JP2007304189A - Method of manufacturing image recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing an image recording medium for efficiently manufacturing the image recording medium by suppressing emission of light from an empty space between lenses. <P>SOLUTION: The method includes: an image output step in which image information 12 composed of a plurality of parallax image groups of different visual points is formed on one of the external surfaces of a transparent support (transparent support 10) in a matrix-form; a photothermal conversion layer forming step in which a photothermal conversion layer (photothermal conversion layer 20) having a light shielding property is formed on the other external surface of the transparent support; a minute through-hole formation step in which a plurality of minute through-holes (minute through-holes 22) from which the transparent support is exposed are formed in the position on the photothermal conversion layer corresponding to the matrix-like arrangement position of image information; and a lens array formation step in which a minute lens array is formed by filling the plurality of minute through-holes with a lens formation resin (photo-curable resin 31). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an image recording body manufacturing method, and more particularly to an image recording body manufacturing method in which image information composed of a plurality of parallax image groups having different viewpoints is recorded in a matrix.

Conventionally, various techniques for stereoscopic display have been studied. As a technique that enables this stereoscopic display, an integral photography system (hereinafter referred to as an IP system) that reproduces a stereoscopic image using a plurality of different parallax images is known. In the IP system, stereoscopic vision is performed by using a special lens called a fly-eye lens having a structure similar to an insect compound eye and observing a plurality of different parallax images through the fly-eye lens. Conventionally, as this fly-eye lens, a minute lens group (a minute lens array) formed by droplets ejected onto a light transmissive sheet by an ink jet printer is used. In the method using this fly-eye lens (micro lens array), a parallax image is observed from the gap between the lens portions, so that the reproduced stereoscopic image has a sharp and blurry impression, and the quality of stereoscopic vision is degraded. There is a problem of doing. For this reason, conventionally, a technique has been proposed in which a control material that controls the straightness of light is applied to the gaps between the lens parts of the lens array, thereby suppressing light emitted straight from the gaps between the lens parts. (For example, refer to Patent Document 1).
JP 2004-361441 A

  However, in the technique of Patent Document 1, the gap between the lens portions formed on the substrate is made lyophilic and liquid-repellent with respect to the lens portions, and then a control material is applied to the gap between the lens portions. Therefore, the manufacturing method becomes complicated, and there is a problem that the time and cost for manufacturing increase.

  The subject of this invention is providing the manufacturing method of the image recording body which can manufacture efficiently the image recording body which suppressed the emitted light from between lens parts.

In order to solve the above-mentioned problem, the invention described in claim 1
An image output step of recording image information formed by a plurality of parallax image groups having different viewpoints on the outer surface of the first transparent support in a matrix;
A photothermal conversion layer forming step of forming a photothermal conversion layer having a light-shielding property on the outer surface of the second transparent support laminated on the first transparent support;
Forming a plurality of micro-hole portions where the second transparent support is exposed at positions corresponding to the matrix-like arrangement positions of the image information in the photothermal conversion layer; and
A lens forming step of forming a microlens array by filling a lens-forming resin into the plurality of micropores;
It is characterized by including.

Moreover, in order to solve the said subject, invention of Claim 2 is the following.
An image output step of recording image information formed by a plurality of parallax image groups having different viewpoints on one outer surface of the transparent support in a matrix;
A photothermal conversion layer forming step of forming a photothermal conversion layer having a light shielding property on the other outer surface of the transparent support;
Forming a plurality of micro-pores that expose the transparent support at positions corresponding to the matrix-like arrangement positions of the image information in the photothermal conversion layer; and
A lens forming step of forming a microlens array by filling a lens forming resin into the plurality of microscopic holes;
It is characterized by including.

Furthermore, the invention according to claim 3 is the invention according to claim 1 or 2,
The lens forming resin is a photocurable resin,
It includes a light irradiating step of irradiating light to the lens forming resin filled in the minute through holes.

Furthermore, the invention according to claim 4 is the invention according to any one of claims 1 to 3,
The surface energy of the photothermal conversion layer is larger than the surface energy of the lens forming resin.

Furthermore, the invention according to claim 5 is the invention according to claim 1 or 2,
The minute through hole forming step is characterized in that the minute through hole is formed by a laser ablation method.

  According to the first aspect of the present invention, the light-to-heat conversion layer having a light shielding property is formed on the outer surface of the second transparent support laminated on the first transparent support on which the image information is recorded, and the image A microlens array is formed by filling a lens forming resin in the microscopic holes formed in the photothermal conversion layer according to the position of information. As a result, it is possible to simplify the manufacturing method related to the image recording body, so that it is possible to reduce the time and cost required for manufacturing, and the image recording body in which the light emitted from between the lens portions is suppressed can be efficiently produced. Can be manufactured.

