TW200951825A - Identification information containing article, information identification device and information identification method - Google Patents

Abstract

The amount of identification information contained in an identification information containing article is increased, and detection of the identification information is facilitated, in an identification information containing article that contains identification information. A identification information containing article that comprises at least one fluorescent material with different peak wavelengths is configured such that the at least one fluorescent material contains a fluorescent spectral waveform corresponding to a percentage of at least one fluorescent material selected from prescribed multiple quantum dot fluorescent materials (fluorescent materials that emit fluorescence with peak wavelength ?1 to peak wavelength ?8) as the identification information.

Description

200951825 VI. Description of the Invention: [Technical Field] The present invention relates to an identification information containing information containing identification information, and specifically relates to a phosphor containing at least one type of different main emission wavelengths constituting the identification information. Identify information contained. Further, the present invention relates to an information identifying apparatus that recognizes identification information contained in an identification information containing item. Further, the present invention relates to an identification method for identifying an identification information contained in an identification information-containing substance. [Prior Art] Fluorescent substances are known to have different peak-to-peak wavelengths through their materials, and it is known that when a plurality of kinds of phosphors containing different materials are passed through, the light-emitting patterns from a plurality of types of phosphors are recognized. The information contained in the information provided by the information (see the following patent document η. In the past, the typical identification information contained in the information, from the viewpoint of the intensity of the fluorescence, etc., the phosphor material that can be used to provide the identification information is limited. And a few. For the limited material identification to give general identification information (for example, 100 types), the combination of the main illuminating wavelength selected by the material selection is used as the identification code, and must also be adjusted by The combination of the illuminating intensity of the main illuminating wavelength is used as the identification code. In addition, attention is paid to the fact that the luminescence of the luminescent substance is less changed depending on the method of manufacturing the phosphor or the manufacturing conditions, and the manufacturing method or manufacturing condition is also proposed. Identify the identification code of the information and use the identification information to increase the type of identification information (refer to the following [Patent Document 2] -5-200951825 [Patent Document 1] WO2003-58549 (Japanese Patent Application No. 2003-558787) [Patent Document 2] WO2004-25550 (Japanese Patent Application No. 2003-535874) Problem to be Solved] In the above-described typical identification information-containing material, a bulk phosphor having a quantum crystal effect (for example, a particle diameter of 10 nm or more) is used as the phosphor. In the conventional identification information content using the bulk phosphor, the selection range of the peak live broadcast combination (the selection range of the material) is narrow, and there is room for improvement from the viewpoint of the information amount of the identification information. The content of various kinds of bulk phosphors for identifying information-containing substances is a small amount, and there is a room for improvement from the viewpoint of the accuracy of recognition of the luminescence intensity of various peak-to-peak wavelengths. However, if the content is greatly increased, The amount of change's accuracy is improved, but on the other hand, it hinders the identification of the original color of the information, and the price of the product has risen sharply. From the practical point of view, it can be said. Further, in order to illuminate various peak-to-peak wavelengths at a time, it is necessary to use a light source that sniffs a continuous spectrum from a shortest wavelength to a longest wavelength corresponding to each peak wavelength of each of the plurality of types, for example, Xenon lamp or mercury lamp, etc. In addition, in recent years, quantum dot phosphors have been found to have quantum size effects. Quantum dot fluorescent systems have been known to have a quantum size effect, when their particle size becomes smaller than a specific size, continuity The ground displacement is longer than the wavelength of the main body junction -6-200951825. For example, if the spot phosphor is used, it can correspond to the change of the particle size and the length range. Moreover, the bulk fluorescent system is The increase is the wavelength at which the fluorescence yttrium and the peak ytterbium wavelength are the same in order to release the peak 値 wavelength (the main absorption point fluorescing system is substantially lighter than the body illuminating body, and the light having a shorter peak wavelength than the illuminating wavelength can be improved. Light. Therefore, the identification becomes a message while the amount of information related to the identification information of the present invention increases. Further, in the information recognition method according to the present invention, it is possible to easily and surely recognize the information contained in the information. [Means to solve the problem] ® In order to solve the above problems, this issue belongs to. At least one of the different peak-to-peak wavelengths, characterized in that the at least one type of phosphor is selected from a characteristic phosphor, and the waveform corresponding to the at least one type of the fluorescence spectrum is identified. Information is included. In addition, in order to solve the above problems, there is a selective wavelength of the absorption wavelength of the quantum holographic range of the GaAs material, and it is known that the wavelength must be irradiated, but the selectivity of the quantum absorption wavelength releases the peak wavelength. In the fluorescing content, the identification information is easily included, and the identification information of the fluorescent material containing the identification information of the identification device and the identification information of the information is included. The information recognition 200951825 device of the present invention belongs to a waveform for identifying a fluorescence of a fluorescence corresponding to at least one type of phosphor selected from a plurality of quantum dot phosphors of a specific plural type as identification information. The information recognition device including the identification information of the identification information-containing object includes a plurality of types of quantum dot phosphors that emit a selection target of the fluorescent material contained in at least one of the identification information-containing substances. The excitation light source of all the illuminating excitation light, q and the illumination light corresponding to the excitation light from the aforementioned excitation light source The identification information includes the light emitted by the object, the spectroscopic device that performs the splitting, and the light measuring device that measures the intensity of the emitted light that is split by the spectroscopic device, and the measurement result according to the wavelength, and the measurement result according to the light measuring device. And an identification information detecting means for detecting the identification information; wherein the excitation light source is used as the excitation light, and the shortest peak wavelength of the peak wavelength of the plurality of types of quantum dot phosphors is shorter, and q is substantially a single wavelength Light. Further, in order to solve the above-described problems, the information recognition method according to the present invention belongs to a spectrum for identifying a fluorescence of a blend corresponding to at least one type of phosphor selected from a specific plurality of types of quantum dot phosphors. A waveform identification method for identifying information including the identification information contained in the identification information, which is characterized by a plurality of selection objects of the phosphor -8 - 200951825 which are contained in at least one of the types of the identification information. The shortest peak wavelength of the peak wavelength of the quantum dot phosphor of the kind is short, and substantially the excitation light of a single wavelength is irradiated to the identification information containing substance, so that all of the at least one type of phosphor emits light 9 The emitted light from the identification information-containing material is split, and the respective wavelength intensities of the emitted light of the split light are measured, and the identification information is detected based on the measurement results of the respective wavelength intensities. [Effects of the Invention] In the case of the identification information-containing material of the present invention, the phosphor constituting the identification information is arbitrarily fluorescing the peak wavelength in a specific range according to the control of the particle diameter. In the case of a body, compared with the case of using a bulk phosphor, the degree of freedom in the selection of the peak-to-peak wavelength is increased, so that the amount of information for identifying information can be increased. Further, when a quantum dot fluorescent material is used, the fluorescence selectivity of the absorption wavelength is relaxed compared to the case of using the bulk phosphor, and various phosphors constituting the identification information can be easily and surely emitted at one time. And easy to detect identification information. Thereby, it is also possible to easily and surely perform the authenticity determination or the like of the identification information content based on the identification information. For the information recognition apparatus according to the present invention, for example, it is possible to identify the identification information corresponding to the blending of the quantum dot phosphors, and it is not necessary to identify the identification information corresponding to the blending of the bulk phosphors. The light source that emits light in the spectrum or the plurality of excitation light sources corresponding to the various body phosphors can be simplified in configuration, particularly the configuration of the excitation light source. In addition, for the case of the amount of -9-200951825 sub-point phosphor, compared with the case of the bulk phosphor, due to the selection of the absorption wavelength of the mitigating phosphor, for example, various quantum dots which constitute the identification information can be emitted. The shortest peak wavelength in the phosphor is a short wavelength light, and a light source that emits light not only in a continuous spectrum but also