摘要:
The present invention provides an optical recording medium that includes a recording layer composed mainly of an organic compound and can utilize blue-violet semiconductor laser light (390 to 420 nm in wavelength) as recording/reproducing laser light. The present invention also provides an optical recording/reproducing method using the optical recording medium. The optical recording medium 1 comprises at least a supporting substrate 2; a recording layer 3 on the supporting substrate 2, the recording layer 3 containing an organic compound as a major component; and a light-transmitting layer 5 on the recording layer 3, the light-transmitting layer 5 being capable of transmitting laser light with a wavelength of 390 to 420 nm for recording and reproducing information. The organic compound in the recording layer 3 includes a trimethine cyanine dye that has the minimum value nmin of its refractive index n (real part of the complex refractive index) within the range of 370 to 425 nm and has a refractive index n of 1.2 or lower with respect to the wavelength of the recording/reproducing laser light. The organic compound, when absorbing the laser light, melts or degrades to bring about a change in the refractive index, thereby effecting recording of the information.
摘要翻译:本发明提供一种光记录介质,其包括主要由有机化合物组成的记录层,并且可以利用蓝紫色半导体激光(波长为390至420nm)作为记录/再现激光。 本发明还提供一种使用光记录介质的光记录/再现方法。 光记录介质1至少包括支撑基板2; 支撑基板2上的记录层3,含有有机化合物作为主要成分的记录层3; 以及在记录层3上的透光层5,透光层5能够传输波长为390至420nm的激光以用于记录和再现信息。 记录层3中的有机化合物包括其折射率n(复合折射率的实部)的最小值n min min在370〜425nm的范围内的三甲基菁染料,以及 折射率n相对于记录/再现激光的波长为1.2或更低。 有机化合物在吸收激光时会熔化或降解以引起折射率的变化,从而进行信息的记录。
摘要:
It is an object of the present invention to provide a multilevel optical recording medium in which influence of variation in characteristics of a recording layer in a plane of the recording layer on reproduced data can be correctedThe multilevel optical recording medium according to the present invention includes at least a recording layer 12 and is constituted so that data can be recorded therein in a multilevel manner by controlling a state of the recording layer 12 among multiple stages and the multilevel optical recording medium according to the present invention is characterized in that a plurality of calibration signals are stored in the recording layer 12. According to the thus constituted multilevel optical recording medium, since an optical data recording and reproducing apparatus can detect and correct for the variation in characteristics of the recording layer 12 in the plane thereof, even in the case where variation in characteristics of the recording layer 12 in the plane thereof is present, data recorded in the multilevel optical recording medium in a multilevel manner can be read in a desired manner.
摘要:
A reproduction method for a multi-level optical recording medium according to the present invention rotates an optical recording medium, on which recording data has been recorded according to a multi-level recording method which sets several levels for light reflectivity of virtual recording cells, emits a reproduction laser beam towards the optical recording medium, and reproduces the recording data based on an electric signal generated in accordance with a received level of reflected light, the method setting the emission power of the reproduction laser beam in a range of 1.0 mW to 2.5 mW inclusive when the optical recording medium is rotated at a linear velocity in a range of 9 m/s to 25 m/s inclusive. By doing so, it is possible to improve the read accuracy for recording data while suppressing the reproduction deterioration of the optical recording medium to a level where deterioration effectively does not occur.
摘要:
It is an object of the present invention to provide a multilevel optical recording medium in which influence of variation in characteristics of a recording layer in a plane of the recording layer on reproduced data can be corrected. The multilevel optical recording medium according to the present invention includes at least a recording layer 12 and is constituted so that data can be recorded therein in a multilevel manner by controlling a state of the recording layer 12 among multiple stages and the multilevel optical recording medium according to the present invention is characterized in that a plurality of calibration signals are stored in the recording layer 12. According to the thus constituted multilevel optical recording medium, since an optical data recording and reproducing apparatus can detect and correct for the variation in characteristics of the recording layer 12 in the plane thereof, even in the case where variation in characteristics of the recording layer 12 in the plane thereof is present, data recorded in the multilevel optical recording medium in a multilevel manner can be read in a desired manner.
摘要:
An optical disc is includes a recording layer, a reflective layer, and a protective layer provided, in that order, on one surface of a light-transmissive substrate and a hard coating layer having a thickness in the range of 1 to 5 μm on the other surface of the substrate. The hard coating layer is formed by applying and curing a solution comprising a hard coating agent containing colloidal silica and a UV-curable acrylic resin and a solvent containing propylene glycol monomethyl ether acetate as a principal constituent. The hard coating layer contains 110 mg/cm3 or less of residual solvent.
