CN220639323U - Click-to-read printed matter - Google Patents
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- CN220639323U CN220639323U CN202321793151.8U CN202321793151U CN220639323U CN 220639323 U CN220639323 U CN 220639323U CN 202321793151 U CN202321793151 U CN 202321793151U CN 220639323 U CN220639323 U CN 220639323U
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- 238000013461 design Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
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- 238000002955 isolation Methods 0.000 description 4
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- 238000011161 development Methods 0.000 description 2
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- 230000004048 modification Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 208000029257 vision disease Diseases 0.000 description 1
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Abstract
The utility model provides a point-reading printed matter which comprises a first structural layer and a second structural layer, wherein the first structural layer is of a transparent or semitransparent structure, and at least one first point-reading identification part is printed on the first structural layer. At least one second click-to-read identification part is printed on the second structural layer, wherein the first structural layer and the second structural layer are overlapped up and down, the first structural layer is positioned on the upper layer, the first click-to-read identification part and the second click-to-read identification part are at least partially overlapped or adjacent, and the size of the first click-to-read identification part is smaller than that of the second click-to-read identification part. In the embodiment of the utility model, the size of the first click-to-read identification part on the first structural layer is smaller than that of the second click-to-read identification part on the second structural layer, and when the click-to-read identification equipment is used for acquiring the information of the click-to-read identification part, the first click-to-read identification part and the second click-to-read identification part can be rapidly distinguished according to the size, so that high-reliability stable identification is realized, and the condition of misreading messy codes is reduced or avoided.
Description
Technical Field
The utility model relates to the technical field of point-reading identification, in particular to a point-reading printed matter.
Background
The book with the click-to-read function is printed with a click-to-read identification part, the click-to-read identification part is identified by click-to-read identification equipment (such as a click-to-read pen), and the click-to-read identification equipment is matched with the corresponding click-to-read identification part according to a preset identification rule and sends out preset audio. The click-to-read function is an extension of the traditional books, and has wide application in the fields of children education, vision disorder crowd auxiliary reading and the like.
The double-layer click-to-read is a further development of the click-to-read function, wherein the upper layer and the lower layer have the same or similar content, but the preset audio corresponding to the click-to-read identification parts of the upper layer and the lower layer are different, such as a double-layer click-to-read product for revealing the human body structure, a double-layer click-to-read product for bilingual translation, and the like. In the use process, the click-to-read identification device needs to accurately identify the upper click-to-read identification part and the lower click-to-read identification part according to the operation of a user, especially realizes the function of passing through the click-to-read (namely, the click-to-read identification device acts on the upper layer but can identify the lower click-to-read identification part), the existing double-layer click-to-read product adopts the upper click-to-read identification part to carry out fuzzy processing to realize the purpose of passing through the click-to-read, the upper click-to-read identification part and the lower click-to-read identification part cannot be accurately identified, disorder code is easy to occur, the function of double-layer click-to-read cannot be completely realized, and the development of the double-layer click-to-read technology is limited.
The matters in the background section are only those known to the inventors and do not, of course, represent prior art in the field.
Disclosure of Invention
In view of one or more of the drawbacks of the prior art, an object of the present utility model is to provide a click-to-read print comprising:
a first structural layer having a first click recognition portion, the first structural layer being a transparent or translucent structure;
a second structure layer having a second click-to-read identification portion, wherein the first structure layer and the second structure layer are overlapped one above the other, and the first structure layer is located at an upper layer; and
a removable spacer layer is located between the first structural layer and the second structural layer.
According to one aspect of the utility model, the utility model also includes a click-to-read print comprising:
the first structure layer is of a transparent or semitransparent structure, and at least one first click identification part is printed on the first structure layer;
the second structure layer is printed with at least one second click-to-read identification part;
the first structure layer and the second structure layer are overlapped up and down, the first structure layer is located on the upper layer, the first click-to-read identification portion and the second click-to-read identification portion are at least partially overlapped or adjacent, and the size of the first click-to-read identification portion is smaller than that of the second click-to-read identification portion.
According to one aspect of the present utility model, the first click-to-read identification portion is a plurality of continuous pixel points printed on the first structural layer and has a preset code; the second click-to-read identification part is a plurality of continuous pixel points printed on the second structural layer and has preset codes; wherein the number of pixels in the first click-to-read identification portion is less than the number of pixels in the second click-to-read identification portion.
