CN217671890U

CN217671890U - Security element

Info

Publication number: CN217671890U
Application number: CN202221811743.3U
Authority: CN
Inventors: 桑建新
Original assignee: Shanghai Guanzhong Optical Technology Co ltd
Current assignee: Shanghai Guanzhong Optical Technology Co ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-10-28
Anticipated expiration: 2032-07-14

Abstract

The utility model discloses an anti-fake element, anti-fake element includes base member and diffraction device, the perspective window has been seted up on the base member, the diffraction device sets up the base member surface is located the perspective window. The light is diffracted by the diffraction device, a diffraction light spot is formed on the other side of the base body through the perspective window, preset anti-counterfeiting information can be formed around the diffraction light spot and can be observed by human eyes, and the authenticity of the main body to be checked can be checked by the human eyes without other machines or equipment while the anti-counterfeiting performance of the base body is improved.

Description

Security element

Technical Field

The utility model relates to an anti-fake field has further related to an anti-fake component.

Background

Information identification cards have been increasingly used in people's daily lives as a proof of identity. With the increasing importance of identification cards, illegal activities of counterfeiting and changing identification cards are increasingly emerging, causing significant losses to cardholders and also to enterprises in units. Although the identification card structure and the function of receiving signals and sending specific information enable the identification card structure to have certain anti-counterfeiting capability, the anti-counterfeiting capability is low, and people can forge the identification card, so that the anti-counterfeiting function of the identification card needs to be further enhanced.

At present, the anti-counterfeiting function of the identification card is strengthened in various ways in the market, for example, a card surface is pasted with an anti-counterfeiting label or an anti-counterfeiting code, and the anti-counterfeiting measure needs to confirm whether the anti-counterfeiting label or the anti-counterfeiting code is correct or not by means of other supporting facilities, so that the checking is troublesome and the cost is high. Some people also print special anti-counterfeiting patterns on the card surface, and can directly check the anti-counterfeiting patterns through human eyes, but the anti-counterfeiting patterns are designed to be more complex in order to increase the non-replicability of the anti-counterfeiting patterns, so that the artificial checking is difficult.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an anti-fake element, anti-fake element has mainly adopted an optical diffraction device to strengthen the anti-fake function of identification card, makes the identification card can have multiple anti-fake function, reduces the inspection cost simultaneously, can inspect the true and false of required inspection main part through people's eye.

In order to achieve the above technical effects, an object of the present invention is to provide an anti-counterfeit element, including:

the transparent window is arranged on the base body;

the diffraction device is arranged on the surface of the substrate and is positioned at the window of the perspective window;

the light is diffracted by the diffraction device, a diffraction light spot is formed on the other side of the base body through the perspective window, preset anti-counterfeiting information can be formed around the diffraction light spot, and the anti-counterfeiting information can be observed by human eyes.

In some preferred embodiments, the diffraction device has a surface relief micro-nano structure, the step height of the micro-nano structure is 0.1mm to 1mm, and after light passes through the diffraction device, a diffracted pattern is finer.

In some preferred embodiments, the diffractive device comprises a binary optical micro-nano structure or an embossed hologram.

In some preferred embodiments, the encrypted information may be obtained from a point light source through a transparent window on the side where the diffraction device is disposed, or may be formed by diffraction after the diffraction device is irradiated with laser light, and may be projected on a receiving screen.

In some preferred embodiments, the diffractive device is disposed on both sides of the substrate, and the security information is viewable by viewing the diffractive device from either side.

In some preferred embodiments, the substrate is an identification card, and the identification card includes a multi-layer card body and a transparent protective layer covering both sides of the multi-layer card body.

In some preferred embodiments, the surface of the multilayer card body of the identification card is printed with card information, a winding is arranged inside the multilayer card body, and the transparent window is arranged to avoid the winding.

In some preferred embodiments, the identification card is embedded with a chip on a surface thereof, the chip includes a memory for storing user information or product information, and a reader for receiving and processing an external magnetic field signal and transmitting the user information or product information stored in the memory.

In some preferred embodiments, the diffractive device is mounted on the substrate by hot plastic compression.

In some preferred embodiments, the specific structure of the diffraction device is set by computer calculation and simulation.

Compared with the prior art, the utility model discloses one of following beneficial effect has at least:

1. the anti-counterfeiting element comprises a diffraction device and a perspective window, wherein the diffraction device has an anti-counterfeiting function. The light can generate diffraction effect after passing through the diffraction device, diffraction light spots are formed on the other side of the substrate through the perspective window, and preset anti-counterfeiting information can be formed around the diffraction light spots. Under the condition that the base body has a certain anti-counterfeiting function, the anti-counterfeiting element is adopted to enhance the original anti-counterfeiting capability of the base body, so that the base body has multiple anti-counterfeiting functions and is not easy to counterfeit.

2. The anti-counterfeiting information can be observed by human eyes. The anti-counterfeiting element can check whether the anti-counterfeiting information is correct or not only through human eyes without external facilities or devices, is simple to operate, is convenient and quick to check and verify, and reduces the cost of checking authenticity.

