WO2023054505A1 - 収納構造体、在庫管理システムおよび在庫管理方法 - Google Patents

収納構造体、在庫管理システムおよび在庫管理方法 Download PDF

Info

Publication number
WO2023054505A1
WO2023054505A1 PCT/JP2022/036246 JP2022036246W WO2023054505A1 WO 2023054505 A1 WO2023054505 A1 WO 2023054505A1 JP 2022036246 W JP2022036246 W JP 2022036246W WO 2023054505 A1 WO2023054505 A1 WO 2023054505A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical filter
filter layer
infrared
light
products
Prior art date
Application number
PCT/JP2022/036246
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
麻未 川口
雄大 沼田
祥一 松田
周太 ▲徳▼田
Original Assignee
日東電工株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日東電工株式会社 filed Critical 日東電工株式会社
Priority to JP2023551621A priority Critical patent/JPWO2023054505A1/ja
Publication of WO2023054505A1 publication Critical patent/WO2023054505A1/ja

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/54—Inspection openings or windows

Definitions

  • Storage structures broadly include, for example, storage containers (eg, storage boxes and storage cases) and storage compartments (eg, cabinets).
  • Patent Literature 1 discloses a technique for streamlining inventory management in a store or the like using a camera.
  • Patent Literature 2 discloses a technique for improving the efficiency of inventory management of commodities (items) in a warehouse by using a camera provided in a robot device that moves within the warehouse.
  • JP 2019-40227 A Japanese Patent Application Laid-Open No. 2021-042080
  • the present invention provides a storage structure in which products can be stored in such a way that they cannot be seen, and an inventory management system and method for inventory management of products stored in such a storage structure. for the purpose.
  • Another object of the present invention is to provide an inventory management system that is invisible to users.
  • the side surface portion has, at least in part of the front surface portion, an optical layered body having a linear transmittance of 40% or more with respect to at least part of the wavelengths of light within a wavelength range of 760 nm or more and 2000 nm or less,
  • the optical layered body is an optical filter layer that diffusely reflects visible light, has a matrix, and fine particles serving as light scatterers dispersed in the matrix, and has at least A storage structure having an optical filter layer having a linear transmittance of 60% or more for light of some wavelengths.
  • the transmittance curve of the visible light wavelength region of the optical filter layer has a curve portion where the linear transmittance monotonically decreases from the long wavelength side to the short wavelength side, and the curve portion is on the long wavelength side as the incident angle increases. 3.
  • the step A includes a step A1 of irradiating an infrared ray having a predetermined pattern at a predetermined timing, 7.
  • An inventory management method according to item 6, wherein said step B includes a step B1 of receiving said reflected infrared rays in synchronization with said predetermined timing.
  • Item 8 An inventory management method according to item 7, further comprising a step F of determining an order quantity based on the inventory quantity and a pre-stored reference inventory quantity for each of the plurality of product types.
  • An optical laminated body disposed in front of a storage structure in which a product is stored and having a linear transmittance of 40% or more for light of at least part of the wavelength range of 760 nm or more and 2000 nm or less; an infrared detection device arranged to receive infrared rays reflected by the product via the optical laminate,
  • the optical layered body is an optical filter layer that diffusely reflects visible light, has a matrix, and fine particles serving as light scatterers dispersed in the matrix, and has at least An inventory management system having a linear transmittance of 60% or more for light of some wavelengths.
  • the side surface portion has, at least in part of the front surface portion, an optical layered body having a linear transmittance of 40% or more with respect to at least part of the wavelengths of light within a wavelength range of 760 nm or more and 2000 nm or less,
  • the optical layered body is an optical filter layer that diffusely reflects visible light, has a matrix, and fine particles serving as light scatterers dispersed in the matrix, and has at least a housing structure having an optical filter layer having a linear transmittance of 60% or more for light of some wavelengths; an infrared light source device arranged to emit infrared rays toward a plurality of products through the optical filter layer; an infrared detection device positioned to receive infrared rays reflected by the plurality of commodities through the optical filter layer; an infrared information generating device that generates infrared information of the plurality of products based on the received infrared rays
  • the transmittance curve of the visible light wavelength region of the optical filter layer has a curve portion where the linear transmittance monotonically decreases from the long wavelength side to the short wavelength side, and the curve portion is on the long wavelength side as the incident angle increases. 13.
  • An inventory management system according to item 15, further comprising an ordering device for placing an order with a pre-stored order destination for the product for which the order quantity has been determined.
  • a storage structure capable of storing products invisibly, and an inventory management system and inventory management method for inventory management of products stored in such a storage structure.
  • an inventory management system that is invisible to users is provided.
  • FIG. 1 is a schematic perspective view of a storage structure (storage container) 100a according to an embodiment of the present invention
  • FIG. 3 is a schematic front view showing a state in which storage structures 100a and 100b are arranged on a shelf 300
  • FIG. 3 is a schematic front view of another storage structure (storage box) 200 according to an embodiment of the present invention
  • FIG. 1 is a schematic perspective view of a storage structure (storage container) 100a according to an embodiment of the present invention
  • FIG. 3 is a schematic front view showing a state in which storage structures 100a and 100b are arranged on a shelf 300
