Patent application number | Description | Published |
20080233328 | INFORMATION MEDIUM - An information medium includes a reflective layer with Ag as a main constituent, a sulfide species dielectric layer, and a recording layer in the mentioned order on a surface of a substrate. Data is recorded and reproduced by emitting a laser beam from an opposite side of the recording layer to the substrate. A barrier layer with an oxide of Zn as a main constituent is formed between the reflective layer and the sulfide species dielectric layer. | 09-25-2008 |
20090022030 | OPTICAL INFORMATION MEDIUM - An optical information medium includes a substrate and a recording layer formed on the substrate. The recording layer includes a first recording film formed of a first material that has Si as a main constituent and a second recording film that is formed of a second material that has Cu as a main constituent and to which Sn is added, the second recording film being formed in a periphery of the first recording film. Data is recorded onto and reproduced from the recording layer by irradiation of the recording layer with a laser beam. | 01-22-2009 |
20090029089 | OPTICAL INFORMATION MEDIUM - An optical information medium includes a substrate and a recording layer formed on the substrate. The recording layer includes a first recording film formed of a first material that has Si as a main constituent and a second recording film that is formed of a second material that has Cu as a main constituent and to which Ni is added, the second recording film being formed in a periphery of the first recording film. Data is recorded onto and reproduced from the recording layer by irradiation of the recording layer with a laser beam. | 01-29-2009 |
20090029090 | OPTICAL INFORMATION MEDIUM - An optical information medium includes a substrate and a recording layer formed on the substrate. The recording layer includes a first recording film formed of a first material that has Si as a main constituent and a second recording film that is formed of a second material that has Cu as a main constituent and to which In is added, the second recording film being formed in a periphery of the first recording film. Data is recorded onto and reproduced from the recording layer by irradiation of the recording layer with a laser beam. | 01-29-2009 |
20090141609 | MULTI-LAYERED OPTICAL RECORDING MEDIUM AND METHOD FOR OPTICAL RECORDING AND READING - A multi-layered optical recording medium is provided of which the manufacturing costs is significantly reduced. The multi-layered optical recording medium has multiple information recording layers and at least two layers of the information recording layers have the same medium-side address information. This configuration allows for reducing the types of master stampers and thus reducing manufacturing costs. | 06-04-2009 |
20100296377 | METHOD OF EVALUATING CHARACTERISTICS OF MULTILAYER OPTICAL RECORDING MEDIUM - A multilayer optical recording medium having three or more information recording layers is irradiated with a laser beam, and a first signal obtained from the reflected laser beam is subjected to a frequency filter. A second signal obtained by filtration through a high-pass filter is used to evaluate the characteristics of the multilayer optical recording medium. In this manner, even in a multilayer optical recording medium having three or more information recording layers, the influence of the variation of the thickness and material of the information recording layers and the influence of the variation of the thickness of a spacer layer can be clearly determined and evaluated. | 11-25-2010 |
20110050082 | ORGANIC ELECTROLUMINESCENT LIGHT SOURCE - An organic electroluminescent light source device includes, in the following order from a light-emitting surface side, a first transparent electrode layer, a luminescent layer, a second transparent electrode layer, and a reflecting layer, wherein the reflecting layer includes a concavo-convex structure with an average inclination angle of 12 to 45°. An organic electroluminescent light source device includes, in the following order, a first transparent electrode layer, a luminescent layer, a second transparent electrode layer, a diffusing layer, and a reflecting-scattering layer, wherein the diffusing layer has a concavo-convex surface including a concavo-convex structure with an average inclination angle of 17 to 45°. | 03-03-2011 |
20110076436 | OPTICAL RECORDING MEDIUM AND METHOD FOR MANUFACTURING THE SAME - An optical recording medium having three or more information recording layers reduces crosstalk caused by multi-reflected beams and improves signal quality. In the optical recording medium having three or more information recording layers, the refractive index of a plurality of intermediate layers disposed between adjacent information recording layers is greater than the refractive index of a cover layer disposed between a light incident surface and an information recording layer being the closest from the light incident surface. | 03-31-2011 |
20110198987 | PLANAR LIGHT SOURCE DEVICE - A planar light source device is provided which has high light extraction efficiency and in which a change in color tone at different viewing angles is small. The planar light source device includes, on a light emitting surface, a concavo-convex structure layer made of a resin composition. In this planar light source device, the concavo-convex structure layer has a cone, pyramid, or prism shape, and the resin composition contains a transparent resin and particles. In particular, in the planar light source device, variations in any of x- and y-chromaticity coordinates in any directions in a hemisphere on the light emitting surface are within ±0.1, the diameter of the particle is 10 μm or less, and the amount of the particles is 1 to 40 wt % based on the total amount of the resin composition. In addition, the difference in refractive index between the particles and the transparent resin is 0.05 to 0.5. | 08-18-2011 |
20110235491 | OPTICAL RECORDING MEDIUM AND OPTICAL RECORDING METHOD - An optical recording medium having a good power margin during recording is provided. In an optical recording medium, a Cu recording layer that includes Cu as a main component, a first Si recording layer that is arranged adjacent to the cover layer side of the Cu recording layer and includes Si as a main component, and a second Si recording layer that is arranged adjacent to the substrate side of the Cu recording layer and includes Si as a main component, are stacked between the substrate and the cover layer. | 09-29-2011 |
20110280116 | OPTICAL RECORDING MEDIUM AND OPTICAL RECORDING METHOD - An optical recording medium having a good power margin property during recording and good jitter during reading is provided. In an optical recording medium, a Ti recording layer that includes Ti as a main component and Al as an addition component and a first Si recording layer that is arranged adjacent to a cover layer side of the Ti recording layer and includes Si as a main component are stacked between a substrate and the cover layer. | 11-17-2011 |
