序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
161 HOLOGRAPHIC IMAGING OPTICAL DEVICE US14100567 2013-12-09 US20140160543A1 2014-06-12 Andrey Nikolaevich Putilin; Vladislav Vladimirovich Druzhin; Elena Gennadievna Malinovskaya; Alexander Victorovich Morozov; Ivan Vladimirovich Bovsunovsky
In relation to a field of creating and processing a digital image, a compact portable device for generation and observation of dynamic and static holograms is provided. A system including a holographic display may be based on reconstruction and transmission of a wavefront encoded with a spatial light modulator while preserving information about a wave amplitude and a phase. Due to such features of the holographic process, an optical device may restore a wavefront similar to a wavefront coming from real objects.
162 BACK LIGHT UNIT PROVIDING DIRECTION CONTROLLABLE COLLIMATED LIGHT BEAM AND 3D DISPLAY USING THE SAME US13716855 2012-12-17 US20140092457A1 2014-04-03 Hyungseok BANG; Heejin IM; Guensik LEE
The present disclosure relates to a back light unit providing direction controllable collimated light beam and a three-dimensional display using the same. The present disclosure suggests a back light unit comprising: a light source for generating light; and a light direction controller for converting the light from the light source into a direction controlled collimated light beam having a refraction angle, the direction controlled collimated light beam emitted to a predetermined area to generate a three-dimensional holographic image. The back light unit according to the present disclosure can provide direction controllable collimation light having uniform brightness distribution over a large diagonal area of the spatial light modulator with thin and simple structure.
163 DISPLAY DEVICE AND DISPLAY SYSTEM US13995354 2012-10-16 US20140049451A1 2014-02-20 Keiji Sugiyama; Kakuya Yamamoto; Kenichi Kasazumi
A display device includes a light source which outputs laser light, an illumination optical system which emits the laser light as illumination light, a spatial modulation element which diffracts the illumination light by displaying a diffraction pattern, a diffraction pattern acquiring unit which acquires a basic diffraction pattern generated based on an image, and a diffraction pattern process unit which uses the basic diffraction pattern and a correction diffraction pattern for correcting the basic diffraction pattern to generate, as the diffraction pattern to be displayed on the spatial modulation element, a combined diffraction pattern obtained by correcting the basic diffraction pattern by the correction diffraction pattern. The spatial modulation element displays diffracted light, which is diffracted by displaying the combined diffraction pattern, to a user as a fictive image.
164 System for holography US13041407 2011-03-06 US08634119B2 2014-01-21 Arkady Bablumyan; Pierre-Alexandre Jean Blanche; Nasser N. Peyghambarian
The present invention provides systems of recording holograms that reduce the writing time, increase the diffraction efficiency, improve the resolution, or restitute color. These systems are well suited for use with an updateable 3D holographic display using integral holography and photorefractive polymer.
165 SYSTEM, APPARATUS AND METHOD FOR EXTRACTING THREE-DIMENSIONAL INFORMATION OF AN OBJECT FROM RECEIVED ELECTROMAGNETIC RADIATION US13970103 2013-08-19 US20130335796A1 2013-12-19 Joseph ROSEN; Gary BROOKER
An apparatus and method to produce a hologram of an object includes an electromagnetic radiation assembly configured to receive a received electromagnetic radiation, such as light, from the object. The electromagnetic radiation assembly is further configured to diffract the received electromagnetic radiation and transmit a diffracted electromagnetic radiation. An image capture assembly is configured to capture an image of the diffracted electromagnetic radiation and produce the hologram of the object from the captured image.
166 Interferometric system with spatial carrier frequency capable of imaging in polychromatic radiation US13083947 2011-04-11 US08526003B2 2013-09-03 Radim Chmelík; Pavel Kolman; Tomá{hacek over (s)} Slabý; Martin Anto{hacek over (s)}; Zbyn{hacek over (e)}k Dostál
In the interferometric system, the image plane is imaged by an output imaging setup via a transmission system of reflectors to the output plane and a reflection type diffraction grating is located in the image plane of an imaging setup of a reference branch. The transmission systems of reflectors are adjusted so that axes of both branches coincide at an entrance to the output plane and parallel with a normal line of the output plane, and an axial beam, diffracted by the reflection type diffraction grating at an angle α, enters into the output plane at an angle β, and the relation between angle β and α is sin(β)=sin(α)/m, where m is a magnification of the output imaging setup. The system enables the achievement of a holographic imaging of an object by low-coherence waves. Incoherent waves allow the imaging of objects immersed in scattering media.