  • FIG. 3 is a schematic front view of another storage structure (storage box) 200 according to an embodiment of the present invention
  • FIG. 4 is a schematic cross-sectional view of the front portion of the side portion of the storage structure having the optical filter layer 110 according to the embodiment of the present invention
  • 1 is a block diagram showing a configuration example of an inventory management system 400 according to an embodiment of the present invention
  • 4 is a flow chart illustrating an example of the operation of inventory management system 400 according to an embodiment of the present invention
  • 2 is a schematic cross-sectional view of an optical filter layer 110
  • FIG. FIG. 4 is a diagram showing an example of a cross-sectional TEM image of the optical filter layer 110
  • 3 is a graph normalized by the maximum transmittance, and shows an example of the incident angle dependence of the linear transmittance spectrum of the optical filter layer 110.
  • a storage structure, an inventory management system, and an inventory management method according to embodiments of the present invention will be described below with reference to the drawings.
  • the storage structure, inventory management system, and inventory management method according to embodiments of the present invention are not limited to those illustrated below.
  • FIG. 1 shows a schematic perspective view of a storage structure 100a according to an embodiment of the present invention.
  • the storage structure 100a is a storage container (storage case).
  • the storage container 100a has a side surface portion 100SM and a bottom surface portion 100BM that define a storage space SS.
  • the side surface portion 100SM is an optical filter layer that diffusely reflects visible light at least in part of the front surface portion 100SMF. It has an optical filter layer 110 (see FIG. 4) having a linear transmittance of 60% or more for light of at least some wavelengths within the following wavelength range.
  • the optical filter layer 110 may be provided at least in a portion of the side surface of the storage structure that is visible to the user and where information on the product stored inside can be obtained using infrared rays. .
  • the front portion 100SMF has an optical filter layer 110 and a base layer 120 that supports the optical filter layer 110, as will be described later with reference to FIG.
  • the optical filter layer 110 As the optical filter layer 110, as will be described later with reference to FIGS. 7, 8 and 9, the optical filter described in International Application PCT/JP2021/010413 filed by the present applicant is preferably used as the optical filter layer 110.
  • an optical filter having a high straight infrared transmittance and a high diffuse reflectance for visible light can be used.
  • infrared radiation includes at least light (electromagnetic waves) with a wavelength in the range of 760 nm or more and 2000 nm or less.
  • visible light refers to light within the range of 400 nm or more and less than 760 nm.
  • the storage container 100a has a side surface portion 100SM that defines four side surfaces of a substantially rectangular parallelepiped storage space, and a bottom surface portion 100BM that defines the bottom surface of the storage space.
  • the shape of the storage space SS is not limited to this, and may be various shapes.
  • the storage container 100a may further have an upper surface portion that defines the upper surface of the storage space SS.
  • the top portion may be, for example, an openable or removable lid.
  • the storage container 100a has an optical filter layer 110 on at least the front portion 100SMF of the side portion 100SM, and has the same structure as various known storage containers (storage cases) except that the front portion 100SMF can sufficiently transmit infrared rays. You can
  • FIG. 2 shows a schematic front view of a state in which the storage structures 100a and 100b are arranged on the shelf 300.
  • the storage structure 100b is, for example, a storage container having substantially the same structure as the storage container 100a but with a different depth.
  • Storage containers 100a and 100b (sometimes collectively referred to as "storage container 100") are arranged, as shown in FIG. Not only the front portions 100SMF of the storage containers 100a and 100b, but also the rear portions 100SMR on the opposite side of the front portions 100SMF may have the same configuration as the front portions 100SMF.
  • the entire side portion 100SM may have the same configuration.
  • FIG. 3 shows a schematic front view of another storage structure 200 according to an embodiment of the invention.
  • the storage structure 200 is, for example, a storage (cabinet).
  • the storage 200 has a side portion 200SM that defines an internal storage space, a bottom portion 200BM, and a ceiling portion 200CM.
  • the side portion 200SM has left and right doors, and the left and right doors are optical filter layers that diffusely reflect visible light at least to the front portions 200SMFa and 200SMFb of the portions where products are placed.
  • the optical filter layer 110 (see FIG. 4 ).
  • a plurality of shelves are arranged inside the storage box 200 .
  • the cabinet 200 has an optical filter layer 110 on at least the front portions 200SMFa and 200SMFb of the side portion 200SM, and the front portions 200SMFa and 200SMFb are the same as various known cabinets except that they can sufficiently transmit infrared rays.
  • a portion of the storage 200 other than the front portions 200SMFa and 200SMFb, or a frame portion may be made of metal.
  • the storage container 100 may be stored in the storage 200 .
  • FIG. 4 shows a schematic cross-sectional view of the front portion having the optical filter layer 110 among the side portions of the housing structure according to the embodiment of the present invention.
  • the front portions 200SMFa and 200SMFb of the container 200 also have an optical filter layer 110 and a base layer 120 supporting the optical filter layer 110, like 100SMF of the storage container 100 described above.
  • the base layer 120 preferably has a linear infrared transmittance of 30% or more, more preferably 50% or more, and even more preferably 80% or more.
