公开(公告)号：EP3382467A1

公开(公告)日：2018-10-03

申请号：EP18163359.5

申请日：2018-03-22

申请人： IMEC vzw

发明人： LIN, Ziduo ,  STAHL, Richard ,  YURT, Abdulkadir

IPC分类号： G03H1/02 ,  G03H1/04

CPC分类号： G03H1/02 ,  G02B27/0977 ,  G02B27/22 ,  G03H1/0244 ,  G03H1/0443 ,  G03H1/0465 ,  G03H2001/0212 ,  G03H2001/0447 ,  G03H2001/045 ,  G03H2001/0454 ,  G03H2001/2655 ,  G03H2001/266 ,  G03H2222/13 ,  G03H2222/34 ,  G03H2222/35 ,  G03H2223/23 ,  G03H2226/11

摘要： A device in, and system for, holographic imaging comprising: at least two light sources (102, 104, 106; 202, 204; 302, 304; 402, 404), wherein each of the at least two light sources is arranged to output light of a unique wavelength; and at least one holographic optical element (110; 208; 308; 410, 412, 414), wherein the at least two light sources and the at least one holographic optical element are arranged in relation to each other such that light from the at least two light sources incident on the at least one holographic optical element is diffractively diverted by the at least one holographic optical element to form wavefronts of similar and registered shape onto an image sensor (114, 210, 312).

公开(公告)号：EP3175302A4

公开(公告)日：2018-03-28

申请号：EP15827025

申请日：2015-07-31

申请人： UNIV CALIFORNIA

发明人： OZCAN AYDOGAN ,  GREENBAUM ALON ,  ZHANG YIBO ,  FEIZI ALBORZ ,  LUO WEI

IPC分类号： G03H1/04 ,  G03H1/00

CPC分类号： G03H1/0005 ,  G01N15/1429 ,  G01N15/1434 ,  G01N15/1475 ,  G01N2015/1006 ,  G01N2015/144 ,  G01N2015/1445 ,  G01N2015/1454 ,  G03H1/0443 ,  G03H1/0866 ,  G03H1/0891 ,  G03H2001/005 ,  G03H2001/0447 ,  G03H2001/0454 ,  G03H2001/046 ,  G03H2001/0816 ,  G03H2001/0883 ,  G03H2001/2655 ,  G03H2210/42 ,  G03H2226/02 ,  G03H2227/03 ,  H04N5/2256 ,  H04N5/23238

摘要： A method for lens-free imaging of a sample or objects within the sample uses multi-height iterative phase retrieval and rotational field transformations to perform wide FOV imaging of pathology samples with clinically comparable image quality to a benchtop lens-based microscope. The solution of the transport-of-intensity (TIE) equation is used as an initial guess in the phase recovery process to speed the image recovery process. The holographically reconstructed image can be digitally focused at any depth within the object FOV (after image capture) without the need for any focus adjustment, and is also digitally corrected for artifacts arising from uncontrolled tilting and height variations between the sample and sensor planes. In an alternative embodiment, a synthetic aperture approach is used with multi-angle iterative phase retrieval to perform wide FOV imaging of pathology samples and increase the effective numerical aperture of the image.

公开(公告)号：EP2132603B1

公开(公告)日：2016-03-23

申请号：EP08742632.6

申请日：2008-04-07

申请人： E. I. du Pont de Nemours and Company

发明人： NELSON, Brett, Ronald ,  FICKES, Michael, G.

IPC分类号： G03H1/22 ,  G03H1/26 ,  G03H1/20

CPC分类号： G03H1/202 ,  G03H2001/2263 ,  G03H2001/2271 ,  G03H2001/2655 ,  G03H2222/13 ,  G03H2222/18 ,  G03H2223/12 ,  Y10S359/90

公开(公告)号：EP2470965A2

公开(公告)日：2012-07-04

申请号：EP10812224.3

申请日：2010-08-24

申请人： LG Electronics Inc.

发明人： SHIN, Sung Chul

IPC分类号： G03H1/22 ,  G06T17/00

CPC分类号： G03H1/2205 ,  G03H1/2294 ,  G03H2001/0088 ,  G03H2001/0445 ,  G03H2001/221 ,  G03H2001/2218 ,  G03H2001/2239 ,  G03H2001/2292 ,  G03H2001/2297 ,  G03H2001/2655 ,  G03H2225/60 ,  G03H2226/04

摘要： An apparatus and method for reconstructing a hologram are disclosed. An illuminator emits a reference beam, a hologram display driver displays an interference pattern based on a video signal, a lens unit adjusts a magnification and a focus of a hologram reproduced by projecting the emitted reference beam onto the displayed interference pattern, and a scanning unit scans the adjusted hologram to pixels of a screen by controlling a direction of the adjusted hologram.