substantially emits light of a single wavelength can be exemplified. Further, it is possible to easily and surely emit various kinds of phosphors constituting the identification information at one time, and to easily detect the identification information. By this, it is also possible to easily and surely perform the authenticity determination of the identification information content based on the identification information. @ For the information recognition method according to the present invention, for example, the identification information corresponding to the blending of the quantum dot phosphors can be identified, and the selectivity of the absorption wavelength of the phosphor is alleviated as compared with the case of the bulk phosphor. It is not necessary to use the continuous spectrum of excitation light, or a plurality of types of excitation light corresponding to different wavelengths of various bulk phosphors, to identify the information by illumination, as in the case of identifying the identification information corresponding to the blending of the bulk phosphors. When the shortest peak wavelength of each of the quantum dot phosphors is short and substantially a single wavelength of light, the identification information can be easily and surely detected. As a result, it is possible to easily and surely determine the authenticity of the identification information-containing material according to the identification information. [Embodiment] The best mode of the identification information content, the information recognition apparatus, and the information identification method of the present invention will be described. Hereinafter, the configuration of the present invention will be described, and the specific configuration will be described with reference to the drawings. The identification information-containing material of the present invention belongs to a fluorescent material containing at least one type of fluorescent light of different peaks & -10-200951825, characterized in that at least one of the aforementioned fluorescent systems is selected from a specific one. A plurality of types of quantum dot phosphors are included as identification information corresponding to the spectral waveform of the fluorescence of the at least one type of phosphor. Here, the "peak wavelength" means the wavelength of the fluorescence of the maximum migration intensity released from the phosphor. Further, "at least one type of phosphor" means that, in the case where the type of the phosphor is plural, at least one of the material and the particle diameter is different from the quantum dot fluorescent source. Further, "quantum dot phosphor" refers to an ultrafine particle having an extremely small particle diameter in which a quantum size effect is found. The material constituting the quantum dot phosphor is, for example, a semiconductor material. The size index of the quantum dot phosphor is based on the particle size, but it does not mean that the quantum dot phosphor is a complete sphere, but may be a case where the large sphere is a sphere or a large cube is a cube or other shape. Happening. For example, in the case where the particle diameter of the quantum dot phosphor is 6 nm, it means that the minimum diameter of the spherical surface other than the quantum dot phosphor is 6 nm. In addition, the particle size system may also include a manufacturing error of 6. With the ®, the particle size of 6 nm means that the particle size of the quantum dot phosphor is in the range of (6 ± < 5 ) nm. In addition, the "specific plural type of quantum dot phosphor" that is blended with the possibility of identifying the information-containing material may be a composition including only quantum dot phosphors formed of the same substance, or may be The composition of a quantum dot phosphor composed of different substances. In the case of a quantum dot phosphor in which only a plurality of types of quantum dot phosphors are formed of the same substance, the particle diameters of the quantum dot phosphors are different from each other. For a quantum dot phosphor containing a specific plural type of quantum dot phosphor, which is composed of different substances, the particle size of the quantum -11 - 200951825 point phosphor formed by the same substance is different from each other. However, if the materials are different, the particle size of the quantum dot phosphors may be the same only when the peak wavelengths are different. Further, "provisioning" means a type of quantum dot phosphor selected from a specific plurality of types of quantum dot phosphors or a content thereof or a combination thereof. Specifically, the difference in the formulation may be recognized only by the difference in the type of the selected quantum dot phosphor, and also by the combination of the type of the selected quantum dot phosphor and the content of the species. Identify them by differences. The identification information contains a carrier containing a carrier and a quantum dot phosphor held on the carrier. The carrier system may be a solid or a viscous body or a liquid. Specifically, the identification information-containing material includes, for example, a cured resin which is a carrier, or a member or film which is formed by a quantum dot phosphor which is detached and dispersed, and is contained as a carrier. a chemical fiber and a wire or cloth or paper which is dispersed and fixed to the quantum dot phosphor of the chemical fiber, and contains a plurality of fibers as a carrier and a line or cloth or paper which disperses the quantum dot phosphor between the fibers. And an inkjet or coating or paper or coating agent or medicament or fuel liquid containing a viscous body or liquid as a carrier and a quantum dot phosphor that is freely maintained therein. Further, the identification information-containing material system can be exemplified as the sealing material of the film-forming adhesive layer described above. Further, as the identification information-containing material, any member including a solid as a carrier and a film that disperses solids in a solid quantum dot phosphor is formed, and specifically, the above-described inkjet or the above-mentioned paint or The above coating remembers the cured film, or the member of the dried film, and any member to which the above sealing material is attached. Examples of the type of the resin that functions as the carrier of the identification information-containing material include, for example, acrylonitrile-butadiene-styrene (AB S ) 200951825 resin, polyamine (PA) resin, and poly-pair. Butylene phthalate (ΡΒΤ) resin, polyacetal (POM) resin, polyoxyxylene (ΡΡΕ) resin, polyethylene terephthalate (PET) resin, polyphenylene sulfide (PPS) resin , polyacrylate (PAR) resin, polystyrene (PS) resin, acrylonitrile styrene (AS) resin, polycarbonate (PC) resin, fluorine (FR) resin, polyester elastomer (TPEE) resin, A liquid crystal polymer (LCP) resin, a special engineering plastic (SEp) resin, and a composite compound (alloy) of such a conjugated polymer. It is preferable that the identification information contains a component which is formed in at least a part of the shape of various devices. In this case, it is easy to identify the identification/information. Specifically, as the device member, for example, a person who forms an outer shape of the control device (the surface cover of the display lamp, the surface cover of the illumination device, the operation button or the body of the push button switch, the frame of the relay, and the frame of the timer) The socket for the body, the relay or the timer, the frame of the terminal block, the frame of the sensor using the photoelectric element, the frame of the machine that outputs the digital or analog signal, the frame of the wiring device for the wiring, and the power supply device The frame, the frame of the display, etc.), the frame of the home appliance, the lighting cover of the car or the locomotive. In addition, the identification information containing system can also be used for the use of high-end goods (apparel, clothing) A symbol or a label of an accessory, a bag, a shoe, a clothing item, a watch, a gemstone, etc. As a semiconductor substance constituting a quantum dot phosphor, for example, CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, HgS, g·ΐ 化合物 compound semiconductor materials such as HgSe and HgTe, III-V compound semiconductor materials such as GaN, GaP, GaAs, InP, InAs, etc., I-III-VI-13- 20 a compound semiconductor material of a chalcopyrite structure formed by the elements of 0951825, and a mixed crystal semiconductor material of the same. The compound of the chalcopyrite structure formed by the elements of the group I-III-VI may also be a general Any of the known structures includes, in particular, a group in which a group I element is selected from the group consisting of Cu and Ag, a group III element selected from the group consisting of In, Ga, and A1, and a group IV element selected from the group IV element. A compound of at least one of the groups of S, Se, and Te is preferable. In the case of a quantum dot phosphor, the constituent material of the phosphor is a semiconductor without special specification. Substance _ Here, the characteristics of the quantum dot phosphor are briefly described. The quantum dot fluorescent system corresponds to the absorption of the excitation light, and the phosphor having the shortest wavelength of the excitation light and having a long wavelength can be used. Specifically, the absorption of the excitation light corresponding to the band gap energy of the quantum dot phosphor is high energy, and the wavelength corresponding to the band gap energy of the quantum dot phosphor is released as the fluorescence of the peak wavelength. , this glow gap is in the spectrum The peak-to-peak wavelength of the large Gaussian distribution shape with the peak-to-peak wavelength as the center is formed. The quantum dot fluorescent system is based on the change of the particles for the discovery of the ultra-fine particles of the quantum size effect, and the band gap energy (conducting band The difference between the minimum energy level of the electron and the maximum energy level of the mat of the valence band: the band gap) produces a change, that is, 'even if it is made of the same substance, such as a change in particle size, the emitted fluorescence The peak wavelength is also changed. The larger the particle size, the smaller the band gap energy becomes, the smaller the particle size is, and the smaller the particle size is, the band gap energy becomes larger and the peak wavelength becomes shorter. However, for at least one direction, the phosphor is not quantized, for example, for the case of bulk phosphors, even if the size of the particle size of the quantum size effect is not found, the size changes 'band gap energy-14 - 200951825 There is no change in the substance. Further, in the quantum dot phosphor, the energy level of the electrons in the valence band and the energy level of the electrons in the conduction band are different from those in the bulk phosphor, and the energy bits dispersed in order to obtain the energy level retraction release The dispersion of the spectrum of the fluorescence corresponding to the peak wavelength is reduced. In particular, the higher the accuracy of the particle size of the quantum dot phosphor, the greater the effect. However, the intensity of the fluorescence can be controlled by the amount of the phosphor. Moreover, in the quantum dot phosphor, the selective absorption characteristics are not shown as the bulk