KR20160039074A - A Barcode Containing a Part Printed with Substance Fluoresced by Ultraviolet Light - Google Patents

A Barcode Containing a Part Printed with Substance Fluoresced by Ultraviolet Light Download PDF

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Publication number
KR20160039074A
KR20160039074A KR1020140131983A KR20140131983A KR20160039074A KR 20160039074 A KR20160039074 A KR 20160039074A KR 1020140131983 A KR1020140131983 A KR 1020140131983A KR 20140131983 A KR20140131983 A KR 20140131983A KR 20160039074 A KR20160039074 A KR 20160039074A
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KR
South Korea
Prior art keywords
fluorescent material
ultraviolet
light
fluorescent
wavelength
Prior art date
Application number
KR1020140131983A
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Korean (ko)
Inventor
최규진
Original Assignee
서울바이오시스 주식회사
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Priority to KR1020140131983A priority Critical patent/KR20160039074A/en
Publication of KR20160039074A publication Critical patent/KR20160039074A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
    • G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
    • G06K19/06046—Constructional details
    • G06K19/0614—Constructional details the marking being selective to wavelength, e.g. color barcode or barcodes only visible under UV or IR
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
    • G09F3/0294—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time where the change is not permanent, e.g. labels only readable under a special light, temperature indicating labels and the like

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

The present invention relates to a barcode which can include much information collectively in a small area by including a part displayed with a fluorescent material reacting to an ultraviolet ray in a specific wavelength band to raise a dimension, which can be represented in the barcode. The barcode includes: a part displayed with a first fluorescent material (21) for reacting to an ultraviolet ray (11) having a first ultraviolet ray wavelength to generate first fluorescence (21a); a part displayed with a second fluorescent material (22) for reacting to the ultraviolet ray (11) having the first ultraviolet ray wavelength to generate second fluorescence (22a); a part displayed with third fluorescent materials (23) for respectively reacting to the ultraviolet ray (11) having the first ultraviolet ray wavelength and an ultraviolet ray (12) having a second ultraviolet ray wavelength, which is not peripheral wavelengths of the first ultraviolet ray wavelength, to generate third fluorescence (23a); a part displayed with a fourth fluorescent material (24) for reacting to the ultraviolet ray (12) having the second ultraviolet ray wavelength to generate fourth fluorescence (24a); and/or a part displayed with a fifth fluorescent material (25) for reacting to the ultraviolet ray (12) having the second ultraviolet ray wavelength to generate fifth fluorescence (25a).

Description

[0001] The present invention relates to a bar code using a fluorescent material which reacts with ultraviolet rays,

The present invention relates to a bar code, and more particularly, to a bar code, which includes a portion indicated by a fluorescent material which reacts with ultraviolet rays of a specific wavelength band, so as to increase the dimension that can be displayed in a bar code, ≪ / RTI >

The currently used bar codes include a one-dimensional bar code represented by a black and white bar on a straight line and a two-dimensional bar code represented by black and white pixels on a plane (so-called QR code). The more information you have to put in the barcode, the more you need to increase it. As a result, 3D barcodes that measure brightness (brightness) for each pixel, and 3D barcodes that measure RGB indices for each pixel are now being developed beyond the 2D barcode.

 All of them can read the information contained in the barcode by illuminating the barcode in the region of the visible light, taking the image to be viewed and extracting the index in comparison with the reference marker.

However, as the amount of information to be included increases, the RGB index must be further subdivided, which is undesirable in that the camera for photographing the bar code must be more precise. The reason for this is that in order to read bar codes with subdivided indexes, it is necessary to have high-precision imaging equipment, which increases the equipment cost.

Therefore, there is a need to develop a barcode that increases the dimension of another viewpoint.

In addition, bar codes are an inadequate way to convey confidential information, because all of the information contained within is exposed. Therefore, the barcode can be used only for general purpose information to be utilized by anyone, and the field of use thereof is very limited.

