Abstract: Provided is an organic electronic device and a method for manufacturing the same. The organic electronic device can effectively block moisture or oxygen from being introduced from the outside into the organic electronic device. The organic electronic device can secure the lifetime of an organic electronic element and has excellent durability while being applicable to a flexible device.

Abstract: The present application relates to an adhesive composition comprising a curable oligomer and a polymer derived from butylene, an adhesive film comprising same, an organic electronic device comprising same, and a lighting apparatus and a display device comprising same. The adhesive film comprising the adhesive composition shows excellent moisture-blocking properties and enables an organic electronic device to have flexibility as well as excellent and reliable durability at high temperature and high humidity.

Abstract: The present application relates to an organic electronic device, a method for preparing same, and a lighting apparatus and a display device comprising same. The present application enables an organic electronic device to show excellent moisture-blocking properties and have flexibility as well as excellent and reliable durability at high temperature and high humidity.

Abstract: An optical information recording medium 10 comprises a plurality of recording layers 14, and intermediate layers 15 each provided between the recording layers 14. Each of the recording layers 14 includes polymer binder and dye dispersed in the polymer binder, and the dye is subject to multi-photon absorption of a recording beam RB having a predetermined wavelength and to linear absorption not smaller than 1.5% per recording layer at the predetermined wavelength of the recording beam. When the dye is irradiated with the recording beam and generates heat by linear absorption and multi-photon absorption of the recoding beam RB, the polymer binder undergoes a change of shape by the generated heat, whereby an interface between the recording layer 14 and the intermediate layer undergoes a change of shape to record information.

Abstract: An optical information recording medium 10 comprises a plurality of recording layers 14 and intermediate layers 15 each provided between the recording layers 14. Each of the recording layers 14 includes a polymer binder and dye dispersed in the polymer binder, and a thickness of each recording layer is equal to or greater than 50 nm. A first interface (near-side interface 18) is formed between a recording layer 14 and an intermediate layer 15 that is adjacent to the recording layer 14 on one side of the recording layer 14 in a thickness direction of the recording layer 14, and a second interface (far-side interface 19) is formed between the recording layer 14 and an intermediate layer 15 that is adjacent to the recording layer 14 on the other side of the recording layer 14 in the thickness direction of the recording layer 14.

Abstract: An objective lens for optical pickup and an optical pickup apparatus having the same are provided. The objective lens for optical pickup includes a light source side lens surface and a disc side lens surface. The light source side lens surface and the disc side lens surface each include an effective region disposed at a central region of the objective lens and a non-effective region disposed outside the effective region. An optical path changing element, disposed in the non-effective region of at least one of the light source side lens surface and the disc side lens surface, changes a path of light incident thereon.

Abstract: A recording medium is provided with: a guide layer on which a guide track or tracks are formed; and a plurality of recording layers, wherein a same mark group is formed in a same rotational phase position of each of a plurality of guide tracks which are included in a beam spot of guide laser light, the mark group including a pair of record marks which are shifted by a predetermined distance toward a right side and a left side, respectively, from a track center.

Abstract: A recording medium is provided with: a guide layer on which a guide track or guide tracks are formed; and recording layers, wherein (i) an information mark group and (ii) a distinctive mark group are formed in the guide layer, the information mark group being formed on each of a plurality of guide tracks, the distinctive mark group distinguishing a center track out of the plurality of guide tracks on each of which the information mark group is formed, the distinctive mark group including a pair of distinctive record marks which are shifted toward a right side and a left side, respectively, from a track center of the center track, a width of each distinctive record mark is twice or more a width of the guide track.

Abstract: [Problem] In a conventional multilayer optical disc, management information needs to be retrieved from the control area of its reference layer to find how many information layers there are in the optical disc. [Means for Solving the Problem] A multilayer optical disc according to the present invention has multiple information layers that are stacked one upon the other. The information layers include at least one layer on which layer number information, indicating its own place in the multiple information layers, and information about the total number of information layers included are both stored.

