-
公开(公告)号：US11874631B2
公开(公告)日：2024-01-16
申请号：US17119709
申请日：2020-12-11
申请人： Envisics Ltd
CPC分类号： G03H1/30 , G02B27/01 , G02B27/0103 , G02B27/0172 , G03H1/22 , G03H1/2205 , G03H1/2286 , G03H1/2294 , G03H1/26 , G06T5/006 , G06T7/33 , G02B2027/0112 , G03H2001/0825 , G03H2001/2218 , G03H2001/2244 , G03H2001/2263 , G03H2001/2297 , G03H2001/303 , G03H2222/18 , G03H2223/55 , G03H2225/22 , G03H2225/23 , G03H2225/61 , G03H2226/02 , G03H2250/38 , G06T2207/10024
摘要： A method of holographic projection includes projecting at least one calibration image. The method includes performing the following steps for each calibration image in order to determine a plurality of displacements vectors at a respective plurality of different locations on the replay plane: projecting the calibration image onto the replay plane using a first colour holographic channel by displaying a first hologram on a first spatial light modulator and illuminating the first spatial light modulator with light of the first colour; projecting the calibration image onto the replay using a second colour holographic channel by displaying a second hologram on a second spatial light modulator and illuminating the second spatial light modulator with light of the second colour, the first and second hologram corresponding to the calibration image; determining the displacement vector between the light spot formed by the first colour holographic channel and the light spot formed by the second colour holographic channel; and pre-processing an image for projection using the second colour holographic channel in accordance with the plurality of determined displacement vectors.
-
公开(公告)号：US09775511B2
公开(公告)日：2017-10-03
申请号：US14758792
申请日：2014-01-31
IPC分类号： G01B9/02 , A61B3/10 , G01N21/47 , G03H1/08 , A61B3/00 , A61B3/14 , G03H1/00 , G03H1/04 , G01N21/17
CPC分类号： A61B3/102 , A61B3/0025 , A61B3/14 , G01N21/4795 , G01N2021/1787 , G03H1/041 , G03H1/0866 , G03H2001/005 , G03H2001/0083 , G03H2001/0452 , G03H2001/0883 , G03H2210/30 , G03H2222/14 , G03H2222/23 , G03H2223/52 , G03H2223/55
摘要： Systems and methods for sub-aperture correlation based wavefront measurement in a thick sample and correction as a post processing technique for interferometric imaging to achieve near diffraction limited resolution are described. Theory, simulation and experimental results are presented for the case of full field interference microscopy. The inventive technique can be applied to any coherent interferometric imaging technique and does not require knowledge of any system parameters. In one embodiment of the present application, a fast and simple way to correct for defocus aberration is described. A variety of applications for the method are presented.
-
公开(公告)号：US09684282B2
公开(公告)日：2017-06-20
申请号：US13500464
申请日：2010-10-08
申请人： George Barbastathis , Yuan Luo , Se Baek Oh
发明人： George Barbastathis , Yuan Luo , Se Baek Oh
CPC分类号： G03H1/2286 , G02B5/32 , G03H1/0248 , G03H1/041 , G03H1/28 , G03H2001/0033 , G03H2001/0072 , G03H2001/0264 , G03H2001/0268 , G03H2001/2244 , G03H2001/266 , G03H2210/45 , G03H2223/55
摘要： A volume holographic imaging system, apparatus, and/or method enables the projection of a two-dimensional (2D) slice of a four-dimensional (4D) probing object. A 4D probing source object is illuminated to emit or scatter an optical field. A holographic element having one or more recorded holograms receives and diffracts the optical field into a diffracted plane beam having spectral information. A 4-f telecentric relay system includes a pupil filter on the relayed conjugate plane of the volume hologram and images the pupil of the volume hologram onto the front focal plane of the collector lens. A collector lens focuses the diffracted plane beam to a 2D slice of the 4D probing source object. The focused 2D slice is projected onto a 2D imaging plane. The holographic element may have multiple multiplexed holograms that are arranged to diffract light from the corresponding slice of the 4D probing source object.
