公开(公告)号：US08540372B2

公开(公告)日：2013-09-24

申请号：US13710356

申请日：2012-12-10

Applicant: Reald, Inc.

Inventor： David A. Coleman ,  Miller H. Schuck ,  Gary D. Sharp

IPC: G03B21/14

CPC classification number: G02B27/26 ,  G02B27/283 ,  G03B21/14 ,  G03B35/20 ,  G03B35/26 ,  H04N13/363

Abstract: Three dimensional projection systems may be single projector or multiple projector systems. These 3D projection systems may include a one or more polarization conversion systems (PCS). Each PCS may be designed for relatively small throw ratios and thus, may be designed to accommodate the small throw ratios. Each PCS may include a polarizing beam splitter, a first optical stack, a reflector and a second quarter wave retarder. The first optical stack may include a rotator, a polarizer, a polarization switch and a first quarter wave retarder. Each PCS may receive light from a respective projector, and the PBS in each PCS may direct the light toward the first optical stacks. The light may be converted to a different polarization state as it passes through the first optical stack. The converted light may then be re-directed by a reflecting element to a second quarter wave retarder. The second quarter wave retarder may convert linearly polarized light to circularly polarized light.

公开(公告)号：US09618765B2

公开(公告)日：2017-04-11

申请号：US14919576

申请日：2015-10-21

Applicant: RealD Inc.

Inventor： Gary D. Sharp ,  Scott Gilman ,  David A. Coleman

IPC: G02F1/1335 ,  G02B27/26 ,  G02F1/01 ,  G02F1/1347

CPC classification number: G02B27/26 ,  G02B27/283 ,  G02F1/0136 ,  G02F1/13306 ,  G02F1/133382 ,  G02F1/133385 ,  G02F1/133528 ,  G02F1/13471 ,  G02F2201/36 ,  G02F2201/38 ,  G02F2413/11 ,  H04N13/337 ,  H04N13/341

Abstract: Liquid crystal devices are described that maintain performance of polarization/amplitude modulation under high irradiance conditions. Configurations that isolate polarizing elements under high thermal load are discussed which allow other elements, such as glass, which may be sensitive to stress birefringence to remain near optimum thermal conditions.

公开(公告)号：US09459463B2

公开(公告)日：2016-10-04

申请号：US14508945

申请日：2014-10-07

Applicant: RealD Inc.

Inventor： Gary D. Sharp ,  David A. Coleman ,  Jianmin Chen

IPC: G03B35/20 ,  G02B27/26 ,  G02B27/28 ,  H04N13/04 ,  G02F1/1335 ,  G02F1/13363 ,  G03B21/14 ,  G03B21/20 ,  G03B35/26 ,  G02B5/30

CPC classification number: 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

Abstract: 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：US09383590B2

公开(公告)日：2016-07-05

申请号：US14301129

申请日：2014-06-10

Applicant: RealD Inc.

Inventor： Gary D. Sharp ,  David A. Coleman

IPC: G02C7/12 ,  G02B27/26 ,  G02C7/16 ,  G02B1/11 ,  G02C13/00

CPC classification number: G02B27/26 ,  G02B1/11 ,  G02C7/16 ,  G02C13/001 ,  Y10T29/31

Abstract: Disclosed embodiments relate to eyewear configured to reduce stray light. An exemplary embodiment of the eyewear accounts for various design factors, including the cross sectional profile of the rim, the micro topography of the rim surface, the reflectivity, the theater or room geometry, proximity of the eye to the lens, lens size, and the screen gain. An exemplary eyewear includes lenses connected to the rims of a frame, and a path may be defined through a maximum height of the outer flange portion of a rim and a maximum height of the inner flange portion of the rim section. The path may be inclined at an angle relative to an angle α relative to a longitudinal axis defined by the lenses.