3. The diffraction device is provided with a surface relief micro-nano structure, the step height of the micro-nano structure is 0.1-1 mm, after light passes through the diffraction device, the diffracted pattern is finer without influencing the checking convenience, the diffraction device can contain more anti-counterfeiting information, the anti-counterfeiting degree is higher, and the diffraction device is more difficult to copy.

4. The specific structure of the diffraction device is set through computer calculation and simulation, the anti-counterfeiting information to be diffracted is set in advance through a computer, computer simulation is carried out, and the required structure of the diffraction device is calculated, so that the anti-counterfeiting element is more difficult to copy, and the reliability of the anti-counterfeiting element is improved.

Drawings

The above features, technical features, advantages and modes of realisation of the present invention will be further described in the following detailed description of preferred embodiments thereof, which is to be read in conjunction with the accompanying drawings.

FIG. 1 is a side view of the overall structure of one embodiment of the present invention;

FIG. 2 is a schematic diagram of the operation of one embodiment of the present invention;

FIG. 3 is a schematic diagram illustrating the operation of an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a preferred embodiment of the present invention;

fig. 5 is a top view of the structure of a preferred embodiment of the present invention;

FIG. 6 is a process diagram of a preferred embodiment of the present invention;

fig. 7 is a diagram of the process operation of a preferred embodiment of the present invention.

The reference numbers indicate:

a substrate 1, a first substrate surface 11, a second substrate surface 12,

the diffraction device 2, the see-through window 3,

the light source 41, the laser light 42,

the anti-counterfeiting information 5 is provided,

the reception screen 6 is arranged to receive the data,

the identification card 7, the winding 71, the chip 72, the multi-layer card body 73, the transparent protective layer 74,

a hot-pressing die 81, an upper laminated steel plate die 82, and a lower laminated steel plate die 83.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will refer to the accompanying drawings to describe specific embodiments of the present invention. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.

For the sake of simplicity, only the parts related to the utility model are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "a" means not only "only one of this but also a case of" more than one ".

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.

In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, in the description of the present application, the terms "first," "second," and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.

In an embodiment, referring to the attached fig. 1 of the specification, the anti-counterfeiting element provided by the present invention is illustrated, and includes a substrate 1 and a diffraction device 2, wherein a transparent window 3 is opened on the substrate 1, and the diffraction device 2 is disposed on the substrate surface 11 and located on the transparent window. The diffraction device 2 can be arranged on the first substrate surface 11 or the second substrate surface 12, the structure of the diffraction device 2 is specially designed, light is diffracted through the diffraction device 2, a diffraction light spot is formed on the other side of the substrate 1 through the perspective window, a preset anti-counterfeiting information 5 can be formed around the diffraction light spot, and the anti-counterfeiting information 5 can be observed by human eyes.

Wherein, anti-counterfeiting information 5 can be the pattern that designs in advance, also can be the characters that designs in advance, and anti-counterfeiting information 5's concrete form does not constitute the restriction of the utility model.

In a specific embodiment, referring to fig. 2 and fig. 3 of the specification, the preset anti-counterfeit information 5 can be obtained in two specific ways, one is that the point light source 41 is observed through the window, the light of the point light source 41 is diffracted through the diffraction device 2, and the diffracted light is received by human eyes, so that the anti-counterfeit information 5 diffracted by the point light source 41 can be observed. Alternatively, the diffraction device 2 is illuminated by a laser beam 42, the transmitted spot diffracts the encrypted information around the transmitted spot, and a receiving screen 6 is placed in front of the diffraction device to observe the encrypted information diffracted around the transmitted spot.

In this embodiment, the point light source 41 may be a common bulb in daily life, and the inspection of the anti-counterfeit element may be performed in the two manners at night or under the condition that light is not bright, so that the application range of the anti-counterfeit element is expanded, and the applicability of the anti-counterfeit element is improved.

In a preferred embodiment, the diffraction device 2 has a surface relief micro-nano structure, the height of the step of the micro-nano structure is 0.1mm to 1mm, light is diffracted to form a diffraction light spot through the surface relief micro-nano structure of the diffraction device 2, and because the height of the step of the micro-nano structure is 0.1mm to 1mm, characters or patterns formed by the diffraction light spot are finer, the contained anti-counterfeiting information is more than 5, and the difficulty of counterfeiting the anti-counterfeiting element is improved while the checking convenience is not influenced.

In a preferred embodiment, the diffraction device 2 is a binary optical element, which is a planar relief type phase-only diffraction optical element manufactured based on computer aided design and micron-scale processing technology, and can be made into a relief structure with multiple phase orders to obtain high diffraction efficiency.

In a preferred embodiment, the diffraction device 2 is arranged on two sides of the substrate 1, light can pass through the diffraction device 2 from any side, and the anti-counterfeiting information 5 can be observed from any side, so that the operation steps are further simplified, and the rapid checking and verification are facilitated. Meanwhile, the diffraction devices 2 on the two sides of the substrate 1 may be different, and the two diffraction devices 2 may play a superposition effect when light passes through, so that the formed anti-counterfeiting information 5 may contain more information.

