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公开(公告)号：EP0847208B1
公开(公告)日：2006-05-31
申请号：EP97309840.3
申请日：1997-12-05
CPC分类号： G02F1/133512 , G02B5/32 , G02B27/2214 , G02F1/133524 , G02F1/133526 , G02F1/1336 , G02F1/133606 , G02F2001/133607 , G03H2001/0439 , G03H2210/22 , G03H2270/54 , H04N13/305 , H04N13/31 , H04N13/312 , H04N13/32 , H04N13/351 , H04N13/359 , H04N13/376
摘要： A directional display comprises a display arrangement such as a spatial light modulator 2 and a rear parallax barrier 6 illuminated by a suitable backlight 1. The spatial light modulator 2 and the parallax barrier 6 cooperate to produce Fresnel diffraction which results in spatially non-uniform brightness across viewing windows of the display. Also, where the spatial light modulator 2 has pixels of non-constant vertical aperture, further variations in the intensity profile at the windows occurs. In order to compensate for this, a mask 21 is provided, for instance between the parallax barrier 6 and the backlight 1. The mask 21 cooperates with the parallax barrier 6 to produce an intensity pattern having variations which are the inverse of the variations in intensity pattern produced by the parallax barrier 6 and the spatial light modulator 2. The variations are superimposed and substantially cancel each other out so as to result in viewing windows which have substantially uniform light intensities.
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公开(公告)号：EP0831353B1
公开(公告)日：2004-08-11
申请号：EP97307295.2
申请日：1997-09-19
CPC分类号： G02B27/26 , H04N13/122 , H04N13/31 , H04N13/32 , H04N13/324 , H04N13/327 , H04N13/337 , H04N13/359 , H04N13/361 , H04N13/363 , H04N13/365 , H04N13/373 , H04N13/376 , H04N13/378 , H04N13/38 , H04N13/398
摘要： A stereoscopic 3D display comprises a light source 2 and condenser optics 4 which direct light through a spatial light modulator 41 and a polarisation modulator 42. Each of the devices 41 and 42 is pixellated with the pixels of one device being optically aligned with respective pixels of the other device. Each pixel of the spatial light modulator 41 is controlled so as to provide a light amplitude which is equal to the square root of the sum of the squares of the corresponding pixels of the stereoscopic images. Each pixel of the polarisation modulator 42 is controlled so as to supply output light with a polarisation angle given by the arc-tangent of the quotient of the pixel amplitudes of the stereoscopic images. Polarising glasses 40 with suitably aligned polariser lenses allow an observer to perceive the 3D effect, for instance on a polarisation preserving screen 1 on which the encoded stereoscopic image is projected by projection optics 8.
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公开(公告)号：EP0752610B1
公开(公告)日：2003-09-10
申请号：EP96304960.6
申请日：1996-07-04
IPC分类号： G02F1/1335 , H04N13/00 , G02B27/22
CPC分类号： G02F1/133512 , G02B27/2214 , G02F1/133514 , G02F2201/52 , H04N13/189 , H04N13/204 , H04N13/286 , H04N13/305 , H04N13/31 , H04N13/324 , H04N13/346 , H04N13/349 , H04N13/361 , H04N13/398
摘要： A liquid crystal spatial light modulator comprises columns and rows of picture elements (24-26). The columns are arranged as groups of columns, for instance under respective parallax generating elements in an autostereoscopic 3D display. The picture elements (24-26) are arranged as sets to form colour picture elements such that the picture elements (24-26) of each set are disposed at the apices of a polygon, such as a triangle (21), and are disposed in corresponding columns of the groups of columns.
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公开(公告)号：EP1085769A3
公开(公告)日：2003-07-30
申请号：EP00307996.9
申请日：2000-09-14
发明人： Montgomery, David James , Woodgate, Graham John , Jones, Graham , Holliman, Nicholas Steven , Lee, Delman
CPC分类号： H04N13/239 , H04N13/111 , H04N13/122 , H04N13/133 , H04N13/15 , H04N13/189 , H04N13/194 , H04N13/211 , H04N13/221 , H04N13/243 , H04N13/246 , H04N13/275 , H04N13/279 , H04N13/286 , H04N13/296 , H04N13/302 , H04N13/324 , H04N13/334 , H04N13/337 , H04N13/339 , H04N13/341 , H04N13/366 , H04N2013/0081 , H04N2013/0088
摘要： A 3D camera comprises at least two detector heads 15 and 16 which are moveable laterally with respect to each other but whose optical axes 17 and 18 are maintained parallel. Each of the detector heads 15, 16 comprises a zoom lens (19, 20) and a detector (21, 22). A user selects the separation between the detector heads 15, 16 and the camera electronics 24 automatically select the field of view by controlling the zoom lenses (19, 20) as a function of the detector head separation.