  • the base material layer 120 is formed using a plastic material such as acrylic resin, polyolefin, polystyrene, or polycarbonate, for example.
  • the base material layer 120 does not have to be transparent to visible light, and may be made of a white plastic material, for example.
  • the optical filter layer 110 will be described later with reference to FIGS. 7, 8 and 9. FIG.
  • FIG. 5 is a block diagram showing an example configuration of an inventory management system 400 according to an embodiment of the present invention.
  • the inventory management system 400 directs infrared rays toward a plurality of commodities through the storage structures 100 and/or 200 and the optical filter layers of the storage structures 100 and/or 200.
  • Infrared light source devices 410a and 410b arranged to emit infrared rays
  • infrared detection devices 420a and 420b arranged to receive infrared rays reflected by a plurality of products through the optical filter layer 110, and a computer 500. have.
  • each device may be one, or three or more. Alternatively, they may move.
  • the infrared light source device may be configured to irradiate infrared rays through the optical filter layer toward the entire space for storing the product in the storage structure 100 and/or 200, and the infrared detection device is an infrared light source. It may be arranged to receive infrared rays emitted from the device and reflected by a plurality of commodities.
  • infrared information includes image information and three-dimensional information (shape information, unevenness information) of each product.
  • a known infrared detection device may be selected according to the required information.
  • Infrared detection devices 420a, 420b are, for example, three-dimensional sensors or cameras.
  • the infrared light source devices 410a and 410b are, for example, infrared LEDs or infrared lasers (semiconductor lasers).
  • the computer 500 has a processor 510 , a storage device 520 and a communication/input/output device 530 .
  • Processor 510 can perform various operations by, for example, programs (software) stored in storage device 520 .
  • the processor 510 includes, for example, an infrared information generation device 512 that generates infrared information on a plurality of products based on the infrared rays received by the infrared detection devices 420a and 420b, and a plurality of infrared information and a plurality of products stored in advance in the storage device 520, for example.
  • an inventory quantity estimation device 514 that estimates the inventory quantity for each type of a plurality of products.
  • the estimated inventory quantity for each type of product is output via communication/input/output device 530 .
  • the output destination is, for example, a display device at hand of the user.
  • the obtained inventory quantities for each type of product can be stored in the storage device 520 .
  • Storage device 520 may be on the cloud.
  • the processor 510 can further operate as an order quantity determination device 516 that determines the order quantity for each of a plurality of product types based on the estimated inventory quantity and the standard inventory quantity stored in advance, for example, in the storage device 520. .
  • the order quantity may also be output via communication/input/output device 530 and/or stored in storage device 520 .
  • the processor 510 can further operate as an ordering device 518 that orders the ordered quantity of products for which the order quantity has been determined to a supplier stored in advance, for example, in the storage device 520 .
  • Order details (product type, order destination, order quantity, order date and time, etc.) can be output via communication/input/output device 530 and/or can be stored in storage device 520, for example.
  • the inventory management system 400 can be realized by mobile devices, for example.
  • a smart phone or tablet can be provided with an external infrared light source device and an infrared detection device as necessary, and the computer 500 can be realized by installing and executing a corresponding application on the mobile device.
  • Communication/input/output device 530 for example, through Wi-Fi (registered trademark), BLUETOOTH (registered trademark) and/or a telephone line, exchanges data with other computers, storage devices, etc. connected to a network such as the Internet. It can be carried out.
  • FIG. 6 is a flow chart showing an example of the operation of the inventory management system 400. As shown in FIG. 6
  • the inventory management method comprises a step S1 of irradiating a plurality of products placed in the storage space of the storage structure with infrared rays through an optical filter layer; a step S2 of receiving infrared rays reflected by a plurality of products through an optical filter layer, a step S3 of generating infrared information of a plurality of products based on the received infrared rays, and storing the infrared information in advance a step S4 of estimating the inventory quantity for each type of a plurality of products by comparing the obtained information of the plurality of products; A step S5 of determining the order quantity based on the order quantity, and a step S6 of placing an order to a pre-stored order destination for the order quantity of the product for which the order quantity has been decided.
  • the estimated inventory quantity is output to, for example, a display device of a mobile device, and the user can place an order based on the displayed product type and inventory quantity. You may judge whether it is necessary or not.
  • the step S5 of determining the order quantity for example, the order quantity is output to the display device of the mobile device, and the user determines whether or not to place an order based on the displayed product type and order quantity.
  • Step S1 includes step S1-1 of irradiating infrared rays having a predetermined pattern at predetermined timing, and step S2 includes step S2-1 of receiving reflected infrared rays in synchronization with the predetermined timing.
  • step S1-1 of irradiating infrared rays having a predetermined pattern at predetermined timing
  • step S2 includes step S2-1 of receiving reflected infrared rays in synchronization with the predetermined timing.
