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Match Document Document Title
8872866 3D display panel and pixel brightness control method thereof  
A 3D display panel includes a plurality of first and second viewing angle pixels arranged along a first direction for displaying first and second viewing angle images respectively. The first...
8873114 Lens array, imaging apparatus, and image reading apparatus  
A lens array including: a plurality of imaging portions arrayed in a first direction; wherein each of the plurality of imaging portions includes a first optical system configured to form an...
8804186 Automated lenticular photographic system  
An automated lenticular photographic system includes an interface that permits a user to upload image files and image processing and printing equipment that is in communication with the interface...
8654422 Holographic bubble generating system  
An optical effect bubble generating system includes an optical effect viewing device including one or more desired holographic images. The optical effect viewing device can be eyeglasses having...
8654171 Exposure device and image forming device  
There is provided an exposure device including: a light-emitting element array at which a plurality of light-emitting elements, that emit light that passes through an optical path of diffused...
8553330 Cylindrical lens with refractive optical element and diffractive optical element  
A cylindrical lens having a refractive optical element and a diffractive optical element is used in order to provide a cylindrical lens that can preferably be fabricated cost effectively and...
8547412 Image forming apparatus  
An image forming apparatus includes: a light source; a photosensitive member; a brushless motor including a stator and a rotor; a rotary polygon mirror rotated by the brushless motor; an...
8488895 Laser scanning digital camera with pupil periphery illumination and potential for multiply scattered light imaging  
A portable, lightweight digital imaging device uses a slit scanning arrangement to obtain an image of the eye, in particular the retina. In at least one embodiment, a digital retinal imaging...
8396339 Optical device, and virtual image display device  
A virtual image display device with an optical waveguide to guide, by internal total reflection, parallel pencil groups meeting a condition of internal total reflection, a first reflection volume...
8300278 Original reader, optical module, and optical reading method  
A module 1 movable over the original surface 110 of the original reader 100 has a metal sheet frame 4 disposed in the vicinity of its gravitational center and having a substantially channel-like...
8295142 Objective lens for recording hologram and hologram recording device  
Provided is an objective lens for recording a hologram that condenses an recording beam on a hologram recording medium, and the objective lens is configured so as to condense, in the case where...
8284452 Method for screening color separations of a lenticular image and method for producing a lenticular image on a printing material  
A method is disclosed for screening color separations of a lenticular image with a lenticular frequency of the lenticular lenses needed for viewing the lenticular image. An amplitude-modulated...
8262843 Method of applying multi-layer structure onto a curved substrate  
A curved multi-layer structure (10) is formed from individual films (1, 2) that are initially flat. The films are firmly bonded to each other along respective facing surfaces. A heat treatment is...
8213755 Optical device, and virtual image display device  
A virtual image display device with an optical waveguide to guide, by internal total reflection, parallel pencil groups meeting a condition of internal total reflection, a first reflection volume...
8081360 Light-collecting device, light-collecting device array, exposure device and image-forming apparatus  
A light-collecting device is provided, a light-collecting device, including: a first volume hologram recorded in a hologram recording layer by interference of a first spherical wave and a planar...
8073296 Optical device, and virtual image display device  
A virtual image display device which displays a two-dimensional image for viewing a virtual image in a magnified form by a virtual optical system. The virtual image display device includes an...
8023783 Optical device, and virtual image display device  
A virtual image display device is provided which displays a two-dimensional image for viewing a virtual image in a magnified form by a virtual optical system. The virtual image display device...
7999983 Lens material, optical electronic component and optical electronic device  
An optical material includes lithium tantalate, and a molar composition ratio of lithium oxide and tantalum oxide (Li2O/Ta2O5) in the lithium tantalate is in the range of 0.975 to 0.982. Since an...
7988297 Non-rigidly coupled, overlapping, non-feedback, optical systems for spatial filtering of fourier transform optical patterns and image shape content characterization  
Non-rigidly coupled, overlapping, non-feedback optical systems for spatial filtering of Fourier transform optical patterns and image shape characterization comprises a first optical subsystem that...
7925096 Method and apparatus for validating holograms  
A method and apparatus that validates a hologram by scanning the hologram at multiple angles is disclosed. The method may include scanning a document containing the hologram at a first angle to...
7905407 Electro-optical lens mounting assembly and method in electro-optical readers  
A lensholder holds at least one fixed optical lens and a variable focusing element in a spaced relation along an optical path through which light passes in an electro-optical reader. The variable...
7880945 Hologram projection screen and its manufacturing method and system as well as its applications  
A method for manufacturing a hologram projection screen includes the steps of: 1) recording hologram lens information on a photoresist plate; 2) metalizing the photoresist plate that has been...
7839550 Volume holographic filter with broad acceptance angle and narrow spectral bandwidth  
A narrowband filter with a wide acceptance angle which utilizes two holographic filter elements connected in series. The filter blocks light outside of a narrow spectral band of interest, while...
7817909 Optical device and light source  
An optical device directs light from a light source to a region of space, such as the field of view of a camera when the optical device is used as a camera flash unit. This device includes a first...