-
公开(公告)号：US20170074985A1
公开(公告)日：2017-03-16
申请号：US15364173
申请日：2016-11-29
发明人： Jamieson Christmas
CPC分类号： G03H1/0005 , B60Q1/06 , B60Q1/085 , B60Q1/12 , B60Q1/16 , B60Q2300/056 , B60Q2300/122 , B60Q2300/312 , B60Q2300/32 , B60Q2300/322 , B60Q2300/33 , B60Q2300/331 , B60Q2300/42 , B60Q2300/45 , F21S41/12 , F21S41/125 , F21S41/13 , F21S41/14 , F21S41/16 , F21S41/25 , F21S41/27 , F21S41/285 , F21S41/60 , F21S41/645 , F21S43/13 , F21S43/26 , F21S48/1127 , F21S48/1131 , F21S48/1136 , F21S48/1145 , F21S48/1225 , F21S48/125 , F21S48/1291 , F21S48/17 , F21S48/1731 , F21S48/214 , F21S48/2212 , G01S7/4814 , G01S7/4911 , G01S7/4915 , G01S17/89 , G01S17/936 , G03H1/02 , G03H1/2249 , G03H1/2294 , G03H2001/0212 , G03H2001/0216 , G03H2001/0224 , G03H2001/2263 , G03H2001/2271 , G03H2001/2284 , G03H2001/2297 , G03H2210/20 , G03H2210/22 , G03H2222/16 , G03H2222/17 , G03H2223/26 , G03H2223/55 , G03H2225/25 , G03H2225/32 , G03H2225/52 , G03H2225/61 , G03H2226/05 , G06K9/00791 , G06K9/2036 , G08G1/16
摘要： There is provided a lighting device arranged to produce a controllable light beam for illuminating a scene. The device comprises an addressable spatial light modulator arranged to provide a selectable phase delay distribution to a beam of incident light. The device further comprises fourier optics arranged to receive phase-modulated light from the spatial light modulator and form a light distribution. The device further comprises projection optics arranged to project the light distribution to form a pattern of illumination as said controllable light beam.
摘要翻译： 提供了一种布置成产生用于照亮场景的可控光束的照明装置。 该装置包括可寻址空间光调制器，其布置成向入射光束提供可选择的相位延迟分布。 该装置还包括被配置为接收来自空间光调制器的相位调制光并形成光分布的傅里叶光学器件。 该装置还包括投影光学元件，其布置成投射光分布以形成作为所述可控光束的照明图案。
-
5.发明授权公开(公告)号：US09360611B2
公开(公告)日：2016-06-07
申请号：US13500461
申请日：2010-10-08
CPC分类号： G03H1/2286 , G02B5/32 , G03H1/0248 , G03H1/041 , G03H1/28 , G03H2001/0033 , G03H2001/0072 , G03H2001/0264 , G03H2001/0268 , G03H2001/2244 , G03H2001/266 , G03H2210/45 , G03H2223/55
摘要： A volume holographic imaging system, apparatus and/or method enables the projection of a two-dimensional (2D) slice of a four-dimensional (4D) probing object A 4D probing source object is illuminated to emit or scatter an optical field. A holographic element having one or more recorded holograms receives and diffracts the optical field into a diffracted plane beam having spectral information. A 4-ftelecentric relay system includes a pupil filter on the relayed conjugate plane of the volume hologram and images the pupil of the volume hologram onto the front focal plane of the collector lens. A collector lens focuses the diffracted plane beam to a 2D slice of the 4D probing source object. The focused 2D slice is projected onto a 2D imaging plane. The holographic element may have multiple multiplexed holograms that are arranged to diffract light from the corresponding slice of the 4D probing source object.
