Patent application number | Description | Published |
20090067314 | OPTICAL READING METHOD AND OPTICAL READING SYSTEM - An optical reading system is provided to improve read signal quality with increasing its linear recording density. An optical recording medium in which the distance from a light incident surface to an information recording layer is less than 100 μm is irradiated with a laser beam through an objective lens and information stored in the information recording layer is read by means of a PRML detection method. At this time, the constraint length n in the PRML detection method is set to an integer which satisfies 0.5×(λ/NA)/(LV/f)−103-12-2009 | |
20090130453 | Active energy ray-curable resin composition and laminate thereof - An active energy ray-curable resin composition comprises a compound (A) having an active energy ray-curable unsaturated bond in a molecule, an anti-staining property-imparting agent (B) which is a fluorine-containing polyether compound having a perfluoropolyether unit, a urethane bond and an active energy ray-curable unsaturated bond in a molecule, a compound (C) represented by the general formula (1): | 05-21-2009 |
20090155513 | Composition for hard coat, article having hard coat layer and method for producing the article - The present invention provides a composition for hard coat capable of forming a hard coat layer having the improved anti-staining property, anti-staining durability, scratch resistance, abrasion resistance, antistatic property and the like. A composition for hard coat comprising: an active energy ray-curable silicone-acrylic copolymer (A); an active energy ray-curable polyfunctional compound (B); and an electrically conductive material (C), wherein the active energy ray-curable silicone-acrylic copolymer (A) contains: a polysiloxane block (a-1), an acrylic block (a-2) containing an active energy ray-curable double bond group, and a fluoroalkyl group-containing acrylic block (a-3). | 06-18-2009 |
20090156705 | Malti-layered object comprising hard coat layer and light transmitting layer, and method for producing the same - The present invention provides a multi-layered object having a hard coat layer capable of improving anti-staining property, anti-staining durability, scratch resistance, abrasion resistance and the like. A multi-layered object comprising a hard coat layer and a light transmitting layer, wherein the hard coat layer is formed from a composition for hard coat comprising: an active energy ray-curable silicone-acrylic copolymer (A); and an active energy ray-curable polyfunctional compound (B), and wherein the active energy ray-curable silicone-acrylic copolymer (A) contains: a polysiloxane block (a-1), an acrylic block (a-2) containing an active energy ray-curable double bond group and a fluoroalkyl group-containing acrylic block (a-3). | 06-18-2009 |
20100040823 | HARDCOAT AGENT COMPOSITION AND OPTICAL INFORMATION MEDIUM THEREOF - A hardcoat agent composition comprising a fluorine-containing polyether compound (A) having a perfluoropolyether unit, urethane bond and active energy ray reactive group and a curable compound (B) having equal to or more than 2 active energy ray polymerizing groups in the molecule. An optical information medium having a film substance composed of single or multiple layers containing at least the recording layer | 02-18-2010 |
20110287343 | HOLOGRAM RECORDING MATERIAL AND HOLOGRAM RECORDING MEDIUM - The present invention provides a hologram recording material and a hologram recording medium that can stably maintain the shape of a recording layer and achieve high diffraction efficiency. A hologram recording material comprising a photoradical polymerizable compound (A), a photopolymerization initiator (B), and a dispersion medium (C). The medium (C) is selected from the group consisting of: a compound of the formula (I): | 11-24-2011 |
20120086993 | PHOTOPOLYMER MEDIUM FOR COLOR HOLOGRAM IMAGE RECORDING AND COLOR HOLOGRAM IMAGE RECORDING METHOD - A photopolymer medium | 04-12-2012 |
20120250123 | APPARATUS AND METHOD FOR EVALUATING HOLOGRAM IMAGE RECORDING MEDIUM - A method for evaluating a hologram image recording medium includes: recording continuously a plurality of fine holograms, each being the same in size as an element hologram, on a hologram image recording medium to be evaluated, using either one of a two-beam interference between a reference beam and a signal beam both being a plane wave and a two-beam interference between a reference beam being a plane wave and a signal beam being a spherical wave; reproducing a diffraction image by irradiating the recorded fine hologram with a plane wave; from intensity distribution data based on a captured diffraction image, determining an intensity distribution data array and a diffracted beam intensity I | 10-04-2012 |
20120256334 | METHOD FOR DETERMINING RECORDING EXPOSURE FOR HOLOGRAPHIC RECORDING MEDIUM AND METHOD FOR RECORDING THEREON - An optimal recording exposure is determined by varying in the first to nth stages the recording exposure with a write laser beam to record a bright pattern image and a dark pattern image in each stage as the first to nth bright pattern images and the first to nth dark pattern images, respectively; irradiating the respective pattern images with a read beam to detect the intensity of a diffracted beam from the central portion of each image of the bright and dark patterns; calculating Sa | 10-11-2012 |
20130084458 | HARD COAT AGENT COMPOSITION AND HARD COAT FILM USING THE SAME - A hard coat agent composition comprising: a urethane acrylate (B) having two or more (meth)acryloyl groups; a first fluorine-containing polyether compound (C) having an active energy ray reactive group via a urethane bond at each of both ends of a molecular chain containing a perfluoropolyether group; a second fluorine-containing polyether compound (D) having an active energy ray reactive group via a urethane bond at one end of a molecular chain containing a perfluoropolyether group and not having an active energy ray reactive group at the other end; and a curable compound (A) having two or more active energy ray polymerizing groups. | 04-04-2013 |