  • the storage structures 100 and 200 can store stored products in a state where they cannot be seen. It can be suitably used for applications that may impair the In addition, by applying a uniform design to the entirety of the storage structures 100 and 200 including, for example, the front portion, it is possible to create a beautiful appearance or, for example, to increase the user's or customer's sense of security and concentration. You can expect results.
  • the storage structure of the above-described embodiment has an optical filter layer on at least a part of the front part of the side surface, and the optical filter layer makes the products in the storage structure invisible, and uses infrared rays to transmit product information. allows you to obtain
  • the optical filter layer can also be used in other forms.
  • the optical filter layer may be arranged so as to hide at least the front surface (the surface visible to the user) of the housing structure made of a material that transmits infrared rays.
  • the containment structure may be made of a material that at least partially absorbs or reflects visible light.
  • the optical filter layer may be arranged on the front surface of the containment structure as an optical stack with the optical filter layer on the front side.
  • the optical laminate may have an intermediate layer or base layer formed of a material that at least partially reflects or absorbs visible light on the back side of the optical film layers.
  • the substrate layer when a substrate layer formed of a material that transmits visible light (for example, transparent plastic) is used as the substrate layer, visible light is at least partially transmitted between the optical filter layer and the substrate layer.
  • An intermediate layer made of a material that is either positively reflective or absorptive is provided.
  • the optical layered body preferably has a linear transmittance of 40% or more for light of at least part of the wavelength range of 760 nm or more and 2000 nm or less.
  • the optical laminate may further have a decorative layer arranged on the front side of the optical filter layer.
  • the decorative layer can have a design that matches the surrounding design.
  • the design of the decorative layer is not particularly limited and may be, for example, a wood grain pattern, a tile pattern, or a single color.
  • the design of the decorative layer is preferably composed of a material that transmits infrared rays. A material (a coloring material such as an ink) may be used as the material.
  • the decorative layer can be formed, for example, on the optical filter layer by a known method such as printing.
  • the decorative layer can also be formed by laminating a film or the like having a design.
  • the optical laminate may further have a protective layer arranged on the front side of the optical filter layer.
  • the protective layer may be formed on the optical filter layer, or may be formed on the decorative layer when the decorative layer is provided on the front side of the optical filter layer.
  • the protective layer may be, for example, a known hardcoat layer, antiglare layer and/or antifouling layer.
  • the optical laminate may be film-shaped, sheet-shaped or plate-shaped.
  • a flexible film-like or sheet-like optical layered body can be rolled up, for example, when it is not used.
  • the laminate of the optical filter layer and the intermediate layer can also be used in place of the optical filter layer of the housing structure having the optical filter layer according to the above embodiment.
  • the optical layered body is configured so that the commodity or the storage structure is not visible.
  • the detection device is configured so as not to be visually recognized by the user.
  • the inventory control system further includes an infrared light source device
  • the optical laminate is arranged between the user and the infrared light source device and the infrared detection device to make the infrared light source device and the infrared detection device invisible to the user. You can also Except for the infrared detectors (and the infrared detectors) of the inventory control system, the other equipment is usually placed out of sight of the user, thus hiding the entire inventory control system from the user.
  • Such an inventory management system can be used, for example, to determine the number of products displayed in an unmanned convenience store. By grasping the number of displayed products, inventory management of each product can be performed in a timely manner. If there is an infrared detection device (for example, a camera) inside a convenience store, it may intimidate users and spoil the interior design of the store. By using the inventory management system according to this embodiment, the number of displayed products can be grasped sequentially without such disadvantages, and inventory management can be performed in a timely manner.
  • an infrared detection device for example, a camera
  • FIG. 7 Details of the optical filter layer 110 will be described with reference to FIGS. 7, 8 and 9.
  • FIG. 7 Details of the optical filter layer 110 will be described with reference to FIGS. 7, 8 and 9.
  • the optical filter layer 110 preferably used in the containment structures 100, 200 according to embodiments of the present invention is an optical filter layer 110 comprising a matrix and fine particles dispersed in the matrix, wherein the fine particles are at least colloidal amorphous It constitutes an aggregate and has a linear transmittance of 60% or more for light of at least part of the wavelength range of 760 nm or more and 2000 nm or less.
  • the optical filter layer 110 having a linear transmittance of 60% or more for light with wavelengths of 950 nm and 1550 nm.
  • the wavelength range of light (near infrared rays) in which the in-line transmittance of the optical filter layer 110 is 60% or more is preferably, for example, 810 nm or more and 1700 nm or less, more preferably 840 nm or more and 1650 nm or less.
  • both the matrix and the fine particles are preferably transparent to visible light (hereinafter simply referred to as "transparent").
  • the optical filter layer 110 can appear white.
  • the optical filter layer 110 contains colloidal amorphous aggregates.
  • a colloidal amorphous aggregate refers to an aggregate of colloidal particles (particle size of 1 nm to 1 ⁇ m) that does not have long-range order and does not cause Bragg reflection.