Disclosure of Invention Technical Problem [8] The present invention has been devised to solve the problems of the prior art described above, and it is an object of the present invention to increase the capacity of information to be stored in a barcode, to read a plurality of information in stages, The present invention is directed to providing a barcode having a barcode.

According to an aspect of the present invention, there is provided a method of irradiating an ultraviolet ray of a specific wavelength region and exposing another dimension that can be displayed on a barcode to ultraviolet ray region by using a substance that fluoresces at a wavelength different from the ultraviolet ray wavelength The capacity of information that can be stored in the bar code can be greatly increased and the bar code can be displayed properly and various shooting methods can be varied so that different information is read according to the method, , A bar code is provided so that only the person who performs the method can read the information of the bar code.

Accordingly, the present invention provides a barcode including a portion indicated by the first fluorescent material 21 that generates the first fluorescent light 21a in response to the ultraviolet ray 11 having the first ultraviolet wavelength.

The wavelength of the first fluorescent light 21a may be included in any one of an ultraviolet region, a visible light region, and an infrared region.

A reference marker may be further included to quantify the brightness of the first fluorescence 21a to determine information.

The barcode may further include a portion indicated by a first color (41) representing a color (41a) in a visible light region when illuminating a visible light.

The present invention also relates to a method for producing a second fluorescent material (22a) which reacts with an ultraviolet ray (11) having a first ultraviolet wavelength and an ultraviolet ray (12) having a second ultraviolet wavelength not the peripheral wavelength of the first ultraviolet wavelength, 2 fluorescent material 22. The barcode is a barcode that includes a portion indicated by the reference numeral 2 of FIG.

The barcode may further include a portion indicated by the first fluorescent material 21 which reacts with the ultraviolet ray 11 having the first ultraviolet wavelength to generate the first fluorescent light 21a.

The first fluorescent material 21 may cause the first fluorescent material 21a to react with the ultraviolet ray 13 having a third ultraviolet wavelength that is not the peripheral wavelength of the first ultraviolet wavelength and the second ultraviolet wavelength.

The wavelengths of the first fluorescent light 21a and the second fluorescent light 22a may coincide with each other.

The wavelength of the first fluorescent light 21a is included in one of the ultraviolet region, the visible light region, and the infrared region, and the wavelength of the second fluorescent light 22b is the ultraviolet region, the visible light region, May be included in any one of the regions.

A reference marker may be further included to quantify the brightness of the first fluorescent light 21a to determine information, and to reference the reference marker and the brightness of the second fluorescent light 22a to determine information.

The barcode may further include a portion indicated by a first color (41) representing a color (41a) in a visible light region when illuminating a visible light.

The present invention also relates to a method for producing a fluorescent material that reacts with a portion indicated by a first fluorescent material (21) which reacts with an ultraviolet ray (11) having a first ultraviolet wavelength and generates a first fluorescent light (21a) And a portion indicated by a second fluorescent material 22 generating a second fluorescent light 22a, and the first fluorescent light 21a and the second fluorescent light 22a provide a barcode having different wavelengths.

A third fluorescent material 23 which reacts with an ultraviolet ray 11 having a first ultraviolet wavelength and an ultraviolet ray 12 having a second ultraviolet wavelength that is not a peripheral wavelength of the first ultraviolet wavelength and generates a third fluorescent light 23a, ) May be further included.

A portion indicated by the fourth fluorescent material 24 that generates the fourth fluorescent light 24a in response to the ultraviolet light 12 having the second ultraviolet wavelength and a portion indicated by the fourth fluorescent material 24 in response to the ultraviolet light 12 having the second ultraviolet wavelength, 25a, and the fourth fluorescent light 24a and the fifth fluorescent light 25a may have different wavelengths.

In addition, the present invention is characterized in that a base layer is represented by a first color (41) representing a hue (41a) in a visible light region when a visible light is irradiated, and a first fluorescent layer (21a) is formed in response to an ultraviolet ray (11) ) Of the first fluorescent material (21).

The present invention is also characterized in that a first layer is displayed by a first fluorescent material 21 which generates a first fluorescent light 21a in response to an ultraviolet ray 11 having a first ultraviolet wavelength, And a second fluorescent material 22 generating a second fluorescent light 22a.

