Abstract: A 3D display device that includes: a first optical section of focal distance f1 provided with a group of small lenses arrayed along a specific direction; and a second optical section of focal distance f2 that converges N beams of parallel light that are emitted from the first optical section and hit the individual small lenses by converging so as to offset the N beams from an optical axis. A distance d1 between the first optical section and the second optical section satisfies f2?f1?d1?f2 and a viewing distance d2 from the second optical section satisfies d2?f2.

Abstract: A projector device includes an acquisition unit configured to acquire an image from an image pickup unit that picks up the image on a projection side of a transmissive type screen to which a display image is projected by a projector; a detection unit configured to detect a position where a luminance is changed on the acquired image; and an output unit configured to output the position on the acquired image where the change in luminance is detected.

Abstract: A 3D display device that includes: a first optical section of focal distance f1 provided with a group of small lenses arrayed along a specific direction; and a second optical section of focal distance f2 that converges N beams of parallel light that are emitted from the first optical section and hit the individual small lenses by converging so as to offset the N beams from an optical axis. A distance d1 between the first optical section and the second optical section satisfies f2?f1?d1?f2 and a viewing distance d2 from the second optical section satisfies d2?f2.

Abstract: A projector device includes an acquisition unit configured to acquire an image from an image pickup unit that picks up the image on a projection side of a transmissive type screen to which a display image is projected by a projector; a detection unit configured to detect a position where a luminance is changed on the acquired image; and an output unit configured to output the position on the acquired image where the change in luminance is detected.

Abstract: A transfer mold for manufacturing a recording medium by imprinting, having a transfer surface on which a data area having a data track pattern for a disk-shaped recording medium and a dummy area having a dummy pattern in an outward portion and/or an inward portion of the data area are formed. The dummy pattern includes at least one line of a plurality of dummy protrusions that have a width in a disk radial direction of no less than a track pitch of the data track pattern.

Abstract: A pattern transfer stamper 1 according to the present invention transfers an uneven pattern to a deformable surface of a member which is a base for manufacturing a magnetic disc D including a data region 81 and a servo region 82 positioned adjacent to the data region 81 in the circumferential direction. The pattern transfer stamper 1 includes at least a guard band pattern portion 11 corresponding to the data region 81. The guard band pattern portion 11 includes linear projections 11a extending in the circumferential direction and spaced from each other in the radial direction. A support projection 15 for supporting ends 11b of the linear projections 11a is provided to be integrally connected to the ends.

Abstract: A magnetic disc has a data area including a magnetic data zone and nonmagnetic portions for physically separating the magnetic data zone, and also has a servo area provided with a magnetic pattern made up of magnetic portions and nonmagnetic portions. The servo area includes a belt-like area elongated in a radial direction of the magnetic disc and having a circumferential length at least twice as long as a unit length readable by a magnetic head in a circumferential direction of the magnetic disc. The belt-like area is provided with magnetic regions and nonmagnetic regions alternating with each other in the radial direction of the disc, where each of the magnetic and nonmagnetic regions extends from the first end to the second end of the belt-like area that are spaced from each other in the circumferential direction of the disc.

Abstract: To provide a magnetic recording medium manufacturing method capable of transferring a pattern that can serve as a source for forming anodized alumina-nanoholes with high precision and realizing high productivity, and a large-capacity magnetic recording medium capable of achieving high density recording. The method includes forming a metallic layer on a concavo-convex pattern formed on a surface of a mold; bonding a substrate using an adhesive to a surface of the metallic layer on the side opposite to the mold; separating the mold from the metallic layer; forming, through nanohole formation treatment, a porous layer in which a plurality of nanoholes are formed to orient in a direction substantially perpendicular to a substrate plane by using as a nanohole source a concavo-convex pattern which has been formed by transferring the concavo-convex pattern in the mold to the metallic layer; and charging a magnetic material inside the nanoholes.

Abstract: In a magneto-optical recording medium having a recording reproduction layer between a substrate and a protective film layer, a recording head disposed at the protective film layer side produces a magnetic field and a light is projected from the recording head side so that information is recorded on the recording reproduction layer. A ratio (Bs2×t2 /Bs1×t1) of a product Bs2×t2 to a product Bs1×t1 is not less than 0.2, where t1 denotes a film thickness of a soft magnetic layer constituting a recording head for supplying the magnetic field to the magneto-optical recording medium, the recording head having a magnetic field generating coil, Bs1 denotes a saturation magnetic flux density of the soft magnetic layer, t2 denotes a film thickness of a soft magnetic layer constituting the magneto-optical recording medium, and Bs2 denotes a saturation magnetic flux density of the soft magnetic layer.