According to one aspect of the present utility model, the first click-to-read identification portion is a print specification size of 2×2, and the second click-to-read identification portion is a print specification size of 4*4.
According to one aspect of the present utility model, the first click-to-read identification portion is a print specification of an "L" arrangement, and the second click-to-read identification portion is a print specification of a rectangular or square arrangement.
According to an aspect of the present utility model, the print specification of the "L" shaped arrangement of the first click recognition portion is obtained after removing the partially printed pixel points on the basis of the print pattern of the rectangular or square arrangement.
According to one aspect of the utility model, the first and second structural layers are arranged to be capable of being spaced apart from each other to add a spacer layer between the first and second structural layers.
According to one aspect of the utility model, wherein the isolating layer covers the entire extent of the second structural layer, or the isolating layer is configured to be movable between the first structural layer and the second structural layer to cover different areas of the second structural layer.
According to one aspect of the utility model, the click-to-read printed matter further comprises a third structural layer, wherein at least one third click-to-read identification part is printed on the third structural layer; the second structure layer is a transparent or semitransparent structure;
the second structure layer and the third structure layer are overlapped up and down, the second structure layer is located on the upper layer, the second click-to-read identification portion and the third click-to-read identification portion are at least partially overlapped or adjacent, and the size of the second click-to-read identification portion is smaller than that of the third click-to-read identification portion.
According to one aspect of the utility model, wherein the first structural layer and the second structural layer are aligned at one of the edge locations and bound at the aligned edge; or the first structure layer and the second structure layer are respectively formed in two sheets of books, and the two sheets of books are bound into a whole.
According to one aspect of the utility model, wherein the first and second click-to-read identifiers are printed from a pigment containing carbon atoms; the point-reading identification device for cooperation with the point-reading printed matter is provided with an infrared sensor.
Compared with the prior art, the embodiment of the utility model provides a point-reading printed matter, which is provided with a first structural layer and a second structural layer which are overlapped up and down, wherein the size of a first point-reading identification part on the first structural layer is smaller than that of a second point-reading identification part on the second structural layer, and when point-reading identification equipment is used for acquiring information of the point-reading identification parts, the first point-reading identification part and the second point-reading identification part can be rapidly distinguished according to the size, so that high-reliability stable identification is realized, and the condition of error reading and messy codes is reduced or avoided.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of a print read in one embodiment of the utility model;
FIGS. 2A and 2B are schematic diagrams of a first structural layer in various embodiments of the present utility model;
FIGS. 3A and 3B are schematic diagrams of a second structural layer in various embodiments of the present utility model;
fig. 4 is a schematic representation of a first structural layer and a second structural layer superimposed on each other in one embodiment of the present utility model.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, and may be mechanically connected, electrically connected, or may communicate with each other, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
Fig. 1 and 4 illustrate a specific structure of a point-read print 10 according to one embodiment of the present utility model, and the point-read print 10 is described below in conjunction with fig. 1 and 4.
The click-to-read printed matter 10 in this embodiment includes a first structural layer 11 and a second structural layer 12, where the first structural layer 11 is a transparent or semitransparent structure, for example, a transparent or semitransparent sheet made of a material such as PET (polyethylene terephthalate plastic) PVC (polyvinyl chloride plastic), and of course, in different embodiments of the present utility model, other patterns or characters may be printed on the first structural layer 11, and the portion printed with the patterns or characters may be opaque, so as to meet the use requirement of the first structural layer 11 as a printed matter.
At least one first click recognition portion 111 is printed on the first structural layer 11, where the first click recognition portion 111 is, for example, a graphic block with a preset code, and after the click recognition device scans the first click recognition portion 111, a corresponding audio play can be selected according to the preset code.
At least one second click-to-read identification portion 121 is printed on the second structural layer 12, wherein the second click-to-read identification portion 121 may be formed on the second structural layer 12 by the same printing process method as that of the first click-to-read identification portion 111, and the second click-to-read identification portion 121 also has a preset code, and can be scanned and identified by the click-to-read identification device.