Abstract translation: 公开的实施例涉及配置为减少杂散光的眼镜。 眼镜的示例性实施例涉及各种设计因素，包括边缘的横截面轮廓，轮缘表面的微观形貌，反射率，剧院或房间几何形状，眼睛与镜片的接近度，镜片尺寸和 屏幕增益。 示例性的眼镜包括连接到框架的边缘的透镜，并且可以通过边缘的外凸缘部分的最大高度和边缘部分的内凸缘部分的最大高度限定路径。 路径可以相对于由透镜限定的纵向轴线相对于角度α成一定角度倾斜。

公开(公告)号：US20160187667A1

公开(公告)日：2016-06-30

申请号：US14803859

申请日：2015-07-20

Applicant: RealD Inc.

Inventor： Kevin Curtis ,  David A. Coleman ,  Gary D. Sharp

IPC: G02B27/48 ,  G03B31/00 ,  G03B21/56

CPC classification number: G02B27/48 ,  G03B21/56 ,  G03B21/562 ,  G03B31/00

Abstract: Disclosed herein are systems and related methods for reducing speckle on display screen. More specifically, screen vibration is used to reduce speckle, and in accordance with the disclosed principles, the vibration may be achieved by using wave-based actuation (e.g., acoustic or electromagnetic waves) to vibrate the screen. In an exemplary embodiment, a speckle reducing system may comprise at least one actuating element located proximate to, but not in physical contact with, a display screen. In addition, the at least one actuating element may be configured to generate waves directed towards the display screen. When the waves impact the display screen, the waves impart vibration to the display screen.

公开(公告)号：US20160094820A1

公开(公告)日：2016-03-31

申请号：US14891247

申请日：2014-05-14

Applicant: Gary D. SHARP ,  David A. COLEMAN ,  RealD Inc.

Inventor： Gary D. Sharp ,  David A. Coleman

IPC: H04N9/31 ,  H04N13/04

CPC classification number: H04N9/3182 ,  H04N13/122 ,  H04N13/341 ,  H04N13/356 ,  H04N13/363

Abstract: Disclosed is a system for balancing brightness in cinema presentation. The brightness between 2D and 3D mode in cinema presentation may be substantially maintained without a substantial change in projector lamp current when switching between the two presentation modes. A dimmer can be engaged which allows the light in at least one path to be attenuated during 2D operation. The dimmer can be activated in any number of ways, including, but not limited to, mechanically, electromechanically, or electro-optically, any combination thereof, and so forth. The dimmer may be inserted in one light path and may be physically removed from the light path during 3D operation in order to maximize 3D efficiency.

Abstract translation: 公开了一种用于平衡电影呈现中的亮度的系统。 在两种呈现模式之间切换时，电影呈现中的2D和3D模式之间的亮度可以被基本上保持而投影灯的电流没有显着变化。 可以接合调光器，其允许至少一条路径中的光在2D操作期间被衰减。 调光器可以以任何数量的方式被激活，包括但不限于机械的，机电的或电光学上的任何组合，等等。 调光器可以插入一个光路中，并且可以在3D操作期间物理地从光路中移除，以便最大化3D效率。

公开(公告)号：US09146454B2

公开(公告)日：2015-09-29

申请号：US14313364

申请日：2014-06-24

Applicant: RealD Inc.

Inventor： David A. Coleman ,  Gary D. Sharp

IPC: G03B21/60 ,  G03B21/604 ,  G03B21/625 ,  G03B21/56 ,  G03B21/602

CPC classification number: G03B21/60 ,  G03B21/56 ,  G03B21/602 ,  G03B21/604 ,  G03B21/625 ,  Y10T428/24355

Abstract: A method for providing a projection screen for receiving stereoscopic images may include providing a substrate with a contoured, reflective surface, wherein light reflected from the substrate substantially may undergo no more than a single reflection and may also include coating a first layer on the substrate with a contoured, reflective surface. The first layer may substantially maintain the same optical properties as the substrate without the first layer. The first layer may be substantially conformal to the surface of the substrate and also may be a self assembled monolayer coating which may include at least a functional group that is hydrophobic.