The present invention is also characterized in that a first layer is displayed by a first fluorescent material 21 which generates a first fluorescent light 21a in response to an ultraviolet ray 11 having a first ultraviolet wavelength, The second fluorescent material 22 causing the second fluorescent light 22a is displayed as the second layer and the third fluorescent material 23 causing the third fluorescent light 23a in response to the second fluorescent light 22a is displayed as the third fluorescent material 22, And provides a barcode that includes a marked portion of the layer.

The ultraviolet light described above may be a UV LED light.

According to the bar code of the present invention, information capacity can be increased, information can be more intensively displayed on a small area, a plurality of information can be provided step by step, and secret information can be transmitted.

The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

1 to 8 are side sectional views showing bar codes of the first to eighth embodiments according to the present invention, respectively. The thickness of each display portion is very exaggerated in order to facilitate understanding, and there is practically no thickness.

It will be understood by those skilled in the art that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know.

In addition, the structure or configuration of any one of the embodiments described below may be applied to or replaced with the structure or configuration of another embodiment as required by a typical technician, or the configuration may be deleted or a different configuration may be added. It is self-evident.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[First Embodiment]

1 shows a bar code of a first embodiment according to the present invention.

As shown in FIG. 1, the barcode region has a portion denoted by the first fluorescent material 21. The first fluorescent material 21 has a property of causing the first fluorescent material 21a in response to the ultraviolet ray 11 having the first ultraviolet wavelength. Therefore, since the first fluorescent material 21 is not fluorescent and no information is displayed on the conventional visible light 30, in order to read such a bar code, ultraviolet rays having the first ultraviolet wavelength should be irradiated to confirm the information .

 Also, the wavelength of the first fluorescent light 21a is different from the first ultraviolet wavelength, and the wavelength of the first fluorescent light 21a may belong to the ultraviolet region, the visible light region, or the infrared region. Therefore, in order to read such a bar code, the information of the bar code can be confirmed only by using an apparatus capable of detecting and photographing an ultraviolet ray region, a visible ray region or an infrared ray region corresponding to the wavelength of the first fluorescence. If the first ultraviolet wavelength and the wavelength band of the first fluorescence 21a are unknown, the information of the corresponding bar code can not be confirmed. This is a good way to convey confidential information.

However, if the first fluorescent material 21 is applied at different thicknesses, there is a difference in the brightness of fluorescence in response to the ultraviolet ray 11 having the first ultraviolet wavelength. Therefore, It can be expressed more finely. When the barcode is implemented in this manner, the reference markers may be further included in the barcode so that the brightness of the first fluorescence 21a can be quantified to determine information.

[Second Embodiment]

Fig. 2 shows a bar code of a second embodiment according to the present invention. Hereinafter, other embodiments will be described within the scope of not overlapping with the first embodiment described above.

As shown in FIG. 2, the barcode region includes a portion indicated by the first fluorescent material 21 and a portion indicated by the first color 41 representing the color 41a under the visible light 30. The first fluorescent material 21 has a property of causing the first fluorescent material 21a in response to the ultraviolet ray 11 having the first ultraviolet wavelength. Accordingly, the first fluorescent material 21 is not fluorescent in the visible light 30, and only the color 41a is displayed (refer to FIG. 2 (c)).

When only the ultraviolet ray 11 having the first ultraviolet wavelength is irradiated to the bar code, only the first fluorescent material 21 generates the first fluorescence 21a to display information (refer to FIG. 2 (b)), 30 and the ultraviolet ray 11 are both irradiated, both the first fluorescence 21a and the hue 41a are displayed as information (refer to FIG. 2 (a)).

Here, if the first fluorescent light 21a and the hue 41a are both read, proper information can be extracted. If only the hue 41a is read, if the gouache information can be extracted, the ultraviolet rays 11 having the first ultraviolet wavelength 11 ) Should be examined with visible light to make sure that the correct information can be read by those who do not know the correct information.

