-
公开(公告)号：US07480928B2
公开(公告)日：2009-01-20
申请号：US11134496
申请日：2005-05-20
IPC分类号： G11B7/24
CPC分类号： G11B7/24056 , G11B7/2534 , G11B7/2542 , G11B7/256 , G11B7/2585 , G11B7/26 , Y10T428/21
摘要： An optical recording medium capable of suppressing warps arising during a long time use and a method of producing the same, which has the configuration of comprising a substrate 13, an optical recording layer 14 formed on the substrate 13 and a light transmitting protective film 17 formed on the optical recording layer 14, wherein the protective film 17 includes a polymer film 16 having a thermal shrinkage coefficient of 0.02% or less and an adhesive layer 15 for adhering the polymer film 16 to the optical recording layer 14. As the polymer film 16, those produced by a melt cast method, subjected to annealing processing in advance or having a residual solvent of 0.3% by weight or less in the film may be preferably used.
摘要翻译： 能够抑制长时间使用时产生的翘曲的光记录介质及其制造方法，其具有包括基板13，形成在基板13上的光记录层14和形成的透光保护膜17的结构 在光记录层14上，其中保护膜17包括热收缩率为0.02％以下的聚合物膜16和用于将聚合物膜16粘附到光学记录层14的粘合剂层15.作为聚合物膜16 可以优选使用通过熔融浇铸法预先进行退火处理或在膜中残留溶剂为0.3重量％以下的那些。
-
公开(公告)号：US20060007844A1
公开(公告)日：2006-01-12
申请号：US11225136
申请日：2005-09-13
IPC分类号： G11B7/00
CPC分类号： G11B7/24067 , G11B7/24056
摘要： An optical disc comprising a substrate and a recording layer and a light-transmitting layer, laid on a substrate one upon the other in the order mentioned. A light beam is applied to the recording layer through the light-transmitting layer, to record and/or reproduce data on the disc. The light-transmitting layer is composed of at least two material layers laid one on the other and having different refractive indices. The disc is designed to set the spherical aberration caused by an objective lens that focuses the light beam used to record and/or reproduce data, at a value close to a minimum.
摘要翻译： 一种光盘，包括基板和记录层以及透光层，按所述顺序一个接一个地放置在基板上。 通过透光层将光束施加到记录层，以在盘上记录和/或再现数据。 透光层由至少两层彼此叠置并具有不同折射率的材料层组成。 光盘被设计成设置由用于记录和/或再现数据的光束聚焦的物镜所引起的球面像差，接近于最小值。
-
公开(公告)号：US07295508B2
公开(公告)日：2007-11-13
申请号：US10491980
申请日：2003-08-05
IPC分类号： G11B7/24
CPC分类号： G11B7/24056 , G11B7/24038
摘要： The present invention provides an optical disc which is constituted by a substrate, a recording layer, and a protection layer and is irradiated with a laser beam from the protection layer side. The optical disc has the substrate whose diameter is greater than 50 mm, the recording layer provided on the substrate, and the protection layer which is layered on the recording layer and thinner than the substrate and on which a recording or reproducing laser beam is incident. The total thickness of the optical disc is 0.7 mm or more.
摘要翻译： 本发明提供一种由基板，记录层和保护层构成的光盘，并从保护层侧照射激光束。 光盘具有直径大于50mm的基板，设置在基板上的记录层以及分层在记录层上并且比基板更薄并且记录或再现激光束入射的保护层。 光盘的总厚度为0.7mm以上。
-
14.发明申请公开(公告)号：US20130142028A1
公开(公告)日：2013-06-06
申请号：US13817033
申请日：2011-08-11
IPC分类号： G11B7/007
CPC分类号： G11B7/00736 , G11B7/24085 , G11B7/261 , G11B7/263
摘要： The present disclosure relates to an optical recording medium and a manufacturing method for an optical recording medium capable of obtaining an appropriate reproduction signal, as a bar code-shaped recording region (BCA) on an optical recording medium.This recording region (BCA) is provided that includes high reflection rate regions and low reflection rate regions which appear alternately in the track line direction, and each of the high reflection rate regions and the low reflection rate regions is formed to be continuous in the track pitch direction, whereby a bar code-shaped reflection pattern is formed, and information is recorded with the reflection pattern. In the BCA, the low reflection rate region is formed with pit strings. The high reflection rate region and the low reflection rate region are formed to satisfy: S+M/2≦0.6H, where a signal level of a reproduction signal obtained from a reflection light in the high reflection rate region is denoted as “H”, a signal level of a reproduction signal obtained from a reflection light in the low reflection rate region is denoted as “S”, and a degree of modulation of the reproduction signal obtained from the reflection light in the low reflection rate region is denoted as “M”.