  • colloidal particles When colloidal particles are distributed in a long-range order, they become so-called colloidal crystals (a type of photonic crystal), which is in contrast to Bragg reflection. That is, the fine particles (colloidal particles) included in the optical filter layer 110 do not form a diffraction grating.
  • the microparticles included in the optical filter layer 110 include monodisperse microparticles having an average particle diameter of 1/10 or more of the wavelength of infrared rays. That is, the average particle diameter of the fine particles is preferably at least 80 nm or more, preferably 150 nm or more, and more preferably 200 nm or more, for infrared rays having a wavelength in the range of 760 nm or more and 2000 nm or less. Two or more monodisperse microparticles having different average particle diameters may be included. Individual microparticles are preferably approximately spherical.
  • fine particles are also used to mean aggregates of fine particles, and monodisperse fine particles mean that the coefficient of variation (value expressed as a percentage of standard deviation/average particle size) is 20% or less, Preferably 10% or less, more preferably 1 to 5%.
  • the optical filter layer 110 uses particles having a particle diameter (particle diameter, equivalent volume sphere diameter) equal to or greater than 1/10 of the wavelength, thereby increasing the linear transmittance of infrared rays.
  • the average particle size was obtained here based on a three-dimensional SEM image.
  • a focused ion beam scanning electron microscope hereinafter referred to as "FIB-SEM”
  • FIB-SEM focused ion beam scanning electron microscope
  • FIB accelerating voltage: 30 kV
  • the resulting three-dimensional image was binarized using the segmentation function of analysis software (AVIZO manufactured by Thermo Fisher Scientific) to extract the image of the fine particles.
  • AVIZO segmentation function of analysis software
  • the Separate object operation was performed, and then the volume of each microparticle was calculated. Assuming that each particle is a sphere, the diameter equivalent to volume sphere was calculated, and the value obtained by averaging the particle diameters of the fine particles was taken as the average particle diameter.
  • the optical filter layer 110 has a wavelength range of 760 nm or more and 2000 nm or less by adjusting any one of the refractive index of the particles and the matrix, the average particle size of the particles, the volume fraction, the distribution (degree of aperiodicity) and the thickness. 60% or more of the linear transmittance for light of at least part of the wavelengths.
  • the optical filter layer 110 can appear white.
  • L * measured by the SCE method on the CIE1976 color space is preferably 20 or more, more preferably 40 or more, even more preferably 50 or more, and particularly preferably 60 or more. If L * is 20 or more, it can be said to be substantially white. The upper limit of L * is 100, for example.
  • the optical filter layer 110 includes a matrix 112 transparent to visible light and transparent fine particles 114 dispersed in the transparent matrix 112 .
  • Fine particles 114 behave as light scatterers.
  • the optical filter layer 110 includes a layer in which fine particles 114 serving as light scatterers are dispersed in a matrix 112 .
  • Microparticles 114 may, for example, constitute at least colloidal amorphous aggregates. At this time, other fine particles may be included that do not disturb the colloidal amorphous aggregates formed by the fine particles 114 .
  • the optical filter layer 110 has a substantially flat surface, as schematically shown in FIG.
  • substantially flat surface refers to a surface that does not have an uneven structure large enough to scatter (diffract) or diffusely reflect visible light or infrared light.
  • the optical filter layer 110 is, for example, film-like, but is not limited to this.
  • the transparent fine particles 114 are silica fine particles, for example.
  • silica fine particles for example, silica fine particles synthesized by the Stover method can be used.
  • fine particles inorganic fine particles other than silica fine particles may be used, and resin fine particles may be used.
  • resin fine particles for example, fine particles made of at least one of polystyrene and polymethyl methacrylate are preferable, and fine particles made of crosslinked polystyrene, crosslinked polymethyl methacrylate or crosslinked styrene-methyl methacrylate copolymer are preferable. More preferred.
  • fine particles for example, polystyrene fine particles or polymethyl methacrylate fine particles synthesized by emulsion polymerization can be appropriately used.
  • Hollow silica fine particles and hollow resin fine particles containing air can also be used.
  • Fine particles made of an inorganic material have the advantage of being excellent in heat resistance and light resistance.
  • the volume fraction of the whole fine particles (including the matrix and fine particles) is preferably 6% or more and 60% or less, more preferably 20% or more and 50% or less, and even more preferably 20% or more and 40% or less.
  • the transparent microparticles 114 may have optical isotropy.
  • matrix 112 examples include, but are not limited to, acrylics (eg, polymethyl methacrylate, polymethyl acrylate), polycarbonates, polyesters, poly(diethylene glycol bisallyl carbonate), polyurethanes, epoxies, and polyimides. .
  • the matrix 112 is preferably formed using a curable resin (thermosetting or photocurable), and is preferably formed using a photocurable resin from the viewpoint of mass productivity.
  • Various (meth)acrylates can be used as the photocurable resin.
  • (Meth)acrylates preferably include bifunctional or trifunctional (meth)acrylates.
  • the matrix 112 preferably has optical isotropy. When a curable resin containing a polyfunctional monomer is used, the matrix 112 having a crosslinked structure can be obtained, so heat resistance and light resistance can be improved.
  • the optical filter layer 110 in which the matrix 112 is made of a resin material may be flexible and film-like.
  • the thickness of the optical filter layer 110 is, for example, 10 ⁇ m or more and 10 mm or less. If the thickness of the optical filter layer 110 is, for example, 10 ⁇ m or more and 1 mm or less, or further 10 ⁇ m or more and 500 ⁇ m or less, the flexibility can be exhibited remarkably.