  According to the second aspect of the present invention, a light-to-heat conversion layer having a light-shielding property is formed on the other outer surface of the transparent support on which image information is recorded on one outer surface, and according to the position of the image information. A microlens array is formed by filling a lens-forming resin in the micropores formed in the photothermal conversion layer. As a result, it is possible to simplify the manufacturing method related to the image recording body, so that it is possible to reduce the time and cost required for manufacturing, and the image recording body in which the light emitted from between the lens portions is suppressed can be efficiently produced. Can be manufactured.

  According to the third aspect of the present invention, the lens forming resin can be cured by irradiating the lens forming resin filled in the micro-holes of the photothermal conversion layer with light.

  According to the invention described in claim 4, since the surface energy of the photothermal conversion layer is larger than the surface energy of the lens forming resin, the surface energy of the lens forming resin is determined by the contact angle with the photothermal conversion layer and the surface tension of the lens forming resin. Since the resin exhibits a plano-convex lens shape, a minute lens array having a plano-convex lens shape can be easily formed.

  According to the fifth aspect of the present invention, the minute through hole can be formed by a laser ablation method.

  The best mode for carrying out the present invention will be described below with reference to the drawings. However, the scope of the present invention is not limited to the illustrated examples.

  FIG. 1 is a diagram showing a manufacturing process of an image recording body according to the present invention. As shown in the figure, the manufacturing process of the image recording body includes an IP image generation step S1 for generating a stereoscopic image display image, and an IP image output for recording the generated stereoscopic image display image on a light transmissive transparent support. Step S2 includes a lens forming step S3 for forming a microlens array on the transparent support on which a stereoscopic image display image is recorded.

  In this embodiment, as a method for generating a stereoscopic image display image, a generation method using an integral photography (IP) method is used. In this IP system, a stereoscopic image display image in which image information that covers a moving viewpoint area of an assumed observer is recorded is used. This method reproduces both the binocular parallax and the moving parallax. In particular, it has the vertical parallax information in addition to the horizontal parallax, so that there is less dependency on the observation position, and stereoscopic display corresponding to viewpoint movement in all directions can be achieved. It becomes possible. Further, even if the arrangement method of image information with different parallax is different from that of the IP method, it may be a stereoscopic image display image having an equivalent function. The displayed stereoscopic image may be a still image, or a stereoscopic image display image for obtaining a pseudo moving image, and a pseudo moving image by a plurality of frames, such as when the observer moves and looks like a pseudo moving image. It includes a stereoscopic image display image that can be observed. Hereinafter, the stereoscopic image display image is referred to as an IP image.

  FIG. 2 is a diagram showing each step included in the IP image generation step S1. As shown in the figure, the IP image generation step S1 includes an input step S11, a multi-viewpoint image rendering step S12, and an IP image processing step S13. Hereinafter, each process of IP image generation process S1 is demonstrated.

  In order to generate an IP image, a plurality of two-dimensional images (hereinafter referred to as parallax images) with different viewpoints are required. In the input step S11, the parallax image group is input. As the parallax image group input in the input step S11, for example, there is a real image captured by a digital camera or the like as described above. In this case, taking a subject to be photographed as a gazing point, shoot with a plurality of cameras arranged at regular intervals in a plane space in which a straight line connecting the gazing point and the camera becomes a perpendicular line, or move the cameras and shoot. As a result, a group of parallax images centered on the gazing point can be obtained. When such a parallax image obtained by actual shooting is obtained, an IP image can be directly generated in the IP image processing step S13.

  In the input step S11, the stereoscopic display target is converted into data by a method such as photographing or measurement, and the predetermined simulation (calculation) is performed by a calculation means such as a CPU in the subsequent multi-viewpoint image rendering step S12. Thus, a parallax image can be generated. In this case, as a means used for inputting data in the input step S11, a non-contact type three-dimensional data input device such as a three-dimensional scanner, for example, VIVID9i manufactured by Konica Minolta can be used. As another method, there is a method of generating three-dimensional data by performing image analysis or the like on a group of parallax images based on real images. Alternatively, when the stereoscopic display target is a product, a logo, a CG character, or the like, and 3D data such as 3DCAD or 3DCG exists in advance, this data may be directly input.

  In the multi-viewpoint image rendering step S12, for example, commercially available 3DCG software (program) can be used. Suitable software includes 3DCG software such as shade, maya, 3dstudioMAX. With these 3DCG software, it is possible to obtain a parallax image group by importing the three-dimensional data input in the input step S11 and photographing (rendering) the obtained shape data from a plurality of viewpoints in the virtual space. Thereby, a parallax image group equivalent to the parallax image group obtained by actual shooting of the digital camera described above can be obtained.

  In the IP image processing step S13, when viewed through a pinhole or a lens, an IP image is generated by rearranging the parallax image groups so that images of different viewpoints can be seen with both eyes and re-image synthesis. . As this image processing method, any means including known methods can be used.