摘要翻译： 本发明涉及一种能够获得合适的再现信号的光学记录介质的光学记录介质和制造方法，作为光学记录介质上的条形码记录区域（BCA）。 提供该记录区域（BCA），其包括在轨迹线方向上交替出现的高反射率区域和低反射率区域，并且高反射率区域和低反射率区域中的每一个在轨道中形成为连续的 俯仰方向，由此形成条形码反射图案，并且用反射图案记录信息。 在BCA中，低反射率区域形成有凹坑串。 形成高反射率区域和低反射率区域，以满足：S + M 2 + 0.6H，其中从高反射率区域中的反射光获得的再现信号的信号电平被表示为“H” 将从低反射率区域的反射光获得的再现信号的信号电平表示为“S”，将从低反射率区域的反射光获得的再现信号的调制度表示为“ M“。
-
公开(公告)号：US06270611B1
公开(公告)日：2001-08-07
申请号：US08978570
申请日：1997-11-26
IPC分类号： B32B3112
CPC分类号： G11B7/26 , B29D17/005 , G11B7/24 , Y10T156/1041
摘要： A multi-layer recording medium including a light-transmitting substrate, a first information recording layer formed on the substrate, an intermediate layer at least part of which is formed of a photo-curable resin film, and which is formed on the first information recording layer, a second information recording layer formed on a surface of the intermediate layer opposite to the surface facing the first information signal layer, and a protective layer formed on the second information signal layer. A method for producing such multi-layer recording medium is also disclosed.
摘要翻译： 一种多层记录介质，包括透光基板，形成在基板上的第一信息记录层，其至少一部分由光固化树脂膜形成的中间层，并且形成在第一信息记录 层，形成在与面向第一信息信号层的表面相对的中间层的表面上的第二信息记录层，以及形成在第二信息信号层上的保护层。 还公开了一种用于制造这种多层记录介质的方法。
-
16.发明授权公开(公告)号：US06175548B1
公开(公告)日：2001-01-16
申请号：US09334135
申请日：1999-06-15
申请人： Toshiyuki Kashiwagi
发明人： Toshiyuki Kashiwagi
IPC分类号： G11B724
CPC分类号： G11B7/24085 , G11B7/007 , G11B7/00718 , G11B7/127 , G11B7/1374 , G11B7/13925 , G11B7/24 , G11B2007/13727
摘要： An optical recording medium in which a light transmission layer (12) is formed on an information recording surface (11A) having formed an information recording pit, a laser light with a wavelength (&lgr;) of 380 nm≦&lgr;≦450 nm is irradiated on the optical recording medium from the light transmission layer side through a lens system having a N.A. (numerical aperture) equal to or more than 0.76 to read the information. In the signal information area thereof, a thickness t of light transmission layer is set to be 3 &mgr;m to 182 &mgr;m, and its thickness irregularity &Dgr;t is set within ±5.26 &lgr;/&mgr;m(N.A.)4. Also, a track pitch (TP) on the information recording surface (11) is set to be 0.27 &mgr;m to 0.404 &mgr;m, the minimum pit length Pmin of the information recording pit is set to be 0.13 &mgr;m to 0.219 &mgr;m, a recording line density LD is set to be a pit string equal to or less than 0.146 &mgr;m/bit, and a depth D of information recording pit is set to be 31 nm to 75 nm, whereby the optical recording medium is provided as an optical disc having the memorizing capacity equal to or more than 8 GB and a ROM (Read Only Memory) in at least its part.
