摘要:
An object of the present invention is to provide an optical recording medium which exhibits high storage reliability in high-temperature/high-humidity conditions, stable performance at high temperatures, appropriate mechanical properties and high productivity and is capable of reproducing and recording at high speeds. It is an optical recording medium containing a lower protective layer, an optical recording layer, an upper protective layer and an optical reflective layer which contains 98% by weight or more of Ag that are formed on the substrate, the thickness of the optical recording layer is 8 nm to 14 nm and the thickness of the upper protective layer is 4 nm to 24 nm, the upper protective layer contains at least one of zinc oxide, indium oxide, tin oxide, niobium oxide, silicon nitride, aluminum nitride and SiOx (1.6≦x≦1.9) and less than 0.1% by weight of at least any one of sulfur and chlorine, and the upper protective layer is amorphous after recording or rewriting.
摘要翻译:本发明的目的是提供一种在高温/高湿条件下具有高储存可靠性,高温下性能稳定,机械性能好,生产率高,并且能够高速再现和记录的光记录介质 。 光记录层的厚度是含有下保护层,光记录层,上保护层和含有98重量%以上的Ag的光反射层的光记录介质, 为8nm〜14nm,上保护层的厚度为4nm〜24nm,上保护层含有氧化锌,氧化铟,氧化锡,氧化铌,氮化硅,氮化铝和SiO x( 1.6 <= x <= 1.9)和小于0.1重量%的硫和氯中的至少一种,并且上保护层在记录或重写之后是非晶的。
摘要:
An optical recording medium including a substrate having guide groove thereon; a first protective layer located overlying the substrate; a recording layer located overlying the first protective layer; a second protective layer located overlying the recording layer; a third protective layer of from 2 to 9 nm thick located overlying the second protective layer and comprising Si in an amount not less than 35 atomic percent; and a reflection layer including Ag in an amount not less than 95% by weight. An overcoat layer having a glass transition temperature of from 90° C. to 180° C. is preferably formed overlying the reflection layer. A method for manufacturing the optical recording medium is also provided.
摘要:
An optical information recording medium is provided. This medium at least stores information that indicates a maximum recording linear velocity Vh. The medium comprises a substrate having a concentric circular guide groove. This guide grove has land portions and groves portions. At least a phase change type recording layer is formed on the substrate. The recording layer has such a composition and thickness that a dislocation linear velocity V satisfies the relation V≧Vh×0.85.
摘要:
There is provided a method and a device for recording optical data able to improve recording power setting during recording by means of PWM with a small number of pulses. During the test recording, using a period of a recording channel clock Tw as the minimum unit, marks having different mark lengths of n1·Tw and n2·Tw (n1
摘要:
To provide a dual-layer recordable optical recording medium, including: a first information layer; intermediate layer disposed over the first information layer; and second information layer disposed over the intermediate layer, the first information layer, intermediate layer, and second information layer being sequentially deposited from a laser irradiation side, wherein the first information layer comprises, from the laser irradiation side, at least a thin film containing Bi as a main ingredient, dielectric layer, reflective layer and thermal diffusion layer, and the second information layer comprises, from the laser irradiation side, at least a thin film containing Bi as a main ingredient, dielectric layer and reflective layer, and wherein the ratio of the thickness of the dielectric layer of the second information layer (t2) to the thickness of the dielectric layer of the first information layer (t1), t2/t1, is in a range of 0.7 to 1.5 or 4.5 to 6.0.
摘要:
A recording method including: recording on a write-once-read-many optical medium capable of recording and reproducing with a blue laser by CAV, ZCLV, or PCAV, wherein a laser emission pattern including a recording pulse comprises two or more different levels of recording power, and a laser emission time standardized by the laser emission pattern and reference clock is fixed regardless of a recording linear velocity.
摘要:
An information recording method including irradiating an optical information recording medium containing a phase change recording layer on a substrate having a guide groove with continuous light of a laser beam having an erase power level Pe to determine a transition linear velocity Vo defined as a minimum linear velocity above which the following relationship is satisfied: Rr=Ra/Rb
摘要翻译:一种信息记录方法,包括:在具有引导槽的基板上照射含有相变记录层的光学信息记录介质,所述基板具有具有擦除功率电平Pe的激光束的连续光,以确定定义为最小线速度的转变线速度Vo 其中满足以下关系:Rr = Ra / Rb <1,其中Rr表示反射光强度比,Ra和Rb表示在具有连续光的光学信息记录介质的照射之后和之后测量的反射光强度 分别在光信息记录介质中记录信息之前。
摘要:
Provided is a recordable optical recording medium that comprises a substrate, a recording layer, and a reflective layer, wherein the recording layer and the reflective layer are formed on the substrate, the recording layer is formed of an inorganic material, and information is recorded on the recordable optical recording medium by use of an irreversible change at the recording layer caused by irradiating blue laser light.
摘要:
There is provided a method and a device for recording optical data able to improve recording power setting during recording by means of PWM with a small number of pulses. During the test recording, using a period of a recording channel clock Tw as the minimum unit, marks having different mark lengths of n1·Tw and n2·Tw (n1
摘要:
An information recording method including irradiating an optical information recording medium containing a phase change recording layer on a substrate having a guide groove with continuous light of a laser beam having an erase power level Pe to determine a transition linear velocity Vo defined as a minimum linear velocity above which the following relationship is satisfied: Rr=Ra/Rb
摘要翻译:一种信息记录方法,包括:在具有引导槽的基板上照射包含相变记录层的光学信息记录介质,所述基板具有具有擦除功率电平Pe的激光束的连续光,以确定定义为最小线速度的转变线速度Vo 其中满足以下关系:Rr = Ra / Rb <1,其中Rr表示反射光强度比,Ra和Rb表示在具有连续光的光学信息记录介质的照射之后和之后测量的反射光强度 分别在光信息记录介质中记录信息之前。