  FIG. 3 is a diagram for explaining generation of an IP image for obtaining the stereoscopic image described in FIG. Here, parallax images 11 each having 180 × 180 pixels for one viewpoint are collected for 32 vertical viewpoints × 32 horizontal viewpoints = 1024 viewpoints, and this parallax image group is respectively located at a position corresponding to each viewpoint observed from one lens. An example is shown in which a single IP image 13 is generated by arranging the image information 12 in a matrix.

  Note that the number of pixels indicating the resolution per viewpoint is not limited to the above example, and can be arbitrarily changed according to the IP image to be generated, and a predetermined image area included in the IP image. It is good also as changing according to. For example, in FIG. 4, the resolution per viewpoint of the image area A <b> 1 showing a cloud can be made different from those of other image areas. The number of viewpoints is not limited to the above example, and can be arbitrarily changed according to the IP image to be generated, and changed according to a predetermined image area included in the IP image. It is good. For example, in FIG. 4, the number of viewpoints of the image area A2 indicating the leftmost tree in the figure can be made different from those of other image areas.

  In the subsequent IP image output step S2, the IP image 13 generated in the IP image generation step S1 is output (recorded) on the light transmissive transparent support 10. Examples of the transparent support used in the IP image output step S2 include a silver salt (transmission) observation photosensitive material (the observation photosensitive material is a plastic film support (preferably a transmission type support)) and the like. As the formation method, for example, an inkjet method, an electrophotographic method, a printing method, or the like can be used, but a silver salt method using a silver salt photosensitive material that is a density gradation reproduction method capable of obtaining a high maximum density. In addition, an ink jet system that can obtain a high-density transmission image such as a solvent pigment type is particularly preferable.

Examples of the color light-sensitive material used in the silver salt method include the following.
First, a silver halide color photographic light-sensitive material is exemplified. The light-sensitive material may be any known material as long as it has at least three types of photosensitive layers having different absorption wavelength ranges from each other on the light-transmissive support. It is preferably a transmitted light observation type silver halide color photographic light-sensitive material on which an image is formed.

  The silver halide color photographic light-sensitive material used in the present invention may be a color negative film or a color positive film for photographing, or may be any of photographic paper for printing and a transmissive printing film for display. One preferred embodiment of the silver halide light-sensitive material that can be used in the present invention is a large-size color positive film. Another aspect is a color film for creating a transmissive display, and a display film particularly suitable for digital exposure is preferable. For example, Konica Minolta Display Film Clear ForDIGITAL Type 1 can be used. As an apparatus for performing this digital exposure, for example, a laser exposure machine lambda manufactured by Durst can be used. When a higher resolution IP image is required, it is preferable to combine analog close-up and dupe exposure methods.

  The composition of the silver halide emulsion that can be used in the present invention has an arbitrary halogen composition such as silver chloride, silver bromide, silver chlorobromide, silver iodobromide, silver chloroiodobromide, and silver chloroiodide. It may be a thing. For example, it may be a silver iodobromide emulsion mainly used for a photographic material. Further, it may be a silver chlorobromide emulsion containing 95 mol% or more of silver chloride used for a printing light-sensitive material, and is particularly preferably an emulsion that is optimal for digital exposure with improved high illumination exposure suitability.

  The color material used in the present invention is not limited to the above, and any known material may be used as long as it is a recording material having a dye or a dye precursor. For example, an optical recording material capable of obtaining a high-quality color image with an azomethine dye by simple equal lye treatment, specifically, a microcapsule enclosing a dye precursor of an azomethine dye having a specific structure; And an optical recording material in which an oil droplet containing a photopolymerization initiator and a polymerizable electrophile and a photosensitive layer containing a binder are provided on a transparent support. And what a photoinitiator is a chaotic dye / anionic boron compound complex is mentioned as a preferable example.

  This image forming method using an optical recording material comprises a transparent support, a microcapsule encapsulating a dye precursor, oil droplets containing a polymerizable electrophile and a photopolymerization initiator, and a photosensitive layer containing a binder. The image is exposed imagewise, radicals are generated from the exposed photopolymerization initiator, the radicals are added to the polymerizable electrophile to initiate polymerization, and the polymerizable electrophile is image-immobilized. To do. Thereafter, the unpolymerized electrophile and the dye precursor are brought into contact and reacted by heating to obtain a dye image.

