140results about "Record carrier materials" patented technology

The invention discloses a photopolymer type holographic recording medium and a preparation method and application thereof.The photopolymer type holographic recording medium comprises a writing monomer, film-forming resin, a photosensitive initiation combination agent and a catalyst, the writing monomer comprises nanoparticles and a polymerizable monomer, and the film-forming resin is prepared from the nanoparticles and the polymerizable monomer; the refractive index of the polymerizable monomer is smaller than that of the nanoparticles, and the difference between the refractive index of the nanoparticles and the refractive index of the polymerizable monomer is larger than 0.5. The film-forming resin includes a polyol compound and an isocyanate-based compound. The catalyst is used for catalyzing a polyol compound and an isocyanate compound to react to form a film. The photosensitive initiation combination agent is used for sensing light and inducing polymerization of the polymerizable monomer. According to the photopolymer type holographic recording medium disclosed by the invention, after exposure, the polymerizable monomers located in the bright area and the nanoparticles extruded to the dark area have relatively large refractive index difference, so that the refractive index modulation degree of the recording grating can be improved; the film-forming resin provides effective support for the nanoparticles, and the nanoparticles are not agglomerated.

The present invention relates to photopolymerizable compositions and elements made therefrom, as well as their use. The photopolymerizable compositions are particularly suitable as recording material for optical elements with refractive index modulation, in particular holograms.

The invention discloses a photopolymer type holographic recording medium and a substrate processing method, and the method comprises the steps: providing a substrate which comprises a glass substrate or a resin substrate; providing a mixed solution of the photopolymer type holographic recording medium; performing hydroxylation treatment on the surface of the substrate to generate hydroxyl groups on the surface of the substrate; uniformly distributing the mixed solution of the photopolymer type holographic recording medium on the surface of a substrate, and baking, so that the compound with a plurality of isocyanate reactive functional groups and the polyisocyanate group compound in the photopolymer type holographic recording medium react to generate film-forming resin; the hydroxyl group on the surface of the substrate participates in the reaction, and the film-forming resin is connected to the substrate in a covalent bond manner. In this way, the adhesion between the photopolymer layer and the substrate can be improved without increasing the complexity of subsequent process operations.

To provide a photosensitive composition capable of further improving diffraction characteristics.The present technology provides a photosensitive composition including: at least a compound represented by the following general formula (1); a binder resin; and a photoinitiator.In the general formula (1), X1 represents an oxygen atom, a nitrogen atom, a phosphorus atom, a caron atom, or a silicon atom.Y1 and Y2 each represent a benzene ring or a naphthalene ring, and both Y1 and Y2 do not represent benzene rings.R1 to R3 each represent a hydrogen or a substituent group represented by *—Z1(R4)d (* represents a bonding site).Z1 represents a single bond, a saturated hydrocarbon group having a valence of 2 or higher, or an unsaturated hydrocarbon group having a valence of 2 or higher, and the saturated hydrocarbon group or the unsaturated hydrocarbon group may have an ether bond and / or a thioether bond.R4 represents a hydrogen or a polymerizable substituent group.

The present invention relates to a compact writing and reading head for hyper-speed data recording on ceramic material.

A compound represented by the following formula (1): [In the formula, A represents a polymerizable group. n represents an integer of 1 to 3. L represents an optionally branched (n+1)-valent linking group. Z represents an oxygen atom, or a nitrogen atom optionally having a substituent. m represents an integer of 0 or 1. X represents a single bond, an oxygen atom, a sulfur atom, a carbon atom optionally having a substituent, or a nitrogen atom optionally having a substituent. p represents an integer of 0 to 2. When p is 2, the two Xs may be the same or different. Y1 and Y2 are each independently a benzene ring, a naphthalene ring, or a phenanthrene ring. When Y1 or Y2 is a benzene ring, a or b corresponding to Y1 or Y2 is an integer of 0 to 4. When Y1 or Y2 is a naphthalene ring, a or b corresponding to Y1 or Y2 is an integer of 0 to 6. When Y1 or Y2 is a phenanthrene ring, a or b corresponding to Y1 or Y2 is an integer from 0 to 8. R1 and R2 each independently represent an aromatic ring group optionally having a substituent. When a and b are 2 or more, a plurality of R1S and R2s may be the same or different from each other. In the formula, Y1 and Y2 are not both benzene rings and a and b are not both 0.]