phosphor, and if the wavelength is shorter than the peak wavelength, the absorption is good, and the peak wavelength is released. Fluorescent. As a technique for producing a quantum dot phosphor having a high-definition particle size control, for example, a size selective photolithography method can be mentioned. In the case of using the size selective photolithography method, the peak wavelength of the fluorescence emitted from the quantum dot phosphor can be controlled in units of several nm (error of 1 nm or less). Here, the size selective photolithography method will be briefly described. The size selective photolithography method is a method in which a quantum dot phosphor is produced by a known method in advance, and a quantum dot phosphor group having a wide particle size distribution produced therein is irradiated in a dissolved oxygen atmosphere. monochromatic light. In order to absorb light having a wide wavelength band of a band gap energy or more, the quantum dot fluorescent system is used as a light excitation for a case where the band gap energy is smaller than the wavelength corresponding to the wavelength of the monochromatic light. At this time, the composition of the quantum dot phosphor which is photoexcited can be made into a light dissolver by appropriately controlling the solution conditions. Through the dissolution of the light, the particle size of the quantum dot phosphor is reduced, and the band gap energy of the quantum dot phosphor is increased. The reaction is stopped when the band gap energy of the quantum dot phosphor exceeds the energy corresponding to the wavelength of the irradiated light. Thereby, the particle diameter of the quantum dot -15-200951825 phosphor can be aggregated to a specific particle diameter depending on the wavelength of the monochromatic light to be irradiated. As a fluorescent body that recognizes at least one of the information-containing substances, the type of the quantum dot phosphor to be finally contained is, for example, a type, and there are a plurality of types of "others" for a specific plural type of quantum dot fluorescent light. The body is a quantum dot phosphor composed of different substances, such as a quantum dot phosphor composed of the same substance, and a quantum dot phosphor composed of different substances. Happening. However, the identification information may include a phosphor other than the quantum dot phosphor forming the identification information. The identification information system may also identify the fluorescence of the individual peak wavelengths corresponding to the type of the quantum dot phosphor that forms the spectral waveform of the fluorescence as a unit, or may include the individual peak wavelengths of the complex number. The composite waveform (partial spectrum) of the fluorescence is identified as a unit, and the entire waveform (the entire spectrum) of the fluorescence containing all of the individual peak wavelengths can be identified as a unit. As the identification code (q identification element) for distinguishing the identification information from each other, for example, the intensity of each peak wavelength corresponding to a specific plural type of quantum dot phosphor (2 値 or more 値 determination) is given. The presence or absence of each fluorescence of each peak-to-peak wavelength of a plurality of types of quantum dot phosphors (2値 judgment), and the relative fluorescence of the peak-to-peak wavelength of the fluorescence of each peak-to-peak wavelength Intensity (2 値 judgment or 3 値 judgment), the position of the peak 値 wavelength in a specific wavelength range (2 値 or more 値 judgment), the amount of fluorescence of various peak 値 wavelengths in a specific wavelength range ( 2値 or more judgments), the width of a part of the spectrum in a specific wavelength range is -16,518,518 degrees (2 値 or more 値 judgment). It is preferable that the quantum dot phosphor of at least a part of the plurality of types of quantum dot phosphors is composed of particles of the same material having different particle diameters. According to this configuration, the type of material material forming the quantum dot fluorescent material can be reduced, and in order to produce a quantum dot phosphor having a different peak-to-peak wavelength, the information-containing substance can be identified and the identification information can be easily included. The identification information is such that the fluorescence intensity at each peak wavelength of the plurality of types of quantum dot phosphors is greater than or equal to a specific intensity for a specific excitation light, and is preferably included as an identification code. . Here, it is also possible to formulate at least a part of the quantum dot phosphor of a specific plurality of types of quantum dot phosphors, and to configure other quantum dot phosphors, and also to design a specific plural kind of quantum. A part of the quantum dot phosphor of the point phosphor is formulated so as to have a specific emission intensity or higher, and a part of the quantum dot phosphor is formulated to have a specific non-luminous intensity. Composition. According to this configuration, the detection information can be easily detected by detecting the luminous intensity of each of the peak-to-peak wavelengths of the plurality of types of quantum dot phosphors. The identification information is such that the fluorescence intensity at each peak wavelength of the plurality of types of quantum dot phosphors is any intensity range of three or more specific intensity ranges for the specific excitation light. The composition contained for the identification code is preferably. According to this configuration, since the identification of the fluorescent light passing through the respective peaks is increased, the amount of information for identifying the information can be increased. The identification information is a fluorescence intensity at a peak wavelength of -17-200951825 of the plurality of types of quantum dot phosphors, and whether the specific excitation light exceeds a specific complex intensity exceeding a range of intensity for a specific excitation light. Any range of the range of intensity is preferably included as an identification code. According to this configuration, when the fluorescence is detected for each peak wavelength, the readability of the hidden code can be improved. Further, in the case where the intensity range of the complex number is three or more, the amount of information for identifying the information can be increased in order to increase the amount of fluorescence of the fluorescent light passing through each peak wavelength. It is preferable that the peak-to-peak wavelength of the plurality of types of quantum dot phosphors is a specific wave length interval. Here, for a specific wavelength interval, a wavelength range of one wavelength range, for example, 380 nm to 500 nm, a wavelength interval of a peak-to-peak wavelength of a plurality of types of quantum dot phosphors may be exemplified, or The wavelength range of the continuity, the wavelength interval of the peak-to-peak wavelength of the plurality of types of quantum dot phosphors is configured to be longer or shorter corresponding to the wavelength thereof, or is included in the wavelength range of the complex as isolation, for example The wavelength interval of the peak wavelength of the quantum dot phosphor in the wavelength range of 380 nm to 500 nm and the wavelength range of 650 nm to 780 nm is a certain composition, or a quantum dot phosphor included in each wavelength range The wavelength interval of the peak-to-peak wavelength is a configuration in which the wavelength interval becomes longer or shorter corresponding to the wavelength thereof. However, in the case of dispersion in the complex wavelength range, the wavelength interval may be completely different for each wavelength range in the respective wavelength ranges, or may be partially the same, or may be identical. . According to this configuration, the advantage of arbitrarily changing the peak-to-peak wavelength can be utilized to the maximum by the control of the particle diameter. The peak wavelengths of the plurality of types of quantum dot phosphors are in a specific wavelength range of isolation from -18 to 200951825, and it is preferable that the respective wavelength ranges are substantially constant wavelength intervals. Here, "substantially a certain wavelength interval" means that the wavelength interval of each wavelength range is assumed to be the same for the purpose of "substantially constant", and is not limited to a completely constant case. The production error of the phosphor, etc., is not entirely a certain case. If it is configured for this purpose, it is possible to more easily and accurately detect part of the information of the identification information of each wavelength range. The wavelength spacing may also be identical for each wavelength range, or may be the same or may be identical. In addition, the wavelength interval may be an interval in which the fluorescence of two peaks which are adjacent to each other is formed as a waveform having only one peak ,, or may be formed at the front end portion to have two peaks. The interval of the waveform may be an interval of forming a waveform having two peaks which are substantially not coincident. Fluorescence of a straight wavelength adjacent to the peak is a wavelength interval in which a waveform having two peaks is formed at the tip end portion, and for example, a half-turn width of fluorescence of a single peak straight wavelength (FWHM: at maximum 値) The full width of the 1⁄2 ❹ intensity is wide, and the width of the 1/10th of the fluorescence of the peak wavelength (FWTM: the full width of the 1/10th of the maximum 値) is a narrow interval. Further, the wavelength interval between the two peaks which are substantially non-overlapping, in which the fluorescent light having a straight wavelength adjacent to the peak is formed, is, for example, a width larger than 1/1 萤 of the fluorescence of the peak wavelength. interval. It is preferable that the peak-to-peak wavelength of the plurality of types of quantum dot phosphors is substantially a constant wavelength interval. According to this configuration, the entire identification information can be detected more easily and with high precision. Between the peak wavelengths of the plurality of types of quantum dot phosphors -19-200951825, the fluorescence is substantially non-coincident. According to the above configuration, the fluorescent light having different peak-to-peak wavelengths is substantially not overlapped, and the identification information can be easily detected. However, the "substantially non-coincidence" of the fluorescent light is not limited to the case of not completely overlapping, and may be a configuration in which the edge portions of the fluorescent light are overlapped, for example, as described above, the fluorescence of two adjacent peak wavelengths. The interval is 1/10 of the width of the fluorescence of the peak wavelength, which is the interval between the widths ^

Composition. For this purpose, the fluorescence of the peak-to-peak wavelength of the various quantum dot phosphors constituting the identification information is substantially not coincident, and the detection of the identification information is performed, even if the peaks of the peak wavelengths are not separated from the spectrum. Fluorescence separation analysis of light (peak separation analysis) is also possible because it is extremely easy to detect identification information.

