摘要:
An optical recording medium adapted for high density recording with a light of short wavelength which exhibits excellent jitter properties, and its recording method are provided. The optical recording medium recorded and/or reproduced with a light at a wavelength of 600 to 680 nm comprises a substrate having grooves formed on its surface at a track pitch of up to 0.8 .mu.m, and a recording layer containing an organic die disposed on the substrate. Depth A and width B of the groove (.mu.m) and leveling ratio C are in the relation:0.035.ltoreq.A.times.B.ltoreq.0.06, and2.ltoreq.C/A.ltoreq.3.5when the leveling ratio C is represented by the following formula (I):leveling ratio=[thickness of the recording layer on the groove (.mu.m)-thickness of the recording layer on the land (.mu.m)]/[depth of the groove (.mu.m)]
摘要翻译:提供适用于具有优异的抖动特性的短波长光的高密度记录的光记录媒体及其记录方法。 用600〜680nm波长的光记录和/或再现的光记录媒体包括:基板,其表面上以0.8μm的轨道间距形成有凹槽,以及记录层,该记录层包含设置在 底物。 当平整比C由下式表示时,凹槽的深度A和宽度B(μm)和平整比C的关系为:0.035 = AxB = 0.06和2 = C / A < 下面的公式(I):平整比= [纹理上的记录层的厚度(μm) - 记录层的厚度的厚度(μm)] / [凹槽的深度(μm)]
摘要:
An optical recording disk intended for use as an additionally recordable CD is provided. It has a substrate, a dye or recording layer on the substrate, and a reflective layer and a protective layer disposed on the recording layer in a close contact relationship. Recording is carried out by directing recording light to the recording layer to form a pit and reproduction is carried out by directing reproducing light to the pit. A layer containing a decomposition product of the dye or recording material, but substantially free of the substrate material is present at the interface between the substrate and the recording layer where the pit is formed.
摘要:
In an optical recording disk 1 comprising a dye layer 2 formed on a substrate 3 as a light absorbing layer and a reflective layer 4 stacked thereon, tracking servo control is carried out by the push-pull method. To produce normal and accurate tracking error signals, the surface of the dye layer 2 includes depressed and raised sections corresponding to grooves 31 and lands 35 and .DELTA.D which is given by the formula:.DELTA.D=D.sub.L +d.sub.G -D.sub.Gwherein D.sub.G is the thickness of the dye layer on the groove 31, D.sub.L is the thickness of the dye layer on the land 35, and d.sub.G is the depth of the groove has a higher magnitude than .DELTA.D.sub.0 which is associated with a tracking error signal of zero.
摘要翻译:在包括形成在作为光吸收层的基板3上的染料层2和堆叠在其上的反射层4的光记录盘1中,通过推挽方法进行跟踪伺服控制。 为了产生正常和精确的跟踪误差信号,染料层2的表面包括对应于凹槽31和平台35和DELTA D的凹陷和凸起部分,其由下式给出:DELTA D = DL + dG-DG,其中DG是 凹槽31上的染料层的厚度,DL是焊盘35上的染料层的厚度,并且dG是凹槽的深度具有与跟踪误差信号为零相关联的DELTA D0更高的量值。
摘要:
An optical recording material used in an optical recording medium which can record information by light irradiation, this optical recording material containing a dye compound obtained by salt formation between a chelate compound formed by coordination between one metal and one or two compounds represented by the following general formula (1): where A and B are groups of atoms which may be identical or different, and which respectively form aromatic rings, and X1 and X2 are respectively functional groups having one or more active hydrogen atoms which may contain a substituent group, and a cation represented by the following general formula (2): where C is a group of atoms forming a benzene ring or naphthalene ring which may have a substituent group, R1 and R2 are respectively five-membered rings or six-membered rings which may have a substituent group, Y1 is a substituent group, Q3 is a nitrogen-containing heterocyclic ring which may have a condensed ring, p and q are respectively integers from 1 to 4, and n is an integer from 0 to 3.
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 ultrasonic probe has an organism contact portion that is shaped for use along a comparatively large curvature and can easily be used while closely contacting an organism. The probe includes a first cylinder pulley secured to a probe casing, an arm secured to a motor spindle extending through the first pulley, and a second cylinder pulley rotatably arranged on the opposite side and coupled to the first pulley by a wire. The second pulley is equipped with a slider shaft that is arranged to be extendable by a slider bearing. The slider shaft is equipped with a roller contacting a guide rail of the casing. An ultrasonic element is attached to the distal end of the slider shaft to provide the telescopic structure for the slider shaft. In this manner, the size of a scanning mechanism, for oscillating the ultrasonic element along a large curvature, is reduced.
摘要:
To provide a photoelectric conversion device that has excellent photoelectric conversion efficiency and enhanced reliability without wide variations in performance. A manufacturing method of a photoelectric conversion device that includes a working electrode having a dye-supported metal oxide layer, a counter electrode disposed so as to face the working electrode, and an electrolyte layer enclosed between the working electrode and the counter electrode, includes: a step of preparing an electrolyte sheet in which an electrolyte is retained by a reticulated support member; and a step of enclosing the electrolyte sheet between the working electrode and the counter electrode.
摘要:
An optical recording material for an optical recording medium capable of recording information by irradiation of light including: a cation represented by the following general formula (1); and a chelate compound formed by an azo compound and a metal, wherein at least one of R1, R2, R3 and R4 is an optionally substituted benzyl group, and at least one of R5 and R6 is an optionally substituted alkyl group having a carbon number of at least 5 or an optionally substituted aryl group having a carbon number of at least 5.
摘要:
The present invention aims to provide a coating liquid for producing an optical recording medium that can record large volumes of data and can respond sufficiently to high speed writing, a method for producing an optical recording medium using the same, and an optical recording medium. The coating liquid for use in a method for producing an optical recording medium according one embodiment of the invention contains a solvent and a pigment dissolved in the solvent. The solvent includes TFP and/or OFP and an aliphatic saturated alcohol having 1-4 carbon atoms by 0.01-10% by mass relative to the total amount of the solvent, and the pigment includes the compound represented by the following general formula (1) and a chelate compound consisting of an azo compound and a metal. [where, each of R11, R12, R13 and R14 (hereinafter, represented as “R11-R14”) represents independently from one another a benzyl group that may have a substituent or an alkyl group having 1-4 carbon atoms, R15 represents a trimethine chain that may have a substituent, each of R16 and R17 represents independently from each other a group of atoms that constitute a benzene ring that may have a substituent or a naphthalene ring that may have a substituent, and each of R18 and R19 represents independently from each other an aryl group that may have a substituent or an alkyl group having 1-4 carbon atoms, provided that at least one group among R11, R12, R13 and R14 is not a methyl group. In this case, respective carbons of R11 and R12 and/or R13 and R14 may make a bond to form a 3- to 6-membered ring.]
摘要:
Organic EL elements provided with a substrate 10, a first electrode layer 12 and a second electrode layer 18 situated in a mutually opposing manner on one side of the substrate 10, and a luminescent layer 20 situated between the electrode layers, wherein one of the first electrode layer 12 and the second electrode layer 18 is a hole injection electrode layer and the other is an electron injection electrode layer, and there is formed in the luminescent layer 20 a modified section 16 which contains an organic polymer compound different from the organic compound composing the luminescent layer 14, in bias toward the electron injection electrode layer.