A holographic photopolymer material, a holographic photosensitive film, a holographic optical element, and a display device, wherein the holographic photopolymer material includes a polymer matrix, photopolymerizable monomers, and a photosensitizer. An index of refraction of the photopolymerizable monomer is greater than an index of refraction of the polymer matrix. A molecular structure of the polymer matrix includes a linear structure, and branch chains of the polymer matrix include activation groups; and / or the molecular structure of the polymer matrix includes a crosslinked structure.

The invention relates to a device for continuously replicating holograms, comprising: a coating module arranged to coat a liquid photopolymer onto a first carrier film; a lamination module arranged to apply a second carrier film onto the first carrier film coated with the photopolymer in order to obtain a photopolymer composite comprising a liquid photopolymer layer between the two carrier films; an exposure module, the exposure module having a light source and a master element comprising a master hologram to be replicated, the master element being mounted so as to be axially rotatable, and the exposure module being arranged such that a photopolymer composite is in optical contact with the master element, simultaneously exposing the master hologram onto the region of the photopolymer composite by the light source to obtain a duplicated hologram; and a securing module arranged to cure the replicated hologram in the photopolymer composite.

One embodiment of the nonlinear light-absorbing material disclosed herein comprises a compound represented by the following formula (1) as its main component. In formula (1), R 1 ~R 10 Each group can be a hydrogen atom, halogen atom, saturated hydrocarbon group, haloalkyl group, unsaturated hydrocarbon group, hydroxyl group, carboxyl group, alkoxycarbonyl group, aldehyde group, acyl group, amide group, nitrile group, alkoxy group, acyloxy group, thiol group, alkylthio group, sulfonic acid group, acylthio group, alkylsulfonyl group, sulfonamide group, primary amino group, secondary amino group, tertiary amino group, or nitro group.

A compound according to one embodiment of the present disclosure is represented by formula (1).　In formula (1), R1 to R22 each independently include at least one atomic element selected from the group consisting of H, B, C, N, O, F, Si, P, S, Cl, I, and Br; and L1 and L2 each independently represent a single bond or -C≡C-.

Holographic photopolymer materials, holographic photosensitive films, holographic optical elements, and display devices are provided. The holographic photopolymer material comprises a polymer matrix, a photopolymerizable monomer, and a photosensitizer. The refractive index of the photopolymerizable monomer is greater than that of the polymer matrix. The molecular structure of the polymer matrix includes a linear structure, the branched chains of the polymer matrix include activating groups, and / or the molecular structure of the polymer matrix includes a crosslinked structure. Because polymer matrices with a crosslinked molecular structure have a high glass transition temperature, holographic photopolymer materials have good heat resistance. Because holographic photopolymer materials with a linear molecular structure include activating groups that can form crosslinked structures, optical elements made from holographic photopolymer materials can have crosslinked structures, i.e., optical elements can have good heat resistance. Holographic photopolymer materials have good heat resistance, or optical elements made from holographic photopolymer materials can have good heat resistance.

Provided is a Mn—Ta—W—Cu—O-based sputtering target including, in the component composition, Mn, Ta, W, Cu, and O. The sputtering target has a relative density of at least 90%, and includes a crystal phase of Mn4Ta2O9. Also provided is a production method for the sputtering target.

The invention relates to a benzopyrylium dyestuff of formula (I), wherein R200,R201, R202, R203, R204, R205, R206, R207 and R208 each independently represent hydrogen, C1- to C16-alkyl, C4- to C7-cycloalkyl C7- to C16-aralkyl, C6- to C10-(het)aryl, hydroxy, C1- to C6- alkoxy, or dialkylamino , wherein the dialkylamino is selected from the group consisting of diethylamino, dimethylamino, diisopropylamino, a six-membered, saturated ring linked via the N of the amino group, which can also include an N or O and can be substituted by non-ionic random groups or a combination of at least two thereof, and / or R200 with R201 or R201 with R202 or R202 with R203 and / or R205 with R206 and / or R206 with R207 each independently together form a -CH=CH-CH=CH-bridge, with A representing a -CH2or a -CH2-CH2-bridge, wherein the anion Ann- has a molecular weight of ≥ 200 g / mol and contains no halogen atom.