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5.发明公开A polarisation separation element, a polarisation conversion system, an optical element, and a projection display system 审中-公开偏振光分离元件，polarisationskonvertierendes系统，光学元件和投影显示系统
公开(公告)号：EP1197766A2
公开(公告)日：2002-04-17
申请号：EP01308713.5
申请日：2001-10-12
发明人： Slack, Jason , Khazova, Marina Vladimirovna , Takatsuka, Tamotsu , Mitani, Keisuke, 3715-32, Ooaza , Inoko, Kazuhiro , Woodgate, Graham John , Hara, Masaharu , Bourhill, Grant , Walton, Emma Jane
CPC分类号： H04N9/3167 , G02B5/3083 , G02B27/283 , G02B27/285
摘要： The present invention provides a polarisation separation element comprising a first array of prisms (20) having a wedge-shaped cross-section, and a second array of prisms (21) also having a wedge-shaped cross section. One of the prism arrays is an array of birefringent prisms.
The present invention also provides a polarisation conversion system having a polarisation separation element (16) of the above type for directing light having a first polarisation in a first direction and for directing light having a second polarisation different from the first polarisation in a second direction different from the first direction; and one or more polarisation conversion elements (19a,19b) for converting light having the first and second polarisations to light having a substantially common output polarisation.
The polarisation conversion system of the invention is suitable for use in a projection display system.-
公开(公告)号：EP1085769A2
公开(公告)日：2001-03-21
申请号：EP00307996.9
申请日：2000-09-14
发明人： Montgomery, David James , Woodgate, Graham John , Jones, Graham , Holliman, Nicholas Steven , Lee, Delman
CPC分类号： H04N13/239 , H04N13/111 , H04N13/122 , H04N13/133 , H04N13/15 , H04N13/189 , H04N13/194 , H04N13/211 , H04N13/221 , H04N13/243 , H04N13/246 , H04N13/275 , H04N13/279 , H04N13/286 , H04N13/296 , H04N13/302 , H04N13/324 , H04N13/334 , H04N13/337 , H04N13/339 , H04N13/341 , H04N13/366 , H04N2013/0081 , H04N2013/0088
摘要： A 3D camera comprises at least two detector heads 15 and 16 which are moveable laterally with respect to each other but whose optical axes 17 and 18 are maintained parallel. Each of the detector heads 15, 16 comprises a zoom lens (19, 20) and a detector (21, 22). A user selects the separation between the detector heads 15, 16 and the camera electronics 24 automatically select the field of view by controlling the zoom lenses (19, 20) as a function of the detector head separation.
摘要翻译： 3D照相机包括至少两个检测器头15和16，它们可相对于彼此横向移动，但其光轴17和18保持平行。 每个检测器头15,16包括变焦透镜（19,20）和检测器（21,22）。 用户选择检测器头15,16和照相机电子设备24之间的间隔通过根据检测器头分离来控制变焦透镜（19,20）来自动选择视场。
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公开(公告)号：EP0625861B1
公开(公告)日：2000-09-20
申请号：EP94303636.8
申请日：1994-05-20
发明人： Woodgate, Graham John , Ezra, David
IPC分类号： H04N13/04
CPC分类号： H04N13/31 , G02F1/133514 , H04N13/305 , H04N13/324
摘要： A spatial light modulator 1 of the LCD type comprises picture elements 20, 21 arranged as rows extending horizontally and columns extending vertically. The picture elements are arranged in groups such that the picture elements of each group are substantially contiguous with each other in the horizontal direction. It is thus possible to provide continuous horizontal parallax of the 2D views and an increased number of such 2D views, for instance by converting to directional information by means of a lenticular screen 6.