The identification information is such that the width of a part of the spectral range of each of the specific plurality of wavelength ranges from the fluorescence of the at least one type of phosphor of the specific excitation light is a width range of any of a plurality of width ranges. The composition contained for the identification code is preferably. Here, the "width of the partial spectrum" may be, for example, a half-width of a partial spectrum or a width corresponding to a specific strong U degree. By configuring for this, it is possible to increase the area of the identification 値 in a single wavelength range or to reduce the reproducibility of the partial spectrum via the imitation. The information identifying apparatus according to the present invention is an apparatus for identifying information relating to the identification information content of the present invention, comprising an excitation light source, and a release of the identification information containing material from the irradiation light corresponding to the excitation light from the excitation light source. A spectroscopic device for splitting light, a light measuring device for measuring the intensity of light emitted by the spectroscopic device, and a wavelength measuring device for detecting the identification information according to the measurement result by the photo measuring device. -20-200951825 testing method. However, the spectroscopic device, the photometric device, and the identification information detecting means may be the same as any of the known configurations. The excitation light source is used as excitation light to emit light having a short peak-to-peak wavelength among the peak-to-peak wavelengths of a plurality of types of quantum dot phosphors and having a substantially single wavelength. Here, the "substantially single-wavelength light" is not limited to the light having the wavelength of the peak wavelength (light having a specific spectrum (large Gaussian distribution)), and may be a wavelength containing peaks and peaks. A small amount of light with different wavelengths φ. However, it does not mean a light containing a spectrum having a wide range of continuity such as a xenon lamp. Examples of the excitation light source include an LED or a semiconductor laser. Further, it is preferable that the excitation light source emits light of a wavelength close to the ultraviolet range, and that light of a wavelength of the ultraviolet range is more preferable. In this case, since the dependence on the material of the phosphor or the particle diameter of the phosphor is reduced, the phosphor of the peak wavelength can be released from various quantum dot phosphors. The method for identifying information according to the present invention is a method for identifying identification information contained in the φ identification information-containing material of the present invention, wherein 'the light-emitting step of the phosphor contained in at least one of the types of the identification information-containing substance, The intensity of the light emitted from the identification information-containing material is split (the spectroscopic step), and the intensity of the light to be split is measured by the wavelength (light measurement step), and the detection is detected based on the measured measurement result of the measured light. Information (identification information detecting step) ° However, the 'split device' light measuring device and the identification information detecting means can be the same as any known method. In the illuminating step, a peak of a plurality of types of quantum dot phosphors is emitted 値 -21 - 200951825 The shortest peak wavelength of the wavelength is short and substantially a single wavelength of light is used to identify the information contained. However, the phosphor constituting the identification information is a quantum dot fluorescent light, and even a substantially single wavelength excitation light can emit a fluorescent light having a longer peak wavelength than the excitation light. As a result, all of the phosphors included in at least one of the identification information-containing substances emit light, and the intensity of the wavelength of the emitted light is selectively measured, and the selected object corresponding to the at least one type of the phosphor is selectively measured. It is preferable that the intensity of each peak wavelength of the plural Q-type quantum dot phosphor is formed. If it is configured for this purpose, it is easier to detect the identification information because only the intensity of the necessary wavelength is detected for the detection of the identification information. Here, the identification information content, the information recognition apparatus, and the information identification method according to the present invention will be specifically described with reference to the drawings. The member of the present embodiment (one of the [identification information contents]) is composed of the same substance, and includes at least eight types of quantum dot phosphors having different peak-to-peak wavelengths from different particle diameters. A resin composition of a quantum dot-point phosphor is a hidden code (a type of [identification information]) for the component to be blended via eight types of quantum dot phosphors. The particle diameters (D1 to D8) of the eight types of quantum dot phosphors are such peak wavelengths (in 1 to λ8: λ1 < Λ 2 < Λ 3 < λ4 < λ5 < λ6 < λ 7 < λ8) are mutually equal Interval, that is, satisfying λ2-λ 1= λ3-Α2= again 4-in 3 = λ 5-λ 4= λ 6-λ 5 = into 7-λ 6= λ 8-λ 7=2d (number of turns) ) to adjust. The detection of hidden codes is based on 8 wavelength ranges ( R1-R8 : λ ld^Rl < λ 1+d' λ 2-d ^ R2 < λ 2 + d ' λ 3-d -22- 200951825 ^ R3 < λ 3 + d ' λ 4-d ^ R4 < λ 4 + d ' A5-d^R5 < A5+d , λ 6-d ^ R6 < λ 6 + d > λ 7-d ^ R7 < λ 7 + d ' λ 8-d ^ R8 <;l8+d) The intensity of the fluorescence, and the identification information is judged. First, a description will be given of a component containing a hidden code. Fig. 1 is a perspective view schematically showing an example of a member including a hidden code, and Fig. 2 is an explanatory diagram showing an example of a correspondence table showing a correspondence between a hidden code and a type of a quantum dot phosphor. © In advance, the size is selected by photolithography to produce 8 kinds of quantum of particle size D1 (peak 値 wavelength λ 1) to particle size D8 (peak 値 wavelength λ 8) of the same semiconductor material without dopants. Point the phosphor. (1) Determine the hidden code as the identification information contained in the component 1. (2) The reference table is a correspondence table of the correspondence between the hidden code and the type of the quantum dot phosphor as shown in FIG. 2, and the specific quantum dot phosphor corresponding to the hidden code is selected from the eight types of quantum dot phosphors. (3) The selected quantum dot phosphor is made into a specific content and mixed in a resin material. (4) A member of a desired shape is molded from a resin material of a quantum dot phosphor of a necessary type. Thereby, the member 1 as the identification information containing material is manufactured. Here, the formulation of the quantum dot phosphor will be described based on a specific example. The case of 8-bit bit information such as "01100101" with hidden code is explained. As shown in FIG. 2, in the correspondence table, the number of bits in the hidden code sequentially corresponds to the quantum dot phosphor of the particle diameter D1 (peak 値 wavelength Λ1) to the particle diameter D8 (peak 値 wavelength A8) from the forefront. For the case where the number of digits is "1 -23- 200951825", it is indicated that the quantum dot phosphor of the corresponding number is assigned. For the case where the number of digits is "〇", it means that the quantum dot is not allocated. Light body. In the case where the hidden code is "01100101", a quantum dot phosphor having a particle diameter D2 (peak wavelength λ 2) and a quantum dot phosphor having a diameter D3 (peak wavelength λ 3) are selected according to a hidden code. And a quantum dot phosphor having a diameter D6 (peak wavelength λ 6) and a quantum dot phosphor having a diameter D8 (peak wavelength λ 8) are each mixed in a specific amount to a specific amount of a resin material as a carrier. . Next, a description will be given of a code reading device ([Information Recognition Device]) for reading a hidden code and a code reading method ([Information Recognition Method]). Fig. 3 is an explanatory view showing an example of a code reading device. Fig. 4 is a waveform diagram schematically showing an analogous information of a spectrum detected by a code reading device. Fig. 5 is a waveform diagram schematically showing a hidden code decoded by a code reading device. The code reading device 10 includes a UV light source 11 that emits excitation light having a wavelength λ 0 that is shorter than the peak wavelength λ 1 as a substantially single wavelength of the peak straight wavelength, and is irradiated from the excitation light. The filter 21 that removes the component of the excitation light from the released light released from the member 1, the parallel lens 22 that passes through the light of the filter 21, and the parallel light that passes through the parallel lens 22 are formed into a plurality of slits. The equalizer 23 and the spectroscopic mechanism 12 ([a type of spectroscopic device]) formed by the concave mirror 24 of the wavelength split by the light split by the classifier 23, and the emitted light of the split light are detected once. The CCD sensor 13 (one of [light measuring device]) and the spectral measuring means 41 for measuring the spectrum of the emitted light by controlling the CCD sensor 13 and the analog information of the spectrum obtained by the spectral measuring means 41 are converted - 24-200951825 The hidden code detecting means 14 (one of [identification information detecting means)" of the decoding means 42 for decoding the hidden code into digital information (A/D conversion) and the information corresponding to various hidden codes are taken as Database Database means to the memory of the memory 15, and determines the authenticity of the authenticity determination by the control means 16 decoding means 42 decodes the code hidden 'and database. The code reading method via the code reading device 10 illuminates the excitation light having a wavelength λ ο which is shorter than the peak wavelength λ 作为 as a substantially single wavelength of the peak straight wavelength, and the excitation light corresponding to the excitation light The emitted light released from the member i by the irradiation is removed by the filter 21, and the light passing through the filter 21 in parallel via the parallel lens 22 and the parallel light passing through the parallel lens 22 are passed through a plurality of slits. The equalizer 23 diffracts and splits the light, and the split light is imaged into respective wavelengths via