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| Number | Title | Issue Date |
| 8189248 | Computer generated hologram, exposure apparatus and device fabrication method A computer generated hologram includes a plurality of cells which form a light intensity distribution on a predetermined plane. The plurality of cells includes a plurality of first cells including isotropic media and anisotropic media, and a plurality of second cell... | 05/29/2012 |
| 8144379 | Recording and reproducing device and polarization direction controlling method Disclosed herein is a recording and reproducing device including: a light source; an intensity modulating section; a polarization beam splitter; a selective polarization direction controlling section; a linearly polarized light/circularly polarized light converting ... | 03/27/2012 |
| 8009339 | Holographic recording medium, holographic writing system and holographic reading system A holographic recording medium including a recording layer on a substrate, which records data information in a light interference pattern. In the holographic recording medium, information on a thermal expansion characteristic of a recording material contained in the... | 08/30/2011 |
| 7990593 | Holographic storage material The invention relates to holographic storage material (1) comprising at least one polymer film (3) and one metallic first layer (4) which is applied to the polymer film (3). In order to provide a storage material (1) having improve... | 08/02/2011 |
| 7920309 | Holographic recording medium, holographic writing system and holographic reading system A holographic recording medium including a recording layer on a substrate, which records data information in a light interference pattern is provided. In the holographic recording medium, information on a thermal expansion characteristic of a recording material cont... | 04/05/2011 |
| 7852537 | Optical recording medium and method of manufacturing the same An optical recording medium includes a first substrate having a groove on the side of an outer peripheral portion thereof; a second substrate in contact with the first substrate in the outer peripheral portion; and a recording layer being disposed in a gap between t... | 12/14/2010 |
| 7847991 | Holographic storage medium Holographic storage medium which avoids the interference between a reference beam and a reconstructed object beam, wherein the holographic storage medium has a holographic storage layer on top of a reflective layer, and wherein the reflective layer has non-reflectiv... | 12/07/2010 |
| 7813016 | Method of nonlinear harmonic holography A harmonic holography (H2) technique and system that combines holography and nonlinear optics that enables holographic recording of 3D images with femtosecond framing time are provided. The H2 technique records holograms with second harmonic (S... | 10/12/2010 |
| 7800802 | Hologram recording medium and method for manufacturing same A hologram recording medium including a substrate, a hologram recording layer that records an interference pattern formed by a first wavelength beam, a wavelength selecting reflection layer provided between the substrate and the hologram recording layer that reflect... | 09/21/2010 |
| 7755818 | High-integrity seal for optical elements, dichromated gelatin holographic optical elements in particular A method and apparatus for encapsulating optical elements, particularly dichromated gelatin (DGC) holographic optical elements (HOEs), exhibits a very high degree of environmental integrity. In broad terms, the optical element is disposed between opposing plates, an... | 07/13/2010 |
| 7751104 | Hologram recording medium A hologram recording medium includes a stack of at least a lower transparent substrate, a recording layer made of a photocurable organic material, and an upper transparent substrate, wherein a spacer for keeping a thickness of the recording layer is dispersed and di... | 07/06/2010 |
| 7742208 | Holographic display and methods of manufacture and use A rewriteable diffraction grating contains first nanoparticles and second nanoparticles. Each first nanoparticle is configured and arranged to generate one or more charge carriers in response to a write beam. Each second nanoparticle is configured and arranged to su... | 06/22/2010 |
| 7701627 | Holographic recording medium, holographic writing system and holographic reading system A holographic recording medium includes a recording layer on a substrate, which records data information in a light interference pattern. Information on a thermal expansion characteristic of a recording material contained in the recording layer and/or information on... | 04/20/2010 |
| 7583422 | Holographic recording medium and holographic recording and reproducing method A white-light reconstruction hologram and a Fourier hologram for data can be recorded in a same holographic recording medium. The holographic recording medium includes, in a substantially identical plane, a white-light reconstruction holographic recording layer regi... | 09/01/2009 |
| 7545546 | Holographic recording medium and method for manufacturing the same A holographic recording medium which has parallelism of high precision and causes little substrate deformation ascribable to contraction of its recording areas when recording interference fringes, and a method for manufacturing the same. The holographic recording me... | 06/09/2009 |
| 7542185 | Holographic recording medium, holographic record erasing method, and holographic recording and reproducing apparatus A holographic record erasing method and a holographic recording and reproducing apparatus in which data reproduction can be disabled without irradiating a holographic recording medium with a high energy erasing beam or physically destroying the medium. A holographic... | 06/02/2009 |
| 7542186 | 3-D holographic recording method and 3-D holographic recording system A method of 3D holographic recording by using a very simple optical system includes dividing a femto-second laser pulse into a plurality of light beams by a diffraction beam splitter, focusing four light beams selected from the divided plurality of light beams, cont... | 06/02/2009 |
| 7502151 | Holographic recording and reconstructing apparatus and method A holographic recording and reconstructing apparatus includes a light source having a variable oscillation wavelength; a temperature sensing unit operable to sense temperature; and a control unit operable to record information about a temperature sensed by the tempe... | 03/10/2009 |
| 7474447 | Apparatus and method for recording and reproducing optical information Optical information is stored in an optical information recording medium having an information recording layer utilizing holography with an optical information recording apparatus which includes security features. An input device is used to input individual informat... | 01/06/2009 |
| 7468822 | Holographic recording medium This invention is a holographic recording medium including a track in which position information to specify a recording position and a reproducing position of page data is formed. The position information of the track is formed of position detection patterns. The po... | 12/23/2008 |