  • hydrophilic monomers include polyethylene glycol (meth)acrylate, polyethylene glycol di(meth)acrylate, polyethylene glycol tri(meth)acrylate, polypropylene glycol (meth)acrylate, polypropylene glycol di(meth)acrylate, polypropylene glycol tri(meth)acrylate, ) acrylate, 2-hydroxyethyl (meth)acrylate or 2-hydroxypropyl (meth)acrylate, acrylamide, methylenebisacrylamide, ethoxylated bisphenol A di(meth)acrylate, but not limited to .
  • These monomers may be used singly or in combination of two or more.
  • the two or more types of monomers may include a monofunctional monomer and a multifunctional monomer, or may include two or more types of multifunctional monomers.
  • photopolymerization initiators include carbonyl compounds such as benzoin ether, benzophenone, anthraquinone, thioxane, ketal, and acetophenone; sulfur compounds such as disulfide and dithiocarbamate; organic peroxides such as benzoyl peroxide; azo compounds; complexes, polysilane compounds, dye sensitizers, and the like.
  • the amount to be added is preferably 0.05 to 3 parts by mass, more preferably 0.05 to 1 part by mass, based on 100 parts by mass of the mixture of the fine particles and the monomer.
  • refractive index difference When the refractive index of the matrix for visible light is nM, and the refractive index of the fine particles is nP,
  • the linear transmittance of infrared rays can be adjusted by reducing the thickness. can be done.
  • the infrared in-line transmittance can also be adjusted, for example, by controlling the thickness and refractive index difference of the optical filter layer.
  • it can be used by overlapping with a filter that absorbs infrared rays.
  • the refractive index for visible light can be represented by the refractive index for light of 546 nm, for example.
  • the refractive index refers to the refractive index for light of 546 nm.
  • FIG. 8 is a diagram showing a cross-sectional TEM image of the optical filter layer 110.
  • the white circles in the TEM image in the figure are the silica fine particles, and the black circles are traces of the silica fine particles falling off.
  • silica fine particles are dispersed almost uniformly.
  • FIG. 9 is a graph normalized by the maximum transmittance and shows the incident angle dependency of the linear transmittance spectrum of the optical filter layer 110.
  • FIG. Looking at the transmittance curve of the optical filter layer 110 shown in FIG. 9, the curve portion where the linear transmittance monotonously increases from visible light to infrared rays shifts to the longer wavelength side (about 50 nm) as the incident angle increases. there is In other words, the curve portion where the linear transmittance monotonously decreases from infrared to visible light shifts to the long wavelength side as the incident angle increases.
  • This characteristic incident angle dependence is considered to be due to the fact that the silica fine particles contained in the optical film form colloidal amorphous aggregates.
  • Examples 1 to 12 and Comparative Examples 1 to 3 of the optical filter layer and the optical laminate having the optical filter layer described in the above international application will be described.
  • the optical filter of Example 6 (having an optical filter layer formed on a PET film) described in the above-mentioned international application with the thickness of the optical filter layer changed to 200 ⁇ m was used.
  • the effect on the optical properties of the PET film is slight. are almost the same.
  • the visible light transmissive reflective layer has transmissive and reflective properties that reflect a portion of incident visible light and transmit the remaining visible light.
  • the visible light transmittance of the visible light transmissive reflective layer is preferably 10% to 70%, more preferably 15% to 65%, still more preferably 20% to 60%.
  • the reflectance of the visible light transmissive reflective layer is preferably 30% or higher, more preferably 40% or higher, and even more preferably 45% or higher. With respect to infrared light, it preferably has a transmittance characteristic of 10% or more, more preferably 15% or more, and even more preferably 20% or more.
  • the visible light transmissive reflective layer for example, a half mirror, a reflective polarizer, a louver film, or the like can be used.
  • a multi-layer laminate in which two or more dielectric films having different refractive indices are laminated can be used.
  • Such half mirrors preferably have a metallic luster.
  • Materials for forming the dielectric film include metal oxides, metal nitrides, metal fluorides, thermoplastic resins (eg, polyethylene terephthalate (PET)), and the like.
  • a multilayer laminate of dielectric films reflects a part of incident light at an interface due to the difference in refractive index between the laminated dielectric films. The reflectance can be adjusted by changing the phase of the incident light and the reflected light by adjusting the thickness of the dielectric film and adjusting the degree of interference between the two lights.
  • the thickness of the half mirror composed of the half mirror layer laminate can be, for example, 50 ⁇ m or more to 200 ⁇ m.
  • a commercially available product such as Toray's product name "Picasus” can be used.
  • a reflective polarizer has the function of transmitting polarized light in a specific polarization state (polarization direction) and reflecting light in other polarization states.
  • the reflective polarizer may be linearly polarized or circularly polarized, but linearly polarized is preferred.
  • the linear polarization separation type reflective polarizer is arranged so that the reflection axis direction is substantially parallel to the absorption axis direction of the absorption polarizer (specifically, the first polarizer and the second polarizer). placed.
  • linearly polarized light separation type reflective polarizer for example, the one described in JP-A-9-507308 can be used.
  • examples of commercially available products include Nitto Denko's trade name "APCF", 3M trade name "DBEF”, and 3M trade name "APF”.
  • a commercially available product may be used as it is, or a commercially available product may be used after secondary processing (for example, stretching).
