公开(公告)号：EP3387492A1

公开(公告)日：2018-10-17

申请号：EP16809639.4

申请日：2016-12-07

Applicant: Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. ,  Fraunhofer Gesellschaft zur Förderung der angewandten Forschung E.V.

Inventor： MELDE, Kai ,  FISCHER, Peer ,  WEBER, Peter-Karl

IPC: G03H1/04 ,  G03H1/08 ,  A61N7/00 ,  G01N29/06 ,  G03H1/02 ,  G03H3/00

CPC classification number: G03H1/0891 ,  A61B17/22012 ,  A61B90/90 ,  A61B90/98 ,  A61N7/02 ,  A61N7/022 ,  A61N2007/0056 ,  A61N2007/006 ,  A61N2007/0078 ,  G01N29/0663 ,  G01N29/2418 ,  G02B5/32 ,  G03H1/0244 ,  G03H1/0256 ,  G03H1/0476 ,  G03H3/00 ,  G03H2001/0077 ,  G03H2001/0094 ,  G03H2001/0484 ,  G03H2001/0816 ,  G03H2001/2234 ,  G03H2210/36 ,  G03H2210/63 ,  G03H2223/25 ,  G03H2227/02 ,  G03H2227/06

Abstract: An ultrasonic apparatus (100) for creating a holographic ultrasound field comprises an ultrasound source device (10) being adapted for creating an ultrasound wave (1), and a transmission hologram device (20) having a transmission hologram (21) and an exposed acoustic emitter surface (22), said transmission hologram device (20) being acoustically coupled with the ultrasound source device (10) and being arranged for transmitting the ultrasound wave through the acoustic emitter surface (22) and creating the holographic ultrasound field in a surrounding space, wherein the acoustic emitter surface (22) is a smooth surface which does not influence the field distribution of the ultrasound. Furthermore, a method of creating a holographic ultrasound field in an object (3), wherein the ultrasonic apparatus (100) is used, and applications of the ultrasonic apparatus (100) are described.

公开(公告)号：EP3175302A2

公开(公告)日：2017-06-07

申请号：EP15827025.6

申请日：2015-07-31

Applicant: The Regents of the University of California

Inventor： OZCAN, Aydogan ,  GREENBAUM, Alon ,  ZHANG, Yibo ,  FEIZI, Alborz ,  LUO, Wei

IPC: G03H1/04 ,  G03H1/00

CPC classification number: 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

Abstract: 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.

Abstract translation: 一种用于在样品中的样本或对象的无透镜成像方法使用多高度迭代阶段的检索和旋转场变换到具有临床类似的图像质量到基于透镜的台式显微镜进行病理样品的宽FOV成像。 的传输的强度（TIE）方程的解是在相位恢复方法中用作初始猜测在加快恢复过程图像。 所述全息重建图像可以数字聚焦在无需任何聚焦调整对象FOV（残像捕获）内的任何深度，并且因此数字为工件从样品和传感器平面之间不受控制的倾斜和高度变化所产生校正。 在替代实施例中，合成孔径方法用于多角度迭代相位恢复执行病理学样品的宽FOV成像和提高图像的有效数值孔径。

公开(公告)号：EP3067754A1

公开(公告)日：2016-09-14

申请号：EP16154546.2

申请日：2004-12-15

Applicant: Cambridge Enterprise Limited, The Old Schools

Inventor： CROSSLAND, William ,  COLLINGS, Neil ,  BUCKLEY, Edward ,  CABLE, Adrian ,  LAWRENCE, Nicholas ,  MASH, Peter ,  WILKINSON, Timothy