| 7443553 | Holographic sensors and their production An array of discrete sensors disposed on a substrate, each sensor comprising a holographic support medium and a hologram disposed throughout the volume of the medium, whereby interaction with an analyte results in a variation of a property of the medium. ... | 10/28/2008 |
| 7439009 | Three-dimensional optical data storage in fluorescent dye-doped photopolymer A host matrix—normally a binder such as cellulose acetate propionate in a solvent such as acetone—contains a radiation-polymerizable photopolymer—normally a monomer like dipentaerythritol pentaacrylate in combination with a crosslinker like 1-vinyl-2-pyrrolidi... | 10/21/2008 |
| 7440152 | Holographic disk medium with servo marks The present invention relates to a holographic disk medium (1) with servo marks (7), and more specifically to a holographic disk medium (1) having a common reflective layer (3) for reflecting a servo beam (9) and object and referen... | 10/21/2008 |
| 7429437 | Diffractive optical element and method of manufacture A diffractive optical element such as a diffuser, diffraction grating, and/or hologram, can be manufactured by using a surface relief pattern on a surface of a surface relief tool. A layer of curable material is physically contacted with the surface relief pattern o... | 09/30/2008 |
| 7428085 | Method for producing hologram by pico-second laser Disclosed is a method of producing a hologram through a two-beam laser interfering exposure process, which comprises emitting a coherent laser light with a pulse width (τ) ranging from greater than 900 femtoseconds to 100 picoseconds and a laser power of 10 μJ/pul... | 09/23/2008 |
| 7416306 | Laser projector A reflection-type laser projector (100) projects modulated laser beams outputted from a laser projection unit (40), on a screen, wherein a reflector (112) as a constituent of the screen (110) has reflection characteristics of reflecting, ... | 08/26/2008 |
| 7391703 | Methods for manufacturing volume Bragg grating elements Methods for recording volume Bragg grating structures having a target wavelength are disclosed. Such a method may include providing a photosensitive recording medium, bringing a first face of the recording medium into contact with a face of a prism, the prism being ... | 06/24/2008 |
| 7388695 | Data storage devices and methods A data storage device including: a plastic substrate having a plurality of volumes arranged in tracks along a plurality of vertically stacked, laterally extending layers therein; and, a plurality of micro-holograms each contained in a corresponding one of the volume... | 06/17/2008 |
| 7385740 | Hologram recording medium There is provided a hologram recording medium having: a recording layer at which a hologram can be recorded by illumination of writing light; and a protective layer provided on the recording layer in order to protect the recording layer, a water absorbency of the pr... | 06/10/2008 |
| 7384724 | Method for fabricating optical devices in photonic crystal structures A method for manufacturing optical components in a three-dimensional photonic crystal lattice. A first resist (9) is coated on a substrate (10) and exposed to an e-beam (11), to produce an imaged area (12). Another resist coating is appli... | 06/10/2008 |
| 7371510 | Material for forming resist protecting film for use in liquid immersion lithography process, composite film, and method for forming resist pattern Provided are a material for forming a resist protecting film which is for use in a liquid immersion lithography process and which is formed on a resist film, wherein the material has the following properties of: being transparent with respect to exposure light; havi... | 05/13/2008 |
| 7371465 | Polyolefin film with embossed surface An embossable, multilayer, polyolefin film comprising a core layer comprising a polyolefin and an appearance enhancing agent selected from the group consisting of coloring agents, phosphorescence producing agents, reflective agents, and mixtures thereof, wherein the... | 05/13/2008 |
| 7369286 | Hologram recording medium, and recording apparatus and reproducing apparatus for the same A hologram recording medium, and a recording apparatus and a reproducing apparatus for the same, by which scattered beam noise is minimized and recording capacity is increased using spatial separation and polarization separation in an optical system where a referenc... | 05/06/2008 |
| 7367759 | Surface relief grating image machining process and product A surface relief grating (SRG) image machining process and/or product. For the SRG image machining process a material and a cutting tool are provided. The material is contacted by the cutting tool to a predetermined depth. The cutting tool is rotated to cut the mate... | 05/06/2008 |
| 7362523 | Method for producing holographic recording medium A method for producing a holographic recording medium having a holographic recording layer between a first substrate and a second substrate including the steps of: providing a holographic recording layer forming composition onto the first substrate, forming the holo... | 04/22/2008 |
| 7361432 | Composition for hologram-recording material, hologram-recording medium, and process for producing the same An object of the present invention is to provide a hologram recording material composition comprising a radical polymerizable compound being solid at an ordinary temperature and having a 9,9-diarylflourene skeleton, a polymeric binder and a plasticizer, the composit... | 04/22/2008 |
| 7363157 | Method and apparatus for performing wide area terrain mapping A method and apparatus for performing wide area terrain mapping. The system comprises a digital elevation map (DEM) and mosaic generation engine that processes images that are simultaneously captured by an electro-optical camera (RGB camera) and a LIDAR sensor. The ... | 04/22/2008 |
| 7356948 | Cutting wheel for a trench wall cutter The invention relates to a cutting wheel for trench wall cutter, having a cutting wheel hub and at least one cutting tooth holder, which is located in substantially radially projecting manner on the cutting wheel hub. The cutting wheel according to the invention is ... | 04/15/2008 |
| 7349158 | Diffraction grating-based encoded micro-particles for multiplexed experiments Microparticles 8 includes an optical substrate 10 having at least one diffraction grating 12 disposed therein. The grating 12 having a plurality of colocated pitches Λ which represent a unique identification digital code that is detected... | 03/25/2008 |
| 7345799 | Optical recording medium and its use An optical recording medium which comprises a holographic recording layer on which information is recorded by means of holography, a light shield member fixed to at least one of main surfaces of the holographic recording layer, a control electrode for controlling a ... | 03/18/2008 |