7772988 LED light assembly with predetermined distribution pattern and built-in retroreflector  
An apparatus and method for producing specified output intensity distribution requirements from a single LED source, wherein the apparatus includes a single LED source and a cover, including a...
7764413 General diffractive optics method for expanding an exit pupil  
An exit pupil extender with one input optical element and two exit optical elements disposed on different sides of the input optical element. The exit pupil extender also comprises two...
RE41455 Objective lens for optical disks having different thicknesses  
A compound objective lens is composed of a hologram lens or transmitting a part of incident light without any diffraction to form a beam of transmitted light and diffracting a remaining part of...
7710624 Controlling the transmission amplitude profile of a coherent light beam in a holographic memory system  
Holographic systems which shape coherent light beams are disclosed. These holographic systems may beam-shaping devices positioned in the path of coherent light beams to shape a coherent light beam...
7672550 Illumination light source and image display apparatus  
A coherent light source includes a plurality of light emitting points arranged in one-dimensional array. A beam shaping unit shapes a light beam so that a diameter of a light emitted from the...
7586826 Compatible optical pickup  
An optical pickup which is compatible with at least one high density recording medium that uses a blue-violet beam and at least one lower density recording medium, the optical pickup including: an...
7538916 Document lighting device, image reader, color document reader, and image forming device  
In a document lighting device, each of the plurality of the light emitting elements arrayed in a light source unit is arranged in a vicinity of a focal point on a cross section in a sub-scanning...
7532372 Method for creating a holographic screen that reconstructs uniformly magnified three-dimensional images from projected integral photographs  
A method of producing a holographic screen for reconstruction of uniformly magnified three-dimensional images from projected integral photographs. The screen is produced as an array of holographic...
7527412 Surface emitting device and display apparatus including the same  
A surface emitting device and a display apparatus including the same. The surface emitting device includes: a light source; and a light guide plate having a light exit surface on which holographic...
7515319 Lens-less spectrometer  
A lens-less system for analyzing an optical spectrum includes a sophisticated volume hologram for separating an incident diffuse optical signal into wavelength channels without aid of an external...
7502152 Device for projecting an object in a space inside a vehicle  
A device for projecting an object in a space of a vehicle is described. This object is preferably projected holographically, and a voice input and output system is assigned to this object. An...
7436561 Hologram laser unit and optical pickup apparatus  
A laser light beam of a first wavelength which is polarized in a first polarizing direction, emitted from first and second semiconductor laser elements and reflected by an information recording...
7388696 Diffuser, wavefront source, wavefront sensor and projection exposure apparatus  
A wavefront source having a wavefront formation structure (4a) and a diffuser with a scattering structure (2b) in the beam path in front of or at the level of the wavefront formation structure;...
7355768 Wavelength tunable holographic filter with broad acceptance angle and narrow spectral bandwidth  
A narrowband, tunable filter with a wide acceptance angle utilizes two holographic filter elements connected in series. The filter blocks light outside of a narrow spectral band of interest, while...
7298535 Digital situation indicator  
A personal monitoring system to be worn by an individual in a hazardous situation comprises an enclosed face mask which includes a transparent shield over at least the eves a sensor module secured...
7298553 Element for the combined symmetrization and homogenization of a bundle of beams  
The invention relates to an element for the combined symmetrization and homogenization of a beam of rays and to a method for designing an element of this type. One object of this invention is to...
7227688 Apparatus for applying optical gradient forces  
An apparatus and method for manipulating small dielectric particles. The apparatus and method involves use of a diffractive optical element which receives a laser beam and forms a plurality of...
7218429 Digital focus lens system  
A digital focus lens systems that can provide an optical system with a plurality of selectable focal powers is described. The system includes a number of switchable elements, each of which is...
7212323 Methods and apparatus for mass manufacturing two-dimensional binary information on transparent substrates using phase contrast modulated templates  
Methods and apparatus for making, encoding, and encrypting binary patterns for storing recorded information. One of the methods includes the steps of providing an original image, fragmenting the...
7209269 Displaying holographic three dimensional images  
Holographic three dimensional images of objects can be displayed via a device comprising micro holographic optical elements (MHOEs). A device for displaying holographic three dimensional images of...
7180668 Optical pickup device and optical disc device  
This invention is an optical pickup device having a composite optical element (32) which has a first diffraction grating (45) for splitting a light beam emitted from a light source (31) into...
7180669 Method and system for generating substantially uniform speckle patterns  
A diffractive optical element is positioned in an optical path between a coherent light source and a surface. The diffractive optical element is designed to disperse the light across one or more...
7161131 Multiple wavelength quadrant detection  
A quadrant detector includes a holographic optical element and a plurality of detector elements. The holographic optical element is designated to have four quadrants, each of which directs...
7133172 Variable hologram element, and optical device using the same  
The invention relates to an optical element with variable optical properties, which ensures that the amount of light available is increased, and an optical device using the same. In a liquid...
7126730 Electro-holographic lens  
An electro-holographic lens device comprising: an active layer made from a transparent photo-refractive material, whose refractive index may be locally modified by locally applying an electric...
7099590 Filtering technique for free space interconnects  
A filtering technique for a free space communication that features encoding and decoding of signals employing a filtering apparatus that includes a bulk holographic transform function. Employing...

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