公开(公告)号：US20190196214A1

公开(公告)日：2019-06-27

申请号：US16221107

申请日：2018-12-14

申请人： RealD Inc.

发明人： Miller H. Schuck ,  Michael G. Robinson ,  Gary D. Sharp

IPC分类号： G02B27/26 ,  G02B27/22 ,  G02B26/00 ,  H04N13/341 ,  H04N13/337

摘要： A polarization conversion system separates light from an unpolarized image source into a first state of polarization (SOP) and an orthogonal second SOP, and directs the polarized light on first and second light paths. The SOP of light on only one of the light paths is transformed to an orthogonal state such that both light paths have the same SOP. A polarization modulator temporally modulates the light on the first and second light paths to first and second output states of polarization. First and second projection lenses direct light on the first and second light paths toward a projection screen to form substantially overlapping polarization encoded images. The polarization modulator may be located before or after the projection lenses. The polarization-encoded images may be viewed using eyewear with appropriate polarization filters.

公开(公告)号：US20170285454A1

公开(公告)日：2017-10-05

申请号：US15622926

申请日：2017-06-14

申请人： RealD, Inc.

发明人： Gary D. Sharp ,  Kevin R. Curtis ,  David A. Coleman

IPC分类号： G03B21/56 ,  G02B27/48 ,  G03B21/60 ,  G03B21/606

CPC分类号： G03B21/562 ,  G02B27/48 ,  G03B21/56 ,  G03B21/60 ,  G03B21/606

摘要： A stiffening strip at selected edges of a screen may enable the use and mounting of a high-elastic modulus substrate screen material. Such screen materials may be engineered to provide polarization-preserving characteristics, and be applied to or part of the high-elastic modulus substrate. Furthermore, the stiffening strip may enable the use of screen vibration techniques to reduce speckle in display applications that use projection screens, particularly those display applications using illumination sources prone to speckle such as laser-based projection. The screen vibration may be provided by a vibrating device attached to the stiffening strip.

公开(公告)号：US09350980B2

公开(公告)日：2016-05-24

申请号：US13836443

申请日：2013-03-15

申请人： REALD INC.

发明人： Michael G. Robinson ,  Graham J. Woodgate ,  Jonathan Harrold ,  Gary D. Sharp ,  Miller H. Schuck

IPC分类号： H04N13/04 ,  F21V8/00 ,  G02B27/22

CPC分类号： H04N13/315 ,  G02B6/0048 ,  G02B6/0051 ,  G02B6/0055 ,  G02B6/0068 ,  G02B27/22 ,  H04N13/32

摘要： Disclosed is a light guiding valve apparatus including a light valve, a two dimensional light emitting element array and an input side arranged to reduce light reflection for providing large area directional illumination from localized light emitting elements with low cross talk. A waveguide includes a stepped structure, in which the steps may include extraction features hidden to guided light propagating in a first forward direction. Returning light propagating in a second backward direction may be refracted or reflected by the features to provide discrete illumination beams exiting from the top surface of the waveguide. Stray light falling onto a light input side of the waveguide is at least partially absorbed.

公开(公告)号：US09046755B2

公开(公告)日：2015-06-02

申请号：US14020654

申请日：2013-09-06

申请人： RealD Inc.

发明人： Gary D. Sharp ,  Kevin R. Curtis ,  David A. Coleman

IPC分类号： G03B21/56 ,  G03B21/60 ,  G03B21/606

CPC分类号： G03B21/562 ,  G02B27/48 ,  G03B21/56 ,  G03B21/60 ,  G03B21/606

摘要： A stiffening strip at selected edges of a screen may enable the use and mounting of a high-elastic modulus substrate screen material. Such screen materials may be engineered to provide polarization-preserving characteristics, and be applied to or part of the high-elastic modulus substrate. Furthermore, the stiffening strip may enable the use of screen vibration techniques to reduce speckle in display applications that use projection screens, particularly those display applications using illumination sources prone to speckle such as laser-based projection. The screen vibration may be provided by a vibrating device attached to the stiffening strip.