In addition, since such a bar code can display different information depending on which light source is irradiated by one bar code, it is also possible to read information into different light sources for each logistics step and utilize other information step by step. Of course, bar codes can be used in various ways in various fields.

[Third Embodiment]

FIG. 3 shows a bar code of a third embodiment according to the present invention.

As shown in FIG. 3, the barcode region has a portion denoted by the second fluorescent material 22. The second fluorescent material 22 reacts with the ultraviolet light 11 having the first ultraviolet wavelength to generate the second fluorescent light 22a and the ultraviolet light 12 having the second ultraviolet wavelength not the peripheral wavelength of the first ultraviolet wavelength And causes a second fluorescent light 22a to be generated. Therefore, since no information is displayed because the second fluorescent material 22 is not fluorescent, the ultraviolet ray having the first ultraviolet wavelength or the second ultraviolet wavelength must be irradiated to read the barcode. Information can be confirmed.

 Further, the wavelength of the second fluorescent light 22a is different from the first ultraviolet wavelength and the second ultraviolet wavelength, and the wavelength of the second fluorescent light 22a may belong to the ultraviolet region, the visible light region, or the infrared region. Therefore, in order to read such a bar code, the information of the bar code can be confirmed only by using an apparatus capable of detecting and photographing the ultraviolet region, the visible region or the infrared region corresponding to the wavelength of the second fluorescent light. If the first ultraviolet wavelength or the second ultraviolet wavelength and the wavelength band of the second fluorescent light 22a are unknown, the information of the corresponding bar code can not be confirmed. This is a good way to convey confidential information.

On the other hand, if the thickness of the second fluorescent material 22 is different from that of the second fluorescent material 22, the brightness of fluorescence in response to ultraviolet rays having a first ultraviolet wavelength or a second ultraviolet wavelength is different. Information can be expressed more finely. When the barcode is implemented in this manner, the reference markers may be further included in the barcode so that the brightness of the second fluorescent light 22a can be quantified to determine information.

When the ultraviolet ray 11 having the first ultraviolet wavelength is irradiated and the ultraviolet ray 12 having the second ultraviolet wavelength is irradiated, the second fluorescent material 22 has a difference in brightness of the second fluorescent light 22a So that the same barcode can display different information according to the ultraviolet wavelength to be irradiated.

The barcode may further include a portion in which the first color 41 representing the color 41a is displayed under the visible light 30. This allows more information to be displayed in a wider variety of ways, and it can contain a greater amount of information.

 [Fourth Embodiment]

Fig. 4 shows a barcode of a fourth embodiment according to the present invention.

As shown in FIG. 4, the barcode region is composed of a portion denoted by the first fluorescent material 21 and a portion denoted by the second fluorescent material 22. The first fluorescent material 21 has a property of causing the first fluorescent material 21a in response to the ultraviolet ray 11 having the first ultraviolet wavelength. The second fluorescent material 22 reacts with the ultraviolet light 11 having the first ultraviolet wavelength to generate the second fluorescent light 22a and the ultraviolet light 12 having the second ultraviolet wavelength not the peripheral wavelength of the first ultraviolet wavelength And causes a second fluorescent light 22a to be generated. Therefore, since no information is displayed because the first fluorescent material and the second fluorescent material do not fluoresce in a typical visible light 30, in order to read such a bar code, ultraviolet rays having a first ultraviolet wavelength or a second ultraviolet wavelength are irradiated The information can be confirmed. If the ultraviolet ray 11 having the first ultraviolet wavelength is irradiated on the barcode, both the first fluorescence 21a and the second fluorescence 22a will be displayed. If the ultraviolet ray 12 having the second ultraviolet wavelength is irradiated, Only the fluorescence 22a will be displayed.

In addition, if the first fluorescent material 21 reacts with the ultraviolet ray 13 having the third ultraviolet wavelength 13, which is not the peripheral wavelength of the first ultraviolet wavelength and the second ultraviolet wavelength, If the ultraviolet ray 13 having the third ultraviolet wavelength is irradiated on the bar code, only the first fluorescence 21a will be displayed.