Abstract: Optical information recording medium 10 comprises: a plurality of recording layers 14 which undergo a change in refractive index by irradiation with recording beam; and an intermediate layer 15 provided between the recording layers 14. The intermediate layer 15 includes first intermediate layer 15A disposed adjacent to a recording layer 14 at a side opposite to an incident side from which recording beam enters the recording layer, and second intermediate layer 15B disposed adjacent to a recording layer 14 at an incident side from which the recording beam enters the recording layer. The first intermediate layer 15A and the recording layer 14 have different refractive indices, whereas the second intermediate layer 15B and the recording layer 14 have substantially the same refractive index. The first and the second intermediate layer 15A, 15B are merged with each other at an interface therebetween, whereby refractive index gradually changes at the interface.

Abstract: A data processing apparatus acquires content, generates an encryption key by using an initial value written in an unwritten memory block in a write-once recording medium, encrypts the content by using the encryption key, and writes to the write-once recording medium the encrypted content and an address table for identifying the memory block storing the initial value used for generating the encryption key.

Abstract: The information recording medium (100) of the present invention includes: an information layer (110) including a recording layer (115) capable of changing its phase containing at least one selected from Ge—Te, Sb—Te and Ge—Sb, and two or more dielectric layers (117, 118) disposed on the optical beam incident side with respect to the recording layer (115); and a transparent layer (102) disposed on the optical beam incident side with respect to the information layer (110) adjacent to the information layer, made of a transparent material with respect to the optical beam, and having a refractive index n of 1.75 or more.

Abstract: An optical recording disc comprises: at least ten optical recording layers; a plurality of intermediate layers each interposed between adjacent optical recording layers; a base film configured to support the optical recording layers and the intermediate layers; a cover layer disposed opposite to the base film with the optical recording layers and the intermediate layers interposed therebetween. The optical recording disc is in the shape of a disc as a whole. The total thickness of the optical recording disc is not more than 300 micrometers, and the optical recording disc provides flexibility.

Abstract: The invention relates to three-dimensional optical memory devices and can be used in all areas of computing in which it is necessary to record large data files on compact carriers, and also for recording, erasing and reading video data, for example, in independent video viewing systems. The device comprises an optical disc positioning system, a source of radiation with two different wavelengths that is optically coupled to a focusing system, focusing system positioning means, and an optical sensor that is optically coupled to the focusing system via a spectrum splitter and an controlled spectrum selector placed between the source of radiation with two different wavelengths and the spectrum splitter, wherein the focusing system is designed with longitudinal chromatic aberration at the given wavelengths.

Abstract: An apparatus is described for recording an optical record carrier (40). The apparatus is arranged for recording a visually detectable pattern (LBL) at the record carrier in a ring shaped zone (RP). The apparatus is further arranged to record data (Data1, Data2) and a primary data organizing system (FS) wherein the data is organized. The primary data organizing system (FS) does not refer to a physical address within the ring shaped zone. The apparatus is further arranged for recording at least part of the data (Data2) or the primary data organizing system on the record carrier at an area peripherally arranged with respect to the ring shaped zone.

Abstract: An optical recording medium includes a cover layer, a plurality of recording surfaces, and a plurality of intermediate layers. The thicknesses of the layers are specifically determined and set at values which suppress a back focus problem. Because the optical recording medium suppresses back focus, the recording and reproducing of information using the optical recording medium is not obstructed.

Abstract: Shape-wise thicknesses of a cover layer and first through (N?1)th intermediate layers of an optical recording medium having refractive indexes nr1, nr2 are converted into thicknesses t1, t2 of the respective layers having a predetermined refractive index which makes a divergent amount equal to a divergent amount of a light beam resulting from the thicknesses tr1, tr2, a difference DFF between the sum of a thickness “ti” through a thickness “tj”, and the sum of a thickness “tk” through a thickness “tm” is set to 1 ?m or more (where i, j, k, and m are each any positive integer satisfying i?j?k?m?N), and the thicknesses t1, t2 are calculated by products of a function f(n) expressed by the following formula (1), and the thicknesses tr1, tr2: f(n)=?1.088n3+6.1027n2?12.042n+9.1007??(1) in the formula (1), n=nr1, nr2, . . . , and nrN.