  Various compounds can be used as the dye precursor used for this. Specifically, there are dye precursors for obtaining azomethine dyes. Then, microencapsulation by polymerization of reactants from the inside of the oil droplets of the dye precursor, oil droplets obtained by emulsifying and dispersing the oil phase in a water-soluble polymer after dissolving the oil phase in a volatile solvent such as ethyl acetate, oxime Functional groups and polymerizable groups that undergo photopolymerization initiators such as esters, peroxides, organic sulfur compounds, halides, or phosphine oxide compounds that undergo direct photolysis, nucleophilic substitution reactions or nucleophilic addition reactions. A dye image can be obtained by a method using a polymerizable electrophile or the like which is a compound possessed together.

  This optical recording material combines a plurality of photopolymerization initiators having different photosensitive wavelengths and a plurality of dye precursors having different colors to form a multicolor or full-color image. For example, an optical recording material for forming a full-color image can be obtained by laminating three photosensitive layers that are colored in cyan, magenta, and yellow and have different photosensitive wavelengths. An intermediate layer may be provided between the layers, and a protective layer, a filter layer, and the like may be provided.

  When selecting an exposure light source, of course, a light source suitable for the photosensitive wavelength of the optical recording material is selected, but whether the image information passes through an electrical signal, the overall processing speed, compactness, power consumption, etc. You can choose in consideration.

  When recording image information via an electrical signal, a light emitting diode or various lasers may be used as the image exposure device, or various devices known as image display devices (CRT, liquid crystal display, x-ray luminescence). Display, electrochromic display, plasma display, etc.) can also be used. In this case, the image information includes an image signal obtained from a video camera or an electronic still camera, a television signal typified by the Nippon Television Signal Standard (NTSC), and an image signal obtained by dividing an original image into a large number of pixels by a scanner or the like. In addition, image signals stored in recording materials such as magnetic tapes and disks can be used.

  When exposing color images, LEDs, lasers, fluorescent tubes, etc. are used in combination according to the color sensitivity of the optical recording material, but the same may be used in combination, or different types may be used in combination. Also good. The color sensitivity of optical recording materials is usually R (red), G (green), B (blue) in the photographic field, but in recent years, UV, IR, etc. are often used in combination. The range of use is expanding. For example, the color sensitivity of the optical recording material is (G, R, IR), (R, IR (short wave), IR (long wave)), (UV (short wave), UV (medium wave), UV (long wave). ), (UV, B, G) and other spectral regions are used. The light source may also be a combination of different types such as a combination of two LED colors and a laser. The arc tube or element may be scanned and exposed using a single tube or element for each color, or an array in order to increase the exposure speed. Available arrays include LED arrays, liquid crystal shutter arrays, magneto-optical element shutter arrays, and the like.

  Further, a blue light-emitting diode that has recently made remarkable progress, and a light source combined with a green light-emitting diode and a red light-emitting diode can be used.

  As the image display device, there are a color display type and a monochrome display type such as a CRT (Cathode Ray Tube), but it is possible to adopt a method in which a monochrome display type is combined with a filter to perform exposure several times. Good. An existing two-dimensional image display device may be used in a one-dimensional manner like FOT, or may be used in combination with scanning by dividing one screen into several. As a heating means, a heating element layer may be provided on the surface of the support on which the photosensitive layer of the optical recording material is not coated, and heating may be performed. Furthermore, a heating plate, an iron, a heating roller, or a method of heating an optical recording material between a heating roller and a belt may be used.

  That is, the optical recording material may be brought into contact with a heating element having a surface area larger than the area of the optical recording material, and the entire surface may be heated simultaneously, or a heating element having a smaller surface area (hot plate, heating roller, heating drum, etc.) And the entire surface may be heated over time. In addition to the heating method in which the heating element and the optical recording material are in direct contact as described above, electromagnetic waves, infrared rays, hot air or the like can be applied to the optical recording material and heated in a non-contact state. In the image formation of the present invention, when the optical recording material is heated from the surface on which the photosensitive layer is not coated, the surface on which the photosensitive layer is coated is in direct contact with air. However, in order to prevent moisture and volatile components from evaporating from the optical recording material and to keep the heat from escaping, it may be covered with a heat insulating material or the like.

  The heating is preferably performed after 0.1 second or more has passed after imagewise exposure. The heating temperature is generally 60 ° C. to 250 ° C., preferably 80 ° C. to 180 ° C., and the heating time is between 0.1 seconds and 5 minutes. Moreover, you may heat twice or more at different temperature.

