third step scans 1/4 lambda of the light of the third color of the light source3。
It should be understood that, when the plurality of protruding structures include a plurality of steps, the color of the light corresponding to the step depth in one of the protruding structures may be the same as or different from the color of the light corresponding to the step depth in the other protruding structures, so that a plurality of different depths can be implemented, and the information capacity formed by the three-dimensional code is more powerful.
Specifically, a plurality of different first two-dimensional code images are formed on the 1/4-wavelength step surfaces corresponding to the same color of light in the plurality of protruding structures, a plurality of different second two-dimensional code images are formed on the 1/4-wavelength step surfaces corresponding to different colors of light in the plurality of protruding structures, and the plurality of different first two-dimensional code images and the plurality of different second two-dimensional code images are combined to form a three-dimensional code image.
It should be understood that the step faces at the same 1/4 wavelength depth constitute independent two-dimensional code images. The step surfaces with different 1/4 wavelength depths form different two-dimensional code images, and a plurality of or multiple two-dimensional code images in the same image area can be combined into a three-dimensional code image.
During encoding, as shown in fig. 6, different digital units such as 0, 1, 2, 3 and the like which can be set by multiple independent two-dimensional code information can be independently encoded and independently output; but also can be cross-coded and output in a combined way, and can meet the technical requirements of different anti-counterfeiting strengths.
Preferably, the cross-sectional shape of the protruding structure 110 includes a rectangle.
Preferably, the cross-sectional shape of the protruding structure 110 includes a circle.
It should be understood that the cross-sectional shape of the protruding structure 110 may also be irregular, and the cross-sectional shape of the protruding structure 110 is not limited herein.
In order to realize reading of the three-dimensional code on the optical disc, as shown in fig. 7, a three-dimensional code reading apparatus is further provided, and specifically, the apparatus may include a light source mechanism 800 and a beam expanding mechanism 900, the beam expanding mechanism 900 is connected to the light source mechanism 800, the light source mechanism 800 includes a plurality of monochromatic light sources of different colors, and the monochromatic light sources of each color can be expanded by the beam expanding mechanism 900 and then emitted to the protruding structures of the three-dimensional code at different depths.
The utility model provides a reading device of this kind of three-dimensional code comprises the light source of a plurality of different wavelengths. When the image is read by a monochromatic light source according to the 1/4 wavelength, the height difference of the steps can obtain the maximum value and the minimum value of the light intensity, and a reading signal is obtained. By analogy, multiple independent two-dimensional code information can be obtained.
It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (6)
1. An optical disc having a physical structure three-dimensional code, comprising: the information area, inner ring identification area and the clamping area that set gradually from inside to outside, inner ring identification area and/or clamping area are provided with three-dimensional code structure, three-dimensional code structure includes the supporting layer, have a plurality of protruding structures adjacent or that the interval set up on the supporting layer, it is a plurality of two at least protruding structures in the protruding structure have different depths, have the different degree of depth the degree of depth of protruding structure corresponds the 1/4 wavelength of the light of different colours respectively.
2. The optical disc having a physical structure three-dimensional code according to claim 1, wherein the information area, the inner ring mark area and the clamping area each comprise a printed surface, an ink layer, a protective layer, an information layer and an information surface sequentially arranged from top to bottom, the support layer and the protrusion structure of the three-dimensional code structure are disposed on the information layer of the inner ring mark area and/or the clamping area, and information pits are disposed in the information layer of the information area.
3. The optical disc having a physical three-dimensional code according to claim 1 or 2, wherein the protruding structure comprises at least one step, and the depths of the steps in the same protruding structure correspond to 1/4 wavelengths of light with different colors, respectively.
4. The optical disc having a physical structure three-dimensional code according to claim 3, wherein the 1/4 wavelength step surfaces corresponding to the same color light in the plurality of the convex structures form a plurality of different first two-dimensional code images, the 1/4 wavelength step surfaces corresponding to different color light in the plurality of the convex structures form a plurality of different second two-dimensional code images, and the plurality of different first two-dimensional code images are combined with the plurality of different second two-dimensional code images to form a three-dimensional code image.
5. The optical disc having a physical three-dimensional code according to claim 1 or 2, wherein the cross-sectional shape of the protruding structure comprises a rectangle.
6. The optical disc having a physical three-dimensional code according to claim 1 or 2, wherein the cross-sectional shape of the protruding structure comprises a circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921054022.0U CN209980781U (en) | 2019-07-08 | 2019-07-08 | Optical disk with physical structure three-dimensional code |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921054022.0U CN209980781U (en) | 2019-07-08 | 2019-07-08 | Optical disk with physical structure three-dimensional code |
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| CN209980781U true CN209980781U (en) | 2020-01-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111814939A (en) * | 2020-07-06 | 2020-10-23 | 温州大学 | Well depth-based three-dimensional information code design method |
| WO2021003788A1 (en) * | 2019-07-08 | 2021-01-14 | 江苏新广联科技股份有限公司 | Three-dimensional code, and three-dimensional code reading device |
-
2019
- 2019-07-08 CN CN201921054022.0U patent/CN209980781U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021003788A1 (en) * | 2019-07-08 | 2021-01-14 | 江苏新广联科技股份有限公司 | Three-dimensional code, and three-dimensional code reading device |
| CN111814939A (en) * | 2020-07-06 | 2020-10-23 | 温州大学 | Well depth-based three-dimensional information code design method |
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