The application discloses a kind of light information storage methods based on Au-NaYF4:Eu 3+ -Au array, according to the product induced by surface plasmon has the "memory" characteristics to the power induced its transformation, first plating a layer of gold island film on glass substrate, then NaYF4:Eu 3+ Nanoparticle is uniformly dropped on gold island film, and gold is sprayed on its surface to form Au-NaYF4:Eu 3+ -Au three-layer film structure with "memory characteristics", finally, Au-NaYF4:Eu 3+ -Au film surface is written in bright and dark controllable light-emitting array, by changing the power of excitation light to collect the fluorescence imaging of each point in the array, the bright and dark state of each point in the array is obtained and corresponds to digital information, so as to realize data reading.The method is simple and easy to operate, easy to quantify, has good application prospect in secret communication, anti-fake and measurement and control technology, and provides a new idea for data security transmission.

An optical recording medium capable of suppressing a decrease in reproduction durability is provided. [Solution] In an optical recording medium, a first disc (10) includes at least one information signal layer (L0-Ln). The information signal layer includes a first dielectric layer (14), a recording layer (13), and a second dielectric layer (15), in that order, with the first dielectric layer being located deeper than the recording layer when viewed from a first light irradiation surface (C1). The recording layer includes Mn and O. The first dielectric layer includes Zn, Sn, Al, and O or Zn, Sn, Ti, and O, with the Al content relative to the total amount of Zn, Sn, and Al being 10 atomic % or more, and the Ti content relative to the total amount of Zn, Sn, and Ti being 10 atomic % or more.

The present invention relates to a fluorine-based compound, a photopolymerizable composition, a hologram recording medium, a method for producing the same, and an optical element including the same. The fluorine-based compound is contained in the photopolymerizable composition and not only has excellent optical recording characteristics, but also can provide a hologram recording medium having transparent optical characteristics and excellent reliability even in a high-temperature and high-humidity environment, and an optical element including the same.

The present invention relates to a holographic recording medium, a method for producing the same, and an optical element including the same. The holographic recording medium has a specific element composition ratio, and thus has excellent optical recording properties, excellent durability against heat and moisture, suitable adhesive strength to a transparent adhesive, and high transparency.

The present application relates to a holographic recording medium, a manufacturing method thereof, and an optical element including the same. The holographic recording medium is capable of recording full-color optical information, has excellent diffraction efficiency in red, green, and blue regions, and is stable at room temperature and high temperatures, and exhibits excellent reliability even when left at room temperature for a long period of time or exposed to high temperatures.

The disclosure relates to a benzopyrylium dye of the formula (I),in which R200, R201, R202, R203, R204, R205, R206, R207 and R208 independently of one another are each hydrogen, C1 to C16 alkyl, C4 to C7 cycloalkyl, C7 to C16 aralkyl, C6 to C10 (het)aryl, hydroxyl, C1 to C6 alkoxy, or dialkylamino, the dialkylamino being selected from the group consisting of diethylamino, dimethylamino, diisopropylamino, a six-membered saturated ring attached via the N of the amino group, which may additionally contain an N or O and may be substituted by nonionic arbitrary radicals, or a combination of at least two thereof, and / or R200 with R201 or R201 with R202 or R202 with R203 and / or R205 with R206 and / or R206 with R207 each independently of one another form a —CH═CH—CH═CH— bridge, and A is a —CH2— or a —CH2—CH2— bridge, where the anion Ann− has a molecular weight of ≥200 g / mol and does not contain a halogen atom.

A data protector according to an embodiment of the present disclosure includes: a data layer configured to record confidential information as a visible image; and one or a plurality of cover layers disposed at least one of above or below the data layer and configured to transition between a color-developed state and a decolored state in a visible wavelength region.

A drawing apparatus according to an aspect of the present disclosure includes a light source section and a scanning section. The scanning section irradiates a surface of the recording medium with a plurality of laser beams generated by the light source section. The light source section generates at least one laser beam among the plurality of laser beams to cause a beam shape of each of the laser beams at a position of the recording medium to satisfy a relational expression below, and to cause a length of the beam shape in a direction parallel to a scanning direction of the laser beams to be 0 degrees or more and 20 degrees or less with respect to the scanning direction of the laser beams: Ly×1.1≤Lx<Ly×5.0 d×0.8≤Ly≤d×1.3 Lx: Length of the beam shape in a direction parallel to the scanning direction of the laser beams Ly: Length of the beam shape in a direction orthogonal to the scanning direction of the laser beams d: Pixel size.

