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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 23746. Отображено 100.
12-01-2012 дата публикации

Optical information recording reproduction apparatus and optical information recording reproduction method

Номер: US20120008484A1
Автор: Hisayuki Yamatsu, Tetsuhiro Sakamoto
Принадлежит: Sony Corp

An optical information recording reproduction apparatus includes: a first light beam source; a second light beam source emitting a beam with a wavelength shorter than that of the first light beam source; and an object lens condensing the beams from the first and second light beam sources to an optical information recording medium. When information is recorded in the optical information recording medium, a recording beam is emitted from the first light beam source and a beam used to generate a signal for controlling a position of the object lens is emitted from the second light beam source. When the information of the optical information recording medium is reproduced, a reproduction beam is emitted from the second light beam source.

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Номер записи: 1
12-01-2012 дата публикации

Objective Lens, Optical Pickup Apparatus, and Optical Information Recording Reproducing Apparatus

Номер: US20120008485A1
Автор: Eigo Sano, Yuichi Ozaki
Принадлежит: Konica Minolta Opto Inc

An objective lens relating to the present invention includes a first optical path difference providing structure in which a first basic structure and a second basic structure are overlapped with each other. The first basic structure is a blaze-type structure which emits a Xth-order diffracted light flux, when the first light flux passes through the first basic structure, where the value of X is an odd integer. At least a part of the first basic structure arranged around an optical axis includes a step facing an opposite direction to the optical axis. The second basic structure is a blaze-type structure which emits a Lth-order diffracted light flux, when the first light flux passes through the second basic structure, where the value of L is an even integer. At least a part of the second basic structure arranged around the optical axis includes a step facing the optical axis.

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Номер записи: 2
12-01-2012 дата публикации

Composition comprising various proteorhodopsins and/or bacteriorhodopsins and use thereof

Номер: US20120010333A1
Автор: Bradley R. Kelemen, Gregory M. Whited, II Donald E. Ward, Rasmus B. Jensen, Richard R. Bott
Принадлежит: DANISCO US INC, Genencor International Inc

The present invention provides a solid material comprising an immobilized mixture of two or more proteorhodopsins, two or more bacteriorhodopsins, or one or more bacteriorhodopsin and one or more proteorhodopsins. The proteorhodopsins are selected from the group consisting of all-trans-retinal-containing proteorhodopsins and retinal analog-containing proteorhodopsins; all of which have absorption spectra that do not overlap. The bacteriorhodopsins are selected from the group consisting of all-trans-retinal-containing bacteriorhodopsins and retinal analog-containing bacteriorhodopsins; all of which have absorption spectra that do not overlap. The present invention also provides an optical information carrier, such as an optical data storage material and a fraud-proof optical data carrier, comprising the above-described solid material and a substrate selected from the group consisting of glass, paper, metal, fabric material, and plastic material, wherein said solid material is deposited on said substrate. The present invention further provides security ink comprising one or more hydrophilic polymers and a mixture of various photochromic materials.

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Номер записи: 3
12-01-2012 дата публикации

Information storage medium, reproducing method, and recording method

Номер: US20120011525A1
Автор: Hideo Ando, Koji Takazawa, Seiji Morita
Принадлежит: Individual

According to one embodiment, an information storage medium includes an organic dye material which records information with a light beam having a wavelength equal to or smaller than 620 nm.

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Номер записи: 4
26-01-2012 дата публикации

Network-based real-time optic disc writer device

Номер: US20120020196A1
Автор: Mao Huai Weng, Wen Chu Chuang
Принадлежит: Acard Technology Corp

A network-based real-time optic disc writer device has at least two disc writer assemblies and a monitoring unit. Each of the disc writer assemblies has a disc writer unit and host controller with a detection unit. The disc writer unit is electrically connected to the host controller and has a robotic arm, at least two disc writers, and an optic disc deposition zone. The at least two disc writers and the optic disc deposition zone are arranged at one side of the robotic arm to allow the robotic arm to selectively pick up and deposit optic discs and also to allow the at least two disc writers to perform continuous writing to optic discs. The monitoring unit communicates with the host controller of each of the disc writer assemblies, so as to enable ready communication through networks, real-time notification and monitoring and continuous, un-interrupted writing operation of optic discs.

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Номер записи: 5
23-02-2012 дата публикации

Traverse module and optical disc drive utilizing the same

Номер: US20120047522A1
Автор: Teng-Yuan Chang
Принадлежит: Hon Hai Precision Industry Co Ltd

A traverse module of an optical disc drive includes a base and a cover connected to the base that includes at least one spring tab integrally formed therewith. A pair of guide bars is connected to the base. A pickup head module is slidably connected to the guide bars. At least one adjusting member is movably connected to the base. The at least one adjusting member supports at least one of the guide bars and the at least one spring tab presses against the at least one of the guide bars, the at least one adjusting member is able to urge the at least one of the guide bars to move.

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Номер записи: 6
01-03-2012 дата публикации

Optical pickup apparatus

Номер: US20120051205A1
Автор: Chiaki Asakawa, Mitsuhiro Hiruma
Принадлежит: Sanyo Electric Co Ltd

Provided is an optical pickup apparatus using a reduced number of parts. An optical pickup apparatus ( 26 ) of the present invention includes: a laser unit ( 108 ) for emitting a laser beam complying with the BD standards; a laser unit ( 106 ) for emitting a laser beam complying with the DVD standards and a laser beam complying with the CD standards; and a PDIC ( 10 B) for receiving and detecting the laser beams complying with the respective standards. Because the laser beam complying with the DVD standards and the laser beam complying with the BD standards are received by one photo detector provided in the PDIC ( 10 B), the number of parts needed for the optical pickup apparatus ( 26 ) can be reduced, and the costs of the apparatus can be decreased.

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Номер записи: 7
05-04-2012 дата публикации

Optical pickup device

Номер: US20120082021A1
Автор: Ui-yol Kim, Yong-Jae Lee
Принадлежит: Toshiba Samsung Storage Technology Korea Corp

An optical pickup device, an optical drive using the same, and a method of forming a beam spot are provided. The optical pickup includes a light source system that includes a light source corresponding to at least one of a digital versatile disc (DVD) and a Blu-ray disc (BD). The light source forms a beam spot having an oval shape with a long axis and a short axis on an information recording track of the disc, and the light source is disposed such that the long axis is maintained at an angle ranging from 0° to 30° with respect to a radial direction passing through a rotation center of the disc.

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Номер записи: 8
12-04-2012 дата публикации

Method of writing data to a disc, disc drive

Номер: US20120087223A1
Автор: Johannes Franciscus Petrus Claas, Marc Angeline Jozef Cas, Stefan Geusens
Принадлежит: Lite On IT Corp

The invention relates to a method of writing data to a disc (OD). The method comprised: a) performing a plurality of writing actions in which a plurality of data portions are written to the disc, b) performing a plurality of verification actions in which written data portions are at least partly verified and at least part of the data portions are replaced if needed. The method further comprises a2) performing a decision action for each writing action in which a decision whether or not to perform the verification action for a specific written data portion is taken.

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Номер записи: 9
03-05-2012 дата публикации

Optical head device and optical disc device

Номер: US20120106310A1
Автор: Hironori Nakahara, Kenya Nakai, Masahisa Shinoda, Masayuki Omaki, Nobuo Takeshita
Принадлежит: Mitsubishi Electric Corp

An optical head device mounted in an optical disc device. The optical head device is provided with a diffractive optical element and a photodetector. The diffractive optical element has: a primary diffraction region at a location on which the positive and negative first-order components and some of the zero-order component of a reflectively diffracted light beam are incident; and secondary diffraction regions at locations on which the rest of the zero-order component but none of the positive or negative first-order components of the reflectively diffracted light beam are incident. A main light-receiving section of the photodetector receives the zero-order component of a transmissively diffracted light beam that has passed through the primary diffraction region and the secondary diffraction regions. Secondary light-receiving sections receive the positive first-order component and/or the negative first-order component of the transmissively diffracted light beam that has passed through the secondary diffraction regions.

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Номер записи: 10
10-05-2012 дата публикации

Information recording medium, optical information recording and reproducing apparatus, optical information recording and reproducing method and manufacturing method of information recording medium

Номер: US20120113772A1
Автор: Noboru Yamada, Teruhiro Shiono
Принадлежит: Panasonic Corp

To provide an information recording medium which is capable of reducing damage to a recording layer while improving environmental resistance of the recording layer and which enables information to be recorded or reproduced at a high density and a high sensitivity, an optical information recording and reproducing apparatus, an optical information recording and reproducing method, and a manufacturing method of an information recording medium. An information recording medium ( 24 ) includes: a substrate ( 1 ); first to m th (where m is an integer equal to or greater than 1) recording layers ( 2 ) respectively provided on an incident side of recording light or reproducing light with respect to the substrate ( 1 ) in order of distance closer to the incident side; and first to m th (where m is an integer equal to or greater than 1) negative refractive index layers ( 3 ) respectively provided on the incident side of the recording light or the reproducing light with respect to the m th recording layer ( 2 ) in order of distance closer to the incident side, wherein an i th (1≦i≦m) recording layer ( 2 ) and an i th negative refractive index layer ( 3 ) are alternately provided on the substrate ( 1 ), and the first to m th negative refractive index layers ( 3 ) effectively have a negative refractive index at a wavelength of the recording light or the reproducing light.

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Номер записи: 11
10-05-2012 дата публикации

Read-only optical recording medium

Номер: US20120113789A1
Автор: Jun Nakano, Naoki Okawa, Takehide Endo, Tetsuhiro Sakamoto
Принадлежит: Sony Corp, Sony DADC Corp

[Object] To provide a durable read-only optical recording medium having less variances in characteristics of a metal reflective film due to a temporal change. [Solving Means] Provided is a read-only optical recording medium ( 100 ) including: a substrate ( 101 ); an information recording surface onto which information is recorded by combining pits (P) and lands (L); and a metal reflective film ( 102 ) that is provided in contact with the information recording surface and represented by Al 100-x-z X x Z z , where x and z each represent an atomic %, X is constituted of an element including at least Ti, Z is constituted of an element including at least Fe, x is 1.0 to 3.0, and z is 0.05 to 1.0.

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Номер записи: 12
24-05-2012 дата публикации

Optical pickup

Номер: US20120127845A1
Автор: Jun Hato, Katsuhiko Kimura, Zhi Yan GAO
Принадлежит: Hitachi Media Electronics Co Ltd

An optical pickup includes an objective lens, a lens holder which holds the objective lens, a focusing coil attached to the lens holder having the winding axis directed at the optical axis of the objective lens, and a magnet provided opposite the side surface of the lens holder. A protruding portion is attached to the side surface of the lens holder at a side apart from the objective lens with respect to the optical axis direction of the objective lens farther than the focusing coil.

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Номер записи: 13
31-05-2012 дата публикации

Optical disc, optical disc manufacturing method, optical disc recording device and optical disc reproduction device

Номер: US20120134250A1
Автор: Keiji Nishikiori, Makoto Usui, Mamoru Shoji, Masaru Yamaoka, Mitsuro Moriya
Принадлежит: Individual

An optical disc includes a reflective film formed on concave and convex marks after the concave and convex marks are synchronized with the integral multiple of a channel bit length and formed in accordance with modulated main information. Thereafter, continuous or intermittent laser light synchronized with the integral multiple of the channel bit length is irradiated at intervals longer than the longest one of the concave and convex marks in accordance with a spiral track formed in a circumferential direction of the concave and convex marks, whereby an optical characteristic of the reflective film is changed to form a recordable mark and sub-information necessary to reproduce the main information is recorded in a superimposition manner.

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Номер записи: 14
07-06-2012 дата публикации

Method for detecting obliquity of optical disc drive based on function between obliquity and central error signal bias

Номер: US20120140608A1
Автор: Chih-Bo LIN, Song-Ruei Chen
Принадлежит: Quanta Storage Inc

A method for detecting an obliquity of an optical disc drive is disclosed. The method includes the following steps: setting up and storing a function between the obliquity and a central error signal bias by performing a current level calibration upon a plurality of obliquities of the optical disc drive predetermined to be tested to obtain corresponding central error signal biases; performing the current level calibration upon an objective lens of the optical disc drive; obtaining a calibrated central error signal bias; and acquiring the obliquity of the optical disc drive by interpolating or extrapolating the calibrated central error signal bias according to the stored function between the obliquity and the central error signal bias.

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Номер записи: 15
07-06-2012 дата публикации

Data disc, method and system of forming the disc

Номер: US20120141718A1
Автор: Alan Bruce Hamersley, John Matthew Town, Patrick J. Byrne, Thomas Hartmann
Принадлежит: Alan Bruce Hamersley, Byrne Patrick J, John Matthew Town, Thomas Hartmann

A data disc, method and apparatus for forming the disc are disclosed. The data disc includes a first substrate structure bonded to a second substrate structure, with two curable material layers disposed on different sides of at least one of the two substrate structures, and at least one groove formed on a surface of one of the two curable material layers.

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Номер записи: 16
14-06-2012 дата публикации

Light-emitting device

Номер: US20120147602A1
Автор: Toshiaki Konno, Yoshihiro Someno
Принадлежит: Alps Electric Co Ltd

A holding hole of a holding body has an edge portion and an inner peripheral surface which is a concavely curved surface connected to the edge portion. In a light source unit which supports a light source, projections are formed at three locations, and each of front surfaces thereof has a convexly curved line having a curvature radius longer than that of the inner peripheral surface. When the light source unit is inserted into the holding hole, the front surfaces of the projections at the three locations are brought into point contact with the edge portion at contact portions on the convexly curved lines. By performing laser welding at these contact portions, the attitude of the light source unit after its tilt adjustment can be stabilized and fixed to the holding body.