IPC: G03H1/22 ,  G03H1/08

CPC classification number: G03H1/2645 ,  G03H1/0808 ,  G03H1/0841 ,  G03H1/2205 ,  G03H1/2249 ,  G03H1/2286 ,  G03H1/2294 ,  G03H2001/0816 ,  G03H2001/085 ,  G03H2001/2215 ,  G03H2001/2218 ,  G03H2001/2231 ,  G03H2001/2255 ,  G03H2001/2271 ,  G03H2001/2297 ,  G03H2001/261 ,  G03H2001/306 ,  G03H2210/20 ,  G03H2210/30 ,  G03H2210/40 ,  G03H2210/454 ,  G03H2222/35 ,  G03H2223/13 ,  G03H2223/55 ,  G03H2225/25 ,  G03H2225/31 ,  G03H2225/32 ,  G03H2225/52 ,  G03H2225/55 ,  G03H2225/60 ,  G03H2225/61 ,  G03H2226/02 ,  G03H2240/41 ,  G03H2240/42 ,  G03H2240/51

Abstract: A method of projecting a 2D video image, comprising receiving sequential image frames at a processor. Each image frame is processed to obtain a kinoform. A programmable diffractive element such as an SLM (206) represents the sequence of kinoforms allowing reproduction of the image using a suitable illumination beam and further controlling the intensity of the source of illumination (200) to be modulated correspondingly to achieve a uniform overall brightness between frames, in accordance with the number of "on" points in each frame, by pulse-width modulation with a duty cycle proportional to the desired brightness to achieve the required average intensity.

Abstract translation: 一种投影2D视频图像的方法，包括在处理器处接收顺序图像帧。 处理每个图像帧以获得kinoform。 诸如SLM（206）的可编程衍射元件表示允许使用合适的照明光束再现图像的kinoform的序列，并且进一步控制要相应调制的照明源（200）的强度以实现均匀的整体亮度， 帧，根据每帧中“开”点的数量，通过脉冲宽度调制与占空比成比例的所需亮度达到所需的平均强度。

公开(公告)号：EP2024792B1

公开(公告)日：2015-04-22

申请号：EP07724898.7

申请日：2007-05-04

Applicant: Cambridge Enterprise Limited

Inventor： CHRISTMAS, Jamieson ,  CROSSLAND, William, Alden

IPC: G03H1/08

CPC classification number: G03H1/2294 ,  G03H1/0808 ,  G03H2001/0816 ,  G03H2001/085 ,  G03H2001/2218 ,  G03H2210/441 ,  G03H2225/32

公开(公告)号：EP2634648A1

公开(公告)日：2013-09-04

申请号：EP13000643.0

申请日：2013-02-07

Applicant: LG Electronics Inc.

Inventor： Sung, Jaewon ,  Koo, Moonmo ,  Yea, Sehoon

IPC: G03H1/08

CPC classification number: G03H1/08 ,  G03H2001/0816 ,  G03H2001/0825 ,  G03H2001/0833

Abstract: A holographic display device and method of generating a hologram using redundancy of 3D video are disclosed. A storage unit stores the hologram of a previous 3D image frame. A control unit generates an update map indicating an update required 3D point among 3D points included in a current 3D image frame based on the current 3D image frame and the previous 3D image frame and modifies the update map to further include information indicating the update of a 3D point related to the update required.

Abstract translation: 全息显示装置以及使用3D视频的冗余的全息图的方法游离缺失光盘。 存储单元存储的先前的3D图像帧的全息图。 控制单元基因率的更新地图表示包含在基于当前3D图像帧和先前3D图像帧上的当前3D图像帧的3D点中的需要更新的3D点和修改的更新地图つweiterer包括信息指示的更新 涉及到需要更新的3D点。

公开(公告)号：EP2506090A3

公开(公告)日：2013-01-02

申请号：EP12173661.5

申请日：2001-05-29

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： Hamano, Tomohisa ,  Kitamura, Mitsuru ,  Kodama, Daijiro ,  Fujita, Hiroshi ,  Yabuhara, Hideo (diseased)

IPC: G03H1/08 ,  G02B5/32 ,  G02F1/1333 ,  G02B5/18

CPC classification number: G02B5/0252 ,  G02B5/1861 ,  G02B5/32 ,  G02F1/133371 ,  G02F1/133553 ,  G03H1/0244 ,  G03H1/08 ,  G03H1/24 ,  G03H2001/0816 ,  G03H2001/0825 ,  G03H2001/085 ,  G03H2001/2265 ,  G03H2001/306 ,  G03H2260/63

