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1. RU02363996 - HIGH DENSITY RECORDING MEDIUM AND RECORDING AND/OR DISPLAY DEVICE FOR SAID RECORDING MEDIUM

Office
Russian Federation
Application Number 2005137533/28
Application Date 03.06.2004
Publication Number 02363996
Publication Date 10.08.2009
Grant Number
Grant Date 10.08.2009
Publication Kind C2
IPC
G11B 7/24
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor
24Record carriers characterised by shape, structure or physical properties, or by the selection of the material 
CPC
G11B 23/0035
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
23Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
0014record carriers not specifically of filamentary or web form
0021discs
0028Details
0035means incorporated in the disc, e.g. hub, to enable its guiding, loading or driving
G11B 7/121
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation ; by modifying optical properties or the physical structure; , reproducing using an optical beam at lower power ; by sensing optical properties; Record carriers therefor
12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
121Protecting the head, e.g. against dust or impact with the record carrier
Inventors КИМ Чин Ён (KR)
ПАРК Кюн Чхан (KR)
KIM Chin En (KR)
PARK Kjun Chkhan (KR)
Priority Data 10-2003-0035523 03.06.2003 KR
1020030040353 20.06.2003 KR
Title
(EN) HIGH DENSITY RECORDING MEDIUM AND RECORDING AND/OR DISPLAY DEVICE FOR SAID RECORDING MEDIUM
(RU) НОСИТЕЛЬ ЗАПИСИ ВЫСОКОЙ ПЛОТНОСТИ И УСТРОЙСТВО ЗАПИСИ И/ИЛИ ВОСПРОИЗВЕДЕНИЯ ДЛЯ НЕГО
Abstract
(EN) FIELD: information technology. SUBSTANCE: invention relates to high density recording medium, for example high density optical disc, as well as recording and/display devices for it. The recording medium has a clamping area, information region, which includes a recording layer, formed next to a surface on which light is incident, and a transitional zone between the clamping area and the information region. Between the top surface of the clamping area and the top surface of the information region, a step is formed on the surface opposite the surface on which light is incident. An inclination is formed in the transitional zone. EFFECT: prevention of damage to the optical disc or objective lens of the optical head when the objective lens collides when the disc, prevention of fatal errors during automatic operation, as well as cutting on material input in making the optical disc. 35 cl, 15 dwg
(RU) Изобретение относится к носителю записи высокой плотности, например оптическому диску высокой плотности, а также устройствам записи и/или воспроизведения для него. Носитель записи содержит зону посадки, область информации, включающую слой для записи, сформированный рядом с поверхностью, на которую падает свет, и переходную зону между зоной посадки и областью информации. Между верхней поверхностью зоны посадки и верхней поверхностью области информации при этом формируется ступенька на поверхности, противоположной поверхности, на которую падает свет. В переходной зоне сформирован наклон. Технический результат - предотвращение повреждения оптического диска или линзы объектива оптической головки в результате соударения линзы объектива с диском, предотвращение неисправимых ошибок при автоматической работе, а также сокращение расхода материалов, необходимых для изготовления оптического диска. 4 н. и 31 з.п. ф-лы, 15 ил.
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