Next, the heat-sensitive recording material used in the present invention will be described.
The heat-sensitive recording material may be any known heat-sensitive recording material containing a dye or a dye precursor. For example, a first thermosensitive coloring layer containing an electron donating dye precursor and an electron accepting compound as main components on a transparent support, a diazonium salt compound having a maximum absorption wavelength of 360 ± 20 nm, the diazonium salt compound and heat A second thermosensitive color-developing layer containing a coupler that develops color upon reaction; a third containing a diazonium salt compound having a maximum absorption wavelength of 400 ± 20 nm; and a coupler that develops color upon reaction with the diazonium salt compound Multi-color heat-sensitive recording materials obtained by sequentially laminating heat-sensitive color-developing layers are prepared. A heat-sensitive recording material in which a plurality of electron-donating dye precursors and an electron-accepting compound coexist is prepared, and each electron-donating dye precursor is prepared. An attempt has been made to obtain images of different hues by applying different temperatures using different color development start temperatures, and a thermal recording layer that develops colors in different hues has been proposed. There has been proposed an attempt to obtain a two-color-colored heat-sensitive recording material by laminating two layers so that the upper layer at a low temperature, the upper layer at a high temperature, and the lower layer are both colored, and comprises a diazonium salt compound and a coupler on a transparent support. A multicolor thermosensitive recording material has been proposed in which a first thermosensitive coloring layer, an intermediate layer containing a polyether compound, and a second thermosensitive coloring layer comprising a basic dye precursor and an electron accepting compound are laminated. In a two-color thermosensitive recording material in which two thermosensitive coloring layers consisting of a dye precursor and an electron-accepting compound are laminated, guanidines, which are organic base compounds, are added to the low-temperature coloring layer, and low-temperature coloring is performed when the high-temperature coloring layer is colored A method of decolorizing the color of the layer was proposed, and a high-temperature thermosensitive coloring layer composed of an acidic dye precursor and an organic base compound on a transparent support, and a low temperature composed of a basic dye precursor and an electron-accepting compound. The color layer was laminated, multi-color heat-sensitive recording material in which the organic base compound of the lower layer is decolorized the color body diffused in the upper layer have been proposed at a high temperature printing.

  As one of the methods for reproducing a full-color image by direct thermal recording, a thermal recording layer 2 in which two diazonium salts having different photosensitive wavelengths and couplers that react with each of the diazonium salts and develop colors in different hues upon heating are combined. There is also known a heat-sensitive recording material that can reproduce a good multicolor image by laminating a layer and a heat-sensitive recording layer combining a basic dye precursor and an electron-accepting compound, and any of the above can be used in the present invention. It is.

  In the subsequent lens formation step S3, the microlens array 30 corresponding to the IP image 13 is formed (laminated) on the transparent support 10, and the photothermal conversion layer 20 is formed between the lens portions of the microlens array 30. FIG. 5 is a diagram showing each process included in the lens forming process S3. FIG. 6 is a diagram for explaining the lens forming step S3. As shown in FIG. 5, the lens forming step S3 includes a photothermal conversion agent coating step S31, a photothermal conversion agent drying step S32, a minute hole forming step S33, a lens resin discharge step S34, and a UV light irradiation step S35.

  First, in the photothermal conversion agent coating step S31, the other outer surface of the surface of the transparent support 10 facing the one outer surface on which the IP image is recorded, that is, the IP image recording surface (hereinafter referred to as the IP image recording surface). The photothermal conversion agent 21 having a light shielding property is applied to the back surface side (hereinafter referred to as a lens forming surface) of the image recording surface. And in the subsequent photothermal conversion agent drying process S32, the photothermal conversion layer 20 is formed by drying the apply | coated photothermal conversion agent 21 (refer Fig.6 (a)). Here, as a method of applying the photothermal conversion agent 21, a die coater, a roll coater, an ink jet method, or the like can be used.

  In the present embodiment, the surface energy of the photothermal conversion layer 20 (photothermal conversion agent 21) is smaller than the surface energy of the transparent support 10. In this embodiment, a black pigment such as carbon black or titanium black is used as the photothermal conversion agent 21. However, the present invention is not limited to this, and part or all of the transmitted light of the transparent support 10 is shielded. It is good also as using the pigment which has the transmission density (for example, 0.7 or more) which can be used, and it is more preferable to use the pigment which has the transmission density of 1.5 or more prescribed | regulated to JISK7651.

  In the succeeding minute hole forming step S33, the photothermal conversion layer 20 is subjected to heat treatment by a laser ablation method at a predetermined position of the photothermal conversion layer 20 formed on the transparent support 10 by a laser output device (not shown). A plurality of minute through holes 22 from which the transparent support 10 is exposed is formed. Here, various setting values relating to the operation of the laser output device were recorded on the image recording surface of the transparent support 10 as shown in FIG. It is assumed that the position and size (image pitch P) corresponding to the image information 12 are adjusted in advance.

  Subsequently, in the lens resin discharge step S34, the light-transmitting photocurable resin 31 is discharged as droplets from an ink jet type liquid discharge head (not shown), and the droplets are micro-perforated portions 22 of the photothermal conversion layer 20. To fill. Here, the surface energy of the photocurable resin 31 is smaller than the surface energy of the photothermal conversion layer 20. Thereby, the filled droplets of the photocurable resin 31 exhibit a plano-convex lens shape as shown in FIG. 6C due to the contact angle with the photothermal conversion layer 20 and the surface tension of the photocurable resin 31. become.