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8.发明公开Spatial light modulator with horizontally overlapping pixels 失效RäumlicherLichtmodulator mit horizontalüberlappendenBildelementen
公开(公告)号：EP0833184A1
公开(公告)日：1998-04-01
申请号：EP97307610.2
申请日：1997-09-26
CPC分类号： G02B27/2214 , G02F1/134336 , H04N13/204 , H04N13/286 , H04N13/305 , H04N13/31 , H04N13/322 , H04N13/324 , H04N13/332 , H04N13/349 , H04N13/373 , H04N13/376
摘要： A spatial light modulator comprises a plurality of picture elements arranged as rows and columns. The columns are arranged as adjacent groups, for instance for association with an element of a parallax device to provide an autostereoscopic 3D display. Adjacent picture elements disclosed in each row and in adjacent columns of each group overlap horizontally so that there are overlapping regions (13) and non-overlapping regions (12). The vertical extent of each picture element is substantially constant throughout the non-overlapping region (12) and is substantially equal to the sum of the heights of the adjacent picture elements throughout the overlapping regions (13). The overlapping regions may be of right-angled triangular shape.
摘要翻译： 空间光调制器包括排列成行和列的多个图像元素。 列被布置为相邻组，例如用于与视差设备的元件相关联以提供自动立体3D显示。 公开在每个组中的相邻列和相邻列中的相邻图像元素水平重叠，使得存在重叠区域（13）和非重叠区域（12）。 每个像素的垂直范围在整个非重叠区域（12）中基本上是恒定的，并且基本上等于相邻像素在整个重叠区域（13）中的高度之和。 重叠区域可以是直角三角形形状。
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公开(公告)号：EP0752610A3
公开(公告)日：1998-01-07
申请号：EP96304960.6
申请日：1996-07-04
IPC分类号： G02F1/1335 , H04N13/00 , G02B27/22
CPC分类号： G02F1/133512 , G02B27/2214 , G02F1/133514 , G02F2201/52 , H04N13/189 , H04N13/204 , H04N13/286 , H04N13/305 , H04N13/31 , H04N13/324 , H04N13/346 , H04N13/349 , H04N13/361 , H04N13/398
摘要： A liquid crystal spatial light modulator comprises columns and rows of picture elements (24-26). The columns are arranged as groups of columns, for instance under respective parallax generating elements in an autostereoscopic 3D display. The picture elements (24-26) are arranged as sets to form colour picture elements such that the picture elements (24-26) of each set are disposed at the apices of a polygon, such as a triangle (21), and are disposed in corresponding columns of the groups of columns.
摘要翻译： 液晶空间光调制器包括列和行像素（24-26）。 列被布置为列组，例如在自动立体3D显示器中的各个视差生成元件下。 图像元素（24-26）被排列成组以形成彩色图像元素，使得每一组图像元素（24-26）被设置在诸如三角形（21）的多边形的顶点处，并且被设置 在列组的相应列中。
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10.发明公开Observer tracking autostereoscopic display and method of tracking an observer 失效Autostereoskopische Anzeigevorrichtung mit Benutzerspurfolgesystem und Benutzerspurfolgeverfahren
公开(公告)号：EP0721131A2
公开(公告)日：1996-07-10
申请号：EP95309516.3
申请日：1995-12-29
CPC分类号： G02B27/0093 , H04N13/117 , H04N13/156 , H04N13/158 , H04N13/189 , H04N13/286 , H04N13/305 , H04N13/31 , H04N13/32 , H04N13/324 , H04N13/327 , H04N13/346 , H04N13/349 , H04N13/359 , H04N13/368 , H04N13/373 , H04N13/376 , H04N13/398
摘要： An observer tracking display is provided in which the image data displayed by at least three display devices (30, 32) along respective different directions is divided depending on the position of an observer. Each eye of the observer can see only some regions (L1, L2, L3, R1, R2, R3) of the display devices (30, 32). The positions and sizes of those regions are calculated for the position of the observer and the display devices (30, 32) are then controlled such that the observer's left eye only receives left view data and the observer's right eye only receives right eye view data.
摘要翻译： 提供了一种观察者跟踪显示器，其中由至少三个显示设备（30,32）沿着不同方向显示的图像数据根据观察者的位置被划分。 观察者的每只眼睛只能看到显示装置（30,32）的一些区域（L1，L2，L3，R1，R2，R3）。 对于观察者的位置计算那些区域的位置和大小，然后控制显示装置（30,32），使得观察者的左眼仅接收左视图数据，并且观察者的右眼仅接收右眼视图数据。
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