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Номер записи: 17
14-06-2012 дата публикации

Reproducing apparatus and reproducing method

Номер: US20120147725A1
Автор: Daisuke Ueda, Hirotaka Miyamoto, Kimihiro Saito
Принадлежит: Sony Corp

A reproducing apparatus includes: a first laser irradiation section irradiating an optical recording medium having a bulk recording layer and recording marks formed by focusing a laser beam on each predetermined layer position in the recording layer, with a first laser beam through an objective lens; a focus position adjusting section adjusting a focus position of the first laser beam; a beam receiving section receiving a reflected beam of the first laser beam from the marks and generating a light receiving signal; a reproducing section reproducing information recorded with the marks based on the light receiving signal; and a control section performing control to allow the focus position in reproduction of the information to correspond to a position shifted by a certain distance to an upper layer side from a focus position of the laser beam in forming the mark at the layer positions as a reproducing object.

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Номер записи: 18
14-06-2012 дата публикации

Optical head device, optical information device, and information processing device

Номер: US20120151508A1
Автор: Hideki Nakata, Joji Anzai, Keisuke Fujimoto, Kousei Sano, Takeharu Yamamoto, Takeshi Shimamoto, Yasumori Hino, Yoshiaki Komma
Принадлежит: Panasonic Corp

When information is recorded or reproduced on or from an optical information medium having three or more recording layers using blue light, interference by another layer light is reduced and, when information is reproduced from an optical information medium using red light, an S/N ratio is held excellently high. An optical head device includes a first laser light source ( 1 ) which emits blue light, a second laser light source ( 2 ) which emits red light, an objective lens ( 11 ) which focuses the blue light onto a recording layer of a first optical disc ( 12 ) or focuses the red light onto a recording layer of a second optical disc ( 13 ), a photodetector ( 9 ) which receives the blue light reflected by the recording layer of the first optical disc ( 12 ) or the red light reflected by the recording layer of the second optical disc ( 13 ) and outputs an electric signal in accordance with an amount of the received blue light or red light, and a wavelength selective light blocking region ( 7 x ) which blocks a predetermined range of the blue light including an optical axis thereof to prevent the predetermined range from reaching the photodetector ( 9 ), and transmits the red light.

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Номер записи: 19
05-07-2012 дата публикации

Optical head device, optical information device and information processing device

Номер: US20120170431A1
Автор: Kousei Sano, Yoshiaki Komma
Принадлежит: Panasonic Corp

An optical head device includes a light blocking region ( 7 y ) which is disposed on a light flux of a reflected light beam resulting from reflection by a recording layer on which a blue light beam is focused, and blocks, when there are at least two recording layers on a blue light beam incident side of the recording layer on which the blue light beam is focused or on a side thereof opposite to the blue light beam incident side, reflected light beams resulting from reflection by the at least two recording layers which are incident on a region in a photodetector ( 9 ) where the reflected light beams resulting from the reflection by the at least two recording layers interfere with each other. The light blocking region ( 7 y ) is not formed on an optical axis of the reflected light beam resulting from the reflection by the recording layer on which the blue light beam is focused. This configuration allows an improvement in the S/N ratio of a signal outputted from the photodetector.

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Номер записи: 20
12-07-2012 дата публикации

Recording layer for optical information recording medium, optical information recording medium, and sputtering target

Номер: US20120176883A1
Автор: Takeshi Miki, Yasuhiro Sone, Yoko Shida, Yuki Tauchi
Принадлежит: Kobe Steel Ltd, Sony Corp

A recording layer for optical information recording medium excellent in recording property, an optical information recording medium including the recording layer and a sputtering target useful for formation of the recording layer are provided. A recording layer for an optical information recording medium on which recording is performed through irradiation with laser light, the recording layer including an oxide of a metal of which an absolute value of the standard free energy of oxide formation per 1 mol of oxygen is larger than that of Pd (hereinafter referred to metal X) and a Pd oxide, wherein the Pd oxide includes a Pd monoxide and a Pd dioxide, and wherein a ratio of the Pd atom to a total of the metal X atom and the Pd atom which are contained in the recording layer is 4 to 85 atomic %.

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Номер записи: 21
02-08-2012 дата публикации

Thin Film Comprising Titanium Oxide as Main Component and Sintered Compact Sputtering Target Comprising Titanium Oxide as Main Component

Номер: US20120196076A1
Автор: Hideo Takami, Masataka Yahagi
Принадлежит: JX Nippon Mining and Metals Corp

A thin film comprising titanium oxide as its main component includes titanium, oxygen and copper, content of Ti is 29.0 to 34.0 at % and content of Cu is 0.003 to 7.7 at % or less with remainder being oxygen and unavoidable impurities. A ratio of oxygen component to metal components, O/(2 Ti+0.5 Cu), is 0.96 or higher. The thin film has a high refractive index and low extinction coefficient. A sintered compact sputtering target suitable for producing the foregoing thin film is also provided and can be used to obtain a thin film with superior transmittance and low reflectance and which is effective as an interference film or protective film of an optical information recording medium, and to obtain a thin film that can be applied to a glass substrate; that is, a thin film that can be used as a heat ray reflective film, antireflection film, and interference filter.

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Номер записи: 22
09-08-2012 дата публикации

Optical information recording medium

Номер: US20120201993A1
Автор: Hiroshi Tabata
Принадлежит: Sony Corp

An optical information recording medium including: a substrate; two or more information signal layers provided on the substrate; and a cover layer provided on the information signal layers, wherein the surface of one of the side of the substrate and the cover layer is a light irradiation plane, wherein at least one of the information signal layers other than the information signal layer at the deepest portion from the light irradiation plane includes an inorganic recording layer that includes a W oxide and a Pd oxide, a first protective layer that is provided on a first principal plane of the inorganic recording layer, and a second protective layer that is provided on a second principal plane of the inorganic recording layer, wherein at least one of the first protective layer and the second protective layer is a layer with an extinction coefficient of 0.05 to 0.6.

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Номер записи: 23
16-08-2012 дата публикации

Semiconductor light emitting device, optical pickup unit and information recording/reproduction apparatus

Номер: US20120205680A1
Автор: Abe Hiroaki, FUJIMOTO Tsuyoshi, Kentaro Aoshima, Kudou Hisashi, Yuji Furushima
Принадлежит: Sony Corp

A semiconductor light emitting device downsized by devising arrangement of connection pads is provided. A second light emitting device is layered on a first light emitting device. The second light emitting device has a stripe-shaped semiconductor layer formed on a second substrate on the side facing to a first substrate, a stripe-shaped p-side electrode supplying a current to the semiconductor layer, stripe-shaped opposed electrodes that are respectively arranged oppositely to respective p-side electrodes of the first light emitting device and electrically connected to the p-side electrodes of the first light emitting device, connection pads respectively and electrically connected to the respective opposed electrodes, and a connection pad electrically connected to the p-side electrode. The connection pads are arranged in parallel with the opposed electrodes.

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Номер записи: 24
23-08-2012 дата публикации

Optical head, optical disc device, information processing device, and objective lens

Номер: US20120213052A1
Автор: Fumitomo Yamasaki, Katsuhiko Hayashi, Yoshiaki Komma
Принадлежит: Panasonic Corp

Provided are an optical head capable of favorably recording or reproducing information to or from an information recording medium including a plurality of information recording surfaces, an optical disc device including the optical head, an information processing device including the optical disc, and an objective lens. The optical head ( 40 ) includes a blue-violet laser light source ( 1 ) which emits a blue-violet laser beam, an objective lens ( 8 ) which has an orbicular zone-shaped diffractive structure, and which diffracts the blue-violet laser beam and converges the generated diffracted light of n-th order (where n is a natural number) on a predetermined information recording surface of a multi-layer optical disc ( 60 ), and a light-receiving element ( 23 ) which receives the blue-violet laser beam reflected by the predetermined information recording surface, wherein the diffractive structure adds a positive power component and a spherical aberration component to the n-th order diffracted light.

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Номер записи: 25
13-09-2012 дата публикации

Photopolymer formulation having different writing comonomers

Номер: US20120231377A1
Автор: Dennis Hönel, Friedrich-Karl Bruder, Jorg Hofmann, Marc-Stephan Weiser, Thomas Fäcke, Thomas Rölle
Принадлежит: Individual

The invention relates to a photopolymer formulation comprising matrix polymers, writing monomers, and photo initiators, comprising a combination of at least two different writing monomers. The invention further relates to the use of the photopolymer formulation for producing optical elements, in particular for producing holographic elements and images, to a method for producing the photopolymer formulation and to a method for illuminating holographic media made of the photopolymer formulation.

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Номер записи: 26
20-09-2012 дата публикации

Selection method for additives in photopolymers

Номер: US20120237856A1
Автор: Christian Diedrich, Dennis Hönel, Friedrich-Karl Bruder, Marc-Stephan Weiser, Thomas Fäcke, Thomas Rölle
Принадлежит: Bayer Intellectual Property GmbH

The invention relates to a method for selecting compounds which can be used as additives in photopolymer formulations for producing light holographic media, and to photopolymer formulations which contain at least one softener which are selected according to the claimed method. The invention also relates to the use of photopolymer formulations for producing holographic media.

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Номер записи: 27
27-09-2012 дата публикации

Media processing system, control method for media processing system, and media processing device

Номер: US20120243050A1
Автор: Hidetoshi Maeshima
Принадлежит: Seiko Epson Corp

A media processing system enables producing a copy of media based on the state of media deterioration. An error rate measurement unit measures the error rate of recorded media after specific data is written to the media; an error rate evaluation unit determines if the media error rate measured by the error rate measurement unit is less than or equal to a preset threshold value; and a data recording unit that, when the error rate evaluation unit determines the error rate exceeds the specific threshold value, writes specific data recorded to the recorded media to other unused media.

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Номер записи: 28
04-10-2012 дата публикации

Optical disc device and recording method

Номер: US20120250482A1
Автор: Takeshi Ogata
Принадлежит: Hitachi Consumer Electronics Co Ltd

An optical disc device and a recording method is provided in which information can be additionally recorded on an optical disc, which has a servo layer and recording layers separately formed, by accurately correcting a relative angle between a light beam and the optical disc used in the previous recording without providing an area where recording is not performed while maintaining the stability of tracking servo. The above subject can be solved by studying with high accuracy the relative angle between the optical disc and the optical axis used in the previous recording by applying a radial tilt servo according to a signal from the recording layers with the tracking servo applied by the servo layer. Further, the additional recording can be performed stably by fixing the radial tilt at the previously studied angle when the recording is performed.

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Номер записи: 29
11-10-2012 дата публикации

Optics with Simultaneous Variable Correction of Aberrations

Номер: US20120257278A1
Автор: Aleksey Nikolaevich Simonov, Michiel Christiaan Rombach
Принадлежит: Akkolens International BV

The invention refers to an optical system comprising at least two optical elements of which at least one is movable relative to the other in a direction perpendicular to the optical axis of the optical system, wherein the combination of optical elements is adapted to correct variable aberrations of at least two different orders simultaneously of which the degree of correction depends on the relative position of the optical elements. This optical system is adapted to correct aberrations which are variable and dependent on the position of the lens with respect to the subject/imaging plane. Further the optical system is adapted to correct aberrations varying along with defocus of the system. These aberrations may include second order aberrations, meaning defocus and astigmatism, third-order aberrations, meaning comas and trefoils, fourth-order aberrations, for example, spherical aberration, and further higher-order aberration terms.

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Номер записи: 30
08-11-2012 дата публикации

Optical pickup and optical information storage medium system using the same

Номер: US20120281516A1
Автор: Jin-Ho Jung
Принадлежит: Toshiba Samsung Storage Technology Korea Corp

An optical pick-up is provided. The optical pick-up includes a light source, a first objective lens configured to focus light emitted from the light source on a high-density optical information storage medium, a photo-detector configured to detect a signal by receiving light reflected from the high-density optical information storage medium, an optical-path changer configured to convert a travel path of incident light to allow the light emitted from the light source to proceed toward the high-density optical information storage medium, and to allow the light reflected from the high-density optical information storage medium to proceed toward the photo-detector, and a blocking device disposed in an optical path of signal light reflected from a target reproducing/recording layer of the high-density optical information storage medium, passes through the first objective lens, and proceeds toward the photo-detector.

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Номер записи: 31
15-11-2012 дата публикации

Holographic sensor

Номер: US20120288785A1
Автор: Hosam Sherif, Izabela Naydenova, Raghavendra Jallapuram, Suzanne Martin, Vincent Toal
Принадлежит: Dublin Institute of Technology

A sensor device comprising a holographic element comprises a grating or hologram recorded in a holographic recording medium wherein at least one physical and/or chemical and/or optical characteristic of the holographic element or the image produced by it varies as a result of variation in relative humidity or moisture content in the air surrounding the element. Also provided is an acrylamide-based photopolymer and an acrylamide-based reflection hologram.

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Номер записи: 32
06-12-2012 дата публикации

Optical disc apparatus

Номер: US20120307611A1
Автор: Shinya Shimizu
Принадлежит: Funai Electric Co Ltd

An optical disc apparatus includes an optical pickup that emits light to an optical disc and receives reflection light reflected by the optical disc, a temperature sensor for detecting ambient temperature of the optical pickup, a temperature control processing portion that performs a process corresponding to temperature information obtained by the temperature sensor, and a filter portion that performs filtering of a signal about the temperature information during a period until the temperature information detected by the temperature sensor is input to the temperature control processing portion.

