38results about "Record carrier materials" patented technology

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.

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.

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 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.

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.

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 present disclosure relates to a novel holographic photopolymer and method for making the same. In some embodiments, the holographic photopolymer may comprise a polyurethane matrix, a writing monomer, and a dye system. In some embodiments, the writing monomer may comprise a polycyclic heteroaryl writing monomer In some embodiments, the holographic photopolymer may comprise a anti-oxygen inhibitor. In some embodiments, an augmented reality / virtual reality (AR / VR) apparatus comprising the holographic photopolymer is described.

Described are polymerizable high energy light absorbing compounds. The compounds absorb various wavelengths of ultraviolet and / or high energy visible light and are suitable for incorporation in various products, such as biomedical devices and ophthalmic devices. Such devices exhibit a number of desirable properties, including providing wearers with favorable optical quality.

The present invention relates to a fluorinated compound, a photopolymerizable composition, a hologram recording medium, a preparation method thereof, and an optical element comprising the same. The fluorinated compound is included in a photopolymerizable composition, thereby being able to provide a hologram recording medium that not only has excellent optical recording properties but also exhibits transparent optical properties and excellent reliability even in high temperature and high humidity environments, and an optical element including the same.

This invention relates to the field of holographic storage materials technology, specifically to an NVP-doped PQ / PMMA photopolymer holographic storage material and its preparation method. The NVP-doped PQ / PMMA photopolymer holographic storage material uses NVP, MMA, PQ, and AIBN as raw materials. NVP is doped into PQ / PMMA to achieve the photopolymer material as an excellent medium for holographic storage. This material has a simple preparation process, low cost, high diffraction efficiency, and high photosensitivity, making it better suited for holographic imaging and data storage compared to PQ / PMMA.

A drawing apparatus that 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. 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:L⁢y×1.1≤L⁢x<L⁢y×5.d×0.8≤L⁢y≤d×1.3Lx: Length of the beam shape in a direction parallel to the scanning direction of the laser beamsLy: Length of the beam shape in a direction orthogonal to the scanning direction of the laser beamsd: Pixel size.

The invention relates to a novel holographic photopolymer and a manufacturing method thereof. In some embodiments, a holographic photopolymer may include a polyurethane matrix, a write monomer, and a dye system. In some embodiments, the write monomer may include a polycyclic heteroaryl write monomer. In some embodiments, the holographic photopolymer may include an antioxidant inhibitor. In some embodiments, an augmented reality / virtual reality (AR / VR) device comprising a holographic photopolymer is described.

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 holographic photopolymer material, a holographic photosensitive film, a holographic optical element, and a display device are provided. 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 polymer matrix whose molecular structure is the crosslinked structure has a high glass transition temperature, so that the holographic photopolymer material has good heat resistance. The holographic photopolymer material whose molecular structure is a linear structure includes the activation groups that may form a crosslinked structure, so that an optical element made from the holographic photopolymer material can have a crosslinked structure, that is, the optical element can have good heat resistance. The holographic photopolymer material has good heat resistance, or the optical element made from the holographic photopolymer material can have good heat resistance.

The present application relates to the technical field of holographic storage material, in particular to a new type of holographic storage material and a preparation method thereof.The raw materials of the material include PETA, MMA, PQ and AIBN.The material is modified by introducing dendritic molecular material PETA, and after modification, the modified material not only has the air bubble-free characteristic compared with the traditional PQ / PMMA material, but also has improved photosensitive sensitivity of the material system, can significantly shorten the response time of the material, and the introduction of PETA can improve the grating diffraction efficiency uniformity and holographic performance of the material system.

The present invention relates to a photopolymer composition comprising a) a matrix polymer, b) a write monomer, c) at least one photoinitiator system, d) optionally at least one non-photopolymerizable component, and e) optionally catalysts, radical stabilizers, solvents, additives and other auxiliary and / or additional materials, wherein the at least one photoinitiator system c) consists of at least one colorant and at least one coinitiator, at least one of the colorants having a structure according to Formula (I). [Formula 1] TIFF2025507602000048.tif40150

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.

An information storage method and information storage medium are provided that have improved storage density through a multi-bit coding method. A method for storing information comprises providing a substrate and encoding information on the substrate by using a laser and / or a focused particle beam to form a plurality of recesses in a surface of the substrate, the recesses having different shapes and / or sizes and, optionally, different depths, each recess corresponding to a predetermined information value.