摘要翻译： 在屏幕的选定边缘处的加强条可以使得能够使用和安装高弹性模量的基底屏幕材料。 这样的筛网材料可以被设计成提供偏振保持特性，并且被施加到高弹性模量基底的一部分上。 此外，加强条可以使用屏幕振动技术来减少使用投影屏幕的显示器应用中的斑点，特别是那些使用容易发生斑点的照明源（例如基于激光的投影）的显示应用。 屏幕振动可以由附接到加强条的振动装置提供。

公开(公告)号：US20140232948A1

公开(公告)日：2014-08-21

申请号：US14166636

申请日：2014-01-28

申请人： RealD Inc.

发明人： Gary D. Sharp ,  Jianmin Chen ,  Michael G. Robinson

IPC分类号： H04N13/04 ,  G02F1/1335

CPC分类号： H04N13/337 ,  G02B27/26 ,  G02F1/133528 ,  G02F1/133634 ,  G02F1/13471 ,  G02F1/1395 ,  G02F2001/133531 ,  G02F2413/11 ,  H04N13/363

摘要： Generally, this disclosure concerns the angle sensitivity of polarization switch elements and the resulting impact of the ray direction on performance. More specifically, apparatus and techniques for compensating the angular sensitivity of liquid crystal (LC) polarization switches are described that enhance the performance of polarization switches. For example, a polarization switch is disclosed that transforms linearly polarized light of an initial polarization orientation that includes a first and second liquid crystal cell with a compensator located between the LC cells. The compensator layer is operable to enhance the field of view through the polarization switch. Such compensation techniques are particularly useful for short-throw projection environments.

摘要翻译： 通常，本公开涉及偏振开关元件的角度灵敏度以及由此导致的射线方向对性能的影响。 更具体地，描述了用于补偿液晶（LC）偏振开关的角灵敏度的装置和技术，其提高了偏振开关的性能。 例如，公开了一种偏振开关，其通过位于LC单元之间的补偿器转换包括第一和第二液晶单元的初始偏振取向的线偏振光。 补偿器层可操作以通过偏振开关增强视场。 这种补偿技术对于短投投影环境特别有用。

公开(公告)号：US20130176407A1

公开(公告)日：2013-07-11

申请号：US13734519

申请日：2013-01-04

申请人： RealD Inc.

发明人： Kevin R. Curtis ,  Gary D. Sharp ,  Miller H. Schuck

IPC分类号： H04N13/04

CPC分类号： H04N13/324 ,  G02B26/101 ,  G02B27/104 ,  G02B27/2214 ,  H04N9/3129 ,  H04N13/363

摘要： Generally, display systems may be employed in cinema and exhibition applications. Laser scanned display systems may be enabled such that the display systems may display three dimensional (“3D”) content. One example of a display system may include a diffusive screen which may be a transmissive diffuser and at least a light engine or an array of light engines, in which the light engine or array of light engines may include at least a light source, beam combining optics which may combine colors into at least one of a single beam or closely spaced beams, and at least a scanning system which may steer the beam to a desired location on the diffusive screen.

摘要翻译： 通常，显示系统可以用于电影和展览应用。 可以启用激光扫描显示系统，使得显示系统可以显示三维（“3D”）内容。 显示系统的一个示例可以包括扩散屏幕，其可以是透射扩散器和至少一个光引擎或光引擎阵列，其中光引擎或光引擎阵列可以包括至少一个光源，光束组合 光学元件可以将颜色组合成单个光束或紧密间隔的光束中的至少一个，以及至少一个扫描系统，其可以将光束转向漫射屏幕上的期望位置。

公开(公告)号：US20190051259A1

公开(公告)日：2019-02-14

申请号：US16044813

申请日：2018-07-25

申请人： RealD Inc.

发明人： Miller H. Schuck ,  Gary D. Sharp ,  Douglas J. McKnight ,  Terry Norton

IPC分类号： G09G3/36 ,  G02F1/1335 ,  G09G3/00 ,  G09G3/34 ,  H04N13/334

摘要： A direct view display provides a light modulating panel and a backlight including first and second sets of spectral emitters. Several modes of operation may be provided including an advanced 2D mode, and an enhanced color gamut mode employing simultaneous illumination of the first and second set of spectral emitters. Another embodiment may be an optical structure for a multi-functional LCD display with wide color gamut and high stereo contrast. The optical structure may also be used to produce more saturated colors for a wider display color gamut and also may be used to produce a brighter backlight structure through light recycling of the wider bandwidth light back into the optical structure.