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Номер записи: 33
13-12-2012 дата публикации

Near-Field Transducers for Focusing Light

Номер: US20120314549A1
Автор: Amit Vasant Itagi, Kaizhong Gao, Lien Lee, William Albert Challener, Xuhui Jin
Принадлежит: SEAGATE TECHNOLOGY LLC

An apparatus includes a waveguide shaped to direct light to a focal point, and a near-field transducer positioned adjacent to the focal point, wherein the near-field transducer includes a dielectric component and a metallic component positioned adjacent to at least a portion of the dielectric component. An apparatus includes a waveguide shaped to direct light to a focal point, and a near-field transducer positioned adjacent to the focal point, wherein the near-field transducer includes a first metallic component, a first dielectric layer positioned adjacent to at least a portion of the first metallic component, and a second metallic component positioned adjacent to at least a portion of the first dielectric component.

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Номер записи: 34
03-01-2013 дата публикации

Method and apparatus for data storage

Номер: US20130003514A1
Автор: Meinolf Blawat
Принадлежит: Individual

A method and an apparatus for data storage based on fibers are described. Data are stored as marks in a surface of a fiber or in a volume near the surface of the fiber. Data marks are written to or read from the fiber by irradiating the surface of the fiber with at least one radiation beam. The fiber has calibration marks for controlling a speed of the fiber relative to the at least one radiation beam.

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Номер записи: 35
10-01-2013 дата публикации

Optical pickup apparatus

Номер: US20130010178A1
Автор: Shinzoh Murakami
Принадлежит: Sharp Corp

There is provided an optical pickup apparatus. In an optical pickup apparatus, a focus diffraction region includes focus regions of which a number of types is equal to a number of types of light that can be emitted by a light source. The types of the focus regions correspond to the respective types of light, the respective focus regions diffract the corresponding types of light toward same positions of focus light-receiving regions. The focus regions include a plurality of focus segmented regions. The plurality of focus segmented regions of the respective types of focus regions are periodically distributed in the focus diffraction region, and at least some of the focus segmented regions are disposed to be adjacent to focus segmented regions for different types of light.

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Номер записи: 36
31-01-2013 дата публикации

Optical disk apparatus

Номер: US20130028063A1
Автор: Fumio Isshiki
Принадлежит: Hitachi Media Electronics Co Ltd

The amplitude deviation of a tracking error signal in an optical disk apparatus is reliably corrected by processing signals at low costs. A servo signal generator generates a tracking error signal and a lens error signal from a photodetected signal. A lens error deviation signal memory circuit stores the lens error signal generated at the servo signal generator, and reproduces the one-turn deviation of the lens error signal. A tracking error signal corrector learns an amplitude correcting value for the tracking error signal from the tracking error signal detected in reproducing the one-turn deviation of the lens error signal, and stores the amplitude correcting value in a correcting signal generator.

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Номер записи: 37
14-02-2013 дата публикации

Optical element retaining device, optical element transfer device and optical pickup device

Номер: US20130039161A1
Автор: Koichi Matsuyama, Mitsuhiro Hashimoto
Принадлежит: Sanyo Electric Co Ltd, Sanyo Optec Design Co Ltd

An element holding device of the present invention includes: a guide portion engaging with a guide shaft; a lens fixing portion on which to fix a collimator lens; an arm portion; an insertion portion having a hole portion in which to insert a guide shaft; a wire fixing portion made by protruding a side surface of the insertion portion in a −Y direction; and a wire fixed on the wire fixing portion. A bent portion being a leading end portion of the wire is housed in a slit. Thereby, excess deformation of a contact portion is suppressed.

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Номер записи: 38
28-02-2013 дата публикации

Objective lens holder, objective lens driving device, optical pickup device, and method for manufacturing objective lens driving device

Номер: US20130051210A1
Автор: Noboru Tajiri, Shingo Matsuzaki, Shunichi Morimoto
Принадлежит: Sanyo Electric Co Ltd

Provided are a small objective lens (OBL) holder in which coils can be easily incorporated, and the like. An OBL holder of the present invention includes: a main surface portion provided with a circular opening portion in which an objective lens is fixed; and four side wall portions integrally extending downward from a peripheral portion of the main surface portion. The side wall portions include: a first side-wall portion extending in a longitudinal direction of the OBL holder; a second side-wall portion opposed to the first side-wall portion; a third side-wall portion extending in a short-side direction of the OBL holder; and a fourth side-wall portion, which are provided on the rear, front, right and left sides in the drawing, respectively. Accommodation regions capable of accommodating focusing coils are arranged on one side and the other side of the objective lens.

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Номер записи: 39
07-03-2013 дата публикации

Method for calibrating tilt of actuator by offsetting control voltage

Номер: US20130058200A1
Автор: I-Bing Su, Yi-Long Hsiao
Принадлежит: Quanta Storage Inc

A method for calibrating a tilt of an actuator includes the following steps: focusing a light beam projected from an objective lens onto a data layer of an optical disc; utilizing a digital signal processor to output control voltages through an analog driving circuit for driving the actuator to tilt the objective lens, and accordingly recording corresponding displacement signals of the objective lens; fitting a tilt curve through the recorded control voltages and the displacement signals; utilizing the digital signal processor to output a zero control voltage, not through the analog driving circuit, for tilting the objective lens, and accordingly measuring a standard displacement signal; acquiring a bias voltage from the tilt curve according to the standard displacement signal; and calibrating the tilt of the actuator by offsetting a control voltage outputted from the digital signal processor according to the bias voltage for controlling the analog driving circuit.

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Номер записи: 40
07-03-2013 дата публикации

Trimethine cyanine and its use

Номер: US20130060046A1
Автор: Cheng-Fen Yang, Chin-Kang Sha, Ching-Jung Chang, Hsin-Jen Lee
Принадлежит: ORGCHEM TECHNOLOGIES Inc

The present invention relates to a trimethine cyanine represented by the formula (1): wherein all symbols are defined as in the specification.

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Номер записи: 41
21-03-2013 дата публикации

INFORMATION RECORDING MEDIUM AND METHOD FOR MANUFACTURING THE SAME

Номер: US20130071600A1
Автор: KOJIMA Rie, Kusada Hideo, Nishihara Takashi, TSUCHINO Akio, Yamada Noboru
Принадлежит:

An optical information recording medium including three or more information layers, wherein at least one information layer provided on the light incident side is an information layer which enables information to be overwritten and includes a recording film, a transmittance adjusting film of a dielectric containing Bi, Ti and O, and an isolation film in this order from a light incident side; and the isolation film is provided between and adjacent to the transmittance adjusting film and an intermediate separation layer which separate the information layer from another information layer on the side opposite to the light incident side; and the isolation film has an optical constant at a wavelength of 405 nm such that a refractive index is 1.8 or less and an extinction coefficient is 0.05 or less. This information recording medium prevents the repeated overwriting characteristics in a sever environment from being deteriorated. 1. An information recording medium comprising three or more information layers and being capable of recording and reproducing information by irradiation with light , which is characterized in that at least one information layer provided on the light incident side is an information layer capable of overwriting information and comprises at least a recording film , a transmittance adjusting film of a dielectric comprising Bi , Ti and O , and an isolation film in this order from the light incident side; the isolation film is provided between and adjacent to the transmittance adjusting film and an intermediate separation layer that separates the information layer from another information layer on the side opposite to the light incident side; and the isolation film has an optical constant at a wavelength of 405 nm such that a refractive index is 1.8 or less and an extinction coefficient is 0.05 or less.2. The information recording medium according to claim 1 , wherein the isolation film comprises an oxide of at least one element selected from Si and Al.3 ...

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Номер записи: 42
21-03-2013 дата публикации

INFORMATION RECORDING MEDIUM AND METHOD FOR PRODUCING SAME

Номер: US20130071653A1
Автор: KOJIMA Rie, Kusada Hideo, Nishihara Takashi, TSUCHINO Akio, Yamada Noboru
Принадлежит:

An information recording medium including three or more information layers, wherein: at least one information layer includes a recording layer and a nucleation layer; the recording layer contains a material that is represented by formula (1) [(GeTe)(InTe)]Sb(mol %) with x satisfying 0.8≦x<1.0 and y satisfying 95≦y<100; the nucleation layer contains a material that is represented by formula (2) (GeTe)(BiTe)(mol %) with z satisfying 10≦z≦71; and the nucleation layer is in contact with the recording layer. This information recording medium is capable of achieving sufficient signal amplitude even in cases where a small recording mark is formed, and is also capable of stably maintaining a small recording mark. 2. The information recording medium according to claim 1 , wherein an average crystal particle diameter of crystal particles constituting the recording layer is less than 100 nm.3. The information recording medium according to claim 1 , wherein at least one of the information layers provided on a light incident side comprises the recording layer and the nucleation layer.4. The information recording medium according to claim 1 , wherein all the information layers on a light incident side comprise the recording layer and the nucleation layer.5. The information recording medium according to claim 1 , wherein all the information layers comprise the recording layer and the nucleation layer.6. The information recording medium according to claim 1 , wherein the nucleation layer has a thickness of 0.1 nm or more and 2.0 nm or less.7. The information recording medium according to claim 1 , wherein the recording layer has a thickness of 3 nm or more and 10 nm or less.8. An information recording medium comprising three or more information layers and being capable of recording and reproducing information by light claim 1 , wherein at least one information layer comprises a recording layer;the recording layer comprises Ge, Te, In, Bi and Sb; andan average crystal particle ...

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Номер записи: 43
28-03-2013 дата публикации

Optical disc and recording and reproducing apparatus and method

Номер: US20130077459A1
Автор: Katsuya Sugawara, Kazuki Matsumoto, Keiichiro Yusu, Masahiro Kanamaru, Masatoshi Sakurai, Takehiro Hiramatsu, Yuuzo Kamiguchi
Принадлежит: Individual

In a recording and reproducing apparatus, an optical disc is rotated in a rotating direction and an optical system focuses a laser beam on the optical disc to form a beam spot on the optical disc. The optical system is provided with a scanner which deflects the laser beam along a radial direction of the optical disc in such a manner that the beam spot follows a first scan trajectory along a first direction crossing the rotating direction and a second scan trajectory along a second direction different from the first direction. A first data track with a sequence of recording pits along the first scan trajectory is formed and arranged on the optical disc.

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Номер записи: 44
04-04-2013 дата публикации

Optical elements, method of replicating optical elements, particularly on a wafer level, and optical devices

Номер: US20130083397A1
Автор: Alan Kathman, Brian Harden, Michael Feldman
Принадлежит: DigitalOptics Corp East

Integrated multiple optical elements may be formed by bonding substrates containing such optical elements together or by providing optical elements on either side of the wafer substrate. The wafer is subsequently diced to obtain the individual units themselves. The optical elements may be formed lithographically, directly, or using a lithographically generated master to emboss the elements. Alignment features facilitate the efficient production of such integrated multiple optical elements, as well as post creation processing thereof on the wafer level.

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Номер записи: 45
04-04-2013 дата публикации

Optical pickup, inclination angle detection method, optical information device and information processing device

Номер: US20130083645A1
Автор: Hidenori Wada, Keiichi Matsuzaki, Kousei Sano, Sadao Mizuno
Принадлежит: Panasonic Corp

An optical pickup, an inclination angle detection method, an optical information device, and an information processing device capable of reliably and accurately detecting a relative inclination angle between an end face of a solid immersion lens and a surface of an optical recording medium are provided. A convergence position modifying unit modifies convergence states of a first beam and a second beam according to layers of an optical recording medium, a first optical detector includes a first light receiving section which receives the converged first beam and a second light receiving section which receives the converged second beam, and the first optical detector detects a relative inclination angle between an end face of a solid immersion lens and a surface of the optical recording medium based on a difference in quantities of received light between the first light receiving section and the second light receiving section.

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Номер записи: 46
18-04-2013 дата публикации

Data protection system

Номер: US20130094340A1
Автор: Mark Ayres, Tod R. Earhart
Принадлежит: AKONIA HOLOGRAPHICS LLC

The present invention provides systems and methods for logically organizing data for storage and recovery on a data storage medium using a multi-level format. The present invention also provides systems and methods for protecting data stored on data storage medium so that the data may be recovered without errors.

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Номер записи: 47
25-04-2013 дата публикации

OPTICAL INFORMATION RECORDING MEDIUM AND OPTICAL INFORMATION RECORDING METHOD

Номер: US20130100791A1
Автор: KITAHARA Toshiyuki, MOCHIZUKI Hidehiro, SASAKI Toshio
Принадлежит: FUJIFILM Corporation

An optical information recording medium includes: a recording layer comprising a multi-photon absorption compound and a one-photon absorption compound; and a supporting member (base layer ) configured to support the recording layer . In this optical information recording medium, absorption of multiple photons by the multi-photon absorption compound and absorption of one photon by the one-photon absorption compound cause a void to be generated in the recording layer, whereby information is recordable by modulation based on a presence or absence of a void. 1. An optical information recording medium comprising:a recording layer comprising a multi-photon absorption compound and a one-photon absorption compound; anda supporting member configured to support the recording layer,wherein absorption of multiple photons by the multi-photon absorption compound and absorption of one photon by the one-photon absorption compound cause a void to be generated in the recording layer, whereby information is recordable by modulation based on a presence or absence of a void.2. The optical information recording medium according to claim 1 , wherein at least one of the multi-photon absorption compound and the one-photon absorption compound is a foamable material which generates a void when it absorbs light and temperature thereof increases.3. The optical information recording medium according to claim 1 , wherein in addition to the multi-photon absorption compound and the one-photon absorption compound claim 1 , the recording layer comprises a vaporizable material which generates a void when the multi-photon absorption compound and the one-photon absorption compound absorb light and temperature of the vaporizable material increases.4. The optical information recording medium according to claim 1 , wherein the recording layer comprises a polymer binder claim 1 , and wherein voids in the recording layer are erasable by heating.5. The optical information recording medium according to claim 1 ...