摘要翻译： 体积全息成像系统，装置和/或方法使得四维（4D）探测对象的二维（2D）切片的投影使得4D扫描源对象被照亮以发射或散射光场。 具有一个或多个记录的全息图的全息元件接收并将光场衍射成具有光谱信息的衍射平面光束。 4位中心继电器系统包括在体积全息图的中继共轭平面上的光瞳滤波器，并将体积全息图的瞳孔成像到收集透镜的前焦平面上。 收集透镜将衍射平面光束聚焦到4D探测源对象的2D切片。 聚焦的2D切片投影到2D成像平面上。 全息元件可以具有多个多路复用全息图，其被布置为衍射来自4D探测源对象的相应切片的光。
-
6.发明申请公开(公告)号：US20120327492A1
公开(公告)日：2012-12-27
申请号：US13500461
申请日：2010-10-08
申请人： George Barbastathis , Yuan Luo , Se Baek Oh
发明人： George Barbastathis , Yuan Luo , Se Baek Oh
IPC分类号： G02B5/32
CPC分类号： G03H1/2286 , G02B5/32 , G03H1/0248 , G03H1/041 , G03H1/28 , G03H2001/0033 , G03H2001/0072 , G03H2001/0264 , G03H2001/0268 , G03H2001/2244 , G03H2001/266 , G03H2210/45 , G03H2223/55
摘要： A volume holographic imaging system, apparatus and/or method enables the projection of a two-dimensional (2D) slice of a four-dimensional (4D) probing object A 4D probing source object is illuminated to emit or scatter an optical field. A holographic element having one or more recorded holograms receives and diffracts the optical field into a diffracted plane beam having spectral information. A 4-f telecentric relay system includes a pupil filter on the relayed conjugate plane of the volume hologram and images the pupil of the volume hologram onto the front focal plane of the collector lens. A collector lens focuses the diffracted plane beam to a 2D slice of the 4D probing source object. The focused 2D slice is projected onto a 2D imaging plane. The holographic element may have multiple multiplexed holograms that are arranged to diffract light from the corresponding slice of the 4D probing source object.
摘要翻译： 体积全息成像系统，装置和/或方法使得四维（4D）探测对象的二维（2D）切片的投影使得4D扫描源对象被照亮以发射或散射光场。 具有一个或多个记录的全息图的全息元件接收并将光场衍射成具有光谱信息的衍射平面光束。 4-f远心继电器系统包括在体积全息图的中继共轭平面上的瞳孔滤光片，并将体积全息图的瞳孔成像到收集透镜的前焦平面上。 收集透镜将衍射平面光束聚焦到4D探测源对象的2D切片。 聚焦的2D切片投影到2D成像平面上。 全息元件可以具有多个多路复用全息图，其被布置为衍射来自4D探测源对象的相应切片的光。
-
公开(公告)号：US20120188619A1
公开(公告)日：2012-07-26
申请号：US13352741
申请日：2012-01-18
申请人： Hoon SONG , Yoon-sun Choi , Hong-seok Lee , Jae-hyeung Park
发明人： Hoon SONG , Yoon-sun Choi , Hong-seok Lee , Jae-hyeung Park
CPC分类号： G03H1/2294 , G03H1/2205 , G03H2001/2207 , G03H2001/2242 , G03H2001/2297 , G03H2223/12 , G03H2223/54 , G03H2223/55
摘要： A three-dimensional holographic image display device and a method using the same are provided. Light corresponding to left and right eye holograms is emitted according to a time division method and divided into a first path and a second path. Active shutters operate substantially in synchronization with the emitted left and right eye holograms to provide images to a user's left and right eyes.