20120068596 | SURFACE LIGHT SOURCE DEVICE, LIGHTING DEVICE, AND BACKLIGHT DEVICE - A surface light source device includes an organic electroluminescent element including a luminescent layer and a light-emitting surface structure layer disposed on one of the surfaces of the organic electroluminescent element. In the surface light source device, the light-emitting surface structure layer includes a concave-convex structure provided on a surface thereof on the side toward a device light-emitting surface, and the concave-convex structure includes a plurality of concave portions having oblique surfaces and flat portions disposed around the concave portions. The flat portions and/or the concave portions have a size difference in one or more of their width, height, depth, and spacing, the size difference being larger than the difference that causes interference of one or both of emitted light and reflected light. | 03-22-2012 |
20120080710 | SURFACE LIGHT SOURCE DEVICE, LIGHTING DEVICE, AND BACKLIGHT DEVICE - A surface light source device is provided that has high light extraction efficiency and high mechanical strength and can suppress a change in color tone at different viewing angles. To that end, the surface light source device includes: an organic EL element including a luminescent layer; and a light-emitting surface structure layer that is disposed in contact with one of the surfaces of the organic EL element and defines a concave-convex structure on the surface on the device light-emitting surface side. The concave-convex structure includes a plurality of concave portions having oblique surfaces and flat portions disposed around the concave portions. The surface light source device further includes a diffusing member on which the light emitted from the luminescent layer is incident, the diffusing member allowing the incident light to pass therethrough or reflecting the incident light in a diffused manner. | 04-05-2012 |
20120170433 | RECORDING MEDIUM AND RECORDING/REPRODUCING APPARATUS THEREFOR - The present invention provides a recording medium and a recording/reproducing apparatus which enable the number of data units of recording pulse information to be reduced by dividing the recording pulse information into | 07-05-2012 |
20120200221 | ORGANIC ELECTROLUMINESCENT LIGHT SOURCE DEVICE - An organic electroluminescent light source device including a first transparent electrode layer, a light-emitting layer, a second transparent electrode layer, and a reflective layer having a reflective surface, in this order from a light-emitting surface side, and further including a structural layer X that is provided between the second transparent electrode layer and the reflective surface and is in contact with the reflective surface, wherein the reflective surface has a concavo-convex structure, the concavo-convex structure has a plurality of concavo-convex structure units formed of depressions or protrusions, and a refractive index n of the structural layer X, an inclination angle θ×1 (°) of the concavo-convex structure units, and a mean inclination angle θ×2 (°) of the concavo-convex structure at the reflective surface satisfy θ×1≦sin | 08-09-2012 |
20120248974 | OPTICAL SHEET AND SURFACE LIGHT SOURCE APPARATUS - An optical sheet comprising: a transparent substrate having a first surface S | 10-04-2012 |
20130021667 | GAS BARRIER LAMINATE AND CIRCULARLY POLARIZING PLATE - A gas barrier multilayer body including a composite layer A which has a film (a) and an inorganic barrier layer (a), and a composite layer B which has an alicyclic olefin resin film (b) and an inorganic barrier layer (b), wherein a surface of the composite layer A and a surface of the composite layer B are faced and bonded to each other, a surface of the alicyclic olefin resin film (b) on a side facing to the composite layer A is an activation-treated surface, and the activation-treated surface of the alicyclic olefin resin film (b) is in contact with the composite layer A directly or via a metal alkoxide layer (b); and a circularly polarizing plate including the same. | 01-24-2013 |
20130076238 | SURFACE LIGHT SOURCE DEVICE - A surface light source device including: an organic EL element having a light-emitting surface for emitting light; and a light output surface structure layer provided on the organic EL element on a side of the light-emitting surface, wherein the light output surface structure layer includes concave portions which are relatively recessed and convex portions which are relatively projected, the concave portions and convex portions being provided on a surface opposite to the organic electroluminescent element in an alternate manner along an in-plane direction parallel to the surface, and the bottom of the concave portion and the top of the convex portion that are adjacent to each other are distant with distances in a thickness direction of the surface light source device, the distances being made uneven with a standard deviation range of not less than 0.05 μm. | 03-28-2013 |
20130087777 | SURFACE LIGHT SOURCE DEVICE AND LIGHTING APPARATUS - A surface light source device including an organic EL element of a double-side emission type and a light output surface structure layer provided on at least one surface of the organic EL element, wherein the light output surface structure layer includes a concavo-convex structure on a surface opposite to the organic electroluminescent element, the concavo-convex structure having flat surface portions parallel to the surface and an inclined surface portion tilted relative to the flat surface portions, and a projected area formed by projecting the inclined surface portion in a direction perpendicular to the flat surface portions onto a plane parallel to the flat surface portions is not more than 0.1 times a total area of the flat surface portions. | 04-11-2013 |
20130257267 | LIGHT-EMITTING ELEMENT - A light-emitting device having an organic EL element that has a light-emitting surface and emits light from the light-emitting surface, and a structure layer disposed directly or indirectly on the light-emitting surface. The structure layer has, on a surface thereof that is opposite to the organic electroluminescent element, a concavo-convex structure including a first streak array extending in a first direction that is parallel to the surface, a second streak array extending in a second direction that is parallel to the surface and intersects with the first direction, and a third streak array extending in a third direction that is parallel to the surface and intersects with the first direction and the second direction. | 10-03-2013 |