If the wavelengths of the first fluorescent light 21a and the second fluorescent light 22a are made to coincide with each other, the information of the barcode that can be sensed by one sensing camera is obtained when the ultraviolet light of the first ultraviolet wavelength is emitted, It can be different when the ultraviolet rays of wavelength are emitted.

If the wavelengths of the first fluorescence and the second fluorescence are included in different regions of the ultraviolet ray region, the visible ray region and the infrared ray region, it is possible to photograph the two regions with a camera capable of detecting both regions, You need to combine the images taken with the camera to see the full information of the barcode.

The reference markers and the reference markers may be used to determine the information by digitizing the brightness of the reference marker and the second fluorescent light 22a so that the brightness of the first fluorescent light 21a may be quantified to determine information, It is possible to increase the dimension of the bar code and to store more information by changing the brightness of the fluorescent light depending on the thickness and the type.

In addition, when the bar code is further configured to include a portion indicated by the first color 41 representing the color 41a in the visible light region when the visible light is irradiated, only the visible light 30 is irradiated with only the color 41a The first fluorescent light 21a and the second fluorescent light 22a appear when only the ultraviolet light 11 of the first ultraviolet wavelength is irradiated. When only the ultraviolet light 12 of the second ultraviolet wavelength is irradiated, the second fluorescent light 22a ) Can be displayed.

[Fifth Embodiment]

5 shows a bar code of a fifth embodiment according to the present invention.

As shown in FIG. 5, the barcode region is composed of a portion denoted by the first fluorescent material 21 and a portion denoted by the second fluorescent material 22. The first fluorescent material 21 has a property of causing the first fluorescent material 21a in response to the ultraviolet ray 11 having the first ultraviolet wavelength. The second fluorescent material 22 has a property of generating the second fluorescent light 22a in response to the ultraviolet ray 11 having the first ultraviolet wavelength. Therefore, since the first fluorescent material and the second fluorescent material are not fluorescent and no information is displayed in the conventional visible light 30, in order to read such a bar code, ultraviolet rays having the first ultraviolet wavelength should be irradiated to confirm the information . When the ultraviolet ray 11 having the first ultraviolet wavelength is irradiated on the bar code, both the first fluorescence 21a and the second fluorescence 22a will be displayed.

Here, the first fluorescent light 21a and the second fluorescent light 22a are configured to emit fluorescent light of different wavelengths, and when the kinds of fluorescent substances emitting fluorescence of different wavelengths in response to the ultraviolet light having the first ultraviolet wavelength are increased, It has an effect of increasing the dimension of the barcode.

In addition, in addition to this configuration, the barcode may react with the ultraviolet ray 11 having the first ultraviolet wavelength and the ultraviolet ray 12 having the second ultraviolet wavelength other than the peripheral wavelength of the first ultraviolet wavelength, The third fluorescent material 23, which causes the first fluorescent material 23 to emit light. In this case, when the ultraviolet ray 11 of the first ultraviolet wavelength is irradiated, both of the first fluorescence, the second fluorescence and the third fluorescence appear, and when the ultraviolet ray 12 of the second ultraviolet wavelength is irradiated, only the third fluorescent light appears .

Further, in addition to this configuration, the barcode may include a portion indicated by the fourth fluorescent material 24 that generates the fourth fluorescent light 24a in response to the ultraviolet light 12 having the second ultraviolet wavelength, and a portion of the ultraviolet light having the second ultraviolet wavelength, (25) that generates the fifth fluorescent light (25a) in response to the second fluorescent material (12). In addition, the fourth fluorescent light 24a and the fifth fluorescent light 25a have different wavelengths, so that more information can be stored. In this case, the first fluorescent light, the second fluorescent light and the third fluorescent light appear when the ultraviolet ray 11 of the first ultraviolet wavelength is irradiated. When the ultraviolet light 12 of the second ultraviolet wavelength is irradiated, the third fluorescent light and the fourth fluorescent light The fifth fluorescence appears.

[Sixth Embodiment]

6 shows a bar code of a sixth embodiment according to the present invention.

