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1. 发明授权

US06317228B2 Holographic illumination system 有权
公开(公告)号：US06317228B2
公开(公告)日：2001-11-13
申请号：US09805817
申请日：2001-03-14
申请人： Milan M. Popovich , Jonathan D. Waldern , John J. Storey
发明人： Milan M. Popovich , Jonathan D. Waldern , John J. Storey
IPC分类号： G02B532
CPC分类号： G02F1/133621 , G02B5/32 , G02F1/13342
摘要： Disclosed is an apparatus and method of illuminating an image display via an electrically switchable holographic optical element. The method includes a first electrically switchable holographic optical element (ESHOE) receiving illumination light. The first ESHOE comprises oppositely facing front and back surfaces. The first ESHOE diffracts a first component (e.g., p-polarized blue light) of the illumination light while transmitting the remaining components of the illumination light without substantial alteration. An image display is provided and receives the diffracted first component. In response to receiving the diffracted first component, the image display emits image light. The first ESHOE receives and transmits this image light without substantial alteration. In one embodiment, the diffracted first component emerges from the first ESHOE at the back surface thereof, and the first ESHOE receives the image light at the back surface thereof so that the image light is received by the first ESHOE in a direction substantially parallel to a direction at which the diffracted first component emerges from the back surface of the first ESHOE.

2. 发明授权

US6115152A Holographic illumination system 失效
标题翻译：全息照明系统
公开(公告)号：US6115152A
公开(公告)日：2000-09-05
申请号：US395889
申请日：1999-09-14
申请人： Milan M. Popovich , Jonathan D. Waldern , John J. Storey
发明人： Milan M. Popovich , Jonathan D. Waldern , John J. Storey
IPC分类号： G02B5/32 , G02F1/13 , G02F1/1334 , G02F1/1335 , G02F1/13357 , G02F1/1347 , G02F1/29 , G03B21/14 , G03H1/26
CPC分类号： G02F1/133621 , G02B5/32 , G02F1/13342 , G02F1/292 , G03H1/26 , G02F1/13473 , G02F2001/133622 , G02F2001/291 , G02F2201/346
摘要： Holographic optical elements (HOEs) can be used in systems and methods for providing illumination and for projecting images. The HOEs may be switchable HOEs, whose diffractive properties can be controlled. Described herein is a method of combining light from two or more illumination sources. In one embodiment, a reflection-type HOE is illuminated by the first illumination source. The HOE diffracts light from the first illumination source into an output direction. Light from the second illumination source is transmitted through the HOE and onto a reflective optical element, which reflects the light back through the HOE and into the same output direction. Also described is a projection system that uses two or more HOEs to combine two or more colors of light for use by a single image display. The system includes one or more light sources, an image display (such as a reflective or transmissive LCD display or a MEMS display, for example), and a first and a second HOE. The HOEs are each mounted between a light source and the image display, and configured to provide one color of light to the image display and from the image display into an output direction. In one embodiment, the HOEs are switchable HOEs and can be used for color-sequential display and/or for color balancing.
摘要翻译：全息光学元件（HOE）可用于提供照明和投影图像的系统和方法中。 HOE可以是可切换的HOE，其可以控制其衍射性质。这里描述的是组合来自两个或更多个照明源的光的方法。在一个实施例中，反射型HOE由第一照明光源照亮。 HOE将来自第一照明源的光衍射成输出方向。来自第二照明源的光通过HOE透射到反射光学元件上，反射光学元件将光反射通过HOE并进入相同的输出方向。还描述了一种投影系统，其使用两个或更多个HOE来组合用于单个图像显示器的两种或更多种颜色的光。该系统包括一个或多个光源，图像显示器（例如反射或透射LCD显示器或MEMS显示器），以及第一和第二HOE。 HOE各自安装在光源和图像显示器之间，并且被配置为向图像显示器提供一种颜色的光并且将图像显示器从图像显示器提供到输出方向。在一个实施例中，HOE是可切换的HOE，并且可以用于颜色顺序显示和/或用于颜色平衡。