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Номер записи: 48
02-05-2013 дата публикации

OPTICAL DISC DEVICE

Номер: US20130107685A1
Автор: Ishii Tamotsu, Nemoto Kazuhiko, Ogawa Yusuke
Принадлежит: SONY CORPORATION

An optical disc device includes: a diffraction element receiving as input reflected light from an optical disc recording medium, including a first diffraction area formed in a position where light in the center portion of incident light flux is diffracted, a second diffraction area formed so as to be in contact with an outer edge of the first diffraction area, and a third diffraction area formed so as to be in contact with an outer edge of the second diffraction area; and a light receiving/signal generating unit which generates a focus error signal and a lens error signal based on light diffracted at the third diffraction area; with the light receiving/signal generating unit receiving light diffracted at the second diffraction area, and generating the focus error signal based on the received light signal thereof and a received light signal obtained by receiving light diffracted at the third diffraction area. 1. An optical disc device comprising: a first diffraction area formed in a position where light in the center portion of incident light flux is diffracted,', 'a second diffraction area formed so as to be in contact with an outer edge of the first diffraction area, and', 'a third diffraction area formed so as to be in contact with an outer edge of the second diffraction area; and, 'a diffraction element to which reflected light from an optical disc recording medium is input, including'}a light receiving/signal generating unit configured to perform generation of a focus error signal and generation of a lens error signal based on light diffracted at the third diffraction area;wherein the light receiving/signal generating unit receives light diffracted at the second diffraction area, and performs generation of the focus error signal based on the received light signal thereof and a received light signal obtained by receiving light diffracted at the third diffraction area.2. The optical disc device according to claim 1 , wherein the diffraction areas in the ...

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Номер записи: 49
16-05-2013 дата публикации

METHOD FOR RECORDING ON AND READING OUT FROM OPTICAL INFORMATION RECORDING MEDIUM

Номер: US20130121123A1
Автор: KITAHARA Toshiyuki, MOCHIZUKI Hidehiro, SASAKI Toshio
Принадлежит: FUJIFILM Corporation

Recording and reading method for optical information recording medium comprising: recording layer having thickness not less than 2λ/n, where λ is wavelength of recording beam and n is refractive index of the recording layer, and configured to undergo a change in the refractive index by irradiation with the recording beam; and adjacent layer adjacent to the recording layer at a side opposite to an incident side, comprises the steps of: recording a recording spot by irradiating with the recording beam, while shifting focal position by offset amount d, which satisfies ωd3ω, where ωis radius of the recording spot, from interface between recording layer and adjacent layer toward the incident side at a time of recording, whereby the refractive index of recording layer changes at a recording position to record recording spot; and reading out the information by irradiating with reading beam, while bringing it into focus on the interface. 1. A method for recording information in an optical information recording medium and thereafter reading out the information from the optical information recording medium , which medium comprises: a recording layer having a thickness equal to or greater than 2λ/n , where λ is a wavelength of a recording beam and n is a refractive index of the recording layer , and configured to undergo a change in the refractive index by irradiation with the recording beam; and an adjacent layer disposed adjacent to the recording layer at a side opposite to an incident side from which the recording beam enters the recording layer , the method comprising the steps of:{'sub': 0', '0', '0, 'img': [{'@id': 'CUSTOM-CHARACTER-00009', '@he': '3.56mm', '@wi': '0.68mm', '@file': 'US20130121123A1-20130516-P00001.TIF', '@alt': 'custom-character', '@img-content': 'character', '@img-format': 'tif'}, {'@id': 'CUSTOM-CHARACTER-00010', '@he': '3.56mm', '@wi': '0.68mm', '@file': 'US20130121123A1-20130516-P00001.TIF', '@alt': 'custom-character', '@img-content': 'character', ...

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Номер записи: 50
16-05-2013 дата публикации

Optical information recording medium and method for manufacturing same

Номер: US20130121127A1
Автор: Toshiyuki Kitahara
Принадлежит: Fujifilm Corp

An optical information recording medium 10 comprises: a plurality of recording layers 14 , each of which undergoes a change in a refractive index by irradiation with a recording beam; and at least one intermediate layer 15 provided between the plurality of recording layers 14 . The recording layer 14 and the intermediate layer 15 have different refractive indices, and, among interfaces between the plurality of recording layers 14 and the at least one intermediate layer 15 , a recording layer 14 and an intermediate layer 15 disposed adjacent to the recording layer 14 at an incident side from which the recording beam enters the recording layer 14 are merged with each other at an interface (near-side interface 19 ) therebetween, whereby a refractive index gradually changes at the interface.

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Номер записи: 51
16-05-2013 дата публикации

Optical disk drive

Номер: US20130125151A1
Автор: Hui-Chung Leu, In-Shuen Lee, Ming-Chun Tsao
Принадлежит: Lite On IT Corp

An optical disk drive including a case, a traverse, a guide rod, an optical pick-up head and at least a locking member is provided. The traverse is disposed in the case and includes at least a cantilever part and at least a locking hole. The cantilever part protrudes from a carrying surface of the traverse and is integrated with the traverse. The guide rod leans against a bearing end of the cantilever part. The optical pick-up head is slidably disposed on the guide rod. The locking member includes a leaning part and a locking part. The locking part is locked into the locking hole and the leaning part presses an upper side of an end of the guide rod for making the bearing end generate a bending displacement toward the carrying surface through the guide rod.

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Номер записи: 52
23-05-2013 дата публикации

Reverse saturable absorbtion sensitizers for optical data storage media and methods for use

Номер: US20130128713A1
Автор: Arunkumar Natarajan, Eugene Pauling Boden, Evgenia Mikhailovna Kim, Kwok Pong Chan, Patrick Joseph Mccloskey, Robert Edgar Colborn
Принадлежит: General Electric Co

The invention relates generally to optical data storage media, and more specifically, to holographic storage media. In one embodiment, an optical storage medium composition includes a polymer matrix. Disposed within the polymer matrix is a reactant capable of undergoing a modification that alters the refractive index of the composition upon receiving an energy transfer from an excited sensitizer. A non-linear sensitizer is also disposed within the polymer matrix, and the sensitizer includes a metal-substituted subphthalocyanine (M-sub-PC) reverse saturable absorber configured to become excited upon exposure to light beyond an intensity threshold at approximately 405 nm and configured to transfer energy to the reactant.

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Номер записи: 53
23-05-2013 дата публикации

Optical information recording medium and method for manufacturing same

Номер: US20130128715A1
Автор: Toshiyuki Kitahara
Принадлежит: Fujifilm Corp

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 15 A 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 15 B disposed adjacent to a recording layer 14 at an incident side from which the recording beam enters the recording layer. The first intermediate layer 15 A and the recording layer 14 have different refractive indices, whereas the second intermediate layer 15 B and the recording layer 14 have substantially the same refractive index. The first and the second intermediate layer 15 A, 15 B are merged with each other at an interface therebetween, whereby refractive index gradually changes at the interface.

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Номер записи: 54
30-05-2013 дата публикации

COMPOSITION COMPRISING VARIOUS PROTEORHODOPSINS AND/OR BACTERIORHODOPSINS AND USE THEREOF

Номер: US20130135979A1
Автор: Bott Richard R., II Donald E., JENSEN Rasmus B., Kelemen Bradley R., WARD, Whited Gregory M.
Принадлежит: DANISCO US INC.

The present invention provides a solid material comprising an immobilized mixture of two or more proteorhodopsins, two or more bacteriorhodopsins, or one or more bacteriorhodopsin and one or more proteorhodopsins. The proteorhodopsins are selected from the group consisting of all-trans-retinal-containing proteorhodopsins and retinal analog-containing proteorhodopsins; all of which have absorption spectra that do not overlap. The bacteriorhodopsins are selected from the group consisting of all-trans-retinal-containing bacteriorhodopsins and retinal analog-containing bacteriorhodopsins; all of which have absorption spectra that do not overlap. The present invention also provides an optical information carrier, such as an optical data storage material and a fraud-proof optical data carrier, comprising the above-described solid material and a substrate selected from the group consisting of glass, paper, metal, fabric material, and plastic material, wherein said solid material is deposited on said substrate. The present invention further provides security ink comprising one or more hydrophilic polymers and a mixture of various photochromic materials. 1. A solid material comprising an immobilized mixture of one or more bacteriorhodopsins and one or more proteorhodopsins.2. The solid material according to claim 1 , wherein said proteorhodopsins are all-trans-retinal-containing proteorhodopsins and said bacteriorhodopsins are all-trans-retinal-containing bacteriorhodopsins.3. The solid material according to claim 1 , wherein all of said bacteriorhodopsins and proteorhodopsins have different absorption spectra.4. The solid material according to claim 1 , wherein said proteorhodopsins are all-trans-retinal-containing proteorhodopsins or retinal analog-containing proteorhodopsins.5. The solid material according to claim 1 , wherein said solid material comprises one or more hydrophilic polymers that are capable of forming a homogeneous phase with said proteorhodopsins or said ...

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Номер записи: 55
30-05-2013 дата публикации

Optical information reproduction device, optical information reproduction method, and information recording medium

Номер: US20130135982A1
Автор: Teruhiro Shiono, Yoshiharu Kobayashi
Принадлежит: Panasonic Corp

An optical information reproduction device includes a light source ( 14 ) configured to emit reproduction light, a plasmon resonance element ( 9 ) including a resonance section ( 22 ) arranged adjacent to a recording region ( 4 ) of a recording layer ( 2 ), the resonance section ( 22 ) causing plasmon resonance between the recording region ( 4 ) and the resonance section ( 22 ), a photodetector ( 17 a ) configured to detect reflected light or transmitted light from the plasmon resonance element ( 9 ) on which the reproduction light is irradiated, and a reproduction unit ( 24 ) configured to determine, on the basis of a detection signal from the photodetector ( 17 a ), whether the recording region ( 4 ) is in a recorded state or an unrecorded state, and reproduce information recorded in the recording region ( 4 ).

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Номер записи: 56
06-06-2013 дата публикации

OPTICAL RECORDING MEDIA WITH SPECIFIC VISION LABEL LAYER

Номер: US20130142968A1
Автор: Huang Ying-Yen, HUNG Yung-Hui, LEE Cheng-Pi
Принадлежит: CMC MAGNETICS CORPORATION

An optical recording medium is equipped with a light transmitting layer to have visual effects. Patterns with different visual effects can be printed on the upper and low surfaces of the light transmitting layer. Alternatively, visual effects can be presented by directing light out of an upper light grating from a low printing layer. The optical recording medium can not only record information but also present visual effects. 1. An optical recording medium with a specific vision label layer , comprising:a substrate having a surface on which at least one recording layer is disposed for storing optical information;a light transmitting layer formed on another surface of the substrate; anda low printing layer on which a pattern is printed disposed between the substrate and the light transmitting layer.2. The optical recording medium with a specific vision label layer according to claim 1 , wherein an upper printing layer is disposed on the light transmitting layer.3. The optical recording medium with a specific vision label layer according to claim 2 , wherein light reaching the low printing layer and the upper printing layer has different optical path lengths in the light transmitting layer to cause refraction and depth of filed so that a change in an optical image occurs in different view angels to the printing layers.4. The optical recording medium with a specific vision label layer according to claim 1 , wherein a light grating structure is on another surface of the light transmitting layer opposite the substrate.5. The optical recording medium with a specific vision label layer according to claim 4 , wherein light reaching the low printing layer and the light grating structure of the light transmitting layer causes diffraction so that a change in an optical image occurs in different view angels to the low printing layer.6. The optical recording medium with a specific vision label layer according to claim 4 , wherein grooves of the light grating structure is formed ...

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Номер записи: 57
20-06-2013 дата публикации

Optical disc device and optical disc recording method

Номер: US20130155824A1
Автор: Tomomi Okamoto
Принадлежит: Hitachi Consumer Electronics Co Ltd

On the occasion of providing a guard track and additionally recording data in an optical disc provided with a guide layer having a physical groove structure for carrying out tracking servo control and not having a land/groove structure in recording layers carrying out recording and playback, it has sometimes occurred that it was difficult to reposition a light spot. Given that there are a recorded area and an unrecorded area in a recording layer, recording with respect to the concerned recording layer is taken to be impossible to implement when the recording capacity of the unrecorded area is less than a prescribed value.

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Номер записи: 58
27-06-2013 дата публикации

LIQUID CRYSTAL ALIGNMENT FILM, PROCESS FOR ITS PRODUCTION, OPTICAL ELEMENT USING THE LIQUID CRYSTAL ALIGNMENT FILM, AND OPTICAL INFORMATION WRITING/READING DEVICE

Номер: US20130163399A1
Автор: Kumai Hiroshi, Ooi Yoshiharu, SHIONO Kazuhiko
Принадлежит: Asahi Glass Company, Limited

To provide a liquid crystal alignment film having a sufficient alignment-regulating power and high resistance against blue laser beam and having, at the same time, excellent adhesion, and an optical element using it. A liquid crystal alignment film obtainable by bonding, by chemisorption to a substrate, an alignment-regulating precursor which undergoes anisotropic decomposition by irradiation with polarized ultraviolet light, and irradiating the alignment-regulating precursor bonded to the substrate, with polarized ultraviolet light, to let it undergo anisotropic decomposition and exhibit an alignment-regulating power. 1. A liquid crystal alignment film obtainable by bonding , by chemisorption to a surface of a substrate , an alignment-regulating precursor which undergoes anisotropic decomposition by irradiation with polarized ultraviolet light , and irradiating the alignment-regulating precursor bonded to the substrate , with polarized ultraviolet light , to let it undergo anisotropic decomposition and exhibit an alignment-regulating power.5. The liquid crystal alignment film according to claim 1 , wherein the surface of the substrate is divided into a plurality of regions claim 1 , and in every region claim 1 , a predetermined alignment-regulating power is imparted.6. A process for producing a liquid crystal alignment film claim 1 , which comprises:a bonding step of contacting, to a substrate, a solution containing an alignment-regulating precursor which undergoes anisotropic decomposition by irradiation with polarized ultraviolet light, to bond the alignment-regulating precursor to the substrate by chemisorption,a cleaning step of cleaning the substrate with a solvent to remove the alignment-regulating precursor not bonded to the substrate, anda photo-alignment step of irradiating the alignment-regulating precursor bonded to the substrate, with polarized ultraviolet light, to let it undergo anisotropic decomposition and exhibit an alignment-regulating power.8. ...