  As said photocurable resin 31, acrylic resin is suitable. Specific examples of the basic composition of the acrylic resin include a prepolymer or oligomer, a monomer, and a photopolymerization initiator.

  Examples of the prepolymer or oligomer include epoxy acrylates, urethane acrylates, polyester acrylates, polyether acrylates, acrylates such as spiroacetal acrylates, epoxy methacrylates, urethane methacrylates, polyester methacrylates, and polyethers. Methacrylates such as methacrylates can be used.

  Examples of the monomer include 2-ethylhexyl acrylate, 2-ethylhexyl methacrylate, 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, N-vinyl-2-pyrrolidone, carbitol acrylate, tetrahydrofurfuryl acrylate, isobornyl acrylate, Monofunctional monomers such as dicyclopentenyl acrylate and 1,3-butanediol acrylate, 1,6-hexanediol diacrylate, 1,6-hexanediol dimethacrylate, neopentyl glycol diacrylate, neopentyl glycol dimethacrylate, ethylene Bifunctional monomers such as glycol diacrylate, polyethylene glycol diacrylate, pentaerythritol diacrylate, and trimethylo Propane triacrylate, trimethylol propane trimethacrylate, pentaerythritol triacrylate, polyfunctional monomers such as dipentaerythritol hexaacrylate available.

  Examples of the photopolymerization initiator include acetophenones such as 2,2-dimethoxy-2-phenylacetophenone, butylphenones such as α-hydroxyisobutylphenone and p-isopropyl-α-hydroxyisobutylphenone, and p-tert-butyl. Halogenated acetophenones such as dichloroacetophenone, p-tert-butyltrichloroacetophenone, α, α-dichloro-4-phenoxyacetophenone, benzophenones such as benzophenone, N, N-tetraethyl-4,4-diaminobenzophenone, benzyl, benzyl Benzyls such as dimethyl ketal, benzoins such as benzoin and benzoin alkyl ether, oximes such as 1-phenyl-1,2-propanedione-2- (o-ethoxycarbonyl) oxime, 2-methyl Thioxanthones, xanthones such as 2-chlorothioxanthone, radical generating compounds such as Michler's ketone can be used.

  In the present embodiment, a photocurable resin that is cured by ultraviolet rays is used. However, the present invention is not limited to this, and other curable resins such as a thermosetting resin and a moisture reaction curable resin may be used. In that case, it is assumed that a curing process step according to the curing characteristic is included instead of the UV light irradiation step S35 described later.

In the UV light irradiation step S35, ultraviolet rays emitted from light emitting means (not shown) such as a fluorescent tube and a lamp are irradiated to the photocurable resin 31 filled in the micro-holes 22 of the photothermal conversion layer 20, The photocurable resin 31 is cured to form the microlens array 30.
By passing through the manufacturing process of step S31-S35 mentioned above, the photothermal conversion layer 20 and the micro lens array 30 are formed (laminated | stacked) on the lens formation surface of the transparent support body 10, and the one image recording body 100 is manufactured.

  FIG. 7 is a diagram showing the image recording body 100 manufactured by the manufacturing process described above. 7A is a top view of the image recording body 100, FIG. 7B is a side view of FIG. 7A viewed from the side, and FIG. 7C is a side view of FIG. It is a bottom view when seen.

  As shown in FIG. 7, since the lens portions of the micro lens array 30 are covered with the photothermal conversion layer 20, it is possible to suppress light emitted straight from the gap between the lens portions. Further, since each lens portion of the micro lens array 30 is formed at a position and a size corresponding to the image information 12 recorded on the image recording surface, the quality of the reproduced stereoscopic image can be improved. In addition, as shown in FIG.7 (b), the quantity of the photocurable resin 31 discharged is controlled so that the focus of a lens part corresponds with the image information 12 (IP image 13) of the transparent support body 10. FIG. Preferably it is.

  As described above, according to the above-described embodiment, the light-heat conversion layer 20 having a light-shielding property is formed on the other outer surface of the transparent support 10 on which the image information 12 is recorded on one outer surface. A microlens array is formed by filling a photocurable resin 31 into the micropores 22 formed in the light-to-heat conversion layer 20 in accordance with the position of. Thereby, since the manufacturing method concerning the image recording body 100 can be simplified, it is possible to reduce the time and cost for manufacturing, and the efficiency of the image recording body 100 in which the light emitted from between the lens portions is suppressed. Can be manufactured automatically.

<Application example 1>
Next, with reference to FIGS. 8 and 9, an application example 1 of the above-described method for manufacturing an image recording body will be described. In addition, the same code | symbol is attached | subjected to the component similar to above-described embodiment, and description is abbreviate | omitted.