The barcode of the sixth embodiment is a barcode that displays a base layer in a first color 41 representing a hue 41a in a visible light region and a base layer in the form of a first fluorescent material 21a in response to an ultraviolet ray 11 having a first ultraviolet wavelength, 1 fluorescent material 21, as shown in Fig.

Referring to FIG. 6, a barcode is shown in which the first color 41 is first displayed and the first fluorescent material 21 is applied on the first color 41. In such a barcode, there may be a portion showing only the first color, a portion coated with only the first fluorescent material, and a portion coated with the first fluorescent material on the first color.

6 (a), only the first fluorescent light 21a is displayed. In the case of irradiating only the visible light 30, the barcode shown in FIG. 6 (b) Only the hue 41a appears at the portion shown in FIG. 6A. When both the visible ray 30 and the ultraviolet ray 11 are irradiated, as shown in FIG. 6C, only the first fluorescent material And a region where only the first color appears is only a color. In a region where the first fluorescent material is present on the first color, a mixed color of the first fluorescence and the hue appears.

Using this phenomenon, it is possible to display various information in various ways.

[Seventh Embodiment]

Fig. 7 shows a barcode of a seventh embodiment according to the present invention.

The barcode of the seventh embodiment is a bar code in which the first layer 21 is displayed with the first fluorescent material 21 that generates the first fluorescent light 21a in response to the ultraviolet ray 11 having the first ultraviolet wavelength, And the second layer is displayed with the second fluorescent material 22 that reacts to generate the second fluorescent light 22a. Therefore, such a barcode may include a portion in which only the first fluorescent material 21 is displayed, a portion in which only the second fluorescent material 22 is displayed, and a portion in which the second fluorescent material is displayed on the first fluorescent material.

When the ultraviolet ray 11 having the first ultraviolet wavelength is irradiated onto the barcode, as shown in Fig. 7A, the first fluorescent material 21a is generated in the portion where only the first fluorescent material 21 is displayed, Nothing appears on the portion marked only with the first fluorescent material 22 and the second fluorescent material on the first fluorescent material shows the first fluorescent material absorbed by the upper fluorescent material 22 And then the second fluorescent light 22a.

When the barcode is irradiated with a light beam having the wavelength of the first fluorescent light 21a, as shown in Fig. 7 (b), nothing appears at the portion where only the first fluorescent material 21 is displayed, The second fluorescent material 22a is formed in the portion where only the substance 22 is displayed and the portion where the second fluorescent material is displayed on the first fluorescent material is made the second fluorescent material 22a in the second fluorescent material 22 in the upper layer.

For example, the first fluorescent material 21a of the first fluorescent material 21, which has reacted with the ultraviolet ray 11 having the first ultraviolet wavelength, 1 fluorescence material 21 may have a thickness, a cross-section, or the like. In this case, it may be possible to utilize the reaction with another fluorescent material occurring laterally. In addition, when the thickness of the covered fluorescent material is very thin, a part of fluorescence in the lower layer may be transmitted without reacting with the fluorescent material in the upper layer. In this case, fluorescence in the lower layer transmitted through the upper layer and fluorescence There may be a mixture of fluorescence that re-emits light afterwards, and this structure may be utilized.

[Eighth Embodiment]

8 shows a bar code of an eighth embodiment according to the present invention.

The barcode of the eighth embodiment is characterized in that the first layer is displayed by the first fluorescent material 21 which generates the first fluorescent light 21a in response to the ultraviolet ray 11 having the first ultraviolet wavelength, The second fluorescent material 22 reacts to generate the second fluorescent material 22a and the third fluorescent material 23 reacts with the second fluorescent material 22a to generate the third fluorescent material 23a. The third layer is displayed. Therefore, in the barcode, only the first fluorescent material 21, only the second fluorescent material 22, only the third fluorescent material 23, the second fluorescent material on the first fluorescent material, A portion where the third fluorescent material is displayed on the first fluorescent material, a portion on which the second fluorescent material is displayed on the second fluorescent material, a portion where the second fluorescent material is displayed on the first fluorescent material, and the third fluorescent material is displayed on the first fluorescent material .