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Номер записи: 59
04-07-2013 дата публикации

Objective lens element

Номер: US20130170042A1
Автор: Katsuhiko Hayashi, Michihiro Yamagata, Yasuhiro Tanaka, Yoshiaki Komma
Принадлежит: Panasonic Corp

An objective lens element having excellent compatibility with optical discs having different base material thicknesses is provided. The objective lens element has optically functional surfaces on an incident side and an exit side. At least either one of the optically functional surfaces on the incident side and the exit side includes a diffraction portion which satisfies at least either one of the following formulas (1) and (2): θ 1 ×θ 2 <0 (“×” represents multiplication)  (1), (sin θ 2 )/λ 2 =−(sin θ 1 )/λ 1   (2), where θ 1 is the diffraction angle of a light beam having a diffraction order providing the maximum diffraction efficiency at the wavelength λ 1 , and θ 2 is the diffraction angle of a light beam having a diffraction order providing the maximum diffraction efficiency at the wavelength λ 2 .

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Номер записи: 60
18-07-2013 дата публикации

Data Storage Device, Apparatus And Method For Using Same

Номер: US20130180101A1
Автор: Bert D. Cook, Donald C. Mann
Принадлежит: UltraCard Inc

A data storage device serving as a portable card, magnetically encodeable card, or a magnetic credit card is shown. The data storage device includes a substrate having at least one surface. A high density, magnetically coercive material layer is disposed on or is deposited on the substrate for storing magnetic signals. The magnetically coercive material may have an axis of magnetization that is oriented in a predetermined direction relative to the at least one surface of the substrate. A layer of non-magnetically material is disposed on the substrate for defining an exchange break layer. A relatively hard, abradeable protective coating is formed on the magnetic material layer and has a thickness between a maximum thickness that materially attenuates magnetic signals passing between the magnetic material layer and a transducer and a minimum thickness enabling the protective coating to be abraded by usage in an ambient natural atmosphere operating environment.

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Номер записи: 61
18-07-2013 дата публикации

SUPER-RESOLUTION OPTICAL RECORDING MEDIUM ON WHICH INFORMATION IS RECORDED USING TRAIN OF PREPITS, OPTICAL RECORDING MEDIUM REPRODUCTION DEVICE, AND CONTROL METHOD

Номер: US20130182549A1
Автор: HARADA Yasuhiro, Mori Go, Sakai Toshihiko, Tajima Hideharu, Takamori Nobuyuki, Yamada Hirohisa, Yamamoto Masaki
Принадлежит: SHARP KABUSHIKI KAISHA

A super-resolution optical recording medium includes: a medium information region on which medium identification information is recorded; a content region on which content information is recorded; and a blank region provided between the medium information region and the content region and in which at least two tracks are provided so as to connect a train of prepits in the medium information region and a train of prepits in the content region. No information is recorded on the blank region. Thus, a super-resolution optical recording medium is provided in which a region on which medium identification information is recorded and a region on which content information is recorded are different in track pitch and in which a reproduction error hardly occurs when reproduction shifts from the region on which the medium identification information is recorded to the region on which the content information is recorded. 115-. (canceled)16: An optical information recording medium comprising:a first region on which medium identification information which causes a medium type to be identified is recorded with use of guide grooves each of which has wobbles having a cycle longer than a resolution limit of an optical system of an optical recording medium reproduction device;a second region on which content information is to be recorded with use of trains of marks each of which includes a mark or a space equal to or shorter than the resolution limit of the optical system, the second region having guide grooves having a track pitch smaller than that of the first region, and the second region being provided outside an outer periphery of the first region; anda blank region provided between the first region and the second region,the blank region having a first guide groove closest to the first region and a second guide groove closest to the second region,a track pitch between the first guide groove and an adjacent guide groove in a region outside the blank region being identical to the ...

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Номер записи: 62
18-07-2013 дата публикации

OPTICAL PICKUP APPARATUS

Номер: US20130182550A1
Автор: Sato Minoru
Принадлежит: SANYO ELECTRIC CO., LTD.

An optical pickup apparatus includes: a laser light source to emit a laser beam; an object lens to irradiate an optical recording medium with the laser beam; a photodetector to receive a reflected light of the laser beam reflected by the optical recording medium; a semitransparent mirror interposed on an optical path between the laser light source and the object lens, to reflect the laser beam in a direction of the object lens and transmit it in a direction of the photodetector; and an astigmatism adding member interposed on an optical path between the semitransparent mirror and the photodetector, to add astigmatism to the reflected light, wherein the astigmatism adding member includes control film having first transmittance for polarization component in first direction contained in the reflected light is substantially equal to second transmittance for polarization component in second direction perpendicular to the first direction contained in the reflected light. 1. An optical pickup apparatus comprising:a laser light source configured to emit a laser beam;an object lens configured to irradiate an optical recording medium with the laser beam;a photodetector configured to receive a reflected light of the laser beam reflected by the optical recording medium;a semitransparent mirror interposed on an optical path between the laser light source and the object lens, the semitransparent mirror configured to reflect the laser beam in a direction of the object lens and transmit the reflected light in a direction of the photodetector; andan astigmatism adding member interposed on an optical path between the semitransparent mirror and the photodetector, the astigmatism adding member configured to add astigmatism to the reflected light, whereinthe astigmatism adding member includes a control film having a first transmittance for a polarization component in a first direction contained in the reflected light and a second transmittance for a polarization component in a second ...

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Номер записи: 63
25-07-2013 дата публикации

OPTICAL RECORDING MEDIUM

Номер: US20130189544A1
Автор: HAMAMOTO Takaki, KODAIRA Takuo, MATSUDA Isao
Принадлежит: TAIYO YUDEN CO., LTD.

An object of the present invention is to provide a recordable recording medium that suppresses increase in terminal noise and does not generate a BCA signal read error. The present invention provides a recordable optical recording medium comprising a substrate as well as at least a reflection layer, recording layer and light transmission layer provided on the substrate, wherein the recording layer of said optical recording medium contains (a) an azo metal complex dye and (b) another dye whose DSC decomposition heat value is 50 cal/g to 200 cal/g and λmax in TFP solution is 250 to 400 nm. 1. A recordable optical recording medium comprising a substrate as well as at least a reflection layer , recording layer , and light transmission layer provided on the substrate , wherein the recording layer of said optical recording medium contains (a) an azo metal complex dye and (b) another dye whose DSC decomposition heat value is 50 cal/g to 200 cal/g and λmax in TFP solution is 250 to 400 nm.2. An optical recording medium according to claim 1 , wherein the refractive index (n) and absorption coefficient (k) of dye (b) are 1.6 to 2.0 and 0.20 to 0.70 claim 1 , respectively claim 1 , for 405 nm wavelength.5. An optical recording medium according to claim 1 , wherein the content of dye (b) in the recording layer is 10 to 40 percent by weight relative to the weight of all organic dye in the recording layer.6. An optical recording medium according to claim 2 , wherein the content of dye (b) in the recording layer is 10 to 40 percent by weight relative to the weight of all organic dye in the recording layer.7. An optical recording medium according to claim 1 , wherein the light transmission layer has a one-layer configuration.8. An optical recording medium according to claim 2 , wherein the light transmission layer has a one-layer configuration.9. An optical recording medium according to claim 7 , wherein the elastic modulus of the light transmission layer at 25° C. is 40 MPa or ...

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Номер записи: 64
25-07-2013 дата публикации

OPTICAL RECORDING MEDIUM

Номер: US20130189545A1
Автор: KODAIRA Takuo, TAKEGUCHI Kazunobu
Принадлежит: TAIYO YUDEN CO., LTD.

An object of the present invention is to provide a recordable optical recording medium whose characteristics do not deteriorate when recording is conducted in a high-temperature environment. The present invention provides a recordable optical recording medium comprising a substrate as well as at least a reflection layer, recording layer and light transmission layer provided on the substrate, wherein the recording layer of said optical recording medium contains (a) an azo metal complex dye and (b) ionic organic compound containing a heteroaromatic quaternary ammonium ion. 1. A recordable optical recording medium comprising a substrate as well as at least a reflection layer , recording layer , and light transmission layer provided on the substrate , wherein a dye included in the recording layer of said optical recording medium contains (a) an azo metal complex dye and (b) an ionic organic compound containing a heteroaromatic quaternary ammonium ion.3. An optical recording medium according to claim 1 , wherein the heteroaromatic quaternary ammonium ion in the ionic organic compound (b) is a quaternary ammonium ion produced by quaternarizing nitrogen in a nitrogen-containing heteroaromatic ring compound using an alkyl group or aryl group.4. An optical recording medium according to claim 2 , wherein the heteroaromatic quaternary ammonium ion in the ionic organic compound (b) is a quaternary ammonium ion produced by quaternarizing nitrogen in a nitrogen-containing heteroaromatic ring compound using an alkyl group or aryl group.5. An optical recording medium according to claim 3 , wherein the heteroaromatic quaternary ammonium ion in the ionic organic compound (b) is a quaternary ammonium ion produced by quaternarizing nitrogen in a nitrogen-containing heteroaromatic ring compound using an alkyl group or aryl group.6. An optical recording medium according to claim 1 , wherein the content of the ionic organic compound (b) in the recording layer is 10 to 35 percent by weight ...

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Номер записи: 65
01-08-2013 дата публикации

OPTICAL RECORDING MEDIUM PRODUCTION DEVICE AND PRODUCTION METHOD

Номер: US20130196058A1
Автор: Harada Tatsuyuki, Tokunaga Yuuki, Toyota Takehiko
Принадлежит:

The recording medium production device, comprising: a substrate positioning pin vertically movable that performs positioning to a center-hole of substrate; a substrate holding portion that performs positioning of substrate using the substrate positioning pin to hold substrate; a cleaner having a gas ejection portion that ejects gas toward surface of substrate held by the substrate holding portion, and a gas suction portion that suctions gas; and a substrate positioning pin fixing portion that can press the substrate positioning pin downward, configured so as not to contact with an inner circumferential side surface of the center-hole of substrate; 1. An optical recording medium production device in which an information signal layer is provided on a substrate , comprising:a substrate positioning pin vertically movable that performs positioning to a center hole of the substrate;a substrate holding portion that performs the positioning of the substrate using the substrate positioning pin to hold the substrate;a cleaner having a gas ejection portion that ejects gas toward a surface of the substrate held by the substrate holding portion, and a gas suction portion that suctions the gas; anda substrate positioning pin fixing portion that can press the substrate positioning pin downward, and is configured so as not to come into contact with an inner circumferential side surface of the center hole of the substrate;wherein the substrate positioning pin fixing portion descends inside the center hole of the substrate held by the substrate holding portion so as to form a gap in the vicinity of the inner circumferential side surface of the center hole of the substrate, and presses and fixes the substrate positioning pin, and in the state, the cleaner performs the ejection and suction of the gas.2. The production device according to claim 1 , wherein the substrate positioning pin fixing portion has a columnar shape claim 1 , and a diameter of a circular cross section thereof is ...

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Номер записи: 66
15-08-2013 дата публикации

OPTICAL DISC AND REMOTE CONTROL DEVICE

Номер: US20130210355A1
Автор: Mizuno Osamu, Mushika Yoshihiro, Ogawa Koichi, Oshima Mitsuaki
Принадлежит: Panasonic Corporation

The objective of the present invention is to provide an optical disc which solves the problem that search for data recorded on an exchange-type medium such as an optical disc and the like and which allows search for data recorded in an optical disc to be performed with a simple operation. A transmitting/receiving antenna is provided in an inner peripheral portion of an optical disc. An IC module connected with transmission/reception IC including ID information is formed and embedded into a substrate the optical disc. Thus, an optical disc incorporating an IC module which can be produced on a mass-production basis can be achieved.

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Номер записи: 67
22-08-2013 дата публикации

Method for the thermal photoswitching of spin-transition materials, and uses thereof

Номер: US20130214179A1
Автор: Eric Freysz, Jean-Francois Letard
Принадлежит: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS

A method is provided for the thermal photoswitching of spin-transition compounds from the low-spin state to the high-spin state, including at least one step of exposing the material to a non-polarised laser beam which is at room temperature, and the wavelength of which is in the infrared range and the power of which is 1 mW.cm −2 to 1 W.cm −2 . The method may be used for the temporary or permanent marking of materials including particles of at least one spin-transition compound including an iron(II) and triazole ligand compound.

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Номер записи: 68
22-08-2013 дата публикации

STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

Номер: US20130215729A1
Автор: Ando Hideo, Morito Seiji, Ootera Yasuaki, Takazawa Koji, Umezawa Kazuyo
Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to one embodiment, a write-once type information storage medium using a recording material which has a low to high characteristic that a light reflectivity in a recording mark increases with respect to a non-recording area and which has a recording characteristic in accordance with a principle of recording without substrate deformation, wherein the recording material includes at least an organic metal complex, and wherein the organic metal complex includes a center metal. 1. (canceled)3. A reproducing method for the information storage medium according to claim 2 , the method comprising:irradiating the information storage medium with light; andreproducing information from the information storage medium.4. A reproducing apparatus for the information storage medium according to claim 2 , the apparatus comprising:an optical head configured to irradiate the information storage medium with light; anda reproducing module configured to reproduce information from the information storage medium.5. A recording method for the information storage medium according to claim 2 , the method comprising:irradiating the information storage medium with light; andrecording information on the information storage medium.6. A recording apparatus for the information storage medium according to claim 2 , the apparatus comprising:a recording module configured to irradiate the information storage medium with light and to record information on the information storage medium. The present divisional application claims the benefit under 35 U.S.C. §120 to application Ser. No. 13/102,646, filed on May 6, 2011, which is a continuation of U.S. application Ser. No. 12/354,411, filed on Jan. 15, 2009, which is a continuation of U.S. application Ser. No. 11/373,275, filed on Mar. 13, 2006, and claims the benefit of priority under 35 U.S.C. §119 from Japanese Patent Application No. 2005-072580, filed on Mar. 15, 2005. The entire contents of application Ser. Nos. 13/102,646, 12/354,411, and 11/ ...