公开(公告)号：EP2126625A1

公开(公告)日：2009-12-02

申请号：EP08705645.3

申请日：2008-01-02

申请人： Nitto Denko Corporation ,  The Arizona Board of Regents on behalf of the University of Arizona

发明人： YAMAMOTO, Michiharu ,  WANG, Peng ,  PEYGHAMBARIAN, Nasser ,  LIN, Weiping

IPC分类号： G02F1/35 ,  G11B7/24 ,  G11B7/0065 ,  G11C13/04 ,  G02F1/335

CPC分类号： G02F1/3501 ,  G02F1/397 ,  G03H2001/2655 ,  G03H2260/36 ,  G03H2260/54

摘要： A photorefractive device (100) and method of manufacture are disclosed. The device (100) comprises a layered structure in which one or more polymer layers (110) are interposed between a photorefractive material (106) and at least one transparent electrode layer (104). The layered structure is further interposed between a plurality of substrates (102). When a bias is applied to the device (100), the device (100) exhibits an increase in signal efficiency of approximately three to four times that of similar, but non-buffered, devices. Concurrently, the device (100) of the present disclosure utilizes approximately half the biased voltage, advantageously resulting in a longer device lifetime.

公开(公告)号：EP1564605A3

公开(公告)日：2005-08-31

申请号：EP05000221.1

申请日：2005-01-07

申请人： E.I. DU PONT DE NEMOURS AND COMPANY

发明人： Molteni, William J.

IPC分类号： G03H1/22 ,  G03H1/04

CPC分类号： B42D25/328 ,  B42D25/29 ,  B42D2035/34 ,  G03H1/0248 ,  G03H1/041 ,  G03H1/202 ,  G03H1/2249 ,  G03H1/2286 ,  G03H2001/0016 ,  G03H2001/0204 ,  G03H2001/0413 ,  G03H2001/0415 ,  G03H2001/0417 ,  G03H2001/186 ,  G03H2001/2231 ,  G03H2001/2234 ,  G03H2001/2257 ,  G03H2001/2281 ,  G03H2001/2655 ,  G03H2001/2665 ,  G03H2210/30 ,  G03H2210/32 ,  G03H2210/33 ,  G03H2222/13 ,  G03H2222/22 ,  G03H2222/24 ,  G03H2222/42 ,  G03H2222/46 ,  G03H2222/53 ,  G03H2222/54 ,  G03H2250/40 ,  G03H2250/44 ,  G03H2260/10 ,  G03H2260/12

摘要： A holographic optical element (HOE) capable of reconstructing a deep holobject (i.e. object holographically reconstructed) and a method for using this HOE as a security device are described. The deep holobject is viewable when the HOE is illuminated with a collimated or at least partially collimated light source having a center wavelength in the visible region of the electromagnetic spectrum and a spectral bandwidth, wherein the spectral bandwidth of the collimated or at least partially collimated light source at least partially overlaps the spectral bandwidth wherein the holobject is reached. The deep holobject is not viewable (i.e., appears essentially unrecognizable to the human eye) when the HOE is illuminated with a diffuse lighting source, such as ordinary room lighting.

摘要翻译： 描述了能够重建深度holobject（即，全息重建的物体）的全息光学元件（HOE）以及使用该HOE作为安全装置的方法。 当用电磁光谱的可见光区域中的中心波长和光谱带宽的准直或至少部分准直的光源照射HOE时，深度holobject是可见的，其中准直或至少部分准直的光的光谱带宽 源至少部分地与达到全息物体的光谱带宽重叠。 当HOE用漫射光源（例如普通室内照明）照明时，深度holobject不可见（即，看起来对于人眼基本上不可识别）。

公开(公告)号：EP1183557A1

公开(公告)日：2002-03-06

申请号：EP00927600.7

申请日：2000-05-18

申请人： Holographic Imaging LLC

发明人： PAYNE,Douglas ,  SLINGER, Christopher W.

