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    • 11. 发明申请
    • OPTICAL SYSTEM FOR 3-DIMENSIONAL DISPLAY
    • 用于三维显示的光学系统
    • WO2007069099A3
    • 2007-09-27
    • PCT/IB2006053947
    • 2006-10-26
    • KONINKL PHILIPS ELECTRONICS NVREDERT PETER-ANDREKRIJN MARCELLINUS P C M
    • REDERT PETER-ANDREKRIJN MARCELLINUS P C M
    • G02B27/22G02B3/14H04N13/00
    • G02B27/2214G02B3/14G02B26/005H04N13/0402H04N13/0404H04N13/0406H04N13/042H04N13/0497
    • An optical system that can add an optical depth information to a two- dimensional image (72) represented by substantially collimated light, e.g. by using a collimated light source in front of a LCD display. The optical system includes a first array of optical lenses (70) arranged at a first distance in front of the two-dimensional image (72), and a second array of optical lenses (71) arranged at a second distance in front of the two- dimensional image (72), the second distance being larger than the first distance. Optical properties, e.g. focal length, can be adjusted for the optical lenses of the first and second array of optical lenses (70, 71) in response to the optical depth information. The optical system can serve as an optical front for 3D multiview displays. Depending on embodiment, both horizontal and vertical angular resolution can be obtained, and the front end exhibits only a small brightness loss. Preferably one lens per pixel is used in case of a pixelized image. In one embodiment, a stack of several arrays of on/off switchab Ie optical lenses are arranged at different distances in front of the two-dimensional image, wherein a depth is applied by turning on one lens corresponding to the desired depth distance. In another preferred embodiment two arrays of continuously adjustable lenses are used to generate a depth by adjusting the lenses so as to provide an apparent position in between the two arrays. Preferably, a diffusor is positioned in front of the second array of lenses. Different shapes of lenses may be used such as spherical lenses, lenticular lenses, Fresnel type lenses or "horse- saddle" shaped lenses. The arrays of lenses may be implemented using GRIN lenses or fluid- focus lenses. Preferably, the lenses of each array of lenses are individually adjustable.
    • 一种光学系统,其可以将光学深度信息添加到由基本上准直的光(例如,二维)表示的二维图像(72)。 通过在LCD显示器前面使用准直光源。 该光学系统包括在二维图像(72)的前面以第一距离排列的第一光学透镜阵列(70),以及第二阵列的光学透镜(71),其布置在两个前面的第二距离处 - 尺寸图像(72),所述第二距离大于所述第一距离。 光学性质,例如 可以根据光学深度信息调整第一和第二光学透镜阵列(70,71)的光学透镜的焦距。 该光学系统可以作为3D多视图显示器的光学前端。 根据实施例,可以获得水平和垂直角分辨率,并且前端仅表现出小的亮度损失。 在像素化图像的情况下,优选使用每像素一个透镜。 在一个实施例中,在二维图像之前的不同距离处布置了多个开/关切换器Ie光学透镜阵列的堆叠,其中通过打开与所需深度距离相对应的一个透镜来施加深度。 在另一个优选实施例中,通过调整透镜来使用两个连续可调透镜阵列来产生深度,从而在两个阵列之间提供明显的位置。 优选地,扩散器位于第二阵列阵列的前面。 可以使用不同形状的透镜,例如球面透镜,双凸透镜,菲涅尔型透镜或“马鞍”形透镜。 透镜阵列可以使用GRIN透镜或流体对焦透镜来实现。 优选地,每个透镜阵列的透镜可单独调节。
    • 19. 发明申请
    • THREE-DIMENSIONAL IMAGE DISPLAY WITH DIRECTIONALLY MODULATED PIXELS
    • 具有方向调制像素的三维图像显示
    • WO0199402A8
    • 2002-09-06
    • PCT/US0114942
    • 2001-05-09
    • GELSEY ANDREW H
    • GELSEY ANDREW H
    • G02B27/22G09G3/00H04N13/00H04N5/89
    • H04N13/0406G02B27/2228G09G3/001H04N13/0402H04N13/0445H04N13/0497
    • A three-dimensional image display system (12) includes an array of directionally-modulated pixels or light emitting picture elements DMPs (14). Each directionally-modulated pixel DMP (14) emits light which is modulated in a manner that is not uniform in all directions, to ensure that the light emitted in each included direction is appropriate for the scene being displayed. In this manner, observers (1, 2) viewing the scene from various positions see a scene generated by the image display device IDD (10) that closely simulates the three-dimensional attributes of the real objects (4, 6, 8) located in the real scene being reproduced. In one embodiment of the invention, each directionally modulated pixel (14) expressed in terms of a modulation region (16), is provided by locating a point source of light (15) behind a microminature array of liquid crystal device (LCD) elements (18), each of which are operated by a control device (54) programmed to vary the light transmission characteristics of each element (18) at a given time for passing light through that element (18) in a manner modulating the light to reproduce the intensity of the light representative of substantially the same intensity of light emitted from the actual scene at the same coordinate position.
    • 三维图像显示系统(12)包括定向调制像素阵列或发光像素DMP(14)。 每个定向调制像素DMP(14)发射以不均匀的方式被调制的光,以确保在每个包括的方向上发射的光适合于正在显示的场景。 以这种方式,从各种位置观看场景的观察者(1,2)可以看到由图像显示装置IDD(10)生成的场景,其紧密地模拟位于该位置的实际物体(4,6,8)的三维属性 正在复制的真实场景。 在本发明的一个实施例中,以调制区域(16)表示的每个定向调制像素(14)通过将点光源(15)定位在液晶装置(LCD)元件的微观阵列之后 18),其中的每一个由控制装置(54)操作,该控制装置被编程为在给定时间改变每个元件(18)的光透射特性,以使光以调制光的方式通过该元件(18),从而再现 光的强度代表在相同坐标位置处从实际场景发射的基本相同强度的光。