As shown in fig. 1, in this embodiment, the first structural layer 11 and the second structural layer 12 are overlapped, where the first structural layer 11 is located on the upper layer, and the first click-to-read identification portion 111 on the first structural layer 11 and the second click-to-read identification portion 121 on the second structural layer 12 are at least partially overlapped or adjacent, as shown in fig. 4, the first click-to-read identification portion 111 and the second click-to-read identification portion 121 may be overlapped with each other in a staggered manner, or may be disposed to overlap with each other in an edge overlapping manner, or may be disposed to be adjacent to each other but not overlapped with each other. Meanwhile, the size of the first click recognition portion 111 is smaller than that of the second click recognition portion 121 in the present embodiment, wherein the specific shapes of the first click recognition portion 111 and the second click recognition portion 121 are developed in the subsequent embodiments.
The click-to-read printed matter 10 in this embodiment can realize accurate double-layer click-to-read, when the click-to-read printed matter 10 is scanned by the click-to-read identification device, the click-to-read identification device can distinguish between the first click-to-read identification portion 111 and the second click-to-read identification portion 121 according to the size of the first click-to-read identification portion 111, that is, when the click-to-read scanning device scans the position where the first click-to-read identification portion 111 and the second click-to-read identification portion 121 overlap or are adjacent, the first click-to-read identification portion 111 cannot completely shield the second click-to-read identification portion 121, and the click-to-read identification device can obtain the scanning results of the first click-to-read identification portion 111 and the second click-to-read identification portion 121 at the same time, that is, the audio corresponding to the first click-to-read identification portion 111 or the second click-to-read identification portion 121 can be played according to the preset priority order.
The working principle of the click-to-read identification device is that a digital signal (OID optical identification code) on a printed matter is sensed by a scanner (a detection contact) and other parts, and the scanner of the click-to-read identification device is an infrared reactor, for example, and can perform scanning induction on a certain area in front. The scanner has a preset scanning range, and the first click recognition part 111 and the second click recognition part 121 can be obtained simultaneously in the scanning range to distinguish and make a corresponding one of them, and preferably, the click recognition device is configured to respond to the second click recognition part 121 and play corresponding audio.
In practical application, the contents corresponding to the two-layer click-to-read identification parts of the upper layer and the lower layer are related to each other, so that in most designs, the two-layer click-to-read identification parts of the upper layer and the lower layer are close to each other or coincide with each other. In the product of partial double-layer point reading, the point reading identification parts of the upper layer and the lower layer cannot be effectively distinguished, and the situation that the error reading easily occurs or the point reading identification part of the lower layer cannot be identified, namely, the product is not a real double-layer point reading printed matter is caused. The size of the first click recognition portion 111 in this embodiment is smaller than that of the second click recognition portion 121, so that the consistency of the two click recognition portions is broken, and the click recognition device can distinguish the first click recognition portion 111 and the second click recognition portion 121 according to the recognition accuracy error, so as to realize the click through, that is, in the case that the first structural layer 11 covers the second structural layer 12, the information of the second click recognition portion 121 printed on the second structural layer 12 can be obtained.
In an embodiment of the present utility model, the first click recognition portion 111 and the second click recognition portion 121 are printed with a pigment containing carbon atoms, and accordingly, a scanner in the click recognition device can sense the pigment containing carbon atoms, such as an infrared sensor, and call corresponding audio after recognition.
According to a preferred embodiment of the present utility model, as shown in fig. 2A and 3A, the first click-to-read identification portion 111 printed on the first structural layer 11 is a plurality of consecutive pixels and has a preset code that can be identified and interpreted by the click-to-read identification device. The second click-to-read identification portion 121 printed on the same second structural layer 12 is also a plurality of continuous pixel dots and has a preset code. The number of pixel points in the first click recognition portion 111 is smaller than the number of pixel points in the second click recognition portion 121.
Specifically, in one embodiment of the present utility model, for example, the first click recognition portion 111 is a print specification size of 2×2, the second click recognition portion 121 is a print specification size of 4*4, for example, as shown in fig. 2A, and the first click recognition portion 111 prints a square pattern of 2×2 according to the accuracy unit of the printing device, where a preset code is provided. As shown in fig. 3A, the second click recognition unit 121 forms a pattern of the print specification size of 4*4. In a different embodiment of the present utility model, the first click recognition portion 111 may be designed to have a print specification size of 1*1, and the second click recognition portion 121 may be designed to have a print specification size of 2×2.