The present invention relates to a benzopyranium dye # imgabs0 # wherein R200, R201, R202, R203, R204, R205, R206, R207 and R208 are each independently of one another hydrogen, a C1 to C16 alkyl group, a C4 to C7 cycloalkyl group, a C7 to C16 aralkyl group, a C6 to C10 (hetero) aryl group, a hydroxyl group, a C1 to C6 alkoxy group or a dialkylamino group, wherein the dialkylamino group is selected from the group consisting of diethylamino, dimethylamino, diisopropylamino, a six-membered saturated ring (which may additionally contain N or O and may be substituted by any non-ionic group) linked by the N of the amino group, or a combination of at least two thereof, and / or R200 and R201 or R201 and R202 or R202 and R203 and / or R205 and R206 and / or R206 and R207 each form together independently of one another-CH = CH-CH = CH-bridge, a is-CH2-or-CH2-CH2-bridge, wherein the anion Ann-has a molecular weight of > = 200 g / mol and is free of halogen atoms.

The invention belongs to the technical field of functional materials, and discloses a method for physically regulating and controlling the afterglow time of a room-temperature phosphorescent material through optical excitation and application of the method in dynamic information display. By using the method, the afterglow emitting RGB three primary colors and the afterglow with red and green time resolution are prepared respectively. The material is quick and energy-saving to prepare and stable in performance, multiple dynamic information encryption can be realized by controlling the wavelength and irradiation time of ultraviolet light, and the material has a wide application prospect in the fields of intelligent anti-counterfeiting and information storage.

An optical storage medium, a super-resolution information reading method and device based on said medium, and a super-resolution information writing method and device based on said medium. The mole fractions of components of the optical storage medium are as follows: 0.1%-5% of a photoinitiator, 0.1%-5% of an aggregation-induced emission dye, 0.1%-5% of a metal ion compound, and 85%-99.7% of a monomer. The information writing method comprises: using a solid light beam having a wavelength λ1 to irradiate an optical storage medium, so as to enhance the fluorescence intensity of an irradiated area; using a hollow light beam having a wavelength λ2 to irradiate a surrounding area around the irradiated area of the solid light beam, so as to quench the fluorescence intensity of the surrounding area; and using fluorescence contrast record information of the irradiated area and the surrounding area to form an information record point the size of which is smaller than a diffraction limit. The super-resolution writing and the stimulated emission depletion microscopy technology-based super-resolution reading solve the problems that conventional reading and writing methods cannot break through a diffraction limit, the material transmittance is low, the number of three-dimensional record layers is limited, etc., and the optical storage density and capacity are greatly improved.

The present invention relates to a method for producing a substrate coated with a photopolymer film, wherein the photopolymer film is suitable in a partial region of its total surface to form a holographic optical element (HOE). The product of the process can be used in laminated glass for building glazing or in vehicle windows.

The disclosure relates to photopolymer compositions including a) matrix polymers, b) writing monomers, c) at least one photoinitiator system, d) optionally at least one non-photopolymerizable component, e) optionally catalysts, radical stabilizers, solvents, additives, and other auxiliary agents and / or admixtures, where the at least one photoinitiator system c) consists of at least one dye and at least one coinitiator, at least one of the dyes has a structure according to formula (II), and the at least one coinitiator has a calculated oxidation potential which is ascertained according to the formula (1).

The invention discloses a photoinduced fluorescence enhanced vinyl ether compound as well as a preparation method and application thereof. The vinyl ether compound comprises a sulfuryl vinyl ether compound, a carbon-based vinyl ether compound and an ester-based vinyl ether compound, the vinyl ether compound is subjected to photochemical rearrangement under the irradiation of 254 nm ultraviolet light to generate a planar fused ring structure, and the fluorescence intensity is greatly improved. Through substituent group regulation and control, accurate adjustment of emission wavelength can be realized. The synthesis method is based on click reaction of phenolic monomers and activated alkyne, and the process is simple and efficient. The molecules still keep photoresponsiveness in a solid film (such as a PMMA substrate), are successfully applied to a mask-assisted information input and erasing system, and provide a new technical scheme for the fields of anti-counterfeiting and information storage.

A data carrier capable of storing information for a long period of time, capable of increasing the capacity of stored information, and a method and system for reading out the information are provided. [Solution] The information is combined by acquiring and processing an image of the layer of photoluminescent material through the surface layer of the data carrier having information-encoded recesses in a system including a structured illumination microscope (SIM) or saturated structured illumination microscope (SSIM) device. The photoluminescent material layer is provided on the sample support of the device or on one or both sides of the data carrier. The information-encoded recesses are formed in a coating layer coated on the ceramic substrate of the data carrier, in a photoluminescent material layer provided on the substrate, or in a coating layer coated on the photoluminescent material layer.