The invention discloses an anti-explosion and anti-adhesion glass optical disc and a manufacturing method, and belongs to the technical field of optical storage. The glass optical disc comprises an optical disc body, the optical disc body is provided with a center hole, the optical disc body comprises a data recording area and an explosion-proof film, and the explosion-proof film is used for wrapping a first circular ring area on the upper surface of the optical disc body, the inner surface of the center hole of the optical disc body and the lower surface of the optical disc body; the inner diameter of the first ring area is equal to the radius of the center hole; wherein the explosion-proof film is a polymer PET film, and the light transmittance of the explosion-proof film is greater than or equal to 90%. The explosion-proof film is adhered to the surface of the center hole of the optical disc, so that the adhesion of the optical disc during stacking can be reduced, the stability of the optical disc is improved, the fragmentation and adhesion risks of the glass optical disc in daily use and storage processes can be effectively reduced, and the service life of the optical disc is prolonged.

The invention relates to a method for producing a carrier coated with a photopolymer film, wherein the photopolymer film is suitable for forming a holographic optical element (HOE) in a sub-region of the total surface thereof. The method product can be used in a composite glass for building glazing or in vehicle windows.

The present disclosure relates to a photopolymer composition including: a polymer matrix or a precursor thereof; a photoreactive monomer including a polyfunctional (meth)acrylate monomer having a refractive index of 1.5 or less and a viscosity at 25 °C of 100 cps or less, and a monofunctional (meth)acrylate monomer having a refractive index of 1.5 or more; and a photoinitiator, wherein a content of the monofunctional (meth)acrylate monomer having a refractive index of 1.5 or more in the photoreactive monomer is 60 wt% or more. The present disclosure also relates to a hologram recording medium produced from the photopolymer composition, an optical element including the hologram recording medium, and a holographic recording method using the photopolymer composition.

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 fluorinated compound, a photopolymerizable composition, a hologram recording medium, a preparation method thereof, and an optical element comprising the same. The fluorinated compound is included in a photopolymerizable composition, thereby being able to provide a hologram recording medium that not only has excellent optical recording properties but also exhibits transparent optical properties and excellent reliability even in high temperature and high humidity environments, and an optical element including the same.

The recording medium in one aspect of the present disclosure has a recording layer. The recording layer contains an aliphatic polymer; and a multi-photon absorbing compound having a multi-photon absorption property, which contains at least one selected from the group consisting of carbon-carbon double bond, carbon-nitrogen double bond, and carbon-carbon triple bond. When the thickness of the recording layer is 100 μm, the transmittance of the recording layer to light of wavelength 405 nm in the thickness direction is 80% or more.

The present invention relates to a data carrier comprising a plastics substrate having first and second opposite surfaces and a thickness of at most 500 µm, wherein the first surface of the substrate is coated with a first coating, the material of the first coating being different from the material of the substrate, wherein the first coating comprises a plurality of laser-ablated recesses encoding information, and wherein the first coating comprises one or a combination of the following materials: a metal nitride, a metal carbide, a metal boride, a metal silicide.

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

Optical Storage Medium and Super-Resolution Information Read-Write Method and Apparatus Based on the Same. The optical storage medium comprises the following components in molar percentages: a photoinitiator from 0.1% to 5%; an aggregation-induced emission dye from 0.1% to 5%; a metal ion compound from 0.1% to 5%; and a monomer from 85% to 99.7%. The information writing method includes: irradiating the optical storage medium with a solid beam of wavelength λ1 to enhance the fluorescence intensity in the irradiated region; irradiating the surrounding area of the solid-beam-irradiated region with a hollow beam of wavelength λ2 to suppress the fluorescence intensity in that surrounding area; and recording information by utilizing the fluorescence contrast between the irradiated region and the surrounding area, thereby forming information recording points with dimensions smaller than the diffraction limit. The present invention employs super-resolution writing and super-resolution reading based on stimulated emission depletion microscopy. It addresses issues inherent in conventional read-write methods, such as the inability to break the diffraction limit, low material transmittance, and limitations on the number of three-dimensional recording layers. This significantly enhances optical storage density and capacity.

The application belongs to the technical field of holographic polymer materials, and particularly relates to a PETMP doped PQ / PMMA photopolymer holographic storage material and a preparation method thereof. The preparation method adds PETMP, MMA, PQ and AIBN, and sequentially carries out mixing, prepolymerization and thermal polymerization to obtain the PETMP doped PQ / PMMA photopolymer holographic storage material. Compared with the traditional PQ / PMMA material, the recording grating diffraction efficiency of the PETMP doped PQ / PMMA photopolymer holographic storage material is improved to more than 80%, the refractive index modulation is higher, and the storage capacity of the material can be effectively improved. At the same time, the diffraction efficiency is greatly improved by doping PETMP, the light response speed is accelerated, better optical properties are exhibited, and the PETMP doped PQ / PMMA photopolymer holographic storage material has a wide application prospect in the field of holographic storage.