In a preferred embodiment, referring to the description of fig. 4 and 5, the substrate 1 is an identification card 7, and the identification card 7 includes a multi-layer card body 73 and a transparent protective layer 74, wherein the transparent protective layer 74 covers both sides of the multi-layer card body 74.

Wherein, identification card 7 can be ordinary identification card, smart card, non-contact smart card, two interface smart cards, and identification card 7's specific application form does not constitute right the utility model discloses a restriction.

In a preferred embodiment, referring to the description of fig. 4 and fig. 5, the surface of the multi-layer card body 74 of the identification card is printed with card information, the winding 71 is arranged inside the multi-layer card body 74, and the transparent window 3 is arranged to avoid the winding 71, so that the identification card 7 does not affect the normal use of the identification card while increasing the anti-counterfeiting capability.

In a preferred embodiment, referring to fig. 4 and 5 of the specification, the identification card 7 is embedded with a chip 72 on the surface, the chip 72 includes a memory for storing user information or product information and a processor for receiving and processing an external magnetic field signal and transmitting the user information or product information stored in the memory. After the authenticity of the identification card 7 is checked, the authenticity of the identification card 7 and whether the identification card belongs to a holder of the identification card 7 can be further confirmed by reading the user information or the product information stored in the memory, so that the identification card has certain anti-counterfeiting capability besides the functions of storing and processing information.

In a preferred embodiment, referring to fig. 6 of the drawings, the diffractive device 2 is mounted on the substrate 1 by hot embossing, the mounting steps including:

s1, preparing a diffraction device 2 with a surface relief micro-nano structure.

And S2, metalizing the diffraction device 2 prepared in the S1 to prepare the metal diffraction device 2.

And S3, arranging the metal diffraction device 2 on the end face of the hot-pressing die 81.

And S4, heating the hot-pressing die head, pressing down the hot-pressing die head to the surface of the identification card 7, continuously applying pressure according to a certain pressure intensity, and then lifting the hot-pressing die head.

In the implementation mode, the used thermoplastic pressing manufacturing process is simple, the diffraction device anti-counterfeiting technology can be implemented in the conventional card manufacturing process, and the cost is low.

In a preferred embodiment, referring to fig. 7 of the specification, the specific mounting step of the diffraction device 2 on the substrate 1 may further be:

s1, preparing a laminated steel plate with a surface relief micro-nano structure diffraction device 2.

S2, placing the identification card 7 with the transparent window 2 between the upper laminated steel plate die 82 and the lower laminated steel plate die 83 in a laminated mode.

And S3, applying pressure to the upper laminated steel plate and the lower laminated steel plate to the surface of the identification card 7, heating to a certain pressure intensity, and continuously applying pressure for a certain time according to a preset pressure intensity.

And S4, opening the laminated steel plate after keeping a certain pressure to room temperature.

In the embodiment, the equipment for completing the S3 process is the card laminator, similarly, the method has simple manufacturing process, completes the implementation of the diffraction device anti-counterfeiting technology in the conventional card manufacturing process, and has low cost.

In a preferred embodiment, the specific structure of the diffraction device 2 is set by computer calculation and simulation. The anti-counterfeiting information 5 to be diffracted is set in advance through a computer, computer simulation is carried out, and the specific structure of the required diffraction device 2 is calculated.

It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A security element, comprising:

the device comprises a base body, a transparent window and a transparent window, wherein the base body is provided with the transparent window;

light is diffracted through the diffraction device, a diffraction light spot can be formed on the other side of the base body through the perspective window, preset anti-counterfeiting information can be formed around the diffraction light spot, and the anti-counterfeiting information can be observed by human eyes.

2. A security element as claimed in claim 1 in which the diffractive device has a surface relief micro-nano structure with a step height of 0.1mm to 1mm.

3. A security element as claimed in claim 1 in which the diffractive device comprises a binary optical micro-nano structure or an amplitude-type relief hologram.

4. A security element according to claim 1, characterized in that the security information is obtained from a point source of light through a viewing window on the side on which the diffraction device is arranged, or is formed by diffraction after the diffraction device is irradiated with laser light and can be projected onto a receiving screen.

5. A security element according to claim 1, wherein the diffractive device is provided on both sides of the substrate, the security information being observable when the diffractive device is viewed from either side.

6. The security element of claim 1 wherein the substrate is an identification card comprising a multi-layer card body and a transparent protective layer covering both sides of the multi-layer card body.

7. The security element of claim 6, wherein the identification card has a multi-layer card body with printed card information on a surface thereof, and a winding is disposed inside the multi-layer card body, and the transparent window is disposed to avoid the winding.

8. The security element of claim 6, wherein the identification card is embedded with a chip on a surface thereof, the chip comprises a memory for storing the user information or the product information, and a processor for receiving and processing the external magnetic field signal and transmitting the user information or the product information stored in the memory.

9. A security element according to claim 1, wherein the diffractive device is mounted on the substrate by hot-embossing.

10. A security element according to claim 1, wherein the specific structure of the diffractive device is set by computer calculation and simulation.