Abstract: An optical recording medium is provided having a plurality of laminated recording layers, wherein the recording layers are formed such that a spacing between each pair of recording layers of all recording layer combinations selected from the plurality of recording layers is different from that of each other pair. Accordingly, a return of lights reflected by other layers to an optical head along the same optical path as reflected light from a readout layer during the reproduction can be avoided. Therefore, use of the optical recording medium, from which a good reproduction signal can be obtained, can suppress a deterioration of a servo signal and a reproduction signal of a reproducing device due to a variation of interference fringes on a light receiving element.

Abstract: Shape-wise thicknesses tr1, tr2, . . . , and trN of a cover layer and first through (N?1)-th intermediate layers of an optical recording medium having refractive indexes nr1, nr2, . . . , and nrN are converted into thicknesses t1, t2, . . . , and tN which are calculated by products of a function f(n)=?1.088n3+6.1027n2?12.042n+9.1007 where n=nr1, nr2, . . . , and nrN.

Abstract: Disclosed herein is a recording medium on or from which the recording or reproduction of data is stably performed. On the recording medium, data are recorded three-dimensionally by the irradiation of a recording laser beam. The recording medium includes a reflection control layer including a plurality of reflection layers stacked in a film thickness direction, each reflection layer having a connection terminal, each reflection layer exhibiting reflectivity and transmissivity changeable in response to an electrical signal supplied to the connection terminal and a recording layer disposed at a beam incidence side of the reflection control layer.

Abstract: Embodiments of methods and systems for controlling access to information stored on memory or data storage devices are disclosed. In various embodiments, fluid-mediated modification of information or access to information is utilized. According to various embodiments, data storage devices designed for rotating access are described which include rotation-activated fluid control mechanisms.

Abstract: An optically-readable disk includes a device that disrupts readability of the disk when the disk is spun at an angular velocity substantially greater than required to play the disk in its intended playing device, or for when a defined integral of velocity and time is exceeded. The device may include a fluid container that disperses a data-disruptive fluid. The device may include a membrane or layer that is disrupted when the disk is rotated above a defined angular velocity, or when a defined integral of velocity and time is exceeded.

Abstract: An optically-readable disk includes a device that disrupts readability of the disk when the disk is spun at an angular velocity substantially greater than required to play the disk in its intended playing device, or when a defined integral of velocity and time is exceeded. The device may include a fluid container that disperses a data-disruptive fluid. The device may include a membrane or layer that is disrupted when the disk is rotated above a defined angular velocity, or when a defined integral of velocity and time is exceeded. The device may include an electro-optical material that is activated by an electrical signal from a controller in response to an input from a sensor responsive to motion of the disk.

Abstract: An optical recording medium includes recording layers and intermediate layers. The recording layers include a diffraction grating that has a predetermined grating pitch and is obtained by alternately laminating first layers and second layers being transparent and having slightly different refractive indexes. The intermediate layers are transparent and have a larger thickness than that of the recording layers. In the optical recording medium, the recording layers and the intermediate layers are alternately laminated.

Abstract: An optical recording medium is provided with at least a substrate, light absorbing and heat generating parts each of which absorbs light and generates heat, and recording parts, and each of the recording parts are formed between two recording tracks.

Abstract: Embodiments of methods and systems for controlling access to information stored on memory or data storage devices are disclosed. In various embodiments, fluid-mediated modification of information or access to information is utilized. According to various embodiments, data storage devices designed for rotating access are described which include rotation-activated fluid control mechanisms.

Abstract: A disclosed optical information recording medium includes a guide track layer having grooves and ridges; and recording layers composed of an optical recording material and disposed above and below the guide track layer. The guide track layer is used to determine track positions on the recording layers.

Abstract: An optically-readable disk includes a device that disrupts readability of the disk when the disk is spun at an angular velocity substantially greater than required to play the disk in its intended playing device, or when a defined integral of velocity and time is exceeded. The device may include a fluid container that disperses a data-disruptive fluid. The device may include a membrane or layer that is disrupted when the disk is rotated above a defined angular velocity, or when a defined integral of velocity and time is exceeded. The device may include an electro-optical material that is activated by an electrical signal from a controller in response to an input from a sensor responsive to motion of the disk.