摘要翻译： 在形成信息记录凹坑的信息记录表面（11A）上形成有光传输层（12）的光记录介质，具有波长（lambd）为380nm <= lambd <= 450nm的激光是 通过具有等于或大于0.76的NA（数值孔径）的透镜系统从光透射层侧照射在光学记录介质上以读取信息。 在其信号信息区域中，透光层的厚度t设定为3μm至182μm，并且其厚度不均匀度DELTAt设定在±5.26lamb / mum（N.A.）4之内。 此外，信息记录表面（11）上的轨道间距（TP）设置为0.27μm至0.404μm，信息记录凹坑的最小凹坑长度Pmin设置为0.13μm至0.219μm，记录线密度 LD被设定为等于或小于0.146mum /位的凹坑串，并且信息记录凹坑的深度D被设置为31nm至75nm，由此光记录介质被提供为具有记忆的光盘 容量等于或大于8 GB，ROM（只读存储器）至少其部分。
-
17.发明授权Optical recording medium having disconnected lands and grooves forming control signal portion 有权具有断开的焊盘和形成控制信号部分的槽的光记录介质
公开(公告)号：US6136402A
公开(公告)日：2000-10-24
申请号：US143054
申请日：1998-08-28
IPC分类号： G11B7/24 , G11B7/00 , G11B7/0045 , G11B7/007 , G11B7/125 , G11B7/26 , G11B27/19 , G11B27/24 , G11B27/30 , B32B3/02
CPC分类号： G11B27/24 , G11B27/19 , G11B7/007 , G11B7/00718 , G11B7/00745 , G11B7/128 , G11B7/261 , G11B2220/2525 , G11B27/3027 , G11B7/24082
摘要： An optical recording medium having a disconnected land and/or a groove thereby forming a control signal portion. The control signal portion may have therein a clock signal. The disconnect is formed by wobbling a laser beam while applying the laser beam to a photoresist layer formed on an original glass disk to cut circumferential grooves therein. The beam is wobbled in the radial direction to form a disconnect in the circumferential groove and simultaneously therewith a mark to disconnect a land between grooves.
摘要翻译： 具有断开的焊盘和/或槽的光记录介质，从而形成控制信号部分。 控制信号部分可以在其中具有时钟信号。 在将激光束施加到形成在原始玻璃盘上的光致抗蚀剂层上以切割圆周凹槽的同时，通过摆动激光束来形成断开。 梁在径向方向上摆动以在周向槽中形成断开，同时具有用于断开槽之间的焊盘的标记。
-
公开(公告)号：US6111851A
公开(公告)日：2000-08-29
申请号：US605362
申请日：1996-02-22
申请人： Hiroshi Ohki , Toshiyuki Kashiwagi
发明人： Hiroshi Ohki , Toshiyuki Kashiwagi
摘要： An optical recording medium includes a first recording member having a first light-transmissive substrate and a first semi-light-transmissive information area disposed on a surface of the first light-transmissive substrate, and a second recording member having a second substrate and a second reflective information area disposed on a surface of the second substrate. The first recording member and the second recording member are joined to each other with the transparent layer interposed therebetween with the first and second information areas facing each other.
摘要翻译： 光记录介质包括具有第一透光性基板和设置在第一透光性基板的表面上的第一半透光性信息区域的第一记录部件和具有第二基板和第二基板的第二记录部件 反射信息区域设置在第二基板的表面上。 第一记录部件和第二记录部件彼此连接，透明层插入其间，第一信息区域和第二信息区域彼此相对。
-
19.发明授权
公开(公告)号：US5748582A
公开(公告)日：1998-05-05
申请号：US729800
申请日：1996-10-08
CPC分类号： G11B20/10037 , G11B20/10 , G11B20/10009 , G11B7/0901 , G11B7/0938 , G11B7/24085 , G11B7/24088 , G11B7/0903
摘要： Digital information is recorded with high density. Positions of a leading edge and a trailing edge of an information pit are shifted from a reference position indicated by a leading edge of a reference clock in a step-wise fashion in response to digital data to be recorded.
摘要翻译： 以高密度记录数字信息。 响应于要记录的数字数据，信息凹坑的前沿和后沿的位置从基准时钟的前沿指示的参考位置以逐步方式移位。
-
公开(公告)号：US5238786A
公开(公告)日：1993-08-24
申请号：US583204
申请日：1990-09-17
申请人： Toshiyuki Kashiwagi
发明人： Toshiyuki Kashiwagi
IPC分类号： G11B7/26
CPC分类号： G11B7/26
摘要： A mastering method for making a high recording density optical disk is disclosed, in which a substrate with a photosensitive material layer is selectively exposed to a focused laser light having a predetermined power representing information to be recorded. The laser power is such that the exposed width at the top surface of the photosensitive material layer is larger than the exposed width at the bottom surface of the photosensitive material layer. After the development of the layer, the remaining photosensitive material layer is used as an etching mask for the substrate to form pits in the substrate.
-
-
-
-
-
-
-
-
-
搜索结果
56 条记录 (耗时 0.029 秒)