the concave mirror 24, and the spectrum of the released light is detected once by the CCD sensor 13, and the analog information of the detected spectrum is converted into The digital information (A/D conversion) decodes the hidden code, and compares the decoded hidden code with the information of the database® to determine the authenticity. Here, the reading of the hidden code will be described based on a specific example. The peak wavelength λ 激发 of the excitation light is shorter than the wavelength of all the quantum dots of the quantum dot phosphor constituting the particle size D1 (peak 値 wavelength λ 1) to the particle diameter D8 (peak 値 wavelength λ 8 ) of the hidden code. When the excitation light is irradiated, any of the quantum dot phosphors also emit fluorescence well. Specifically, the member 1 is irradiated with excitation light, and the excitation light is emitted corresponding to the irradiation, and the fluorescence of the peak wavelength λ2, the fluorescence of the peak wavelength of 3, the fluorescence of the peak wavelength λ6, and the peak wavelength are released; Fluorescent. Then, the excitation light from the member 1 includes the fluorescence of the peak wavelength λ2, the fluorescence of the peak wavelength λ3, the fluorescence of the peak wavelength λ6, and the fluorescence of the peak wavelength λ8. However, for the light to be emitted, light caused by the reflected light of the excitation light or the constituent material of the member 1 is contained as a background. The emitted light is introduced into the filter 21, and the reflected light which is not included in the excitation light is removed as it passes through the filter 21. Thereby, the background is lowered, and the detection accuracy of the detection of the hidden code is improved. The light passing through the filter 21 is parallelized into parallel light via the parallel lens 22, and is introduced into the equalizer 23. The light introduced into the classifier 23 is diffracted by the respective slits of the classifier 23. The diffraction angle is substantially split by a difference in wavelength. Further, by the concave mirror 24, the light of the same wavelength which is diffracted in different slits is formed in a straight line shape in the CCD sensor 13. Further, the light of different wavelengths is spatially shifted in the direction perpendicular to the linear junction image of the same wavelength by the CCD sensor 13, and the image is added. Thereby, the spectrum of the released light can be detected at one time via the CCD sensor 13, and when the analog information of the detected spectrum is converted into digital information (A/D conversion), the hidden code is decoded, and the decoded hidden code is decoded. And judge the authenticity by comparing with the information of the database. In the case of the above-described member 1, as the phosphor constituting the identification information, when the quantum dot phosphor having a peak-to-peak wavelength is arbitrarily changed within a specific range by using the control of the particle diameter, it is compared with the use of the body fluorescence. In the case of the body, the degree of freedom in the selection of the wavelength becomes large, and the amount of information for identifying the information can be increased. Further, when a quantum dot fluorescent material is used, it is preferable to use a bulk phosphor to reduce the selectivity of the absorption wavelength, and it is possible to easily and surely emit various types of phosphors constituting the identification information at a time. And -26-200951825 can reliably and reliably detect the authenticity of the identification information contained. In the above-described code reading device 10, for example, it is possible to identify a hidden code corresponding to the blending of the quantum dot phosphor, and it is not necessary to identify the hidden code corresponding to the blending of the bulk phosphor. A light source that emits light in a spectrum or a plurality of excitation light sources corresponding to various body phosphors can be simplified in configuration, particularly in the configuration of an excitation light source. In addition, in the case of a quantum dot phosphor, compared with the case of a bulk phosphor, the selection of the wavelength of the absorption of the phosphor is alleviated, such as in various quantum dot phosphors constituting the identification information. The shortest peak wavelength is short wavelength light, and can be any light source that substantially emits a single wavelength of light. Further, it is possible to easily and surely illuminate the various phosphors constituting the hidden code, and to perform the authenticity determination of the i-member 1 and the like easily and surely. For the above-described code reading method, for example, it is possible to identify the hidden code corresponding to the quantum dot phosphor, and to reduce the selectivity of the absorption wavelength of the phosphor compared to the case of the main body phosphor, For example, when the hidden code corresponding to the blending of the body® phosphor is identified, the excitation light of the continuous spectrum, or a plurality of types of excitation light corresponding to different wavelengths of the various body phosphors, and the hidden code are formed by the illumination. When the shortest peak wavelength of the quantum dot phosphor is a short, substantially single wavelength of light, the hidden code can be easily and surely identified. In the above-described member 1, the concealment code is a configuration in which the presence or absence of fluorescence in a plurality of specific wavelength ranges divided into equal parts is included as an identification code, and can be easily determined based on the spectrum measured by the cCD sensor 13. The hidden code is decoded. Thereby, the configuration of the code reading method can be simplified while -27-200951825, and the code reading method can be easily performed. In the above-described member 1, the phosphor constituting the concealed code is selected from the specific wavelengths of the respective wavelength ranges divided into equal numbers, and is specified as the peak 値 wavelength (peak 値 wavelength λ ΐ 値 値 値 wavelength λ 8). The quantum dot phosphor, and the fluorescence corresponding to each peak wavelength (peak wavelength 11 wavelength; 11 ~ peak wavelength λ8) of the eight types of quantum dot phosphors is substantially not coincident, and the hidden code system will be 8 types. Whether the intensity of the fluorescence of the quantum dot phosphor is a specific threshold or more, and as a component for recognizing the horse's content, the position of the peak of the fluorescence generated by the hidden code is set, and the peak of each other is The fluorescence of the 値 wavelength is isolated, and the presence or absence of fluorescence can be easily detected by A/D conversion without performing fluorescence separation analysis. Further, the interval between the peak wavelengths of the eight types of quantum dot phosphors is substantially equal intervals, and the presence or absence of fluorescence of each peak wavelength can be easily detected. Thereby, the configuration of the code reading method can be simplified, and the code reading method can be more easily performed. In the above-described code reading method, the filter 21 is used to remove the light released from the member 1 by the release light. When the component of the light is excited, the background contained in the spectrum detected by the CCD sensor 13 can be lowered, and the detection accuracy of the presence or absence of the fluorescence can be improved. In the above-described member 1, the configuration of the quantum dot phosphor using the wavelength of the wavelength range R1 to R8 corresponding to the number of bits of the concealed code as the peak wavelength λ1 to λ8 has been described. It is also possible to use a quantum dot phosphor having a wavelength other than the central wavelength as the peak wavelength in each wavelength range. In this case, the code can also be decoded by reading the same -28-200951825 as described above. Further, in the above-described member 1, the wavelength range (the above-described wavelength range R1, wavelength range R4, wavelength range R5, and wavelength range R7) corresponding to the identification 値 of the number of bits of the hidden code is not formed. The configuration of the fluorescent light has been described, but for these wavelength ranges (the above-mentioned wavelength range R1, wavelength range R4, wavelength range R5, and wavelength range R7), it is also possible to form a number of bits corresponding to the hidden code. The fluorescent light having the wavelength range of the "1 〇" (the above-mentioned wavelength range R2, the wavelength range R3, the wavelength range R6, and the wavelength range R8) is identified as a fluorescent material having a small intensity. In this case, by confirming that the fluorescence is detected for each of the wavelength ranges R1 to R8, the reliability of reading the hidden code can be improved. For such hidden codes, the details will be described. Fig. 6 is a waveform diagram schematically showing an example of the code of the first modification. However, Fig. 6 is a simplified description, and is only shown for a wavelength range (wavelength range R1 to wavelength range R4) of a portion shown in Fig. 4. As shown in Fig. 6, in accordance with the irradiation of the excitation light from the UV light source 11, a quantum dot phosphor that emits light at a peak wavelength of 1 and a quantum dot phosphor that emits light at a peak wavelength λ3 are used. The peak wavelength λ ΐ and the peak 値 wavelength; the intensity of 13 is within the second intensity range S2 of the critical 値 th2 or more, and is formulated in the resin material. On the other hand, the quantum dot phosphor having a peak wavelength λ2 and a peak wavelength Λ4 is formulated in the resin in a first intensity range S1 in which the intensity of each peak wavelength λ2 and peak wavelength Λ4 is not critical 値th1. material. In the reading of the hidden code, corresponding to the intensity of each peak wavelength λ ΐ λ λ 4 being the first intensity range S1 or the second intensity range S2, it is judged that the number of bits in the hidden code is -29-200951825. Or "1". Accordingly, in the case shown in Fig. 6, it is judged that the hidden code is "1010". However, in the case where the intensity of the peak wavelength λ ΐ λ λ4 is not within the first intensity range S1 and the second intensity range S2, it is determined to be a pseudo hidden code. Further, in the above-described member 1, the configuration of the identification number corresponding to the number of bits of the hidden code is 2 ("0" or "1"), although it has been described, but it is also possible to pass each wavelength range. When the intensity of the fluorescence in R1 to R8 is different, the number of bits of the hidden code is used as a multi-turn. In this case, the intensity of the fluorescence of