Abstract: An optical disk includes a plurality of disk sheets which are laminated, and each of which has a recording face on one of the surfaces and a flat back surface, wherein the plurality of disk sheets are laminated by adhesive layers in such a manner that between adjacent two disk sheets, a back surface of one of the disk sheets, on the opposite side of the surface where the recording face is formed, faces the disk surface of the other disk sheet. The foregoing structure realizes an optical disk of desirable recording/reproducing characteristics, which is flat and has a fixed interval between recording faces, and which permits the problems of coma aberration, spherical aberration, etc., to be suppressed.

Abstract: An optical information recording medium includes a dielectric layer and an Ag-based reflection layer or an Ag-based metal semitransparent layer adjacent to the dielectric layer. The dielectric layer contains niobium oxide between 50 mol % and 75 mol %, zinc sulfide between 10 mol % and 30 mol %. The dielectric layer further contains an additive which is at least one of or a mixture of at least two of the following materials: aluminum oxide, tantalum oxide, silicon oxide, cerium oxide, yttrium oxide, hafnium oxide and bismuth oxide. By this structure layers, an Ag-based reflection layer or Ag-based metal semitransparent layer can apply to a phase-change optical disc without requiring a layer for preventing the Ag-based layer from sulfurization. An optical information recording medium having high productivity can be provided.

Abstract: An information-recording medium having a substrate and a recording part formed on the substrate allowing three-dimensional formation of recording pits, the recording part, comprising multiple recording layers, in which the recording pits are formed with a converged recording light at a wavelength of ?2 and reproduced with a converged reproducing light with a wavelength ?1 shorter than the wavelength ?2, and intermediate layers alternately laminated between the recording layers, wherein the reflectance at the recording light wavelength of ?2 in the unrecorded region is smaller than the reflectance at the reproducing light wavelength of ?1 in the unrecorded regions of the recording layers.

Abstract: An optical recording medium has a plurality of information layers which are placed between a substrate and an optically transparent cover layer with optically transparent spacer layers interposed between the information layers. From among the plurality of information layers, the information layer excluding the information layer arranged closest to the substrate and the information layer adjacent to the information layer closest to the substrate has asymmetrical reflection characteristics in which reflectance on the substrate side when light incident from the substrate side is reflected on the information layer toward the substrate side is lower than the reflectance on the cover layer side when light incident from the cover layer side is reflected on the information layer toward the cover layer side.

Abstract: An optical disc of a desired thickness is formed by adhering a stamper substrate 20 to an L0 layer substrate 10. Concave/convex portions to transfer fine concave/convex portions for an L1 layer are formed on one principal plane of the stamper substrate 20. After the fine concave/convex portions for the L1 layer were transferred and formed onto an intermediate layer 32 by the stamper substrate 20, the stamper substrate 20 is adhered to the L0 layer substrate 10.

Abstract: An information recording medium includes: a first recording layer to for recording first information; and one or a plurality of second recording layers, disposed on the first recording layer, for recording second information. Each recording layer has a predetermined area in which power calibration is performed to detect an optimum recording power of laser light for recording, which is transmitted through the first recording layer and other layers of the second recording layers, the first recording layer, the other layers of the second recording layers, and each of the second recording layers arranged in this order as viewed from an irradiation side of the laser light, and in a facing area, which faces the predetermined area, in the other layers of the second recording layers and the first recording layer, by forming embossed pits.

Abstract: The invention relates to an optical data carrier which combines a CD layer with at least one further format, such as a DVD layer for example. If a hybrid data carrier of this kind is to be produced in a thickness of less than 1.7 mm, and preferably in a thickness of 1.5 mm or less, then, seen from the surface which is to be read from, the CD layer will normally be situated at a depth of considerably less than 1.1 mm, and the CD substrate therefore has to be thinned down. The quality of the reading signals obtained is increased by increasing the length of the optically readable structures of the CD layer in comparison with the values which are usual in this case. Because of the difficulties which certain CD players have in focussing when the substrates are thin, the refractive index of the disc material used is reduced from the figure for polycarbonate, at least in the case of the CD substrate, the recommended range being between 1.40 and 1.55.