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Номер записи: 69
29-08-2013 дата публикации

STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

Номер: US20130223200A1
Автор: Ando Hideo, Morishita Naoki, Morita Seiji, Ootera Yasuaki, Takazawa Koji, Umezawa Kazuyo
Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to one embodiment, a write-once type information storage medium comprises a recording layer which is formed by mixing a plurality of organic dye based recording materials whose molecular weights are different from each other, and wherein a mixture ratio of organic dye based recording materials whose molecular weight is small is larger than a mixture ratio of organic dye based recording materials whose molecular weight is large. 12-. (canceled)3. An information storage medium comprising:a data area configured to be able to store modulation data,whereinNon Return to Zero Inverting technique is utilized for the modulation data,the modulation data has a minimum length which relates to the Non Return to Zero Inverting technique,the modulation data is represented by a channel bit length T,the minimum length corresponds to 2T, andPRML system in which PR-class is defined as PR (1, 2, 2, 2, 1) is used for data reproduction.4. A reproducing method for the information storage medium according to claim 3 , the method comprising:irradiating the information storage medium with light; andreproducing the modulation data from the information storage medium.5. A reproducing apparatus for the information storage medium according to claim 3 , the apparatus comprising:an optical head configured to irradiate the information storage medium with light; anda reproducing module configured to reproduce the modulation data from the information storage medium.6. A recording method for the information storage medium according to claim 3 , the method comprising:irradiating the information storage medium with light; andrecording the modulation data on the information storage medium.7. A recording apparatus for the information storage medium according to claim 3 , the apparatus comprising:a recording module configured to irradiate the information storage medium with light and to record the modulation data on the information storage medium. This application is a division of application Ser ...

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Номер записи: 70
29-08-2013 дата публикации

Photopolymer formulation for producing holographic media having highly crosslinked matrix polymers

Номер: US20130224634A1
Автор: Dennis Hönel, Friedrich-Karl Bruder, Horst Berneth, Marc-Stephan Weiser, Thomas Fäcke, Thomas Rölle
Принадлежит: Bayer Intellectual Property GmbH

The invention relates to a photopolymer formulation comprising a polyol component, a polyisocyanate component, a writing monomer, and a photoinitiator, containing a coinitiator and a dye having the formula F An, where F stands for a cationic dye and An″ stands for an anion, wherein the dye having the formula F An comprises a water absorption of =5%. The invention further relates to a holographic medium, in particular in the form of a film, containing a photopolymer formulation according to the invention, to the use of such a medium for recording holograms, and to a special dye that can be used in the photopolymer formulation according to the invention.

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Номер записи: 71
05-09-2013 дата публикации

OPTICAL INFORMATION RECORDING MEDIUM

Номер: US20130229901A1
Автор: MIKAMI Tatsuo, MOCHIZUKI Hidehiro
Принадлежит: FUJIFILM Corporation

An optical information recording medium comprises a plurality of recording layers and intermediate layers each provided between the recording layers . Each of the recording layers 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 ) is formed between a recording layer and an intermediate layer that is adjacent to the recording layer on one side of the recording layer in a thickness direction of the recording layer , and a second interface (far-side interface ) is formed between the recording layer and an intermediate layer that is adjacent to the recording layer on the other side of the recording layer in the thickness direction of the recording layer . When the dye is irradiated with a recording beam and generates heat by absorption of the recording beam, the polymer binder undergoes a change in shape by the generated heat, so that at least one of the first interface and the second interface undergoes a change in shape and sticks out toward the intermediate layer to form a protrusion, whereby information is recorded in the optical information recording medium 1. An optical information recording medium comprising:a plurality of recording layers; andintermediate layers each provided between the recording layers,wherein each of the recording layers 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,wherein a first interface is formed between a recording layer and an intermediate layer that is adjacent to the recording layer on one side of the recording layer in a thickness direction of the recording layer, and a second interface is formed between the recording layer and an intermediate layer that is adjacent to the recording layer on the other side of the recording layer in the thickness direction of the recording layer, andwherein when the dye is ...

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Номер записи: 72
05-09-2013 дата публикации

Objective Lens for Optical Pickup Device, Optical Pickup Device, and Optical Information Recording/Reproducing Device

Номер: US20130229902A1
Автор: NAKAMURA Kentarou, TANAKA Hideki, Tateyama Kiyono
Принадлежит:

An optical pickup apparatus including an objective lens capable of enhancing temperature characteristics and wavelength characteristics, and which enables compatibility for three types of optical discs of BDs, DVDs, and CDs by using the objective lens in common, an optical information recording and reproducing apparatus, and an objective lens suitable for it. In a first optical path difference providing structure in which at least a first basic structure and a second basic structure are superimposed on each other, an amount of a level difference in an optical axis direction can be reduced, whereby it becomes possible to suppress the lowering of a diffraction efficiency when wavelength changes. Further, in the first basic structure and the second basic structure deterioration of the spherical aberration due to the change of the refractive index of the objective lens can be corrected by utilizing a phenomenon that the wavelength of the light source rises similarly due to a rise in the environmental temperature. 11122331212323. An objective lens for use in an optical pickup apparatus which comprises a first light source for emitting a first light flux having a first wavelength λ (390 nm≦λ≦415 nm) , a second light source for emitting a second light flux having a second wavelength λ (630 nm≦λ≦670 nm) , and a third light source for emitting a third light flux having a third wavelength λ (760 nm≦λ≦820 nm) , and is configured to record and/or reproduce information for a BD including a protective substrate with a thickness t by using the first light flux , to record and/or reproduce information for a DVD including a protective substrate with a thickness t (t Подробнее

Номер записи: 73
19-09-2013 дата публикации

OPTICAL PICKUP APPARATUS

Номер: US20130242715A1
Автор: IMAIZUMI Yasukazu
Принадлежит: SANYO ELECTRIC CO., LTD.

An optical pickup apparatus includes: first and second laser diodes to generate first and second laser beams, respectively; a first holder, made of metal, to incorporate the first laser diode; a second holder, made of metal, to incorporate the second laser diode; an objective lens; optical elements to guide the first and the second laser beam to the objective lens; a housing made of synthetic resin to house the first and the second holders, the objective lens, and the optical elements such that the first and the second holders are adjacent to each other; and a first heat-transfer gel filled in a first space between the first and the second holders, so as to transfer heat generated in the first laser diode from the first holder to the second holder as well as transfer the heat generated in the second laser diode from the second holder to the first holder. 1. An optical pickup apparatus comprising:a first laser diode configured to generate a first laser beam having a first wavelength;a first holder made of metal configured to incorporate the first laser diode;a second laser diode configured to generate a second laser beam, having a second wavelength different from the first wavelength, in a manner complementary to the first laser beam;a second holder made of metal configured to incorporate the second laser diode;an objective lens configured to condense the first laser beam onto a signal recording layer of a first optical disc as well as condense the second laser beam onto a signal recording layer of a second optical disc of a standard different from a standard of the first optical disc;optical elements configured to guide the first laser beam and the second laser beam to the objective lens;a housing made of synthetic resin configured to house the first holder, the second holder, the objective lens, and the optical elements such that the first holder and the second holder are adjacent to each other; anda first heat-transfer gel filled in a first space between the first ...

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Номер записи: 74
26-09-2013 дата публикации

MULTILAYER OPTICAL RECORDING MEDIUM, DRIVE DEVICE, REPRODUCING AND RECORDING APPARATUS, AND INSPECTION METHOD FOR MULTILAYER OPTICAL RECORDING MEDIUM

Номер: US20130250743A1
Автор: SAITO Masahiro
Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to one embodiment, a multilayer optical recording medium including a substrate, a guide layer group that is provided on the substrate and has guide layers in which positional information in a radial direction is recorded, and a recording layer group that is provided on the substrate and has recording layers in which information can be recorded. In the recording layer group, positional information of the recording layers associated with the positional information recorded in the guide layers and control information of the optical device where reflected light volumes of the laser beams on the guide layers and the recording layers become maximum at the positions in the radial direction are recorded at the positions in the radial direction of the recording layers. 1. A multilayer optical recording medium comprising:a substrate;a guide layer group which is provided on the substrate, and has guide layers in which positional information in a radial direction is recorded and which reflect a laser beam emitted from an optical device; anda recording layer group which is provided on the substrate, has recording layers which are configured to record information therein and which reflect a laser beam emitted from the optical device, and has positional information of the recording layers associated with the positional information recorded in the guide layers and control information of the optical device that maximizes reflected light volumes of the laser beams on the guide layers and the recording layers at positions in the radial direction which are recorded at positions on the recording layers in the radial direction.2. The multilayer optical recording medium according to claim 1 ,wherein the substrate comprises a clamp portion that is rotatably supported by a spindle device which rotates the substrate at the center thereof, andone of the positional information and the control information recorded in the recording layers is recorded at a position of the recording ...

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Номер записи: 75
03-10-2013 дата публикации

OPTICAL RECORDING MEDIUM HAVING AUXILIARY INFORMATION AND REFERENCE CLOCK

Номер: US20130258833A1
Автор: Kondo Tetsuya, Oishi Kenji
Принадлежит:

An information recording medium is composed of a substrate having a microscopic pattern constituted by a continuous substrate of grooves formed with a groove portion and a land portion alternately, a recording layer, and a light transmitting layer. The microscopic pattern is formed with satisfying a relation of P≦λ/NA, wherein P is a pitch of the land portion or the groove portion, λ is a wavelength of reproducing light, and NA is a numerical aperture of an objective lens. The land portion is formed with wobbling so as to be parallel with each other for both sidewalls of the land portion. Auxiliary information and a reference clock are recorded alternately. Information is recorded in the recording layer corresponding to a land portion by either one change of reflectivity difference and refractive index difference in the recording layer. 1. An information recording medium comprising:a substrate having a first microscopic pattern corresponding to a recording and reproducing area and a second microscopic pattern corresponding to a read-only area,each microscopic pattern including a continuous substrate of grooves formed with a groove portion and a land portion alternately;a recording layer formed on the microscopic pattern for recording information; anda light transmitting layer formed on the recording layer,wherein the land portion corresponding to the recording and reproducing area is formed with wobbling so as to be parallel with each other for both sidewalls of the land portion, andwherein auxiliary information, based on data used supplementally when recording the information and a reference clock based on a clock used for controlling a recording speed when recording the information, are recorded alternately and continuously in the recording and reproducing area, andwherein the auxiliary information is recorded by a frequency-shift keying modulation wave having two different frequencies, andwherein the reference clock is composed of a single frequency, andfurther ...

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Номер записи: 76
14-11-2013 дата публикации

OPTICAL MEDIA HAVING GRAPHENE WEAR PROTECTION LAYERS

Номер: US20130302553A1
Автор: Winarski Tyson York
Принадлежит:

An optical storage medium is disclosed that includes an optical disc having layers of graphene on one or both sides of the disc to provide wear protection against scratches and mechanical abrasion. Grahpene is a hard material that is 97.7% optically transparent. Thus, layers of graphene at or near the exterior sides of an optical disc provide wear protection to the optical media from mechanical abrasion and scratches while allowing laser light to pass through the graphene layers to read or write to the optical media. 1. An optical disc , comprising:a disc having an optical recording layer; anda wear protection layer comprising an annular sheet of graphene.2. The optical disc of claim 1 , wherein said annular graphene sheet is formed of a single contiguous sheet of graphene.3. The optical disc of claim 2 , wherein said annular graphene sheet has a uniform thickness claim 2 , thereby providing uniform transmission of light through said wear protection layer to facilitate uniform reading and writing of information to and from said optical recording layer.4. The optical disc of claim 1 , wherein said annular graphene sheet is formed of a single contiguous monolayer of carbon atoms.5. The optical disc of claim 1 , wherein a center of said annular graphene sheet is located at a center of said optical disc claim 1 , said annular graphene sheet has an inner radius that has a length that is less than or equal to an inner radius of said optical recording layer claim 1 , and said annular graphene sheet has an outer radius that has a length that is greater than or equal to an outer radius of said optical recording layer.6. The optical disc of claim 1 , wherein said wear protection layer further comprising a plurality of annular graphene sheets.7. The optical disc of claim 6 , wherein said plurality of annular graphene sheets are stacked vertically such that each of said plurality of annular graphene sheets share a common center point.8. The optical disc of claim 6 , wherein ...