each peak wavelength is judged step by step in the reading of the hidden code. For example, in the wavelength range R1, the intensity may be divided into four intensity ranges (S1-S4), and the measured intensity may be determined as "0" in the intensity range S1 and in the intensity range S2. It is assumed to be "1", "2" in the case of the intensity range S3, and "3" in the case of the intensity range S4. However, the same applies to the other wavelength ranges R2 to R8. For such hidden codes, the details will be described. Fig. 7 is a waveform diagram schematically showing an example of the code of the second modification. However, Fig. 7 is a simplified description, and is only shown for the wavelength range (wavelength range R1 to wavelength range R4) of one portion shown in Fig. 4. As shown in FIG. 7, the intensity of the quantum dot fluorescent system that emits light at the peak wavelength λ 对应 corresponding to the excitation light from the UV light source 11 is critical at the peak 値 wavelength λ 1 and not above the critical threshold 値 th3. The third intensity range S3 is internally disposed in the resin material, and the quantum dot fluorescent system that emits light at the peak wavelength A2 is not blended with the resin material -30-200951825 corresponding to the irradiation of the excitation light from the UV light source 11, corresponding to the uv The quantum dot fluorescent system that emits light by the excitation light of the light source 11 and emits light at the peak wavelength λ3 is blended in the fourth intensity range S4 whose intensity is higher than the threshold 値th3, in the fourth intensity range S4, corresponding to the light source from the UV light source. In the irradiation of the excitation light of 11 , the quantum dot fluorescent system which emits light at the peak wavelength λ4 is blended in the resin material at a peak intensity λ4 whose intensity is critical 値th1 or more and less than the critical 値th2 in the second intensity range S2. However, the luminous intensity at the wavelength λ2 is the intensity in the intensity range S1 below the critical 値th1 in order to become 〇 "〇". In the reading of the hidden code, in the intensity range in which the intensity of each peak wavelength λ ΐ 〜 14 is in any of the first intensity range S1 to the fourth intensity range S4, it is determined that the identification number of the number of bits in the hidden code is "0", "1", "2" or "3". Accordingly, in the case shown in Fig. 7, it is judged that the hidden code is "203 1 j. In addition, in the above-mentioned member 1, the identification for the number of bits corresponding to the hidden code is 2 ("0" or " Although the configuration of 1") has been described, the number of bits of the concealment code is multi-turned as the difference between the intensity of the fluorescence in each of the wavelength ranges R1 to R8. In this case, in the reading of the hidden code, fluorescence separation analysis is performed to determine the peak wavelength of the fluorescent light. For example, in the wavelength range R1, the range may be further divided into four ranges (R11-R14), and the extracted wavelength; I is judged as "when λ Ι - dS and < λ ld / 2 are satisfied". 〇", satisfied; I 1-(1/2$λ<λ1 is judged as "1", and when AlSACAl + d/2 is satisfied, it is judged as "2", satisfied; ll+d/2S λ < The case of Al+d is judged to be "3". However, the other wavelength ranges -31 - 200951825 R2 to R8 are also the same. In addition, in the above-mentioned member 1, for each wavelength range R1 to R8, The formation of a type of peak-to-peak wavelength of fluorescence has been described.

However, it is also possible to form a plurality of types of fluorescent light having different peak-to-peak wavelengths in the respective wavelength ranges R1 to R8, and the number of types of fluorescent light having different peak-to-peak wavelengths is determined as a configuration of the identification code. In this case, the number of types of fluorescent light can be extracted by performing fluorescence separation analysis in each of the wavelength ranges R1 to R8 and visually observing the display of the spectral result. In this case, it is preferable that the spectrum in which Q is formed in each of the wavelength ranges R1 to R8 is such that the peak of the complex peak 可 can be determined, and the fluorescence of each peak wavelength is preferably isolated. However, judging the degree of the waveform having the complex peak 系 means that the fluorescence of the adjacent peak 値 wavelength is greater than the width of the half 而 and is isolated. Further, it is preferable that the fluorescence of the peak-to-peak wavelength in the adjacent wavelength ranges R1 to R8 is such that the spectrum has an individual peak value and the fluorescence of each peak wavelength is preferably isolated. In this case, in the respective wavelength ranges R1 to R8, the fluorescence separation analysis is performed in accordance with the wavelength range, and the shape of the background is segmented and simplified, so that the separation accuracy in the fluorescence separation analysis can be improved. For example, as described for the wavelength range R1, as a quantum dot phosphor that forms fluorescence in the wavelength range R1, a quantum dot phosphor of a peak-to-peak wavelength (Al-d/2), a quantum of a peak wavelength λΐ The quantum dot phosphor of the spot phosphor and the peak-to-peak wavelength (Al+d/2) is selected, and it is judged as "〇" for the case where no fluorescence of any peak wavelength is formed in the wavelength range R1. In the case of the fluorescence of the peak-to-peak wavelength of one type, it is judged as "1". For the case where the fluorescence of the peak wavelength of the two types is formed, it is judged that -32-200951825 is "2", and three types of peaks are formed. The case of the fluorescence of the wavelength is judged as "3". Furthermore, the peak-to-peak wavelength can be used as a recognition factor to make more judgments. However, in the case of such a configuration, in order to improve the separation accuracy in the fluorescence separation analysis, the intensity of the fluorescence of each peak wavelength is substantially the same as the adjustment amount, and the peak-to-peak wavelengths are equally spaced. It is better to adjust the particle size. For such hidden codes, the details will be described. Fig. 8 is a waveform diagram schematically showing an example of the code of the third modification. However, Fig. 8 is a simplified description, and is only displayed for a wavelength range (wavelength range R1 to wavelength range R4) of a portion shown in Fig. 4. As shown in FIG. 8, in accordance with the irradiation of the excitation light from the UV light source 11, a plurality of types of quantum dot phosphors that emit light at mutually different peak wavelengths in the wavelength range R1 are derived from such quantum dot fluorescent light. The synthesized light of the light emission of the body is formed by forming a spectrum having three peaks (front shape portion) at the upper end portion and blending with the excitation material from the UV light source 11 in the wavelength range R2. A plurality of types of quantum dot fluorescent systems that emit light at a peak-to-peak wavelength are not blended with a resin material, and corresponding to the irradiation of the excitation light from the UV light source 1 1 , a plurality of types of light are emitted at a peak wavelength of the wavelength range R3. The quantum dot phosphor, the light emitted from the quantum dot phosphors is formed by forming a spectrum having a peak 在 at the upper end and blending with the excitation material from the uv light source 11 A plurality of types of quantum dot phosphors emitting light at different peak-to-peak wavelengths in the range R4 are emitted from the quantum dots, and the light is formed at the upper end with two peaks The spectrum of the ruthenium is blended with the resin material. However, -33- 200951825, the peak number in the wavelength range R2 is regarded as "〇". The reading of the hidden code 'corresponds to the number of peaks in each wavelength range R1 to R4 (the number of types of quantum dot phosphors in each wavelength range), and determines that the identification number of the number of bits in the hidden code is "〇", "1", "2" or "3". Accordingly, in the case shown in Fig. 9, it is judged that the hidden code is "3012". Further, in the above various modifications, the spectrum of each of the wavelength ranges R1 to R8 is isolated by being able to determine the degree of the waveform having a complex peak ,, although it has been described, but it may be Use different peaks @

A plurality of quantum dot phosphors of a plurality of wavelengths are formed such that they are adjacent to each other in a specific shape, for example, a general-purpose fluorescent light, a half-turn width is formed in a head shape or a table shape, and a half-width is used as an identification element. Composition. However, in this case, the reference function corresponding to the specific shape is held in advance, and the half-turn width can be extracted by the analysis of the least squares method using the width of the reference function as a parameter. In this case, generally, the wavelength distribution of the half-turn width of the fluorescent light from the quantum dot phosphor of one type may be combined by various Q combinations of a plurality of types of quantum dot phosphors. It is difficult to reproduce the situation by imitation. As a result, the concealment of identification information increases. Further, by combining the difference in intensity with the width of the half turn, the amount of information of the hidden code can be increased when the area of the identification 各 in each of the wavelength ranges R1 to R8 is increased. For such hidden codes, the details will be explained. Figs. 9 to 11 are waveform diagrams schematically showing an example of hidden codes in the fourth to sixth modifications. However, in Figs. 9 to 11, for the sake of simplicity, only the wavelength range (wavelength range R1 to wavelength range R4) of one portion shown in Fig. 4 is displayed. -34- 200951825 As shown in Fig. 9, a plurality of types of quantum dot phosphors that emit light at different peak wavelengths in the wavelength range R1 corresponding to the irradiation of the excitation light from the uv light source 11 are derived from these The synthesized light of the luminescence of the quantum dot phosphor is a semi-値 width wi which is larger than the luminescence of the quantum dot phosphor of the type, and the width of the head shape is blended with the resin material, and corresponds to the UV material. The irradiation of the excitation light of the light source 11 'the quantum dot phosphor emitted by the peak wavelength 波长 in the wavelength range R2 is not formulated in the resin material, and the irradiation corresponding to the excitation light from the UV light source 11 is in the wavelength range. A plurality of types of quantum dot phosphors that emit light at mutually