3. 发明授权

US06646772B1 Holographic illumination system 失效
标题翻译：全息照明系统
公开(公告)号：US06646772B1
公开(公告)日：2003-11-11
申请号：US10054319
申请日：2001-11-13
申请人： Milan M. Popovich , Jonathan D. Waldern , John J. Storey
发明人： Milan M. Popovich , Jonathan D. Waldern , John J. Storey
IPC分类号： G02B532
CPC分类号： G02F1/133621 , G02B5/32 , G02F1/13342
摘要： Disclosed is an apparatus and method of illuminating an image display via an electrically switchable holographic optical element. The method includes a first electrically switchable holographic optical element (ESHOE) receiving illumination light. The first ESHOE comprises oppositely facing front and back surfaces. The first ESHOE focuses a first component (e.g., p-polarized blue light) of the illumination light while transmitting the remaining components of the illumination light without substantial alteration. An image display is provided and receives the focused first component. In response to receiving the focused first component, the image display emits image light. The first ESHOE receives and transmits this image light without substantial alteration. In one embodiment, the focused first component emerges from the first ESHOE at the back surface thereof, and the first ESHOE receives the image light at the back surface.
摘要翻译：公开了一种通过电可切换全息光学元件照亮图像显示的装置和方法。该方法包括接收照明光的第一电可开关全息光学元件（ESHOE）。第一个ESHOE包括相反的前后表面。第一ESHOE聚焦照明光的第一分量（例如，p偏振蓝光），同时透射照明光的剩余分量而没有实质的改变。提供图像显示并接收聚焦的第一分量。响应于接收到聚焦的第一分量，图像显示器发射图像光。第一个ESHOE接收并传输这种图像光，而不会有实质的改变。在一个实施例中，聚焦的第一部件在其后表面处从第一ESHOE出现，并且第一ESHOE在后表面处接收图像光。

4. 发明授权

US06507419B1 Illumination system using optical feedback 失效
标题翻译：照明系统采用光学反馈
公开(公告)号：US06507419B1
公开(公告)日：2003-01-14
申请号：US09533608
申请日：2000-03-23
申请人： Milan M. Popovich , John J. Storey , Michael R. Adams , C. David Nabors , Jonathan D. Waldern
发明人： Milan M. Popovich , John J. Storey , Michael R. Adams , C. David Nabors , Jonathan D. Waldern
IPC分类号： G02B532
CPC分类号： G02B5/32 , G02F1/13318 , G02F1/13342
摘要： Disclosed is an illumination system using optical feedback to maintain a predetermined illumination output. The illumination system employs an electrically controllable optical filter for filtering light incident thereon. The illumination system also includes a light detector for detecting at least a portion of the light filtered by the electrically controllable optical filter. The light detector is in data communication with the electrically controllable optical filter. Some or all light filtered by the electrically controllable optical filter is detected by the light detector, which, in turn generates a corresponding signal that is compared to at least one predetermined value. If the signal generated by the light detector differs when compared to the at least one predetermined value, one or more filtering characteristics of electrically controllable optical filter are varied which, in turn, varies the amount of light filtered by the electrically controllable optical filter. The filtering characteristics of the electrically controllable optical filter continue to be varied until the signal generated by the light etector substantially matches the at least one predetermined value.
摘要翻译：公开了一种使用光学反馈维持预定照明输出的照明系统。照明系统采用电可控滤光器来过滤入射到其上的光。照明系统还包括用于检测由电可控滤光器滤波的光的至少一部分的光检测器。光检测器与电可控光学滤波器进行数据通信。由光可控光滤波器滤波的一些或全部光由光检测器检测，光检测器又产生与至少一个预定值进行比较的对应信号。如果与至少一个预定值相比，由光检测器产生的信号不同，则电可控滤光器的一个或多个滤波特性被改变，这进而改变由电可控滤光器滤波的光量。继续改变电可控光学滤波器的滤波特性，直到由光检测器产生的信号基本上与至少一个预定值相匹配。