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Номер записи: 77
28-11-2013 дата публикации

OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS AND OBJECTIVE OPTICAL SYSTEM FOR THE SAME

Номер: US20130315047A1
Автор: KOREEDA Daisuke, TAKEUCHI Shuichi
Принадлежит: HOYA CORPORATION

An objective optical system for information recording/reproducing, at least one of optical surfaces of the objective optical system comprising a diffraction surface including a first region contributing to converging first, second and third beams and including a diffraction structure formed such that use diffraction orders for the first, second and third beams are 1st-orders and a condition 0.03<(λB−λ1)/λ1<0.40 is satisfied; a second region contributing to converging only the first and second beams and including a diffraction structure formed such that the use diffraction orders are 1st-orders and a condition: −0.35<(λB−λB)/λ1<0.35 is satisfied; and a third region contributing to converging only the first beam and including a diffraction structure formed such that the use diffraction order for the first beam is an odd order and a condition: −0.23 Подробнее

Номер записи: 78
12-12-2013 дата публикации

OPTICAL READ/WRITE APPARATUS

Номер: US20130329539A1
Автор: KAYAMA Hiroshi, Momoo Kazuo
Принадлежит: Panasonic Corporation

An optical read/write apparatus as an embodiment of the present invention includes: a light-splitting element configured to split a light beam emitted from a light source into multiple light beams including a write beam and a read beam; an optical system configured to converge the write and read beams onto the same track on an optical storage medium; a photodetector including a light receiving element configured to detect the read beam reflected from the optical storage medium and output an electrical signal; and a divider configured to generate a read signal by dividing the signal detected by the light receiving element by a signal that represents a write modulated component and that is obtained by detecting a part of the light beam emitted from the light source. 1. An optical read/write apparatus with the ability to write data on a track on an optical storage medium and read the data that has been written on the track in parallel , the apparatus comprising:a light source;an optical modulator configured to modulate the emission power of the light source according to the data to be written;a light-splitting element configured to split a light beam emitted from the light source into multiple light beams including a write beam and a read beam;an optical system configured to converge the write and read beams onto the same track on the optical storage medium so that while a write operation is being performed, the same location on the optical storage medium is scanned with the write beam before being scanned with the read beam;a photodetector including a light receiving element configured to detect the read beam reflected from the optical storage medium and output an electrical signal; anda divider configured to generate a read signal by dividing the signal detected by the light receiving element by a signal that represents a write modulated component of the light beam and that is obtained by detecting a part of the light beam emitted from the light source.2. The optical ...

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Номер записи: 79
19-12-2013 дата публикации

Holographic optical pickup device, optical information recording and reproducing device, and method of reproducing optical information

Номер: US20130336099A1
Автор: Kazuyoshi Yamazaki, Ken-Ichi Shimada
Принадлежит: Hitachi Media Electronics Co Ltd

A holographic optical pickup device includes an optical axis split element for splitting a reference beam into two light beams in different propagation directions having polarized states substantially orthogonal to each other, angular variable elements for changing incident angle of the reference beam for irradiating an optical information recording medium, an image sensor for detecting a diffracted beam generated from a recorded region upon irradiation of the optical information recording medium with the reference beam to form a reproduction signal, and photodetectors for detecting the diffracted beam generated from the recorded region upon irradiation of the optical information recording medium with the reference beam. An angular error signal is generated for controlling the angular variable element using signals detected by the photodetectors.

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Номер записи: 80
19-12-2013 дата публикации

Copy protection method for optical storage device

Номер: US20130336102A1
Автор: Ko Cheng Fang
Принадлежит: Individual

A copy protection method includes the steps of providing an optical storage device having a substrate layer and a data structure layer coated on the substrate layer and containing a set of raw data codes; forming on the data structure layer at least one polarizing layer capable of causing a change in a light beam; and forming on the polarizing layer a scratch protection layer. The polarizing layer is located between the data structure layer and an optical reading device to influence a light beam irradiated thereon by the optical reading device, so that the set of raw data codes being optically accessed is conditionally converted into a different set of physical data codes. By providing the polarizing layer on the optical storage device to change the data codes that can be obtained by the optical reading device, it is able to stop illegal copying of the optical storage device.

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Номер записи: 81
19-12-2013 дата публикации

Recordable optical recording medium

Номер: US20130337270A1
Автор: Eiji Yamada, Isao Matsuda, Takuo Kodaira
Принадлежит: TAIYO YUDEN CO LTD

A recordable optical recording medium is provided enabling reliably preventing the deterioration of the recording characteristics, even when stored for a long period of time in an environment of high temperature and humidity. A recordable optical recording medium includes a substrate, and on the substrate, a reflective layer, a recording layer, a protective layer, a light transmission layer in a single layer structure having optical transparency, and a hard coat layer. The recording layer is formed by addition of an additive which functions as reducing agent to an azo metal complex dye having a triazole structure.

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Номер записи: 82
26-12-2013 дата публикации

Optical information recording/reproducing apparatus and method

Номер: US20130343171A1
Автор: Yusuke Nakamura
Принадлежит: Hitachi Consumer Electronics Co Ltd

There is disclosed an optical information recording/reproducing apparatus for optically recording and/or reproducing information in and from an optical recording medium. The apparatus has an oscillator light generator for generating oscillator light that is made to overlap and interfere with reproduced light from the optical recording medium, an oscillator light modulator for producing a given phase difference between the oscillator light and the reproduced light, a light detector for detecting interference light in which the oscillator light and the reproduced light overlap each other, a wavefront deviation detector for detecting an amount of wavefront deviation between the oscillator light and the reproduced light from an output from the light detector, and a compensation amount calculation unit for calculating a wavefront compensation amount from the amount of wavefront deviation. The phase difference produced by the oscillator light modulator is controlled based on the wavefront compensation amount.

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Номер записи: 83
26-12-2013 дата публикации

RECORDABLE OPTICAL RECORDING MEDIUM

Номер: US20130344350A1
Автор: KODAIRA Takuo
Принадлежит:

A low-cost recordable optical recording medium is provided having a single-layered light transmission layer, and a recording layer containing an organic dye, the recordable optical recording medium showing a little asymmetry in the reproduction signal, and being capable of recording/reproducing data with light having a wavelength of 300 nm to 500 nm. A recordable optical recording medium including a substrate on which a reflective layer, a recording layer containing an organic dye, a protective layer, and a single-layered light transmission layer are laminated in the stated order, the recording layer being formed of the organic dye having a decomposition starting temperature of 240° C. or less. 1. A recordable optical recording medium , comprisinga substrate on which at least a reflective layer, a recording layer containing an organic dye, and a single-layered light transmission layer are laminated, characterized in thatthe organic dye has a decomposition starting temperature of 240° C. or less.4. The recordable optical recording medium according to claim 1 , characterized in thatthe metal ion to which the azo compound having a specific structure represented by the general formula (1) is coordinated is selected from the metal group consisting of nickel, cobalt, and copper.5. The recordable optical recording medium according to claim 1 , characterized in thatthe metal ion to which the azo compound having a specific structure represented by the general formula (2) is coordinated is selected from the metal group consisting of nickel, cobalt, and copper.8. The recordable optical recording medium according to claim 1 , characterized in thatthe single-layered light transmission layer is formed of photo-curable resin having a modulus of elasticity of 10 MPa or more at a temperature of 25° C.9. The recordable optical recording medium according to claim 8 , characterized in thatthe single-layered light transmission layer is formed of photo-curable resin having a modulus of ...

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Номер записи: 84
02-01-2014 дата публикации

OPTICAL READ/WRITE APPARATUS

Номер: US20140003211A1
Автор: HIROSE Ryoji, Miyashita Harumitsu
Принадлежит: Panasonic Corporation

An optical read/write apparatus according to an embodiment includes: an optical head unit () which focuses a write light beam and a read light beam onto an optical storage medium () and which generates a signal based on the light beam that has been reflected from the optical storage medium; and a control section () which controls the optical head unit () so that the optical head unit records a mark on the optical storage medium by irradiating the optical storage medium with the write light beam and reads the recorded mark on the optical storage medium with the read light beam. After having started to record the mark on the optical storage medium by irradiating the optical storage medium with the write light beam and before forming the recorded mark completely, the optical head unit () reads the recorded mark on the optical storage medium with the read light beam. 1. An optical read/write apparatus comprising:an optical head unit which focuses a write light beam and a read light beam onto an optical storage medium and which generates a signal based on the light beam that has been reflected from the optical storage medium; anda control section which controls the optical head unit so that the optical head unit records a mark on the optical storage medium by irradiating the optical storage medium with the write light beam and reads the recorded mark on the optical storage medium with the read light beam,wherein after having started to record the mark on the optical storage medium by irradiating the optical storage medium with the write light beam and before forming the recorded mark completely, the optical head unit reads the recorded mark on the optical storage medium with the read light beam.2. The optical read/write apparatus of claim 1 , wherein the optical head unit includesa first optical head which emits the write light beam; anda second optical head which emits the read light beam.3. The optical read/write apparatus of claim 2 , wherein the control section ...

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Номер записи: 85
02-01-2014 дата публикации

Optical information recording and reproducing method and device

Номер: US20140003221A1
Автор: Taku Hoshizawa, Yusuke Nakamura
Принадлежит: Hitachi Consumer Electronics Co Ltd

Disclosed is an optical information recording and reproducing device capable of recording an interference fringe pattern as a hologram in an optical information recording medium, the interference fringe pattern being formed by a signal beam superimposed with signal information and a reference beam, and also capable of reproducing the signal information from the optical information recording medium, the device having a light source unit to emit light, a light splitting unit to split the light into the reference beam and the signal beam, a spatial light modulation unit to superimpose the signal information on the signal light, and a light detection unit to detect an image reproduced by the reference beam, wherein information about defects on the spatial light modulation unit is recorded in the optical information recording medium.

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Номер записи: 86
09-01-2014 дата публикации

Information storage medium, reproducing method, and recording method

Номер: US20140010060A1
Автор: Hideo Ando, Koji Takazawa, Seiji Morita
Принадлежит: Toshiba Corp

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field.

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Номер записи: 87
09-01-2014 дата публикации

Information storage medium, reproducing method, and recording method

Номер: US20140010063A1
Автор: Hideo Ando, Koji Takazawa, Seiji Morita
Принадлежит: Toshiba Corp

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field.

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Номер записи: 88
16-01-2014 дата публикации

LENS DRIVING DEVICE AND OPTICAL DISC APPARATUS

Номер: US20140016449A1
Автор: HARADA Kazuya, NISHIDATE Tetsuo, NOGAMI Toyoshi, SASAOKA Hiromasa
Принадлежит:

A lens driving device includes a lens holder for holding a lens, a supporter portion for supporting the lens holder in a movable manner, a drive portion for driving the lens holder, and an elastic portion for supplying the lens holder with a force in a predetermined direction. The supporter portion includes a shaft engaging with a bearing of the lens holder, and the force in a predetermined direction includes a force in a direction perpendicular to the shaft and a force in a direction to rotate the lens holder about the shaft. 1. A lens driving device comprising:a lens holder for holding a lens;a supporter portion for supporting the lens holder in a movable manner;a drive portion for driving the lens holder; andan elastic portion for supplying the lens holder with a force in a predetermined direction, whereinthe supporter portion includes a shaft engaging with a bearing of the lens holder, andthe force in a predetermined direction includes a force in a direction perpendicular to the shaft and a force in a direction to rotate the lens holder about the shaft.2. The lens driving device according to claim 1 , wherein the supporter portion includes one of a groove rail and a convex rail engaging with a part of the lens holder.3. The lens driving device according to claim 1 , wherein the force in a predetermined direction further includes a force in a direction parallel to the shaft.4. The lens driving device according to claim 3 , wherein the drive portion includes a coil and a magnet for driving the lens holder by an electromagnetic force claim 3 , and one of the coil and the magnet is mounted on the lens holder.5. The lens driving device according to claim 4 , wherein the elastic portion has a neutral position within a movable range of the lens holder claim 4 , in which the force in the direction parallel to the shaft is not applied to the lens holder.6. The lens driving device according to claim 1 , further comprising:a movement detection portion capable of detecting ...

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Номер записи: 89
23-01-2014 дата публикации

OPTICAL INFORMATION RECORDING MEDIUM

Номер: US20140023816A1
Автор: KITAHARA Toshiyuki
Принадлежит: FUJIFILM Corporation

An optical information recording medium includes a plurality of recording layers and intermediate layers each provided between the recording layers The optical information recording medium is configured such that first and second intermediate layers A, B having different refractive indices are arranged alternately with one recording layer interposed therebetween, that ((n3−n1)/(n3+n1))≦0.001 is satisfied, where n1 represents a refractive index of the recording layer and n3 represents a refractive index of the second intermediate layer B, and that when a recording layer is irradiated with a recording beam RB and generates heat by absorption of the recording beam RB, an interface (reflection interface A) between the recording layer and the first intermediate layer A adjacent to this recording layer undergoes a change of shape to record information (recording spot M). 3. The optical information recording medium according to claim 1 , wherein the first intermediate layer and the second intermediate layer have the same thickness.5. The optical information recording medium according to claim 1 , wherein the recording layer includes polymer binder and dye dispersed in the polymer binder.6. The optical information recording medium according to claim 5 , wherein the dye contains a multi-photon absorption compound.7. The optical information recording medium according to claim 5 , wherein the recording layer has a thickness equal to or greater than 50 nm.8. The optical information recording medium according to claim 1 , wherein the recording layer claim 1 , and the first and second intermediate layers are formed by coextrusion. This application is a continuation application of International Application No. PCT/JP2011/073287 filed on Oct. 11, 2011, which claims priority to Japanese Patent Application No. 2011-068714 filed on Mar. 25, 2011, the disclosures of which are incorporated herein by reference in their entireties.The present invention relates to an optical information ...