Abstract: The invention provides a computer-generated hologram which can be viewed in white at the desired viewing region and a reflective liquid crystal display using the same as a reflector. The computer-generated hologram H is designed to diffuse light having a given reference wavelength λ STD and incident thereon at a given angle of incidence θ in a specific angle range. In a range of wavelengths λ MIN to λ MAX including the reference wavelength λ STD wherein zero-order transmission light or zero-order reflection light of incident light on the computer-generated hologram at a given angle of incidence is seen in white by additive color mixing, the maximum diffraction angle β 2MIN of incident light of the minimum wavelength λ MIN in the wavelength range and incident at the angle of incidence θ is larger than the minimum diffraction angle β 1MAX of incident light of the maximum wavelength λ MAX in the wavelength range and incident at said angle of incidence θ.

公开(公告)号：EP2506089A3

公开(公告)日：2012-12-19

申请号：EP12173655.7

申请日：2001-05-29

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： Hamano, Tomohisa ,  Kitamura, Mitsuru ,  Kodama, Daijiro ,  Fujita, Hiroshi ,  Yabuhara, Hideo (diseased)

IPC: G03H1/08 ,  G02B5/32 ,  G02F1/1333

CPC classification number: G02B5/0252 ,  G02B5/1861 ,  G02B5/32 ,  G02F1/133371 ,  G02F1/133553 ,  G03H1/0244 ,  G03H1/08 ,  G03H1/24 ,  G03H2001/0816 ,  G03H2001/0825 ,  G03H2001/085 ,  G03H2001/2265 ,  G03H2001/306 ,  G03H2260/63

Abstract: The invention, provides a computer-generated hologram which can be viewed in white at the desired viewing region and a reflective liquid crystal display using the same as a reflector. The computer-generated hologram H is designed to diffuse light having a given reference wavelength λ STD and incident thereon at a given angle of incidence θ in a specific angle range. In a range of wavelengths λ MIN to λ MAX including the reference wavelength λ STD wherein zero-order transmission light or zero-order reflection light of incident light on the computer-generated hologram at a given angle of incidence is seen in white by additive color mixing, the maximum diffraction angle β 2MIN of incident light of the minimum wavelength λ MIN in the wavelength range and incident at the angle of incidence θ is larger than the minimum diffraction angle β 1MAX of incident light of the maximum wavelength λ MAX in the wavelength range and incident at said angle of incidence θ.

Abstract translation: 本发明提供一种可以在白色在期望的观看区域，并使用相同的反射器的反射型液晶显示被看作一个计算机生成的全息图。 该计算机生成的全息图H被设计成其上的光具有一个给定的参考波长“STD和入射在入射¸在特定角度范围内的给定角度扩散。 在一定范围的波长的“MIN为” MAX包括参考波长“STD worin零级透射光或在以入射角的一个给定的角度的计算机生成的全息图的入射光的零阶反射光在白色通过加色看到 混合后，将最小波长的入射光的最大衍射角²ZMIN“的波长范围内和入射在入射¸的角度MIN大于最小衍射角²最大波长的入射光的1MAX较大的”在波长MAX 范围和入射在入射¸的所述角度。

公开(公告)号：EP2491366B1

公开(公告)日：2016-12-28

申请号：EP10825529.0

申请日：2010-10-19

Applicant: The Regents of the University of California

Inventor： OZCAN, Aydogan ,  ISIKMAN, Serhan Omer ,  OZTOPRAK, Chetin

IPC: G01N1/28 ,  G03H1/06 ,  G01N15/14 ,  G03H1/08 ,  G01N15/10 ,  G03H1/04 ,  G03H1/22

CPC classification number: G03H1/06 ,  G01N15/1475 ,  G01N15/1484 ,  G01N21/6456 ,  G01N2015/1006 ,  G01N2015/1454 ,  G01N2021/6471 ,  G01N2021/6482 ,  G01N2021/6484 ,  G01N2201/0833 ,  G03H1/041 ,  G03H1/0443 ,  G03H1/0866 ,  G03H2001/0447 ,  G03H2001/0454 ,  G03H2001/0816 ,  G03H2001/0825 ,  G03H2001/2284 ,  G03H2222/13 ,  G03H2222/22 ,  G03H2222/24 ,  G03H2222/34 ,  G03H2223/18 ,  G03H2226/11 ,  G03H2227/02 ,  G03H2240/62