different peak-to-peak wavelengths in R3, and the synthesized light from the quantum dots of the phosphors is a half-width W2 that is larger than the width W3 before the head shape Spectralally blended with the resin material, and the quantum dot phosphor that emits light at a peak wavelength in the wavelength range R4 corresponding to the excitation light from the UV light source 11 is derived from the quantum The light emitting phosphor is the shape before the shape of the first half of the width W1 Zhi spectrally ® material formulated in a resin material. However, the width of the half-length in the wavelength range R2 is regarded as "〇". The readout of the hidden code corresponds to a first width range in which the width of the peaks λ 1 to λ4 is less than the first critical range, and the first threshold 値 or less does not reach the second critical 値, including the half width W1. The second width range and the second critical enthalpy are less than the third critical enthalpy, and include the third width range of the half width W2, the third critical 値 or more, and the width range of the fourth width range including the half width W3. The identification number of the number of hidden codes is "0", "1", "2" or "3". Accordingly, in the case shown in Fig. 9, it is judged that the hidden code is "203 1". -35- 200951825 In addition, as shown in FIG. 10, in accordance with the irradiation of the excitation light from the UV light source 11, a plurality of types of quantum dot phosphors emitting light at mutually different peak wavelengths in the wavelength range R1 are derived from The synthesized light of the luminescence of the quantum dot phosphors is spectrally blended with the resin material in comparison with the spectral shape of the half-width W1 of the half-turn width W1 from the quantum dot phosphor of one type, corresponding to The irradiation of the excitation light from the UV light source 11 is a plurality of types of quantum dot phosphors that emit light at mutually different peak wavelengths in the wavelength range R2, and the synthesized light from the quantum dot phosphors is The half-turn width W1 is larger, and the half-turn width W3 is smaller than the half-width W2. The shape of the stage is spectrally blended with the resin material, and the irradiation light from the UV light source 11 is irradiated with the peak wavelength in the wavelength range R3. The quantum dot fluorescent system that emits light is not blended with the resin material, and the quantum dot fluorescent light that emits light at a peak wavelength in the wavelength range R4 corresponding to the irradiation of the excitation light from the UV light source 11 The light emitted from the quantum dot phosphor is spectrally blended with the resin material before the half-width W1. However, the half-width of the wavelength range R3 is regarded as "0". In the reading of the hidden code, the half-width of each of the wavelength ranges R1 to R4 is determined to be hidden within the width range of any of the first width range to the fourth width range as described with reference to FIG. The identification number of the digits of the code is "0", "1", "2" or "3". Accordingly, for the case shown in Fig. 1, it is judged that the hidden code is "3201". Further, as shown in FIG. 11, the quantum dot phosphor-36-200951825 which emits light at the peak wavelength λ 1 as the irradiation corresponding to the excitation light from the UV light source 1 1 emits light at a half turn width W3. The quantum dot phosphor of the semiconductor material is formulated in a resin material, and the quantum dot phosphor that emits light at the peak wavelength λ2 as the irradiation corresponding to the excitation light from the UV light source 11 is smaller than the half width W3. The quantum dot phosphor of the second semiconductor material that emits light with a half width W2 is blended with the resin material, and the quantum dot fluorescent system that emits light at the peak wavelength λ3 is not irradiated with the excitation light from the UV light source 11. The quantum dot phosphor that emits light at a peak wavelength λ4 corresponding to the irradiation of the excitation light from the krypton UV light source 11 is irradiated with a first semiconductor material that emits light at a half width W1 that is smaller than the half width W2. The quantum dot phosphor is formulated in a resin material. The first semiconductor material, the second semiconductor material, and the third semiconductor material are different semiconductor materials. However, the width at half the wavelength λ3 is regarded as "0". In the reading of the hidden code, the width corresponding to the half width of each of the wavelength ranges R1 to R4 is within the width range of any of the first width range to the fourth width range, as in the case of the description with reference to FIG. The identification number of the number of bits in the hidden code is ^ 0", Μ", ^ 2" or ^ 3". Accordingly, in the case shown in Fig. 11, it is judged that the hidden code is "320 1". For the above-mentioned determination of the number of bits of the hidden code, the reference is made to at least one critical of the stationary (fixed).値, but the difference in relative intensity can be used as the identification code for the threshold of the reference activity. Specifically, the identification 任意 corresponding to the arbitrary number of bits of the concealment code is obtained by using the previous digit as the reference digit and the intensity of the peak wavelength of the fluorescence corresponding to the reference digit as the reference intensity. Whether the intensity of the peak wavelength is above the base-37-200951825 quasi-strength is judged. However, the identification 对应 corresponding to the leading digit is determined by the presence or absence of the illuminance corresponding to the peak 値 wavelength of the number of bits or whether it is a specific critical 値 or higher. Similarly, the identification corresponding to the number of digits of the hidden code is determined by the number of bits as the reference digit. Further, in the above-described member 1, it is formed in each wavelength range R1. The fluorescent light of R8 is not substantially overlapped with the fluorescence in the adjacent wavelength range. Although it has been described, it can also be used as a quantum dot phosphor having a large Q peak with different peak wavelengths. Adjacent, the spectrum has a specific shape, and the entire wavelength range (for example, the range of λ 1-d to A8+d described above) is not distinguished from each wavelength range, and the shape is smoothly formed as a concavity and convexity, and the analysis or pattern is separated by fluorescence separation. The identification analysis and the like are performed to decode the identification information. The member 1 described above is configured to emit light other than the fluorescent light that is not substantially hidden, but the light-emitting state of the fluorescent material or the like may be substantially Avoid using the wavelength range of its illuminating 而 to illuminate the hidden fluorescent light. Here, the hidden code is explained. 12 to 15 are waveform diagrams schematically showing a modification of the concealment code. However, Fig. 12 to Fig. 15 show a case where a hidden code is formed by avoiding a specific wavelength range. When a hidden code is set on the display surface of the apparatus for releasing light (wavelength Xa) such as a display lamp or the like, or as shown in Fig. 12, the hidden code is set to avoid the vicinity of the wavelength Aa. However, in Fig. 12, it is shown that the wavelength interval is a certain wavelength interval, and the hidden code is "11111111" -38-200951825, but other configurations are possible. Further, as shown in FIG. 13, it is also possible to avoid the vicinity of the wavelength Ab and to form a fluorescent light for a hidden code (peak wavelength λ ΐ 〜 A4) at a constant wavelength interval d2 ′ in a wavelength range smaller than the wavelength λ b . On the other hand, in the wavelength range where the wavelength Ab is larger, the fluorescent light for the hidden code (peak wavelength λ5 to A8) is formed at a certain wavelength interval d3. However, the wavelength interval d2 and the wavelength interval d3 may be the same or different. In addition, as shown in Fig. 14, ❹ can also hide the visible range and set the hidden code. In this case, the fluorescent system based on the hidden code is not noticeable to the human eye and does not affect the original luminescent color. Further, in the case of a white illuminating device, for a case where the half-width of the central wavelength Ac is wide and the half-width of the central wavelength Ad is wide, as shown in Fig. 15, the width of the center wavelength Λ C is substantially avoided. It is preferable to set the hidden code in the vicinity of the light emission and the light emission of the center wavelength Ad. The detection of the hidden code of the above-described member 1 is based on the case where the spectrum measured by the light spectrum measuring means 41 is directly decoded by the decoding means 42, although it has been described 'but there is a form The background light emission other than the fluorescence of the quantum dot phosphor of the hidden code can also be detected as follows. Fig. 16 is a waveform diagram schematically showing another example of the method of reading the hidden code. However, Fig. 16 shows only the wavelength range (wavelength range R1 to wavelength range R4) of a portion shown in Fig. 4 for the sake of simplicity. The emitted light measured by the spectrometric means 41 is as shown in FIG. 16 'for the case of the fluorescent light L1 to L4 and the background light emitting Lbg which form the hidden code, the analogy of the light released from the light u -39 - 200951825 Information, subtracting the background information corresponding to the background illumination Lbg measured for the same thing that does not contain the hidden code in advance (background data: the waveform of the middle segment in FIG. 16), extracting the analog information corresponding to the hidden code (FIG. 16) The waveform of the bottommost segment). Thereafter, the hidden code is decoded by converting the extracted analog information into digital information. If it is constituted for this purpose, even for the color of the member, particularly for the color development of the member itself, the use of the fluorescent material can detect the hidden code with high precision. However, in this case, the code reading device can also be configured as a background information memory means having more memory background information, and the code reading device can also be used as a configuration for reading background information stored in the external device. In the above-described member 1, the configuration of the quantum dot phosphor formed using a semiconductor material not containing a dopant has been described, but the constituent material of the quantum dot phosphor is to increase the luminance of