  FIG. 8 is a diagram illustrating each process included in the lens forming process S3 of the application example 1. FIG. 9 is a diagram for explaining the lens forming step S3 of the first application example. As shown in FIG. 8, the lens formation step S3 includes a lens resin discharge step S41, a UV light irradiation step S42, a photothermal conversion agent application step S43, and a photothermal conversion agent drying step S44.

  First, in the lens resin discharge step S41, the light-transmitting photocurable resin 31 is discharged as droplets from a liquid discharge head (not shown) of an ink jet system onto a predetermined position on the lens forming surface of the transparent support 10. Here, the discharged droplets have a substantially hemispherical plano-convex lens shape due to the difference in surface energy between the transparent support 10 and the photocurable resin 31 and the surface tension of the photocurable resin 31 ( As shown in FIG. 9A, a microlens array having a plano-convex lens shape can be easily formed. In addition, as shown in FIG. 9A, the liquid droplets ejected onto the lens forming surface of the transparent support 10 are positioned and sized according to the image information 12 recorded on the image recording surface of the transparent support (image). It is assumed that various setting values related to the operation of the liquid ejection head are adjusted in advance so that the pitch P).

  In the UV light irradiation step S42, the photocurable resin 31 having a plano-convex lens shape is irradiated with ultraviolet rays emitted from light emitting means (not shown) such as a fluorescent tube and a lamp, thereby curing the photocurable resin 31. Then, the microlens array 30 is formed.

  In the subsequent photothermal conversion agent application step S43, the photothermal conversion agent 21 is applied on the microlens array 30 formed in the UV light irradiation step S42 (see FIG. 9B). Here, the applied photothermal conversion agent 21 is water-repellent from the convex lens surface side of the microlens array 30 due to the difference in surface energy between the photothermal conversion agent 21 and the microlens array 30 (photocurable resin 31). It accumulates between the lens portions (see FIG. 9C). And in the photothermal conversion agent drying process S44, the photothermal conversion layer 20 is formed between the lens parts of the micro lens array 30 by drying the photothermal conversion agent 21.

  By passing through the manufacturing process of step S41-S44 mentioned above, the photothermal conversion layer 20 and the micro lens array 30 are formed in the lens formation surface of the transparent support body 10, and the one image recording body 100 is manufactured. The manufactured image recording body 100 has the same configuration as the image recording body 100 described with reference to FIG.

As described above, according to the application example 1, the minute lens array 30 is formed on the other outer surface of the transparent support on which image information is recorded on one outer surface, and the minute lens array 30 is formed on the minute lens array 30. By applying the photothermal conversion agent 21 having a surface energy smaller than the surface energy of the lens array 30, the photothermal conversion layer 20 is formed between the lens portions of the microlens array 30 made of plano-convex lenses. As a result, it is possible to simplify the manufacturing method related to the image recording body, so that it is possible to reduce the time and cost required for manufacturing, and the image recording body in which the light emitted from between the lens portions is suppressed can be efficiently produced. Can be manufactured.
<Application example 2>
Next, with reference to FIGS. 10 and 11, application example 2 of the above-described method for manufacturing an image recording body will be described. In addition, the same code | symbol is attached | subjected to the component similar to above-described embodiment, and description is abbreviate | omitted.

  FIG. 10 is a diagram illustrating each process included in the lens forming process S3 of the application example 2. FIG. 11 is a diagram for explaining the lens forming step S3 of the application example 2. As shown in FIG. 10, the lens formation step S3 includes a photothermal conversion agent application step S51, a lens resin discharge step S52, a UV light irradiation step S53, and a photothermal conversion agent drying step S54.

  First, in the photothermal conversion agent application step S51, the photothermal conversion agent 21 having a light shielding property is applied to the lens forming surface of the transparent support 10 (see FIG. 11A).

  In the subsequent lens resin discharge step S52, the light-transmitting photocurable resin 31 is discharged as droplets onto the undried photothermal conversion agent 21 from an ink jet type liquid discharge head (not shown) (FIG. 11B). )reference). Here, the discharged photocurable resin 31 is photothermally converted from the surface of the photocurable resin 31 due to the difference in surface energy between the photothermal conversion agent 21 and the photocurable resin 31 and the surface tension of the photocurable resin 31. Since the agent 21 is water-repellent and has a substantially hemispherical plano-convex lens shape (see FIG. 11C), a microlens array having a plano-convex lens shape can be easily formed. In addition, as shown in FIGS. 11B and 11C, the liquid droplets discharged onto the lens forming surface of the transparent support have a position corresponding to the image information 12 recorded on the image recording surface of the transparent support 10. It is assumed that various setting values relating to the operation of the liquid ejection head are adjusted in advance so that the size (image pitch P) is obtained.