Abstract: Methods and apparatuses are provided for use with optical data storage media and related devices.

Abstract: A method is provided for making the storage media having data stored thereon. In one aspect of the making of storage media, a first layer is formed, where the first layer is substantially transparent to a predetermined first radiant energy used for reading the data. Next, a second layer is formed on the first layer, which is substantially opaque to the first radiant energy. Finally, a pattern is formed that comprises a plurality of holes in the second layer, where each of the holes have a largest dimension which is greater than a wavelength of the first radiant energy, and the data is stored as the presence or absence of a hole in the pattern.

Abstract: The present invention relates to apparatuses and processes for recording dye-based recordable DVD media in higher quality at higher linear recording velocity, and provides an apparatus for recording a dye-based recordable DVD medium comprising a shortest mark recording unit, a second mark recording unit, and a cooling pulse irradiating unit, wherein the dye-based recordable DVD medium comprises a substrate and a recording layer formed on the substrate, the substrate comprises a guide groove to which wobble is formed, and the recording layer comprises at least an organic dye, the shortest mark recording unit is configured to record each of the shortest marks by use of one pulse beam of which the rear edge is more energized than the front edge, the second mark recording unit is configured to record each of the marks other than the shortest marks by use of one pulse beam of which the two sites of front and rear edges are energized, the cooling pulse irradiating unit is configured to irradiate cooling pulse laser

Abstract: A storage media for storage of data thereon is provided. The storage media including: a first layer, the first layer being substantially transparent to a predetermined radiant energy used for reading the data; and a second layer formed on the first layer and being substantially opaque to the radiant energy, the second layer having a pattern comprising a plurality of holes, each of the holes having a largest dimension which is greater than a wavelength of the radiant energy, the data being stored as the presence or absence of a hole in the pattern. Also provided are a method for fabricating the storage media as well as an apparatus and method for reading the data stored on the storage media.

Abstract: An optical recording medium comprises a transparent lower disk and an upper disk secured together by a transparent intermediate member. On one side of the lower disk, groove tracks of width WG0 and land tracks of width WL0 are formed. All tracks of the lower disk are coated with a recording film on which a laser beam is incident from below and a reflecting film on the recording film for partially reflecting the laser beam. The upper disk is formed with land tracks of width WL1 and groove tracks of width WG1 for receiving light through the corresponding groove and land tracks of the lower disk. All tracks of the upper disk are also coated with laminated recording and reflecting films. The ratio WG1/WL1 of the upper disk is greater than unity and is equal to or greater than the ratio WG0/WL0 of the lower disk so that the carrier-to-noise ratios of the two disks are substantially equal to each other.

Abstract: An optical disc with a first recording layer has first data pits that include 14T data pits formed thereon in compliance with DVD-ROM specifications. A first reflective film is formed on the first recording layer, whereby the first reflective film has the relationship of 2.3?Pw/Tf?14 between the 14T pit width and the first reflective film thickness. The disc also includes a second recording layer having a first surface and an opposed second surface, whereupon second data pits are formed on the first surface in compliance with BD-ROM specifications. A second semi-transparent reflective film is formed on the second recording layer, while a transparent layer having opposed third and fourth surfaces is formed over the second reflective film at the third surface, such that the fourth surface allows a laser beam to pass therethrough in reproduction from either the first or second data pits.

Abstract: An optical pickup device comprises a first laser light source and a second laser light source that emit first laser light and second laser light, respectively, and further comprises an objective lens that receives the first and second laser light. The first laser light and the second laser light have different focal lengths from a principal point of the objective lens in accordance with a distance between a signal layer of a signal recording medium and a label layer of the signal recording medium. When the first laser light source and the second laser light source are simultaneously driven, the first laser light and the second laser light are controlled to simultaneously focus on the signal layer of the signal recording medium and the label layer of the signal recording medium, respectively. Thus, label information can be recorded simultaneously with recording of main information.