the light. The luminescence properties of the larger classes are enhanced, and may also be semiconductor materials containing dopants. Further, in the above description, the plural kinds (eight types) of quantum dot phosphors which are likely to be contained in the member 1 are all of the same substance, and although they have been described, they may be contained as different substances. The composition of the quantum dot phosphor formed. Further, although the configuration using a quantum dot phosphor formed of a semiconductor material has been described, it may be a configuration using another phosphor such as an oxide phosphor which is not a semiconductor material. The above-described member 1 has been described for the configuration of a quantum dot phosphor formed using a semiconductor material not containing a dopant, but the constituent material of the quantum dot phosphor is used to increase the luminance of the light. The luminescence properties of the larger classes are enhanced, and may also be semiconductor materials containing dopants. -40- 200951825 In the above, the code reading device ι includes a library memory means 15 for storing information for authenticating the authenticity of the authenticity. Although the description has been made, in the present invention, the encoding The reading device may be configured to have no library memory means. In this case, as a data transfer means, it is preferable to receive the information for authenticity determination as a database connected to a computer or the like that is not stored in the code reading device, and to determine the authenticity based on the received information. Composition. Furthermore, it may be a configuration that does not have a true false determination means. For example, if the information of the spectrum measured by an external computer or the like is transmitted, the computer performs the authenticity determination of the reference database, and only the result is replied to the configuration of the code reading device. In the above, the configuration for authenticating the authenticity based on the information that is used as the database has been described. However, as a simple data sheet or the like, it can be used as a specific information for the specific identification information. And the composition of the authenticity judgment. ® [Industrial Applicability] The present invention is applicable to various components or devices that impart identification information via a phosphor. Further, the present invention can generally use an information recognition device that detects identification information from various members or devices that provide identification information via a phosphor. Further, the present invention can generally utilize an information recognition method for detecting identification information from various members or devices that impart identification information via a phosphor. BRIEF DESCRIPTION OF THE DRAWINGS -41 - 200951825 Fig. 1 is a perspective view showing an example of a configuration of a member including a hidden code. Fig. 2 is an explanatory diagram showing an example of a correspondence table showing the correspondence between the hidden code and the type of the quantum dot phosphor. Fig. 3 is an explanatory view showing an example of a code reading device schematically. Fig. 4 is a waveform diagram schematically showing an analogous information of a spectrum detected by a code reading device. Fig. 5 is a waveform diagram schematically showing a hidden code decoded by a code reading device. Fig. 6 is a waveform diagram schematically showing an example of a hidden code of the second modification. Fig. 7 is a waveform diagram schematically showing an example of a hidden code in the second modification. Fig. 8 is a waveform diagram schematically showing an example of a hidden code in a third modification. Fig. 9 is a view schematically showing a waveform Π = ι Ι of a hidden code of the fourth modification. Fig. 10 is a waveform diagram schematically showing an example of a hidden code in the fifth modification. Fig. 11 is a waveform diagram schematically showing an example of a hidden code of the sixth modification. Fig. 12 is a waveform diagram schematically showing an example of a hidden code of the seventh modification. Fig. 13 is a view schematically showing a case of a hidden code of the eighth modification, -42-200951825. Fig. 14 is a waveform diagram schematically showing an example of a hidden code in the ninth modification. Fig. 15 is a waveform diagram schematically showing an example of a hidden code of the 10th modification. Fig. 16 is a waveform diagram schematically showing another example of the method of reading the hidden code. ❹ [Description of main component symbols] 1 : Component (identification information inclusion) 1 0 : Code reading device (information recognition device) 1 1 : UV light source (excitation light source) 12: Spectroscopic mechanism (split device) 13 : CCD sensor (Light measuring device) 1 4 : Hidden code detecting means (identifying information detecting means) ® 1 5 : Library memory means 1 6 : Authenticity determining means 21 : Filter 2 2 : Parallel lens: 23 : Classifier 24 : concave mirror 4 1 : spectrometry means 42 : decoding means -43-

Claims (1)

200951825 VII. Patent application scope: 1. A recognition information containing material belonging to at least one type of phosphor containing different peak wavelengths, characterized in that at least one type of phosphor is specified from a specific one. A plurality of types of quantum dot phosphors are selected, and a waveform of a spectrum of fluorescence corresponding to the blend of the at least one type of phosphor is included as identification information. 2. The identification information contained in the first aspect of the patent application, wherein the quantum dot phosphor of at least a part of the plurality of types of quantum dot phosphors is particles of the same material having different particle diameters. 3. The identification information contained in item 1 or 2 of the patent application scope, wherein the identification information is a fluorescence intensity at each peak wavelength of the plurality of types of quantum dot phosphors, for a specific Whether or not the excitation light is a specific intensity or more is included as an identification code. 4. The identification information contained in the first or second aspect of the patent application, wherein the identification information is a fluorescence intensity at each peak wavelength of the plurality of types of quantum dot phosphors, for a specific In the case of the excitation light, whether or not it is any intensity range of three or more intensity ranges is included as an identification code. 5. The identification information contained in item 1 or 2 of the patent application scope, wherein the identification information is a fluorescence intensity at each peak wavelength of the plurality of types of quantum dot phosphors, for a specific Whether or not the excitation light is in any intensity range of a specific complex number exceeding a large intensity range is included as an identification code. 6. The object of claim 1, wherein the peak wavelength of the plurality of quantum dot phosphors is a specific wavelength interval. 7. The identification information according to claim 6, wherein the peak wavelengths of the plurality of quantum dot phosphors are in a specific plurality of wavelength ranges which are isolated from each other for each of the foregoing wavelength ranges. Essentially a certain wavelength interval. 8. The identification information contained in claim 6, wherein the peak wavelength of the plurality of types of quantum dot phosphors is substantially a constant wavelength interval. 9. The identification information according to any one of claims 1 to 8, wherein the fluorescence of each peak wavelength corresponding to the plurality of types of quantum dot phosphors is substantially non-overlapping. The identification information contained in the first or second aspect of the patent application, wherein the identification information is specific to the fluorescence of the phosphor from the at least one of the aforementioned types of excitation light. The width of a part of the spectrum of each of the complex wavelength ranges is a width range of any of the complex width ranges, and is included as an identification code. 11. An information recognition device belonging to a waveform for identifying a spectrum of fluorescence of a blend corresponding to at least one type of phosphor selected from a specific plurality of types of quantum dot phosphors, and identifying information included as identification information An information recognition device including the identification information of the object, comprising: an excitation light source that emits excitation light that emits all of the plurality of types of quantum dot phosphors; and an irradiation light that is emitted from the excitation light corresponding to the excitation light source Pre-45-200951825 The light-measuring device for detecting the information containing the emitted light, the spectroscopic device for splitting, and the intensity of the emitted light that is split by the spectroscopic device, and measuring the wavelength according to the wavelength, and the light passing through the light The detection result of the measuring device detects the identification information detecting means for detecting the information; the excitation light source is used as the excitation light, and the shortest peak wavelength of the peak wavelength of the plurality of types of quantum dot phosphors is shorter, and substantially On a single wavelength of light. The information recognition method is a waveform for identifying a spectrum of fluorescence that is to be blended with at least one type of phosphor selected from a specific plurality of types of quantum dot phosphors, and is included as identification information. An information recognition method for identifying the aforementioned identification information of the information-containing object, characterized in that the shortest peak wavelength of the peak wavelengths of the plurality of types of quantum dot phosphors is shorter, and substantially single wavelength excitation light is irradiated The light-receiving light of the at least one type of the above-mentioned identification information-containing material includes a light emitted from the identification information-containing material, and the intensity of each wavelength of the emitted light of the split light is measured, according to the intensity of each wavelength The result of the measurement is used to detect the identification information. The method for identifying information according to the above-mentioned claim, wherein, in the measurement of the intensity of the wavelength of the emitted light, the plurality of selected objects corresponding to the at least one type of the phosphor are selectively measured. The intensity of each peak wavelength of a quantum dot phosphor of the type. -46 -