  In the subsequent UV light irradiation step S53, the photocurable resin 31 having a plano-convex lens shape is irradiated with ultraviolet rays emitted from a light emitting means (not shown) such as a fluorescent tube or a lamp, so that the photocurable resin 31 is irradiated. Curing is performed to form the microlens array 30. In the photothermal conversion agent drying step S54, the photothermal conversion layer 20 is formed between the lens portions of the microlens array 30 by drying the photothermal conversion agent.

  By passing through the manufacturing process of step S51-S54 mentioned above, the photothermal conversion layer 20 and the micro lens array 30 are formed in the lens formation surface of the transparent support body 10, and one image recording body is manufactured. The manufactured image recording body 100 has the same configuration as the image recording body 100 described with reference to FIG.

  As described above, according to the application example 2, the photothermal conversion agent 21 is applied to the other outer surface of the transparent support on which image information is recorded on one outer surface, and the photothermal conversion agent 21 is applied to the photothermal conversion agent 21. The photothermal conversion layer 20 is formed between the lens portions of the microlens array 30 composed of plano-convex lenses by discharging a photocurable resin 31 having a surface energy larger than the surface energy of the agent 21 as droplets. As a result, it is possible to simplify the manufacturing method related to the image recording body, so that it is possible to reduce the time and cost required for manufacturing, and the image recording body in which the light emitted from between the lens portions is suppressed can be efficiently produced. Can be manufactured.

  The present invention is not limited to the above-described embodiment, and various improvements and design changes may be made without departing from the spirit of the present invention.

  For example, in the above embodiment, the IP image 13 is formed on both outer surfaces of the transparent support 10, that is, the image recording surface, and the photothermal conversion layer 20 and the micro lens array 30 are formed on the lens forming surface. First, a transparent support for recording the IP image 13 and a transparent support for forming the photothermal conversion layer 20 and the microlens array 30 are prepared separately, and the IP image 13, the photothermal conversion layer 20 and the microlens array 30 are prepared. After the formation of the image recording body 100, one transparent image support 100 may be formed by laminating both transparent supports. In this case, it is more preferable to stack the lens unit so that the focal point of the lens unit coincides with the image information 12 (IP image 13) of the transparent support 10.

It is the figure which showed the manufacturing process of the image recording body. It is the figure which showed each process included in an IP image generation process. It is a figure for demonstrating the production | generation of a stereoscopic display image. It is a figure which shows an example of a stereoscopic display image. It is the figure which showed each process included in a lens formation process. It is a figure for demonstrating a lens formation process. It is the figure which showed the image recording body manufactured by the manufacturing process of an image recording body, Comprising: (a) has shown the top view of the image recording body, (b) The side view of an image recording body, (c) is It is a bottom view of an image recording body. 10 is a diagram illustrating each process included in the lens forming process of Application Example 1. FIG. FIG. 10 is a diagram for explaining a lens forming process of application example 1; FIG. 10 is a diagram illustrating each process included in a lens forming process of Application Example 2; 12 is a diagram for explaining a lens formation process of application example 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Image recording body 10 Transparent support body 11 Parallax image 12 Image information 13 IP image 20 Photothermal conversion layer 21 Photothermal conversion agent 22 Micropore part 30 Microlens array 31 Photocurable resin

Claims (5)

An image output step of recording image information formed by a plurality of parallax image groups having different viewpoints on the outer surface of the first transparent support in a matrix;
A photothermal conversion layer forming step of forming a photothermal conversion layer having a light-shielding property on the outer surface of the second transparent support laminated on the first transparent support;
Forming a plurality of micro-hole portions where the second transparent support is exposed at positions corresponding to the matrix-like arrangement positions of the image information in the photothermal conversion layer; and
A lens forming step of forming a microlens array by filling a lens-forming resin into the plurality of micropores;
A method for producing an image recording material, comprising: An image output step of recording image information formed by a plurality of parallax image groups having different viewpoints on one outer surface of the transparent support in a matrix;
A photothermal conversion layer forming step of forming a photothermal conversion layer having a light shielding property on the other outer surface of the transparent support;
A micro-penetrating part forming step of forming a plurality of micro-penetrating parts exposing the transparent support at positions corresponding to the matrix-like arrangement positions of the image information in the photothermal conversion layer;
A lens forming step of forming a microlens array by filling a lens-forming resin into the plurality of micropores;
A method for producing an image recording material, comprising: The lens forming resin is a photocurable resin,
The method for producing an image recording body according to claim 1, further comprising a light irradiation step of irradiating light to the lens forming resin filled in the minute through holes.   The method for producing an image recording body according to any one of claims 1 to 3, wherein the surface energy of the photothermal conversion layer is greater than the surface energy of the lens forming resin.   3. The method of manufacturing an image recording body according to claim 1, wherein the minute through hole forming step forms the fine through hole by a laser ablation method. 4.

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