Abstract: An optical read/write apparatus causes a read/write light beam from illuminating means to strike only one side of an optical storage medium including stacked data storage layers each of which is readable/writeable separately from the other layers. In this case, the optical read/write apparatus operates so that data is read/written from/into a second data storage layer after fully recording a recordable area of a first data storage layer. Thus, light can be shone with uniform intensity across the substantially entire recordable area of the second data storage layer without using a complex read/write system even under such conditions that the transmittance to light of the first data storage layer in the recordable area may vary depending on whether any data is recorded in the recordable area.

Abstract: Ternary optical data storage method and apparatus for Write Once Read Many Times (WORM) optical data storage with two-photon fluorescent writing and readout. The data storage capacity is limited by the optical resolution of a system. In CD/DVD systems, an increase in the aerial data density has been primarily achieved by decreasing the bit dimension. However, the size of the optical spot (bit) is restricted by limitations imposed by the diffraction of light (Rayleigh criterion). Therefore, technologies that can effectively create and detect spot sizes beyond the diffraction limit (sub-Rayleigh) hold promise to achieving high-density optical storage.

Abstract: A recording medium including a ferroelectric layer, a nonvolatile memory device including the recording medium and methods of wiring and reading data in the memory device. The recording medium includes: a lower electrode; a ferroelectric layer to which data is recorded, formed on the lower electrode; a barrier layer formed on the ferroelectric layer; and a semiconductor layer formed on the barrier layer. The nonvolatile memory device includes a probe that reads and writes the data. Furthermore, in the method of writing data, a writing voltage is applied between the probe, which contacts the semiconductor layer, and the lower electrode and, in the method of reading data, a state of a remanent polarization of the ferroelectric layer is determined by applying a reading voltage between the probe and the semiconductor layer.

Abstract: An optical read/write apparatus causes a read/write light beam from illuminating means to strike only one side of an optical storage medium including stacked data storage layers each of which is readable/writeable separately from the other layers. In this case, the optical read/write apparatus operates so that data is read/written from/into a second data storage layer after fully recording a recordable area of a first data storage layer. Thus, light can be shone with uniform intensity across the substantially entire recordable area of the second data storage layer without using a complex read/write system even under such conditions that the transmittance to light of the first data storage layer in the recordable area may vary depending on whether any data is recorded in the recordable area.

Abstract: An optical recording medium illuminated by light from a light source as near-field light using a focusing lens whose numerical aperture exceeds 1 to perform recording and/or reproduction is provided, wherein a composite layer in which a high refractive index material portion having a refractive index higher than that of a light-transmissible material portion is mixed in the light-transmissible material portion is provided on the surface of a light incident side of the optical recording medium. With an average refractive index of the composite layer being high, a numerical aperture controlled by a refractive index of a surface layer can be made large to obtain higher resolution and higher durability against contact with a lens or the like.

Abstract: A test optical disk and a manufacturing method thereof are provided, comprising at least one bit value at a default position in an original image data, forming an error bit by reverting the captured bit value, storing error data consisted of error bits back to the default position in the original image file to form a test image data, and writing the test image file onto an optical disk. Furthermore, the steps of setting an error amount, selecting an error mode, and selecting a distribution method are further used to determine a length of the error data and the distribution of the default position thereof. This way, not only optical disks simulating various error statuses can be produced, but also the error statuses have reproducibility to help developers to improve the optical disk technology.

Abstract: An object of the present invention is to provide a marking forming apparatus, a method of forming a laser marking on an optical disk, a reproduction apparatus, an optical disk, and a method of manufacturing an optical disk, capable of providing a greatly improved copy prevention capability as compared to prior known construction. To achieve this object, in the optical disk of the invention, for example, a marking is formed by a laser on a reflective film of a disk holding data written thereon and at least position information of the marking or information concerning the position information is written on the disk in an encrypted form or with a digital signature appended thereto.

Abstract: An optical disc having machine-readable, information-encoding features is provided with a barrier layer secured to the disc. This barrier layer is configured to prevent machine-reading of the features. A reading-inhibit agent, included in the disc and activated by removal of the barrier layer, is operative, once activated, to alter the disc to inhibit reading of the disc, after some period of time. Alternately, the barrier layer can be eliminated, and the reading-inhibit agent can be activated by initial reading of the disc, as for example by exposure to optical radiation associated with reading of the disc, or rotation of the disc.