When the ultraviolet ray 11 having the first ultraviolet wavelength is irradiated onto the barcode, as shown in Fig. 8A, the first fluorescent material 21a is generated in the portion where only the first fluorescent material 21 is displayed, There is no reaction in the portion where only the second fluorescent material 22 is displayed and no reaction occurs in the portion where only the third fluorescent material 23 is displayed and the portion where the second fluorescent material is displayed on the first fluorescent material 1 fluorescent light 21a is absorbed by the second fluorescent material, the second fluorescent material emits the second fluorescent light 22a, and the portion where the third fluorescent material is displayed on the first fluorescent material is the first fluorescent material 21a and passes through the third fluorescent material, there is no reaction at the portion where the third fluorescent material is displayed on the second fluorescent material, the second fluorescent material is displayed on the first fluorescent material, and the third fluorescent material is again displayed thereon The marked portion indicates that the first fluorescence occurs in the first fluorescent material and is absorbed by the second fluorescent material, Which is absorbed by the third fluorescent material and causes the third fluorescent light 23a.

When the barcode is irradiated with a light beam having the wavelength of the first fluorescent light 21a, as shown in Fig. 8 (b), only the first fluorescent material 21 is not reacted, and the second fluorescent material The portion where only the second fluorescent material 22 is displayed is the second fluorescent material 22a, the portion where only the third fluorescent material 23 is displayed is not reacted, and the portion where the second fluorescent material is displayed on the first fluorescent material, The second fluorescent material emits the second fluorescent light 22a and the second fluorescent material emits the second fluorescent light to the portion where the third fluorescent material is displayed on the second fluorescent material, The third fluorescent material absorbs the third fluorescent material 23a. The second fluorescent material is displayed on the first fluorescent material, and the second fluorescent material appears on the second fluorescent material. 3 fluorescence after the absorption by the third fluorescent material.

When the barcode is irradiated with a light beam having the wavelength of the second fluorescent light 22a, as shown in Fig. 8 (c), the portion where only the first fluorescent material 21 is displayed is not reacted, The third fluorescent material 23a is generated in the portion where only the third fluorescent material 23 is displayed and the portion where the second fluorescent material is displayed on the first fluorescent material is not reacted, The portion where the third fluorescent material is displayed on the fluorescent material causes the third fluorescent material 23a to appear on the third fluorescent material and the portion on which the third fluorescent material is displayed on the second fluorescent material is the third fluorescent material 23a The second fluorescent material is displayed on the first fluorescent material, and the third fluorescent material 23a appears on the third fluorescent material.

Using this phenomenon, it is possible to display various information in various ways.

Therefore, when the barcode is constructed by combining the embodiments according to the present invention, one barcode may provide different information according to the irradiation method and the photographing means, and may be different from the barcode of the existing visible ray area It is possible to include much more information.

As the ultraviolet light source of the present invention, it is preferable to use UV LED light having a maximum peak at a specific wavelength and a very low intensity at a surrounding wavelength. Particularly, in manufacturing an LED, it is possible to fabricate a UV LED that emits light intensively with a maximum peak in a desired ultraviolet wavelength range, and is therefore well suited for such a bar code.

The foregoing embodiments have been described with emphasis on individual features, and it is also possible to produce barcodes that together include the individual features of these embodiments.

It is to be understood that the present invention is not limited to the embodiments and drawings disclosed herein, and that various modifications may be made by those skilled in the art without departing from the scope of the present invention.