  • Examples of the circularly polarized light separation type reflective polarizer include a laminate of a film in which cholesteric liquid crystal is fixed and a ⁇ /4 plate. A wire grid type polarizing layer can also be used.
  • An intermediate layer that at least partially absorbs visible light is sometimes called a visible light absorbing layer.
  • the visible light absorption layer is formed of, for example, black ink that transmits infrared rays. Visible light transmittance can be adjusted by changing the thickness of the visible light absorption layer.
  • An optical laminate having an intermediate layer that at least partially reflects or absorbs visible light is preferably used in embodiments that hide the infrared detection device or the like from the user.
  • Table 1 shows the optical properties of the optical layered bodies of Examples 1 to 12, and Table 2 shows the results of evaluating the optical properties of the optical layered bodies of Comparative Examples 1 to 4.
  • VIS non-visibility is defined as good (o) when the object (product) cannot be clearly visually recognized through each optical filter, and poor (x) when the object is clearly visible.
  • IR visibility for example, using an infrared camera, through each optical filter, the object (product) can be clearly visually recognized as good ( ⁇ ), and if the object cannot be clearly seen, it is bad ( ⁇ ) ).
  • the VIS diffuse transmittance and the VIS direct transmittance represent the transmittance of visible light in the wavelength range of 350 nm or more and 780 nm or less, and the IR linear transmittance represents the transmittance of infrared rays (near infrared rays) in the wavelength range of 780 nm or more and 1350 nm or less. represent.
  • the diffuse transmittance is the transmittance measured with the optical layered body placed in the opening of the integrating sphere, and correlates with the visibility in the state where the optical layered body is in contact with the object (product) (distance is 0 cm). .
  • the linear transmittance is the transmittance measured when the optical layered body is placed at a certain distance (for example, 20 cm) from the opening of the integrating sphere. Correlates with visibility in the deployed state.
  • a spectroscope an ultraviolet-visible-near-infrared spectrophotometer UH4150 (manufactured by Hitachi High-Tech Science Co., Ltd.) was used.
  • Comparative Example 1 is a cloudy plastic plate (made of polystyrene, thickness 0.5 mm).
  • the VIS linear transmittance is as low as 24%, and the VIS non-visibility is ⁇ , but the IR linear transmittance is low, so the IR visibility is ⁇ .
  • Comparative Example 2 corresponds to Comparative Example A described in the above international application and corresponds to the optical article described in JP-A-2013-65052. Comparative Example 2 has a low VIS linear transmittance of 11% and good VIS non-visibility, but a low IR linear transmittance of 33% and a poor IR visibility.
  • Comparative Example 3 is an optical layered body having a metal thin film, and does not transmit visible light or infrared light. Therefore, the VIS non-visibility is ⁇ , but the IR visibility is x.
  • Comparative Example 4 is a transparent plastic plate (made of PET, thickness 0.5 mm). As a matter of course, since it transmits visible light, the VIS non-visibility is x, but the near infrared transmittance is high and the IR visibility is ⁇ .
  • the VIS linear transmittance is 20% or less
  • the IR linear transmittance is 40% or more
  • both VIS non-visibility and R visibility are ⁇ is.
  • Example 1 is the optical filter described above (the thickness of Example 6 of the above international application is 200 ⁇ m) and has a high NIR linear transmittance.
  • the VIS in-line transmittance is 20% or less and has sufficient VIS non-visibility.
  • the VIS diffuse transmittance is as high as 39% and the color is white. Therefore, by arranging the decorative layer, it is possible to provide a design including various colors.
  • Example 2 is an optical laminate having the above optical filter and a linearly polarized light separation type reflective polarizer.
  • Example 3 is an optical laminate having the optical filter and the wire grid type reflective layer.
  • Example 4 is an optical laminate having the above optical filter and a half mirror composed of a dielectric multilayer film so as to transmit infrared rays.
  • Example 5 is an optical laminate having the above optical filter and a half mirror composed of a dielectric multilayer film with visible light transmittance adjusted to 50%.
  • Example 6 is an optical laminate having the above optical filter and a visible light absorption layer formed using IR transmissive black ink (thickness: 6 ⁇ m).
  • Example 7 is an optical laminate having the above optical filter and a visible light absorption layer formed using IR transmissive black ink (thickness: 2 ⁇ m).
  • Example 8 is an optical laminate having the above optical filter and a cyan decorative layer.
  • Example 9 is an optical laminate having the above optical filter and a magenta decorative layer.
  • Example 10 is an optical laminate having the above optical filter and a yellow decorative layer.
  • Example 11 is an optical laminate having the above optical filter and a black decorative layer.
  • Example 12 is an optical laminate having the above optical filter and a decorative layer with a wood grain pattern.
  • the storage container and/or the inventory management system according to the embodiment of the present invention has the optical filter layer having the characteristics described above.
  • Product information can be acquired.
  • the inventory management system according to another embodiment of the present invention has the optical filter layer having the characteristics described above, it is invisible to the user and does not intimidate the user. In addition, the interior design of the store is not spoiled.
  • the storage structure, inventory management system, and inventory management method according to the embodiments of the present invention are preferably used in warehouses and stores.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Warehouses Or Storage Devices (AREA)
PCT/JP2022/036246 2021-09-30 2022-09-28 収納構造体、在庫管理システムおよび在庫管理方法 WO2023054505A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2023551621A JPWO2023054505A1 (enrdf_load_stackoverflow) 2021-09-30 2022-09-28