公开(公告)号：US10203511B2

公开(公告)日：2019-02-12

申请号：US15655693

申请日：2017-07-20

申请人： RealD Inc.

发明人： Miller H. Schuck ,  Michael G. Robinson ,  Gary D. Sharp

IPC分类号： G02B27/26 ,  G02B27/22 ,  H04N9/31 ,  H04N13/337 ,  H04N13/341 ,  G02B26/00 ,  G02B13/00

摘要： A polarization conversion system separates light from an unpolarized image source into a first state of polarization (SOP) and an orthogonal second SOP, and directs the polarized light on first and second light paths. The SOP of light on only one of the light paths is transformed to an orthogonal state such that both light paths have the same SOP. A polarization modulator temporally modulates the light on the first and second light paths to first and second output states of polarization. First and second projection lenses direct light on the first and second light paths toward a projection screen to from substantially overlapping polarization encoded images. The polarization modulator may be located before or after the projection lenses. The polarization-encoded images may be viewed using eyewear with appropriate polarization filters.

公开(公告)号：US20170123221A1

公开(公告)日：2017-05-04

申请号：US15283874

申请日：2016-10-03

申请人： RealD Inc.

发明人： Gary D. Sharp ,  David A. Coleman ,  Jianmin Chen

IPC分类号： G02B27/26 ,  H04N13/04 ,  G02B5/30 ,  G03B35/26 ,  G02F1/1335 ,  G02F1/13363

CPC分类号： G02B27/26 ,  G02B5/3083 ,  G02B27/288 ,  G02F1/133528 ,  G02F1/13363 ,  G02F2001/133638 ,  G02F2413/02 ,  G02F2413/07 ,  G03B21/14 ,  G03B21/206 ,  G03B21/2073 ,  G03B35/26 ,  H04N13/337

摘要： Disclosed embodiments include stereoscopic systems having at least one compensator operable to reduce the sensitivity of polarization control over incidence angle of image source optics and analyzer optics. In an exemplary embodiment, the disclosed compensator is operable to compensate polarization changes induced by optics at either or both the image source subsystem and the analyzer subsystem, in which the polarization changes would be operable to cause leakage at the analyzer subsystem if uncompensated. As such, the disclosed compensators and compensation techniques are operable to reduce leakage at the analyzer subsystem even if the disclosed compensator may be located at the analyzer subsystem.

公开(公告)号：US20160041460A1

公开(公告)日：2016-02-11

申请号：US14621836

申请日：2015-02-13

申请人： RealD Inc.

发明人： Miller H. Schuck ,  Michael G. Robinson ,  Gary D. Sharp

IPC分类号： G03B35/26 ,  G02B27/28 ,  G02B27/22 ,  G03B21/28 ,  G03B35/22

CPC分类号： G03B35/26 ,  G02B27/2264 ,  G02B27/26 ,  G02B27/283 ,  G03B21/142 ,  G03B21/28 ,  G03B35/22 ,  H04N13/341

摘要： The PCS may include a polarizing beam splitter, a polarization rotating element, a reflecting element, and a polarization switch. Typically, a projector outputs randomly-polarized light. This light is input to the PCS, in which the PCS separates p-polarized light and s-polarized light at the polarizing beam splitter. P-polarized light is directed toward the polarization switch on a first path. The s-polarized light is passed on a second path through the polarization rotating element (e.g., a half-wave plate), thereby transforming it to p-polarized light. A reflecting element directs the transformed polarized light (now p-polarized) along the second path toward the polarization switch. The first and second light paths are ultimately directed toward a projection screen to collectively form a brighter screen image in cinematic applications utilizing polarized light for three-dimensional viewing.

摘要翻译： PCS可以包括偏振分束器，偏振旋转元件，反射元件和偏振开关。 通常，投影仪输出随机偏振光。 该光被输入到PCS，其中PCS在偏振分束器处分离p偏振光和s偏振光。 P偏振光在第一路径上被引向偏振开关。 s偏振光在穿过偏振旋转元件（例如半波片）的第二路径上通过，从而将其变换为p偏振光。 反射元件将沿着第二路径的变换的偏振光（现在p偏振光）引向偏振开关。 第一和第二光路最终定向到投影屏幕，以在使用偏振光进行三维观看的电影应用中共同形成更亮的屏幕图像。