Of course, the first click recognition portion 111 and the second click recognition portion 121 may be designed as other shapes of print patterns, and the print patterns shown in fig. 2A and 3A are preferable in view of production cost and accuracy limitation of printing equipment. In this embodiment, when the first click-to-read identification portion 111 and the second click-to-read identification portion 121 are designed, designs with different dimensions are adopted, and then printing is performed according to the designs, so that the second click-to-read identification portion 121 can be acquired by the click-to-read identification device through the first structural layer 11.
According to other embodiments of the present utility model, as shown in fig. 2B and 3B, the first click recognition portion 111 is a print specification of an "L" arrangement, for example, a combination of three print units arranged at right angles. The second click-to-read identification unit 121 has a print specification of rectangular or square arrangement, for example, a print pattern composed of 2 x 2 print units shown in fig. 3B. Further, according to a preferred embodiment of the present utility model, wherein the "L" shape print specification of the first click recognition section 111 is obtained after removing the partially printed pixels on the basis of the rectangular or square arrangement of the print image.
In this embodiment, the second click-to-read identification portion 121 is printed according to the click-to-read identification portion in the conventional design, and the first click-to-read identification portion 111 can also be printed according to the click-to-read identification portion in the conventional design, and then the partially printed pixel points are removed by other means, so that an "L" shaped printed area can be obtained, specifically, for example, a part of the area in the first structural layer 11 is blocked so that a printed pattern cannot be formed at the position, or after the printing is completed, a part of the complete printed pattern is removed so as to form an "L" shaped printed area. In this embodiment, the design of the click-to-read identification portion is not required to be modified, the original design of the click-to-read identification portion can be adopted, and the first click-to-read identification portion 111 can be obtained by removing part of the printed pattern in the subsequent processing process.
In a preferred embodiment of the present utility model, the first and second structural layers 11 and 12 are provided so as to be capable of forming a space therebetween, and a spacer layer may be added between the first and second structural layers 11 and 12. The barrier layer can cover the second structural layer 12, and according to various embodiments of the present utility model, the barrier layer can be the same size as the second structural layer 12, or larger than the second structural layer 12, and can cover the entire area of the second structural layer 12. The first structural layer 11 and the second structural layer 12 are independent from each other under the influence of the isolating layer, and can be regarded as a single-layer click-to-read printed matter.
The barrier layer may also be arranged to be movable between the first structural layer 11 and the second structural layer 12 to cover different areas of the second structural layer 12. The first click recognition portion 111 and the second click recognition portion 121 in the present embodiment can be distinguished according to the size, but in the case of reading, the click recognition device can simultaneously perform correspondence only to one of the click recognition portions, and the first click recognition portion 111 may be prioritized according to a specific setting, the second click recognition portion 121 may be prioritized, or one of them may be selected by the user. The isolation layer can shield a part of the area of the second structural layer 12, and when the point-reading identification device is at the position corresponding to the isolation layer, only the first point-reading identification part 111 can be scanned. In practical use, a user can hold the isolation layer to move between the first structural layer 11 and the second structural layer 12, and shade the second click-to-read identification part 121 on the second structural layer 12, so that the corresponding relation between the click-to-read identification parts on the upper layer and the lower layer can be assisted to be memorized, for example, the audio corresponding to the first click-to-read identification part 111 on the first structural layer 11 is Chinese, the audio corresponding to the second click-to-read identification part 121 on the second structural layer 12 is English, and when bilingual corresponding memorization is carried out, the isolation layer can be utilized to shade the second structural layer 12, so that the click-to-read identification equipment can only scan the first click-to-read identification part 111 and correspond to the first click-to-read identification part 111.
Further, according to a preferred embodiment of the present utility model, the second structural layer 12 in the click print 10 is a transparent or translucent structure, and may be the same as the first structural layer 11. The click-to-read printed matter 10 further comprises a third structural layer, and at least one third click-to-read identification part is printed on the third structural layer. Wherein the second structural layer 12 and the third structural layer are overlapped, the second structural layer 12 is located on the upper layer, the second click-to-read identification portion 121 and the third click-to-read identification portion are at least partially overlapped or adjacent, and the size of the second click-to-read identification portion 121 is smaller than the size of the third click-to-read identification portion. Based on the same principle as in the foregoing embodiment, a third structural layer may be further disposed in the click-to-read printed matter 10 in a specific application, and three-layer printing and accurately distinguishable click-to-read areas are implemented, so that the application range and expansibility of the click-to-read printed matter 10 are further enriched.