5. 发明授权

US06175431B1 Projection systems based on reconfigurable holographic optics 失效
标题翻译：基于可重构全息光学的投影系统
公开(公告)号：US06175431B1
公开(公告)日：2001-01-16
申请号：US09351412
申请日：1999-07-09
申请人： Jonathan D. Waldern , Milan M. Popovich , John J. Storey
发明人： Jonathan D. Waldern , Milan M. Popovich , John J. Storey
IPC分类号： G02B518
CPC分类号： G02B5/32 , H04N5/7441
摘要： A projection system and a method of displaying a projected input image on a projection screen of the system utilize one or more reconfigurable holographic optical elements (HOEs) to optically manipulate propagating light in the system. The reconfigurable HOEs may be configured to perform simple optical functions that are commonly associated with traditional optical devices, such as lenses, prisms and mirrors. However, the reconfigurable HOEs may also be configured to perform sophisticated optical manipulations, such as varying the light intensity toward a specific direction and generating virtual (holographic) images. Each reconfigurable HOE includes a hologram that is sandwiched between two electrode layers. The hologram is a holographic photopolymeric film that has been combined with liquid crystal. The hologram has an optical property that changes in response to an applied electrical field. The reconfigurable HOEs may be included in a color filter of the system to selectively diffract tristimulus color lights to a display panel in order to provide a color display of the input image that is projected onto the projection screen. The reconfigurable HOEs may also be included in a projection optics to magnify the projected image on the projection screen and/or redirect the projected image to form a tiled image on the projection screen. Furthermore, the reconfigurable HOEs may be used in the projection screen to vary the light intensity toward specific viewing positions. In one application, the reconfigurable HOEs in the projection screen allow the system to present the display image in a stereoscopic form.
摘要翻译：投影系统和在系统的投影屏幕上显示投影的输入图像的方法利用一个或多个可重构全息光学元件（HOE）来光学操纵系统中的传播光。可重构HOE可以被配置为执行通常与诸如透镜，棱镜和反射镜的传统光学装置相关联的简单光学功能。然而，可重新配置的HOE还可以被配置为执行复杂的光学操作，诸如朝着特定方向改变光强度并产生虚拟（全息）图像。每个可重新配置的HOE包括夹在两个电极层之间的全息图。全息图是已经与液晶结合的全息光聚合物膜。全息图具有响应于所施加的电场而改变的光学特性。可重新配置的HOE可以被包括在系统的滤色器中以选择性地将三色彩色光衍射到显示面板，以便提供投射到投影屏幕上的输入图像的彩色显示。可重新配置的HOE也可以被包括在投影光学器件中以放大投影屏幕上的投影图像和/或重定向投影图像以在投影屏幕上形成平铺图像。此外，可重构的HOE可以用在投影屏幕中以将光强度改变到特定的观看位置。在一个应用中，投影屏幕中的可重新配置的HOE允许系统以立体形式呈现显示图像。

6. 发明授权

US06211976B1 Holographic projection system 失效
标题翻译：全息投影系统
公开(公告)号：US06211976B1
公开(公告)日：2001-04-03
申请号：US09607432
申请日：2000-06-30
申请人： Milan M. Popovich , Jonathan D. Waldern , John J. Storey
发明人： Milan M. Popovich , Jonathan D. Waldern , John J. Storey
IPC分类号： G02B532
CPC分类号： G02F1/133621 , G02B5/32 , G02F1/13342 , G02F1/13473 , G02F1/292 , G02F2001/133622 , G02F2001/291 , G02F2201/346 , G03H1/26
摘要： Holographic optical elements (HOEs) can be used in systems and methods for providing illumination and for projecting images. The HOEs may be switchable HOEs, whose diffractive properties can be controlled. Described herein is a method of combining light from two or more illumination sources. In one embodiment, a reflection-type HOE is illuminated by the first illumination source. The HOE diffracts light from the first illumination source into an output direction. Light from the second illumination source is transmitted through the HOE and onto a reflective optical element, which reflects the light back through the HOE and into the same output direction. Also described is a projection system that uses two or more HOEs to combine two or more colors of light for use by a single image display. The system includes one or more light sources, an image display (such as a reflective or transmissive LCD display or a MEMS display, for example), and a first and a second HOE. The HOEs are each mounted between a light source and the image display, and configured to provide one color of light to the image display and from the image display into an output direction. In one embodiment, the HOEs are switchable HOEs and can be used for color-sequential display and/or for color balancing.
摘要翻译：全息光学元件（HOE）可用于提供照明和投影图像的系统和方法中。 HOE可以是可切换的HOE，其可以控制其衍射性质。这里描述的是组合来自两个或更多个照明源的光的方法。在一个实施例中，反射型HOE由第一照明光源照亮。 HOE将来自第一照明源的光衍射成输出方向。来自第二照明源的光通过HOE透射到反射光学元件上，反射光学元件将光反射通过HOE并进入相同的输出方向。还描述了一种投影系统，其使用两个或更多个HOE来组合用于单个图像显示器的两种或更多种颜色的光。该系统包括一个或多个光源，图像显示器（例如反射或透射LCD显示器或MEMS显示器），以及第一和第二HOE。 HOE各自安装在光源和图像显示器之间，并且被配置为向图像显示器提供一种颜色的光并且将图像显示器从图像显示器提供到输出方向。在一个实施例中，HOE是可切换的HOE，并且可以用于颜色顺序显示和/或用于颜色平衡。