摘要翻译： 提供三维全息图像显示装置及其使用方法。 对应于左眼和右眼全息图的光根据时分方法发射并分成第一路径和第二路径。 有源快门基本上与发射的左眼全息图和右眼全息图同步地操作，以向用户的左眼和右眼提供图像。
-
公开(公告)号：US07167286B2
公开(公告)日：2007-01-23
申请号：US11473119
申请日：2006-06-23
IPC分类号： G03H1/30
CPC分类号： G11B7/00772 , G03H1/0248 , G03H1/202 , G03H1/2645 , G03H1/265 , G03H2001/2207 , G03H2001/2255 , G03H2223/21 , G03H2223/54 , G03H2223/55 , G11B7/0065 , G11B7/083
摘要： Disclosed is a multiplexing method and apparatus that allows holograms to be spatially multiplexed with partial spatial overlap between neighboring stacks of holograms. Each individual stack can additionally take full advantage of an alternate multiplexing scheme such as angle, wavelength, phase code, peristrophic, or fractal multiplexing, for example. An amount equal to the beam waist of the signal beam writing a hologram separates individual stacks of holograms. Upon reconstruction, a hologram and its neighbors will all be readout simultaneously. An filter is placed at the beam waist of the reconstructed data such that the neighbors that are read out are not transmitted to the camera plane. Alternatively, these unwanted reconstructions can be filtered out with an angular filter at an intermediate plane in the optical system that has a limited angular passband.
摘要翻译： 公开了一种复用方法和装置，其允许全息图与相邻的全息图堆叠之间的部分空间重叠进行空间复用。 每个单独的堆叠可以另外充分利用诸如角度，波长，相位代码，蠕动状态或分形多路复用的替代多路复用方案。 相当于写入全息图的信号光束的光束腰部的量分离各个全息图。 一旦重建，全息图及其邻居将全部被同时读出。 将滤波器放置在重构数据的波束腰部，使得读出的邻居不发送到相机平面。 或者，这些不需要的重建可以在具有有限角度通带的光学系统中的中间平面处用角度滤波器滤除。
-
公开(公告)号：US20060238841A1
公开(公告)日：2006-10-26
申请号：US11473119
申请日：2006-06-23
申请人： Kenneth Anderson , Kevin Curtis
发明人： Kenneth Anderson , Kevin Curtis
IPC分类号： G03H1/10
CPC分类号： G11B7/00772 , G03H1/0248 , G03H1/202 , G03H1/2645 , G03H1/265 , G03H2001/2207 , G03H2001/2255 , G03H2223/21 , G03H2223/54 , G03H2223/55 , G11B7/0065 , G11B7/083
摘要： Disclosed is a multiplexing method and apparatus that allows holograms to be spatially multiplexed with partial spatial overlap between neighboring stacks of holograms. Each individual stack can additionally take full advantage of an alternate multiplexing scheme such as angle, wavelength, phase code, peristrophic, or fractal multiplexing, for example. An amount equal to the beam waist of the signal beam writing a hologram separates individual stacks of holograms. Upon reconstruction, a hologram and its neighbors will all be readout simultaneously. An filter is placed at the beam waist of the reconstructed data such that the neighbors that are read out are not transmitted to the camera plane. Alternatively, these unwanted reconstructions can be filtered out with an angular filter at an intermediate plane in the optical system that has a limited angular passband.
-
公开(公告)号：US20240160152A1
公开(公告)日：2024-05-16
申请号：US18416480
申请日：2024-01-18
申请人： VividQ Limited
CPC分类号： G03H1/12 , G03H1/02 , G03H1/2205 , G03H1/2645 , G03H2001/0212 , G03H2001/0224 , G03H2001/2207 , G03H2001/2655 , G03H2223/55
摘要： A holographic display system comprises a light source configured to emit at least partially coherent light; a modulator arranged to be illuminated by the at least partially coherent light and to generate a light field which is a quantised representation of a target light field, H; and a spatial filter delimiting an aperture in a Fourier plane. A Fourier transform of the target light field, F(H), substantially does not overlap (i) a Fourier transform of a complex conjugate of the target light field, F(H*), (ii) a Fourier transform of the target light field multiplied by the complex conjugate of the target light field, F(HH*), (iii) a Fourier transform of a square of the target light field, F(H2), and (iv) a Fourier transform of a square of the complex conjugate of the light field F(H*2). The aperture substantially corresponds to F(H) in the Fourier plane.
-
-
-
-
-
-
-
-
-
搜索结果
57 条记录 (耗时 0.019 秒)
