Abstract:
A phase change optical recording medium having a wide recording power margin and excellent durability to repetitive recording is disclosed. The medium includes a first protective layer, a recording layer, an interface layer, a second protective layer, and a reflective layer, the layers disposed on a transparent substrate, wherein the interface layer includes a mixture of ZrO2. Preferably, the medium further includes a second interface layer including the mixture of ZrO2 between the first protective layer and the recording layer. In another preferable aspect, the mixture of ZrO2 is represented by the following formula: [(ZrO2)100-α(X)α]β(Z)γ(ZnS)δ wherein “X” represents an oxide selected from MgO, CaO, Sc2O3, Y2O3, and CeO2; “Z” represents an oxide selected from TiO2, SiO2, Al2O3, MgO, Ta2O5, and ZnO; “α” is 2-15 mol %; “β” is 40-100 mol %; “γ” is 0-60 mol %; “δ” is 0-60 mol %; and β+γ+δ=100 mol %.
Abstract:
In an optical disk substrate film-formation apparatus which prepared an optical disk by forming a thin film on a substrate, the optical disk substrate is held by a holder section. A contact support surface is provided to the holder section which closely contacts at least a portion of the surface of the optical disk substrate rear to the surface where the think film is formed.
Abstract:
A product for recording information by use of laser light includes a recording layer being able to change between an amorphous state and a crystalline state so as to record information, the recording layer having a thickness falling within a first range defined relative to a wavelength of the laser light, a protection layer having a thickness falling within a second range defined relative to the wavelength of the laser light, a heat releasing layer having a thickness falling within a third range defined relative to the wavelength of the laser light, and a transparent substrate supporting the layers. The first, second, and third ranges are selected such that a phase of the laser light reflected by the amorphous state and a phase of the laser light reflected by the crystalline state have a phase difference larger than a predetermined phase amount.
Abstract:
A sputtering target for fabricating a recording layer of a phase-change type optical recording medium contains a compound or mixture including as constituent. elements Ag, In, Te and Ob with the respective atomic percent (atom. %) of &agr;, &bgr;, &ggr; and &dgr; thereof being in the relationship of 2≦&agr;≦30, 3≦&bgr;≦30, 10≦&ggr;≦50, 15≦&dgr;≦83 and &agr;+&bgr;+&ggr;+&dgr;=100, and a method of producing the above sputtering target is provided. A phase-change type optical recording medium includes a recording layer containing as constituent elements Ag, In, To and Sb with the respective atomic percent of &agr;, &bgr;, &ggr; and &dgr; thereof being in the relationship of 0
Abstract:
An optical information recording medium includes a first dielectric protective layer, a recording layer provided on the first dielectric protective layer, including a material represented by a chemical formula of Ag&agr;In&bgr;Sb&ggr;Te&dgr;, wherein &agr;, &bgr;, &ggr; and &dgr; respectively represent an atomic percent of Ag, an atomic percent of In, an atomic percent of Sb, and an atomic percent of Te, and satisfy the conditions of: 1≦&agr;
Abstract:
A sputtering target contains a target material including as constituent elements Ag, In, Te and Sb with the respective atomic percents (atom. %) of &agr;, &bgr;, &ggr; and &dgr; thereof being in the relationship of 0.5≦&agr;
Abstract:
A phase-change optical recording medium has a substrate, and a lower heat-resistant protective layer, a recording layer capable of recording and erasing information by utilizing changes in the phase of a phase-change recording material in the recording layer, an upper heat-resistant protective layer and a light reflecting and heat dissipating layer, which are successively overlaid on the substrate in this order, the recording material including Ag, In, Sb and Te as the main elements, at least one additional element selected from the group (1) consisting of B, C, N, Al, Si and P, and at least one additional element selected from the group (2) consisting of halogen atoms and alkali metal elements.
Abstract:
An apparatus for repairing a defect recognizes a defective portion of a color filter using an image processing mechanism, applies ink to the recognized defective portion of the color filter using a needle for applying ink of an ink application mechanism, hardens the applied ink using an ink hardening mechanism, and removes an unnecessary portion of the applied ink by irradiating laser beam from a laser irradiation mechanism.
Abstract:
An electroluminescence multi-color display device in which two electroluminescence panels each comprising an electrode layer, an insulation layer and a luminescence layer laminated on a glass substrate so as to enable dot matrix display are appended to each other so that each of the glass substrates is situated to the outer side, wherein a film-like insulation member having a strip-like pattern made of electroconductive material formed on one surface thereof is used as a lead electrode for each of said electroluminescence panels and said lead electrode is used as a spacer between the two electroluminescence panels.
Abstract:
A biomagnetic measurement apparatus includes a table on which a subject is placed; a biomagnetic detector configured to detect a biomagnetic field of the subject; a supporter configured to support a detection target region from which the biomagnetic field of the subject is detected; a radiation detector provided below the supporter; and a position changer configured to change relative positions of the biomagnetic detector and the detection target region. The supporter has a surface shape that corresponds to a surface of the biomagnetic detector.