摘要翻译:光盘包括依次设置在透光性基板的一个表面上的记录层,反射层和保护层,该保护层的厚度在1〜5μm的范围内 衬底的其他表面。 通过涂布和固化包含含有胶体二氧化硅和UV固化丙烯酸树脂的硬涂层剂和含有丙二醇单甲醚乙酸酯的溶剂作为主要成分的溶液来形成硬涂层。 硬涂层含有110mg / cm 3以下的残留溶剂。
摘要:
An optical disc is includes a recording layer, a reflective layer, and a protective layer provided, in that order, on one surface of a light-transmissive substrate and a hard coating layer having a thickness in the range of 1 to 5 μm on the other surface of the substrate. The hard coating layer is formed by applying and curing a solution comprising a hard coating agent containing colloidal silica and a UV-curable acrylic resin and a solvent containing propylene glycol monomethyl ether as a principal constituent. The hard coating layer contains 40 mg/cm3 or less of residual solvent.
摘要翻译:光盘包括依次设置在透光性基板的一个表面上的记录层,反射层和保护层,该保护层的厚度在1〜5μm的范围内 衬底的其他表面。 通过涂布固化包含胶体二氧化硅和UV固化型丙烯酸树脂的硬涂层剂和含有丙二醇单甲基醚的溶剂作为主要成分的溶液来形成硬涂层。 硬涂层含有40mg / cm 3以下的残留溶剂。
摘要:
An optical disc is includes a recording layer, a reflective layer, and a protective layer provided, in that order, on one surface of a light-transmissive substrate and a hard coating layer having a thickness in the range of 1 to 5 μm on the other surface of the substrate. The hard coating layer is formed by applying and curing a solution comprising a hard coating agent containing colloidal silica and a UV-curable acrylic resin and a solvent containing butyl acetate as a principal constituent. The hard coating layer contains 90 mg/cm3 or less of residual solvent.
摘要翻译:光盘包括依次设置在透光性基板的一个表面上的记录层,反射层和保护层,该保护层的厚度在1〜5μm的范围内 衬底的其他表面。 通过涂布和固化含有胶体二氧化硅和UV固化丙烯酸树脂的硬涂层剂和含有乙酸丁酯的溶剂作为主要成分的溶液来形成硬涂层。 硬涂层含有90mg / cm 3以下的残留溶剂。
摘要:
It is an object of the present invention to provide a dye material which can be employed in short-wavelength optical recording media, while being excellent in solubility to solvents. The dye material in accordance with a preferred embodiment of the present invention contains a cyanine compound and an azo compound. The cyanine compound contains at least a trimethinecyanine compound in which an aromatic structure including two nitrogen-containing heterocyclic rings is combined to a trimethine group. At least one of the nitrogen-containing heterocyclic rings includes a benzyl group which may have a substituent, while at least one of them includes an organic group having a carbon number of 2 to 30 substituted by a nitrogen atom. The azo compound contains at least a chelate compound of a compound containing an azo group and a metal.
摘要:
An optical recording medium includes a recording layer containing a cyanine dye and a quencher and a light transmittance reducing section for reducing the transmission of ultraviolet rays to the recording layer, and the light transmittance reducing section is composed of at least one of a substrate and a function layer. When the component ratio of the quencher to the total number of moles of the cyanine dye and the quencher is shown by A and the transmittance of ultraviolet rays of the light transmittance reducing section is shown by B, the component ratio A and the transmittance B are defined to satisfy the following mathematical formulas (1) and (2). With this arrangement, the optical recording medium can execute recording at a high linear speed while securing sufficient light stability. 0.3≧A≧−(B+0.075)/1.25 (1) 0.3≧B≧0.05 (2)
摘要:
The present invention provides an electronic component which is capable of effectively suppressing the characteristic deterioration of the passive element portion. An electronic component comprises a ceramic substrate, a passive element portion on the substrate, an insulator layer which is provided over the passive element portion and comprises a through-hole, a lead terminal which is fitted in the through-hole of the insulator layer and electrically connected to the passive element portion, and an external connection terminal which is electrically connected to the lead terminal. The insulator layer comprises a first face on the side of the passive element portion, a second face on the side opposite the passive element portion, and a third face which connects the first face and the second face and constitutes the peripheral face of the insulator layer, the external connection terminal is in contact with the lead terminal and the second face and the third face of the insulator layer. In a cross-section of the through-hole in a thickness direction of the substrate, a boundary line between the internal surface of the through-hole and the lead terminal is inclined in a direction moving away from a region of the third face with which the external connection terminal is in contact with an end of the boundary line on the side of the first face being taken as a fixed point.