Abstract translation: 用于提供用于接收立体图像的投影屏幕的方法可以包括向基板提供具有轮廓的反射表面，其中从基板反射的光基本上可以经历不超过单个反射，并且还可以包括在基板上涂覆第一层， 一个轮廓，反光的表面。 第一层可以基本上保持与没有第一层的衬底相同的光学性质。 第一层可以基本上与衬底的表面共形，并且还可以是自组装的单层涂层，其可以包括至少一个疏水性的官能团。

公开(公告)号：US09086578B2

公开(公告)日：2015-07-21

申请号：US14275765

申请日：2014-05-12

Applicant: RealD Inc.

Inventor： Kevin Curtis ,  David A. Coleman ,  Gary D. Sharp

IPC: G03B21/56 ,  G02B27/48

CPC classification number: G02B27/48 ,  G03B21/56 ,  G03B21/562 ,  G03B31/00

Abstract: Disclosed herein are systems and related methods for reducing speckle on display screen. More specifically, screen vibration is used to reduce speckle, and in accordance with the disclosed principles, the vibration may be achieved by using wave-based actuation (e.g., acoustic or electromagnetic waves) to vibrate the screen. In an exemplary embodiment, a speckle reducing system may comprise at least one actuating element located proximate to, but not in physical contact with, a display screen. In addition, the at least one actuating element may be configured to generate waves directed towards the display screen. When the waves impact the display screen, the waves impart vibration to the display screen.

Abstract translation: 本文公开了用于减少显示屏上的斑点的系统和相关方法。 更具体地，使用屏幕振动来减少散斑，并且根据公开的原理，可以通过使用基于波的致动（例如，声波或电磁波）来振动屏幕来实现振动。 在示例性实施例中，散斑减少系统可以包括至少一个致动元件，其位于显示屏附近而不是物理接触显示屏。 另外，至少一个致动元件可被配置成产生指向显示屏的波。 当波浪冲击显示屏幕时，波浪对显示屏幕施加振动。

公开(公告)号：US20140063600A1

公开(公告)日：2014-03-06

申请号：US14020654

申请日：2013-09-06

Applicant: RealD Inc.

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

IPC: G03B21/56

CPC classification number: G03B21/562 ,  G02B27/48 ,  G03B21/56 ,  G03B21/60 ,  G03B21/606

Abstract: 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.

Abstract translation: 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：US20130107361A1

公开(公告)日：2013-05-02

申请号：US13714874

申请日：2012-12-14

Applicant: RealD Inc.

Inventor： Gary D. Sharp ,  David A. Coleman

IPC: G02B27/26 ,  G02B5/30

CPC classification number: G02B27/26 ,  B29D11/00644 ,  G02B5/30 ,  G02B5/3033 ,  G02B5/3083 ,  H04N2213/008

Abstract: Stereoscopic eyewear with compound curvature may be employed to view three dimensional content. The manufacture of such eyewear may be achieved by thermoforming a first material and by thermoforming a second material. The first and second materials may be in roll stock form prior to thermoforming, and the first layer may be polarizer material, while the second layer may be retarder material. Each of the first and second materials may be thermoformed by employing optimized thermoforming conditions for each of the two materials. Additionally, the two thermoforming lines may be timed so that the curved shapes of the first material in roll stock form may be substantially synchronized with the curved shapes of the second material in roll stock form, which may allow the curved shapes of each of the first and second materials in roll stock form may be joined together.

Abstract translation: 具有复合曲率的立体眼镜可用于观察三维内容。 这种眼镜的制造可以通过热成型第一材料和通过热成型第二材料来实现。 第一和第二材料可以是在热成型之前的卷材形式，并且第一层可以是偏振片材料，而第二层可以是延迟材料。 可以通过对两种材料中的每一种采用优化的热成型条件来对第一和第二材料中的每一种进行热成型。 另外，两个热成型线可以被定时，使得以卷材形式的第一材料的弯曲形状可以基本上与卷材形式的第二材料的弯曲形状同步，这可以允许第一材料的弯曲形状 并且可以将卷材形式的第二材料连接在一起。