7. 发明授权

US06525847B2 Three dimensional projection systems based on switchable holographic optics 失效
标题翻译：基于可切换全息光学的三维投影系统
公开(公告)号：US06525847B2
公开(公告)日：2003-02-25
申请号：US09768088
申请日：2001-01-23
申请人： Milan M. Popovich , Jonathan D. Waldern
发明人： Milan M. Popovich , Jonathan D. Waldern
IPC分类号： G02B532
CPC分类号： G02B5/32 , G02B27/2278 , G02F1/1334 , G02F1/13342 , G02F2201/305
摘要： Switchable holographic optical elements (HOEs) can used in systems and methods for projecting three-dimensional images, or for projecting two-dimensional tiled images with increased size and/or resolution. One of the methods may include sequentially displaying first, second, and third color components of a first two-dimensional image at an object plane. The first two dimensional image represents a first slice of a three-dimensional image. As the first, second, and third color components are displayed, first, second and third HOEs may be activated so that the activated first switchable HOE focuses the first color component of the first two-dimensional image onto a first image plane, the activated second switchable HOE focuses the second color component of the first two-dimensional image onto the first image plane, and the wherein the activated third switchable HOE focuses the third color component of the first two-dimensional image onto the first image plane. It is noted that the first, second, and third HOEs may be activated concurrently or sequentially with the display of the first, second, or third color components of the first two-dimensional image. After the first, second, and third color components are displayed, the first, second and third switchable HOEs are deactivated. Then, first, second, and third color components of a second two-dimensional image are sequentially displayed. The second two-dimensional image represents a second slice of the three-dimensional image. A fourth switchable HOE may be activated to focus the first color component of the second two-dimensional image onto a second image plane. The second image plane is adjacent to the first image plane.
摘要翻译：可切换全息光学元件（HOE）可用于投影三维图像的系统和方法，或用于投影尺寸和/或分辨率增大的二维平铺图像。方法之一可以包括在物平面处顺序地显示第一二维图像的第一，第二和第三颜色分量。第一二维图像表示三维图像的第一切片。当显示第一，第二和第三颜色分量时，可以激活第一，第二和第三HOE，使得激活的第一可切换HOE将第一二维图像的第一颜色分量聚焦到第一图像平面上，激活的第二可切换HOE将第一二维图像的第二颜色分量聚焦到第一图像平面上，其中激活的第三可切换HOE将第一二维图像的第三颜色分量聚焦到第一图像平面上。注意，第一，第二和第三HOE可以与第一二维图像的第一，第二或第三颜色分量的显示同时或顺序地激活。在显示第一，第二和第三颜色分量之后，第一，第二和第三可切换HOE被去激活。然后，依次显示第二二维图像的第一，第二和第三颜色分量。第二二维图像表示三维图像的第二切片。可以激活第四可切换HOE以将第二二维图像的第一颜色分量聚焦到第二图像平面上。第二图像平面与第一图像平面相邻。