公开(公告)号：EP2936252A1

公开(公告)日：2015-10-28

申请号：EP13812041.5

申请日：2013-12-20

Applicant: Two Trees Photonics Limited

Inventor： CHRISTMAS, Jamieson ,  MASIYANO, Dackson

IPC: G03H1/08 ,  G02B27/00

CPC classification number: G02B27/0103 ,  G02B2027/0107 ,  G02B2027/0109 ,  G02B2027/011 ,  G02B2027/013 ,  G03H1/0808 ,  G03H1/0841 ,  G03H1/16 ,  G03H1/2205 ,  G03H1/2294 ,  G03H2001/0816 ,  G03H2001/0825 ,  G03H2001/0833 ,  G03H2001/085 ,  G03H2001/221 ,  G03H2001/2218 ,  G03H2001/2242 ,  G03H2001/2271 ,  G03H2001/2284 ,  G03H2001/306 ,  G03H2223/14 ,  G03H2225/32 ,  G03H2225/60 ,  G03H2225/61 ,  G03H2226/05 ,  G06T5/20 ,  G06T11/60 ,  G06T2207/10016 ,  G06T2207/10024 ,  H04N9/3185

Abstract: There is provided a method of projection using an optical element (502,602) having spatially variant optical power. The method comprises combining Fourier domain data representative of a 2D image with Fourier domain data having a first lensing effect (604a) to produce first holographic data. Light is spatially modulated (504,603a) with the first holographic data to form a first spatially modulated light beam. The first spatially modulated light beam is redirected using the optical element (502,602) by illuminating a first region (607) of the optical element (602) with the first spatially modulated beam. The first lensing effect (604a) compensates for the optical power of the optical element in the first region (607). Advantageous embodiments relate to a head-up display for a vehicle using the vehicle windscreen (502,602) as an optical element to redirect light to the viewer (505,609).

Abstract translation: 提供了使用具有空间变化光功率的光学元件（502,602）的投影方法。 该方法包括将代表2D图像的傅立叶域数据与具有第一透镜效应的傅立叶域数据组合（604a）以产生第一全息数据。 用第一全息数据对光进行空间调制（504,603a），以形成第一空间调制光束。 通过用第一空间调制束照射光学元件（602）的第一区域（607），使用光学元件（502,602）重定向第一空间调制光束。 第一透镜效应（604a）补偿第一区域（607）中的光学元件的光功率。 有利的实施例涉及使用车辆挡风玻璃（502,602）作为光学元件将光重定向到观察者（505,609）的车辆的平视显示器。

公开(公告)号：EP2440364A1

公开(公告)日：2012-04-18

申请号：EP10728149.5

申请日：2010-06-09

Applicant: Easy Laser, S. L.

Inventor： DE ECHANIZ, Sebastian Rodrigo ,  SANS RAVELLAT, Ramon

IPC: B23K26/06 ,  G03H1/04

CPC classification number: B23K26/06 ,  G02B5/1876 ,  G03H1/00 ,  G03H1/0005 ,  G03H1/08 ,  G03H1/2294 ,  G03H2001/0094 ,  G03H2001/0816 ,  G03H2001/0825 ,  G03H2001/306

Abstract: The system comprises an SLM (3); means for irradiating a laser beam (1, 2) onto said SLM (3); controlling means (4a, 4b) intended to control said SLM (3) in order to define a CGH corresponding to the desired optical image and intended to be irradiated onto an object (5), by means of the modulated reflection of the phase of said irradiated laser light according to said CGH; and focusing means comprising a Fresnel lens holographically defined onto the SLM (3), to improve efficiency in the use of the irradiated laser light energy. The method comprises carrying out an equalization step of the pixels of one image onto which an IFTA is applied in order to generate a CGH for an SLM.