According to a preferred embodiment of the present utility model, the first and second structural layers 11, 12 in the click-to-read printed matter 10 may be aligned and bound at one of the edge positions, the first and second structural layers 11, 12 being, for example, rectangular sheets bound at one of the aligned edge positions as a complete printed matter. In other embodiments, the first and second structural layers 11, 12 may also be formed in two sheets of sheets, respectively, and the two sheets are bound together as a single piece. Further, multiple structural layers, or groups of units consisting of a first structural layer 11 and a second structural layer 12, may be included in the completed printed matter.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (11)
1. A click-to-read print comprising:
the first structure layer is of a transparent or semitransparent structure, and at least one first click identification part is printed on the first structure layer;
the second structure layer is printed with at least one second click-to-read identification part;
the first structure layer and the second structure layer are overlapped up and down, the first structure layer is located on the upper layer, the first click-to-read identification portion and the second click-to-read identification portion are at least partially overlapped or adjacent, and the size of the first click-to-read identification portion is smaller than that of the second click-to-read identification portion.
2. The click-to-read print of claim 1, wherein the first click-to-read identification portion is a plurality of consecutive pixels printed on the first structural layer and has a preset code; the second click-to-read identification part is a plurality of continuous pixel points printed on the second structural layer and has preset codes; wherein the number of pixels in the first click-to-read identification portion is less than the number of pixels in the second click-to-read identification portion.
3. The click-to-read print of claim 2, wherein the first click-to-read identification is a print gauge size of 2 x 2 and the second click-to-read identification is a print gauge size of 4*4.
4. The click-to-read print of claim 2, wherein the first click-to-read identification portion is a print specification of an "L" arrangement and the second click-to-read identification portion is a print specification of a rectangular arrangement.
5. The click-to-read print of claim 4 wherein the print specification of the "L" shaped arrangement of the first click-to-read identification portion is obtained by removing partially printed pixels based on a rectangular arrangement of printed images.
6. The point-to-read print of claim 1, wherein the point-to-read print further comprises a barrier layer between the first structural layer and the second structural layer, the barrier layer being removable.
7. The point-and-read print of claim 6, wherein the barrier layer covers the entire extent of the second structural layer or is configured to be movable between the first structural layer and the second structural layer to cover different areas of the second structural layer.
8. The touch-and-talk print of claim 1, further comprising a third structural layer having at least one third touch-and-talk identification printed thereon; the second structure layer is a transparent or semitransparent structure;
the second structure layer and the third structure layer are overlapped up and down, the second structure layer is located on the upper layer, the second click-to-read identification portion and the third click-to-read identification portion are at least partially overlapped or adjacent, and the size of the second click-to-read identification portion is smaller than that of the third click-to-read identification portion.
9. The point-and-read print of any of claims 1-8, wherein the first and second structural layers are aligned at one of the edge locations and bound at the aligned edge; or the first structure layer and the second structure layer are respectively formed in two sheets of books, and the two sheets of books are bound into a whole.
10. The click-to-read print of any one of claims 1-8, wherein the first click-to-read identification portion and the second click-to-read identification portion are printed from a pigment containing carbon atoms; the point-reading identification device for cooperation with the point-reading printed matter is provided with an infrared sensor.
11. A click-to-read print comprising:
a first structural layer having a first click recognition portion, the first structural layer being a transparent or translucent structure;
a second structure layer having a second click-to-read identification portion, wherein the first structure layer and the second structure layer are overlapped one above the other, and the first structure layer is located at an upper layer; and
a removable spacer layer is located between the first structural layer and the second structural layer.
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CN202321793151.8U CN220639323U (en) | 2023-07-07 | 2023-07-07 | Click-to-read printed matter |
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CN202321793151.8U CN220639323U (en) | 2023-07-07 | 2023-07-07 | Click-to-read printed matter |
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CN220639323U true CN220639323U (en) | 2024-03-22 |
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CN202321793151.8U Active CN220639323U (en) | 2023-07-07 | 2023-07-07 | Click-to-read printed matter |
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