167 APPARATUS AND METHOD FOR FAST GENERATION OF THREE-DIMENSIONAL (3D) HOLOGRAM US13686078 2012-11-27 US20130188233A1 2013-07-25 Dong Kyung NAM; Ho Cheon Wey; Seok Lee; Du Sik Park; Ju Yong Park
An apparatus for generating a hologram that may generate a three-dimensional (3D) hologram pattern at a high speed may include a pattern setting unit to set points for which hologram patterns are to be generated with respect to a one-eighth area of an entire area for which a hologram pattern is to be generated, a calculation unit to calculate pattern values for a plurality of reference points selected with respect to the one-eighth area of the entire area, and to generate a pattern for the one-eighth area using recurrent interpolation, and a pattern duplicating unit to complete a pattern for the entire area by duplicating the generated pattern for the one-eighth area.
168 BEAM DIVERGENCE AND VARIOUS COLLIMATORS FOR HOLOGRAPHIC OR STEREOSCOPIC DISPLAYS US13808379 2011-04-11 US20130170004A1 2013-07-04 Gerald Futterer
A holographic display with an illumination device, an enlarging unit and a light modulator. The illumination device includes at least one light source and a light collimation unit, the light collimation unit collimates the light of the at least one light source and generates a light wave field of the light that is emitted by the light source with a specifiable angular spectrum of plane waves, the enlarging unit is disposed downstream of the light collimation unit, seen in the direction of light propagation, where the enlarging unit comprises includes a transmissive volume hologram realising an anamorphic broadening of the light wave field due to a transmissive interaction of the light wave field with the volume hologram, and the light modulator is disposed upstream or downstream of the anamorphic enlarging unit, seen in the direction of light propagation.
169 System, apparatus and method for extracting image cross-sections of an object from received electromagnetic radiation US12524725 2007-01-29 US08405890B2 2013-03-26 Joseph Rosen
An Apparatus and method to produce a hologram of a cross-section of an object includes an electromagnetic radiation assembly configured to receive a received electromagnetic radiation, such as light, from the object. The electromagnetic radiation assembly is further configured to diffract the received electromagnetic radiation and transmit a diffracted electromagnetic radiation An image capture assembly is configure to capture an image of the diffracted electromagnetic radiation and produce the hologram of the cross-section of the object from the captured image. The hologram of the cross-section includes information regarding a single cross-section of the object.
170 METHOD AND SYSTEM FOR IMAGING AND OBJECT USING INCOHERENT LIGHT US13260569 2010-03-31 US20120050832A1 2012-03-01 Joseph Rosen; Barak Katz
A method of generating a hologram of an object is disclosed. The method comprises: receiving data corresponding to a plurality of non-coherent sub-holograms acquired by an optically passive synthetic aperture holographic apparatus, combining the sub-holograms to generate a mosaic hologram of the object, and transmitting the mosaic hologram to a computer readable medium.
171 SYSTEM FOR HOLOGRAPHY US13041407 2011-03-06 US20120008482A1 2012-01-12 Arkady Bablumyan; Pierre-Alexandre Jean Blanche; Nasser N. Peyghambarian
The present invention provides systems of recording holograms that reduce the writing time, increase the diffraction efficiency, improve the resolution, or restitute color. These systems are well suited for use with an updateable 3D holographic display using integral holography and photorefractive polymer.
172 OPTICAL PROCESSING US12710913 2010-02-23 US20100209109A1 2010-08-19 Melanie Holmes
A modular routing node includes a single input port and a plurality of output ports. The modular routing node is arranged to produce a plurality of different deflections and uses small adjustments to compensate for wavelength differences and alignment tolerances in an optical system. An optical device is arranged to receive a multiplex of many optical signals at different wavelengths, to separate the optical signals into at least two groups, and to process at least one of the groups adaptively.
173 Optical processing US11515389 2006-09-01 US07612930B2 2009-11-03 Melanie Holmes
To operate an optical device comprising an SLM with a two-dimensional array of controllable phase-modulating elements groups of individual phase-modulating elements are delineated, and control data selected from a store for each delineated group of phase-modulating elements. The selected control data are used to generate holograms at each group and one or both of the delineation of the groups and the selection of control data is/are varied. In this way upon illumination of the groups by light beams, light beams emergent from the groups are controllable independently of each other.