8. 发明授权

US06426811B1 Switchable holographic optical system 失效
标题翻译：可切换全息光学系统
公开(公告)号：US06426811B1
公开(公告)日：2002-07-30
申请号：US09366443
申请日：1999-08-03
申请人： Milan M. Popovich , Michael R. Adams , Jonathan D. Waldern
发明人： Milan M. Popovich , Michael R. Adams , Jonathan D. Waldern
IPC分类号： G02B532
CPC分类号： G02F1/13476 , G02B5/32 , G02F2001/13345 , G02F2001/133627 , G02F2201/307
摘要： An optical system and an imaging and display system using the optical system. The optical system has at least first and second optical elements aligned on a common axis. In one embodiment, each of the first and second optical elements can operate in an active state or in inactive state and comprise a photopolymer and liquid crystal combination. Each of the first and second optical elements is configured to transmit incident light substantially unaltered when each of the first and second optical elements operates in the inactive state. In the active state, however, each of the first and second optical elements does not transmit incident light substantially unaltered. Rather each of the first and second optical elements substantially alters light incident thereon when each of the first and second optical elements operates in the active state.
摘要翻译：一种使用光学系统的光学系统和成像和显示系统。光学系统具有至少第一和第二光学元件在公共轴线上对准。在一个实施例中，第一和第二光学元件中的每一个可以处于活动状态或处于非活动状态，并且包括光聚合物和液晶组合。第一和第二光学元件中的每一个被配置为当第一和第二光学元件中的每一个在非活动状态下工作时，基本上不改变透射入射光。然而，在激活状态下，第一和第二光学元件中的每一个不会基本上不改变入射光。相反，当第一和第二光学元件中的每一个在活动状态下工作时，第一和第二光学元件中的每一个基本上改变入射到其上的光。

9. 发明授权

US06373603B1 Image generating system including compensation for chromatic dispersion 失效
标题翻译：图像发生系统包括色散补偿
公开(公告)号：US06373603B1
公开(公告)日：2002-04-16
申请号：US09593721
申请日：2000-06-13
申请人： Milan M. Popovich , Jonathan D. Waldern
发明人： Milan M. Popovich , Jonathan D. Waldern
IPC分类号： G02B532
CPC分类号： H04N9/3117 , G02B5/32 , G03H1/26
摘要： A system and method for generating a system are disclosed. The system includes a display device comprising a plurality of display regions, each region configured for displaying a color component of the image. A display controller is coupled to the display device and is operable to activate the regions of the display device to display portions of the image. A plurality of light directing devices are positioned to receive light from regions of the display device and direct light towards an image plane. The system further includes a light directing controller coupled to the light directing devices to direct light received thereby to different areas of the image plane. The areas of the image plane generally correspond to the different portions of the image displayed by the regions of the display device. The display controller and light directing controller are coupled together such that the light directing devices direct light to the area of the image plane corresponding to the portion of the image displayed by the region of the display device.
摘要翻译：公开了一种用于产生系统的系统和方法。该系统包括包括多个显示区域的显示设备，每个区域被配置用于显示图像的颜色分量。显示控制器耦合到显示设备，并且可操作以激活显示设备的区域以显示图像的部分。多个光引导装置被定位成从显示装置的区域接收光，并将光直射到图像平面。该系统还包括耦合到光导装置的光引导控制器，以将由此接收的光引导到图像平面的不同区域。图像平面的区域通常对应于由显示装置的区域显示的图像的不同部分。显示控制器和光引导控制器耦合在一起，使得光引导装置将光引导到与由显示装置的区域显示的图像的部分相对应的图像平面的区域。

10. 发明授权

US06687030B2 Method and apparatus for illuminating a display 失效
标题翻译：用于照亮显示器的方法和装置
公开(公告)号：US06687030B2
公开(公告)日：2004-02-03
申请号：US10337931
申请日：2003-01-07
申请人： Milan M. Popovich , Jonathan D. Waldern
发明人： Milan M. Popovich , Jonathan D. Waldern
IPC分类号： G03H126
CPC分类号： G02B5/32
摘要： Disclosed is a device for producing colored light and an image generating apparatus including such a device. The device includes a switchable light-directing apparatus configured to receive light and a first control circuit coupled to the switchable light-directing apparatus. The first control circuit provides control signals to the switchable light-directing apparatus. In response to the switchable light-directing apparatus receiving a control signal, the switchable light-directing apparatus directs a first portion of the received light to a first region of a plane. Additionally, the switchable light-directing apparatus directs a second portion of the received light to a second region of the plane, and directs a third portion of the received light to a third region of the plane. The second region is positioned between the first and third regions of the plane.
摘要翻译：公开了一种用于制造彩色光的装置和包括这种装置的图像产生装置。该装置包括被配置为接收光的可切换光引导装置和耦合到可切换导光装置的第一控制电路。第一控制电路向可切换的光引导装置提供控制信号。响应于可切换导光装置接收到控制信号，可切换导光装置将接收的光的第一部分引导到平面的第一区域。另外，可切换导光装置将接收的光的第二部分引导到平面的第二区域，并将接收的光的第三部分引导到平面的第三区域。第二区域位于平面的第一和第三区域之间。

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