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202163250400P 2021-09-30 2021-09-30
US63/250,400 2021-09-30

Publications (1)

Publication Number Publication Date
WO2023054505A1 true WO2023054505A1 (ja) 2023-04-06

Family

ID=85780740

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/036246 WO2023054505A1 (ja) 2021-09-30 2022-09-28 収納構造体、在庫管理システムおよび在庫管理方法

Country Status (3)

Country Link
JP (1) JPWO2023054505A1 (enrdf_load_stackoverflow)
TW (1) TW202321977A (enrdf_load_stackoverflow)
WO (1) WO2023054505A1 (enrdf_load_stackoverflow)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0181682U (enrdf_load_stackoverflow) * 1987-11-20 1989-05-31
JP2013186334A (ja) * 2012-03-08 2013-09-19 Dainippon Printing Co Ltd 印刷物、および検査方法
WO2021187430A1 (ja) * 2020-03-16 2021-09-23 日東電工株式会社 光学フィルタ、その製造方法および光学モジュール

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0181682U (enrdf_load_stackoverflow) * 1987-11-20 1989-05-31
JP2013186334A (ja) * 2012-03-08 2013-09-19 Dainippon Printing Co Ltd 印刷物、および検査方法
WO2021187430A1 (ja) * 2020-03-16 2021-09-23 日東電工株式会社 光学フィルタ、その製造方法および光学モジュール

Also Published As

Publication number Publication date
TW202321977A (zh) 2023-06-01
JPWO2023054505A1 (enrdf_load_stackoverflow) 2023-04-06

Similar Documents

Publication Publication Date Title
US11465389B2 (en) Decorative member
US20190212481A1 (en) Display and article with label
US20210022475A1 (en) Decorative member
JP7009677B1 (ja) 光学フィルタ、その製造方法および光学モジュール
KR20160105442A (ko) 시준 반사 편광기를 포함하는 광학 필름
CN106461820A (zh) 光扩散性片及包含该片材的背光装置
US9880332B2 (en) Decorative microsphere articles with information layer
CN107195248A (zh) 光学组件和显示装置
JP2015090959A (ja) 発光装置および表示装置
JP2022078336A (ja) 光学フィルタ、その製造方法および光学モジュール
EP3593204A1 (en) Diffractive antiglare in a multi-layered display
WO2023054505A1 (ja) 収納構造体、在庫管理システムおよび在庫管理方法
JP7044952B2 (ja) 光学フィルタ、その製造方法および光学モジュール
WO2023080016A1 (ja) 光学積層体およびシステム
WO2023074626A1 (ja) 光学積層体、赤外線情報取得システム、および会議支援システム
JP2024051540A (ja) 光学積層体
WO2023008087A1 (ja) 赤外線セキュリティシステム、赤外線発光制御システムおよび意匠ユニット
WO2024190298A1 (ja) 光学フィルタ、検出装置および光学積層体
JP2024050300A (ja) 真贋判定方法、隠蔽シールおよび真贋判定システム
JP2024158933A (ja) 表示装置、電子機器
TW202447243A (zh) 液晶顯示裝置、電子機器
CN117751396A (zh) 红外线安全系统、红外线发光控制系统以及设计单元
KR20200036497A (ko) 장식 부재

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22876371

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2023551621

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22876371

Country of ref document: EP

Kind code of ref document: A1