174 Optical processing US10487810 2002-09-02 US07145710B2 2006-12-05 Melanie Holmes
To operate an optical device comprising an SLM with a two-dimensional array of controllable phase-modulating elements groups of individual phase-modulating elements are delineated, and control data selected from a store for each delineated group of phase-modulating elements. The selected control data are used to generate holograms at each group and one or both of the delineation of the groups and the selection of control data is/are varied. In this way upon illumination of the groups by light beams, light beams emergent from the groups are controllable independently of each other.
175 Secured document, system for manufacturing same and system for reading this document US10971136 2004-10-25 US06980336B2 2005-12-27 Cécile Joubert; Brigitte Loiseaux; Philippe Robin; Claude Bricot
A document includes at least one drawing or data produced, for example, by printing. In addition, this document includes a hologram representing part of the document. The hologram of this document is recorded using a system including a prerecorded or electrically controllable optical modulator in which the image of at least part of the document is recorded. This modulator is designed to be combined with a layer of photosensitive material. A first reference wave illuminates the layer of photosensitive material. A second wave incident on the modulator and giving rise to a third object wave is also transmitted to the layer of photosensitive material in order to interfere with the reference wave in this layer.
176 Secured document, system for manufacturing same and system for reading this document US10971136 2004-10-25 US20050052716A1 2005-03-10 Cecile Joubert; Brigitte Loiseaux; Philippe Robin; Claude Bricot
A document includes at least one drawing or data produced, for example, by printing. In addition, this document includes a hologram representing part of the document. The hologram of this document is recorded using a system including a prerecorded or electrically controllable optical modulator in which the image of at least part of the document is recorded. This modulator is designed to be combined with a layer of photosensitive material. A first reference wave illuminates the layer of photosensitive material. A second wave incident on the modulator and giving rise to a third object wave is also transmitted to the layer of photosensitive material in order to interfere with the reference wave in this layer.
177 Hologram film having identification information recorded thereon and method for manufacturing the same US10621454 2003-07-18 US20040029020A1 2004-02-12 Satoru Hamada
A simplified method is provided for recording identification information, such as a serial number or the like, in a hologram-recorded film simultaneously with hologram duplication. The method includes the steps of coupling a hologram recording film with a master hologram plate having a master hologram, the master hologram plate having a reflective area adjacent the master hologram; and directing laser beams towards the master hologram plate to induce interference between incident laser light and diffraction laser light from the master hologram in the recording film, at least some of the laser beams radiating the reflective area through a transmission type controllable display device to record a pattern in the hologram recording film corresponding to a pattern displayed at the transmission type controllable display device.
178 Hologram film having identification information recorded thereon and method for manufacturing the same US09263525 1999-03-05 US06613481B2 2003-09-02 Satoru Hamada
A simplified method is provided for recording identification information, such as a serial number or the like, in a hologram-recorded film simultaneously with hologram duplication. The method includes the steps of coupling a hologram recording film with a master hologram plate having a master hologram, the master hologram plate having a reflective area adjacent the master hologram; and directing laser beams towards the master hologram plate to induce interference between incident laser light and diffraction laser light from the master hologram in the recording film, at least some of the laser beams radiating the reflective area through a transmission type controllable display device to record a pattern in the hologram recording film corresponding to a pattern displayed at the transmission type controllable display device.
179 HOLOGRAM FILM HAVING IDENTIFICATION INFORMATION RECORDED THEREON AND METHOD FOR MANUFACTURING THE SAME US09263525 1999-03-05 US20010021474A1 2001-09-13 SATORU HAMADA
A simplified method is provided for recording identification information, such as a serial number or the like, in a hologram-recorded film simultaneously with hologram duplication. The method includes the steps of coupling a hologram recording film with a master hologram plate having a master hologram, the master hologram plate having a reflective area adjacent the master hologram; and directing laser beams towards the master hologram plate to induce interference between incident laser light and diffraction laser light from the master hologram in the recording film, at least some of the laser beams radiating the reflective area through a transmission type controllable display device to record a pattern in the hologram recording film corresponding to a pattern displayed at the transmission type controllable display device.
180 Holographic data storage and retrieval system US326711 1989-03-21 US5007690A 1991-04-16 Mao-Jin Chern; Ronald T. Smith; Brent C. Frogget
A plurality of reflective diffusing holographic memory elements (16) is positioned on a memory plate (14). An array (24) of detectors (22) faces at least one of the memory elements. A laser (26) illuminates the selected memory element and the data stored therein is reflected onto the array for reading. A new memory element may be illuminated or may be brought into interrogation position.
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