11, 12 and 13: ultraviolet rays of different wavelengths
21 to 25: Fluorescent material that reacts to ultraviolet rays of a specific wavelength
21a ~ 25a: Fluorescence Fluorescence
30: Visible light
41: 1st color
41a: Color

Claims (16)

(21) in response to an ultraviolet ray (11) having a first ultraviolet wavelength and causing a first fluorescence (21a).
The method according to claim 1,
And a reference marker for determining the information by quantifying the brightness of the first fluorescent light 21a.
The method according to claim 1,
Wherein the barcode further comprises a portion indicated by a first color (41) indicative of a color (41a) in a visible light region when illuminating visible light.
A second fluorescent material 22 which reacts with ultraviolet rays 11 having a first ultraviolet wavelength and ultraviolet rays 12 having a second ultraviolet wavelength that is not the peripheral wavelength of the first ultraviolet wavelength, ) ≪ / RTI >
The method of claim 4,
The barcode further includes a portion indicated by a first fluorescent material (21) which reacts with ultraviolet rays (11) having a first ultraviolet wavelength to cause a first fluorescence (21a).
The method of claim 5,
The first fluorescent material (21) reacts with an ultraviolet ray (13) having a third ultraviolet wavelength not the peripheral wavelengths of the first ultraviolet wavelength and the second ultraviolet wavelength to cause the first fluorescent material (21a).
The method according to claim 5 or 6,
The wavelengths of the first fluorescence (21a) and the second fluorescence (22a) coincide with each other.
The method according to claim 5 or 6,
A reference marker and a reference marker for determining the information by digitizing the brightness of the second fluorescent light 22a so that the brightness of the first fluorescent light 21a can be quantified to determine information.
The method according to any one of claims 4 to 6,
Wherein the barcode further comprises a portion indicated by a first color (41) indicative of a color (41a) in a visible light region when illuminating visible light.
A portion indicated by the first fluorescent material 21 that generates the first fluorescent light 21a in response to the ultraviolet light 11 having the first ultraviolet wavelength and a portion indicated by the second fluorescent light 21 in response to the ultraviolet light 11 having the first ultraviolet wavelength, (22) that causes the first fluorescent material (22a)
Wherein the first fluorescent light 21a and the second fluorescent light 22a have different wavelengths.
The method of claim 10,
A third fluorescent material 23 which reacts with an ultraviolet ray 11 having a first ultraviolet wavelength and an ultraviolet ray 12 having a second ultraviolet wavelength that is not a peripheral wavelength of the first ultraviolet wavelength and generates a third fluorescent light 23a, ). ≪ / RTI >
The method of claim 11,
A portion indicated by the fourth fluorescent material 24 that generates the fourth fluorescent light 24a in response to the ultraviolet light 12 having the second ultraviolet wavelength and a portion indicated by the fourth fluorescent material 24 in response to the ultraviolet light 12 having the second ultraviolet wavelength, Further comprising a portion denoted by a fifth fluorescent material (25) which causes the first fluorescent material (25a)
And the fourth fluorescent light 24a and the fifth fluorescent light 25a have different wavelengths.
And a first color (41) representing a hue (41a) in a visible light region when the visible light is irradiated and a first color (41) representing the first fluorescent light (21a) in response to the ultraviolet light (11) A barcode comprising a portion of the fluorescent material (21) that represents the next layer.
The first layer is displayed by the first fluorescent material 21 that generates the first fluorescent light 21a in response to the ultraviolet light 11 having the first ultraviolet wavelength and the second fluorescent light 22a And the second layer is indicated by the second fluorescent material (22) which causes the second fluorescent material (22) to emit light.
The first layer is displayed by the first fluorescent material 21 that generates the first fluorescent light 21a in response to the ultraviolet light 11 having the first ultraviolet wavelength and the second fluorescent light 22a The second layer 22 is displayed with the second fluorescent material 22 generating the third fluorescent material 23a in response to the second fluorescent material 22a and the third fluorescent material 23 causing the third fluorescent material 23a in response to the second fluorescent material 22a Barcode included.
The method according to any one of claims 1 to 6 and claim 10,
Wherein the ultraviolet light is a UV LED light.
KR1020140131983A 2014-09-30 2014-09-30 A Barcode Containing a Part Printed with Substance Fluoresced by Ultraviolet Light KR20160039074A (en)

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KR1020140131983A KR20160039074A (en) 2014-09-30 2014-09-30 A Barcode Containing a Part Printed with Substance Fluoresced by Ultraviolet Light

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