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Номер записи: 90
23-01-2014 дата публикации

Sputtering Target of Sintered Ti-Nb Based Oxide, Thin Film of Ti-Nb Based Oxide, and Method of Producing The Thin Film

Номер: US20140023868A1
Автор: Takami Hideo, Yahagi Masataka
Принадлежит: JX NIPPON MINING & METALS CORPORATION

A sputtering target of sintered Ti—Nb based oxide is provided. The sputtering target consists of titanium (Ti), niobium (Nb), and remainder being oxygen and unavoidable impurities, and the atomic ratio of Ti and Nb is 0.39≦(Nb/(Ti+Nb))≦0.79. The sputtering target of sintered Ti—Nb based oxide has a high refractive index and a low extinction coefficient. Also provided is a thin film of Ti—Nb based oxide obtained by using the foregoing target, which enables high-rate deposition. The thin film has superior transmittance, is subject to minimal reduction and variation of reflectivity, and is useful as an interference or protective film of an optical information recording medium, or as a part of a constituent layer of an optical recording medium. The thin film can also be applied to a glass substrate; that is, it can be used as a heat reflecting or antireflection film, or an interference filter. 1. A Ti—Nb based oxide thin film consisting of titanium (Ti) , niobium (Nb) , and remainder of oxide and unavoidable impurities , said thin film having an atomic ratio of Ti and Nb of 0.39≦(Nb/(Ti+Nb))≦0.79 , a refractive index in a wavelength region of 400 to 410 nm exceeding 2.5 , and an extinction coefficient of 0.01 or less.2. A Ti—Nb based oxide thin film according to claim 1 , wherein the atomic ratio of Ti and Nb is 0.46≦(Nb/(Ti+Nb))≦0.79.3. A Ti—Nb based oxide thin film according to claim 1 , wherein the atomic ratio of Ti and Nb is 0.57≦(Nb/(Ti+Nb))≦0.75.4. A Ti—Nb based oxide thin film according to claim 3 , wherein the thin film has a refractive index variation claim 3 , which is obtained from a difference in refractive index before and after storing the thin film that was sputtered-deposited on a glass substrate for 200 hours in 80° C. and 80% environment claim 3 , of 0.012 or less.5. A Ti—Nb based oxide thin film according to claim 3 , wherein the thin film has a refractive index variation claim 3 , which is obtained from a difference in refractive index before and ...

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Номер записи: 91
30-01-2014 дата публикации

OPTICAL RECORDING MEDIUM

Номер: US20140030467A1
Автор: MIYAZAWA Fuyuki, Murai Wakaaki
Принадлежит:

An optical recording medium is provided having a recording layer that absorbs light with a wavelength of 350 nm to 500 nm, the optical recording medium having good recording playback properties even when the ambient temperature changes, and allowing playback distortion to be controlled even when stored in a high temperature environment. A write-once type optical recording medium including: a substrate; a reflective layer that reflects light with a wavelength of 350 nm to 500 nm on the substrate; a recording layer that absorbs light with a wavelength of 350 nm to 500 nm; and a light transmission layer with a single-layer construction that transmits light with a wavelength of 350 nm to 500 nm, the light transmission layer having a modulus of elasticity at 75° C. that ranges from 50 MPa to less than 170 MPa. 1. An optical recording medium , comprising a substrate on which at least a reflective layer that reflects light with a wavelength of 350 nm to 500 nm , a recording layer formed by an organic dye that absorbs light with a wavelength of 350 nm to 500 nm , and a single-layered light transmission layer that transmits light with a wavelength of 350 nm to 500 nm are laminated , characterized in thatelastic modulus of the light transmission layer is 50 MPa or more and less than 170 MPa at 75° C., and the recording layer is formed by an azo metal complex dye including divalent nickel and a nitrogen-containing aromatic heterocyclic ring having a triazol structure.2. The optical recording medium according to claim 1 , characterized in that the single-layered light transmission layer is formed by coating the photocurable resin to form a coated film claim 1 , irradiating a light and curing the coated film claim 1 , the photocurable resin having elastic modulus of 51 MPa or more and 154 MPa or less at 75° C. after curing.3. The optical recording medium according to claim 2 , characterized in that the photocurable resin used for forming the single-layered light transmission ...

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Номер записи: 92
30-01-2014 дата публикации

OPTICAL RECORDING MEDIUM, AND MANUFACTURING METHOD OF OPTICAL RECORDING MEDIUM

Номер: US20140030489A1
Автор: Miki Takeshi
Принадлежит:

There is provided an optical recording medium including a substrate, an information recording layer that is formed on the substrate, and has a recording film including a W oxide and an Fe oxide, and a light transmissive layer that is formed on the information recording layer. 1. An optical recording medium comprising:a substrate;an information recording layer that is formed on the substrate, and has a recording film including a W oxide and an Fe oxide; anda light transmissive layer that is formed on the information recording layer.2. The optical recording medium according to claim 1 , wherein the recording film includes at least one or more oxides of Al claim 1 , Si claim 1 , Ti claim 1 , Zn claim 1 , In claim 1 , Sn claim 1 , Zr claim 1 , Ga claim 1 , Mn claim 1 , Ni claim 1 , Cu claim 1 , Pd claim 1 , and Ag in addition to the W oxide and the Fe oxide.3. The optical recording medium according to claim 1 , wherein the information recording layer has a single film structure of the recording film.4. The optical recording medium according to claim 1 , wherein the information recording layer has a dual film structure including the recording film and a protective film.5. The optical recording medium according to claim 1 , wherein the information recording layer has a triple film structure including a protective film claim 1 , the recording film claim 1 , and another protective film.6. The optical recording medium according to claim 1 , wherein the information recording layer is formed in a land/groove shape.7. A manufacturing method of an optical recording medium that includes a substrate claim 1 , an information recording layer claim 1 , and a light transmissive layer claim 1 , the method comprising:molding the substrate;forming the information recording layer on the substrate; andforming the light transmissive layer on the information recording layer,wherein, in the step of forming the information recording layer, formation of a recording film that includes a W oxide ...

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Номер записи: 93
30-01-2014 дата публикации

RECORDABLE OPTICAL RECORDING MEDIUM HAVING RECORDING LAYER CONTAINING ORGANIC DYE

Номер: US20140030550A1
Автор: KODAIRA Takuo, MATSUDA Isao
Принадлежит:

A recordable optical recording medium is provided enabling the light transmission layer to be a single layer, the inhibition of peeling of the recording layer even when stored in high-temperature/high-moisture conditions, and the reduction of degradation of the recording/reproduction characteristics. A recordable optical recording medium provided with a substrate, and, on the substrate in the following order, a reflective layer, a recording layer, a protective layer, and a light transmission layer. The optical recording medium has the recording layer formed thereon using an organic dye obtained by adding a highly waterproof, low hydrophilic organic dye to a triazole-based azo metal complex dye. 4. The recordable optical recording medium according to claim 1 , characterized in that the low hydrophilic and highly waterproof organic dye added to the triazole-based azo metal complex dye represented by the general formula (1) has an optical density ratio of 60 wt % or more claim 1 , the ratio being between the optical density being at a maximum absorption wavelength (λmax) before a dye thin film is immersed into hot water of 75° C. and the optical density being at the maximum absorption wavelength (λmax) after the dye thin film is immersed into the hot water for 30 minutes.7. The recordable optical recording medium according to claim 1 , characterized in that an additive amount of the low hydrophilic and highly waterproof organic dye added to the triazole-based azo metal complex dye represented by the general formula (1) is 3 wt % to 25 wt % based on the total organic dye contained in the recording layer.8. The recordable optical recording medium according to claim 1 , characterized in that the light transmission layer is a single layer.9. The recordable optical recording medium according to claim 8 , characterized in that the single-layered light transmission layer has elastic modulus of 40 MPa or more and 10000 MPa or less at 25° C.10. The recordable optical recording ...

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Номер записи: 94
13-02-2014 дата публикации

Medium processing device and flexible cable

Номер: US20140041896A1
Автор: Kazunori Takahashi, Toshiro Shiomi
Принадлежит: Nidec Sankyo Corp

A medium processing device may include a head which reads or writes data to a recording medium; and a flexible cable which is connected with head. The flexible cable may be formed in a multilayer structure including a data signal layer formed with a data signal pattern and disconnection detecting signal layers which cover a front face and a rear face of the data signal layer and are formed with a disconnection detecting signal pattern. The flexible cable may also include a terminal connecting part formed with a through hole into which a signal terminal of the head is inserted and a terminal covering part turned around so as to cover the terminal connecting part and fixed to the terminal connecting part.

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Номер записи: 95
13-02-2014 дата публикации

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

Номер: US20140043953A1
Автор: Ando Hideo, Morita Seiji, Takazawa Koji
Принадлежит: KABUSHIKI KAISHA TOSHIBA

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}the data structure is configured to store a maximum transfer rate,the data structure is configured to store information specifying single layer or dual layer or another,the control area includes data ID,the data ID is configured to specify reflectivity,the data ID is configured to specify an area type corresponding to a lead-in area or another area,the lead-in area includes the control area, andthe data ID includes a layer number.3. A reproducing method for reproducing data from the non-transitory machine readable information storage medium according to claim 2 , the method comprising:irradiating the non-transitory machine readable information storage medium with light; andreproducing the data from the non-transitory machine ...

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Номер записи: 96
13-02-2014 дата публикации

OPTICAL RECORDING MEDIUM AND METHOD FOR MANUFACTURING OPTICAL RECORDING MEDIUM

Номер: US20140044940A1
Автор: Ikuta Tomoya, Maeda Fumisada, Miura Takahiro, Nakao Takashi, Saito Kimihiro, Sakakura Yoshiaki, Sumi Yojiro
Принадлежит: SONY CORPORATION

An optical recording medium includes a first transparent film layer, a second transparent film layer, and a recording material layer sandwiched between the first transparent film layer and the second transparent film layer. The recording material layer includes a hologram recording material. 1. An optical recording medium comprising:a first transparent film layer;a second transparent film layer; anda recording material layer sandwiched between the first transparent film layer and the second transparent film layer, the recording material layer including a hologram recording material.2. The optical recording medium according to claim 1 , wherein a thickness of the first transparent film layer is the same or substantially the same as a thickness of the second transparent film layer.3. The optical recording medium according to claim 1 , further comprising:a base plate having one of principal surfaces having the first transparent film layer, the second transparent film layer, and the recording material layer thereon.4. The optical recording medium according to claim 3 , wherein the first transparent film layer is bonded to the one of the principal surfaces of the base plate with an adhesion layer therebetween.5. The optical recording medium according to claim 1 , wherein the hologram recording material is photopolymer.6. The optical recording medium according to claim 1 , wherein each of the first transparent film layer and the second transparent film layer is a low refractive index transparent resin film having a resistance to the recording material layer and high adhesion to the recording material layer.7. The optical recording medium according to claim 6 , wherein the transparent resin film is an Arton film.8. A method for manufacturing an optical recording medium claim 6 , comprising:forming a first transparent film layer forming base material by bonding a first transparent film layer to one of principal surfaces of a first base material with a first adhesion layer ...

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Номер записи: 97
13-02-2014 дата публикации

DISK-SHAPED INFORMATION RECORDING MEDIUM, DISK CARTRIDGE, AND INFORMATION RECORDING/REPRODUCING APPARATUS

Номер: US20140047463A1
Автор: ISOMURA Hidemi, Kawasaki Yoshihiro, Shoji Mamoru, TABUCHI Shuji
Принадлежит: Panasonic Corporation

The disk-shaped information recording medium having an outer diameter and an inner diameter comprises a substrate having a predetermined thickness, a first side that is one side of the substrate, a second side that is the other side of the substrate, a cylindrical portion forming a through hole formed at a center of the substrate, and a thin portion formed so as to surround an outer diameter of the cylindrical portion. The thin portion is thinner than the predetermined thickness and includes a non-inclined surface and an inclined surface formed on an outer diameter side of the non-inclined surface. The inclined surface is inclined at a predetermined angle to the non-inclined surface and is larger than the non-inclined surface in the thin portion. 1. A disk-shaped information recording medium having an outer diameter and an inner diameter , the information recording medium comprising:a substrate having a predetermined thickness;a first side that is one side of the substrate;a second side that is the other side of the substrate;a cylindrical portion forming a through hole formed at a center of the substrate;a thin portion formed so as to surround an outer diameter of the cylindrical portion, the thin portion being thinner than the predetermined thickness;a non-inclined surface formed at the thin portion; andan inclined surface formed on an outer diameter side of the non-inclined surface at the thin portion, the inclined surface being inclined at a predetermined angle to the non-inclined surface and being larger than the non-inclined surface in the thin portion.2. The disk-shaped information recording medium according to claim 1 , further comprising a curvature portion formed between the non-inclined surface and the inclined surface.3. The disk-shaped information recording medium according to claim 1 , further comprising a curvature portion formed between the inclined surface and a surface of the substrate where the thin portion is not formed.4. The disk-shaped ...

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Номер записи: 98
20-02-2014 дата публикации

Optical disc and optical disc device

Номер: US20140050059A1
Автор: Hironori Nakahara, Masaharu Ogawa, Nobuo Takeshita
Принадлежит: Mitsubishi Electric Corp

In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc standards, every time the information layer being accessed changes, it has been necessary to read the type of the information layer and select a method of generating a tracking error signal adapted to the type of information layer, so access has taken time. In order to solve the above problem, in the optical multilayer disc according to the present invention, having information layers conforming to a plurality of different optical disc standards, in an area in one of the information layers, information about the other information layers is recorded. The time required to access the other information layers can be reduced by using this information to select a tracking error signal generating method.

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Номер записи: 99
20-02-2014 дата публикации

Optical disc and optical disc device

Номер: US20140050065A1
Автор: Hironori Nakahara, Masaharu Ogawa, Nobuo Takeshita
Принадлежит: Mitsubishi Electric Corp

In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc standards, every time the information layer being accessed changes, it has been necessary to read the type of the information layer and select a method of generating a tracking error signal adapted to the type of information layer, so access has taken time. In order to solve the above problem, in the optical multilayer disc according to the present invention, having information layers conforming to a plurality of different optical disc standards, in an area in one of the information layers, information about the other information layers is recorded. The time required to access the other information layers can be reduced by using this information to select a tracking error signal generating method.

Подробнее
Номер записи: 100