Abstract: A recording medium substrate has on a surface thereof a foundation film for electroless plating film formation, or has such a foundation film and an electroless plating film formed thereon. The foundation film includes an alloy containing one metallic element selected from Co and Cu, and an element having a greater ionization tendency than the metallic element. A recording medium may be manufactured, for example, using such a recording medium substrate.

Abstract: A magneto-optical recording medium (D1) includes a soft magnetic layer (2) and a magneto-optical recording layer (3) laminated sequentially onto a substrate (1) and is provided with a plurality of grooves (G) and lands (L). The product of the saturation magnetic flux density and thickness of the soft magnetic layer (2) is made different for the respective grooves (G) and lands (L). Thus, with respect to each groove (G) and each land (L), the magnetic focusing effect can be enhanced for one of these with a greater product of saturation magnetic flux density and thickness of the soft magnetic layer (2), while the effect can be weakened for the other one with a smaller product of saturation magnetic flux density and thickness of the soft magnetic layer. This enables the incidence of cross-writing to be suppressed.

Abstract: A magneto-optical recording medium (X1) comprises a substrate (S1) and a material film structure. The substrate (S1) includes a pre-groove surface (11a) with a pre-groove (11b) formed therein, and at least the pre-groove surface (11a) is made of a soft magnetic material. The material film structure comprises a recording magnetic section (21) for executing a recording function and a reproduction function and is provided on a pre-groove surface (11a) of the substrate (S1).

Abstract: The magneto-optical recording medium (X1) includes a resin substrate (S1) having a pre-groove surface (1a) on which pre-grooves (1b) are formed, a recording magnetic section (11) performing a recording function and a reproduction function, a soft magnetic plating layer (12) provided between the resin substrate (S1) and the recording magnetic section (11), and a bonding layer (13) interposed between the resin substrate (S1) and the soft magnetic plating layer (12) for enhancing attachment between the resin substrate (S1) and the soft magnetic plating layer (12).

Abstract: A magneto-optical recording medium (D1) includes a soft magnetic layer (1), a groove forming layer (3), and a magneto-optical recording layer (4), successively laminated on a substrate (1). The substrate (1) is made of resin. At least a part of the surfaces of the substrate 1 held in contact with the soft magnetic layer (2) has a surface roughness of no less than 4 nm, thereby improving adhesion between the substrate (1) and the soft magnetic layer (2). Since the substrate (1) is made of resin, the production cost can be reduced.

Abstract: The present invention provides a shape replication method characterized by comprising the steps of: fixing to a table a stamper having a predetermined pattern on its surface and a center opening; supplying a photocurable resin onto the patterned surface of the stamper; setting a thin-plate-like substrate having an opening smaller in diameter than the opening of the stamper on the photocurable resin so as to keep the substrate at a predetermined position relative to the stamper; applying light from above the substrate to cure the photocurable resin; and pressing a stripping member that is insertable into the opening of the stamper against a portion of the substrate surrounding its opening and extending beyond the opening of the stamper to strip off the photocurable resin integral with the substrate from the stamper.

Abstract: In a magneto-optical recording medium having a recording reproduction layer between a substrate and a protective film layer, a recording head disposed at the protective film layer side produces a magnetic field and a light is projected from the recording head side so that information is recorded on the recording reproduction layer. A ratio (Bs2×t2/Bs1×t1) of a product Bs2×t2 to a product Bs1×t1 is not less than 0.2, where t1 denotes a film thickness of a soft magnetic layer constituting a recording head for supplying the magnetic field to the magneto-optical recording medium, the recording head having a magnetic field generating coil, Bs1 denotes a saturation magnetic flux density of the soft magnetic layer, t2 denotes a film thickness of a soft magnetic layer constituting the magneto-optical recording medium, and Bs2 denotes a saturation magnetic flux density of the soft magnetic layer.

Abstract: A recording medium suitable for magnetic super resolution reproduction and a process for manufacturing the medium are provided, in which land and groove recording is adopted and an intensity of a magnetic field for reproduction is reduced. The recording medium has the land and the groove, both of which are used for recording information. At least one of the land and the groove has an edge portion whose radius of curvature is greater than one sixth of the width of the land or the groove. The radius of curvature of the edge portion is enlarged by the process such as spatter etching of the substrate, deformation of a resist pattern by heating, ozone etching by ultraviolet rays.