IPC分类号： G02B5/32

CPC分类号： G03H1/02 ,  G02B5/32 ,  G03H1/0808 ,  G03H1/2249 ,  G03H1/2286 ,  G03H1/2294 ,  G03H2001/0224 ,  G03H2001/2231 ,  G03H2001/2234 ,  G03H2001/2292 ,  G03H2001/2297 ,  G03H2001/2655 ,  G03H2210/30 ,  G03H2222/36 ,  G03H2223/19 ,  G03H2225/21 ,  G03H2225/25 ,  G03H2225/55 ,  H04N5/7441

摘要： A holographic display comprises a light source and an Electrically Addressable Spatial Light Modulator (EASLM) (1) in the path of the light source. A light guiding means (4) is arranged to guide light from the EASLM to each of a set of tiled regions of a OASLM (8) in turn. The Optically Addressable Spatial Light Modulator (OASLM) has a monostable light modulation property which is changed from a first state to a second state by incident light.

公开(公告)号：EP0634709B1

公开(公告)日：2001-03-07

申请号：EP94111623.8

申请日：1988-07-12

申请人： POLAROID CORPORATION

发明人： Cowan, James J.

IPC分类号： G03H1/04 ,  G02B5/18 ,  G03H1/02

CPC分类号： G03H1/0248 ,  G02B5/1857 ,  G03H1/0244 ,  G03H1/0252 ,  G03H1/028 ,  G03H1/28 ,  G03H2001/0413 ,  G03H2001/0415 ,  G03H2001/0419 ,  G03H2001/2655 ,  G03H2210/63 ,  G03H2223/25 ,  G03H2260/63

公开(公告)号：EP0634709A1

公开(公告)日：1995-01-18

申请号：EP94111623.8

申请日：1988-07-12

申请人： POLAROID CORPORATION

发明人： Cowan, James J.

IPC分类号： G03H1/04 ,  G02B5/18 ,  G03H1/02

CPC分类号： G03H1/0248 ,  G02B5/1857 ,  G03H1/0244 ,  G03H1/0252 ,  G03H1/028 ,  G03H1/28 ,  G03H2001/0413 ,  G03H2001/0415 ,  G03H2001/0419 ,  G03H2001/2655 ,  G03H2210/63 ,  G03H2223/25 ,  G03H2260/63

摘要： A hologram is fabricated by opening a volume phase reflection hologram formed in a recording medium (15) such as a positive photoresist. The opening occurs by forming a second hologram, such as an off-axis hologram, in the same recording medium. The opened hologram can be replicated in metal and the metal can be used to emboss the fringe pattern of the opened hologram into plastic. A full range of colors in the visible spectrum may be obtained by metallizing the embossed plastic structure and then by overcoating it with appropriate clear dielectric layers.

摘要翻译： 通过打开形成在诸如正性光致抗蚀剂的记录介质（15）中的体积相位反射全息图来制造全息图。 通过在相同的记录介质中形成诸如离轴全息图之类的第二全息图来进行开口。 打开的全息图可以用金属复制，金属可用于将打开的全息图的条纹图案压印成塑料。 可以通过对压花塑料结构进行金属化，然后通过用适当的透明电介质层进行涂覆来获得可见光谱中的全部颜色。

公开(公告)号：EP2126625B1

公开(公告)日：2012-02-22

申请号：EP08705645.3

申请日：2008-01-02

申请人： Nitto Denko Corporation ,  The Arizona Board of Regents on behalf of the University of Arizona

发明人： YAMAMOTO, Michiharu ,  WANG, Peng ,  PEYGHAMBARIAN, Nasser ,  LIN, Weiping

IPC分类号： G02F1/35 ,  G11B7/24 ,  G11B7/0065 ,  G11C13/04 ,  G02F1/335

CPC分类号： G02F1/3501 ,  G02F1/397 ,  G03H2001/2655 ,  G03H2260/36 ,  G03H2260/54

摘要： A photorefractive device (100) and method of manufacture are disclosed. The device (100) comprises a layered structure in which one or more polymer layers (110) are interposed between a photorefractive material (106) and at least one transparent electrode layer (104). The layered structure is further interposed between a plurality of substrates (102). When a bias is applied to the device (100), the device (100) exhibits an increase in signal efficiency of approximately three to four times that of similar, but non-buffered, devices. Concurrently, the device (100) of the present disclosure utilizes approximately half the biased voltage, advantageously resulting in a longer device lifetime.