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    Stereoscopic image display apparatus with remotely controlled alignment function and method of displaying stereoscopic image using the same
    51.
    发明授权
    Stereoscopic image display apparatus with remotely controlled alignment function and method of displaying stereoscopic image using the same 有权

    公开(公告)号：US09942538B2

    公开(公告)日：2018-04-10

    申请号：US15047630

    申请日：2016-02-19

    Applicant: RealD Inc.

    Inventor： Bong Jae So ,  Yong Kyu Kim ,  Young Suk Kim

    IPC: H04N13/04 ,  H04N5/44

    CPC classification number: H04N13/327 ,  H04N5/4403 ,  H04N13/337 ,  H04N13/363 ,  H04N13/398 ,  H04N2005/4442

    Abstract: A stereoscopic image display apparatus that is capable of being efficiently aligned using a remotely controlled alignment function and a method of displaying a stereoscopic image using the same are disclosed. The stereoscopic image display apparatus includes a polarizing beam splitter for spatially splitting image light emitted by a projector into at least one transmitted beam and at least one reflected beam based on polarized components, at least one modulator for adjusting the transmitted beam and the reflected beam such that the transmitted beam and the reflected beam have different polarization directions when a left image and a right image are projected by the transmitted beam and the reflected beam, an angle adjustment unit for adjusting the position on a screen on which the transmitted beam is projected in response to a first remote control signal, a remote-control alignment type reflecting member for adjusting the path of the reflected beam in response to a second remote control signal such that the reflected beam overlaps the transmitted beam projected on the position on the screen adjusted in response to the first remote control signal in order to form a single image, and a remote controller remotely connected to the angle adjustment unit and the remote-control alignment type reflecting member for transmitting the first remote control signal and the second remote control signal to the angle adjustment unit and the remote-control alignment type reflecting member, respectively.

    High elastic modulus projection screen substrates
    53.
    发明申请
    High elastic modulus projection screen substrates 审中-公开

    公开(公告)号：US20170285454A1

    公开(公告)日：2017-10-05

    申请号：US15622926

    申请日：2017-06-14

    Applicant: RealD, Inc.

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

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

    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.

    SYSTEM AND METHOD FOR VIBRATING SCREENS TO REDUCE SPECKLE
    55.
    发明申请
    SYSTEM AND METHOD FOR VIBRATING SCREENS TO REDUCE SPECKLE 有权

    公开(公告)号：US20170219839A1

    公开(公告)日：2017-08-03

    申请号：US15385352

    申请日：2016-12-20

    Applicant: RealD Inc.

    Inventor： Douglas J. McKnight ,  Kevin Curtis

    IPC: G02B27/48 ,  G10K11/175 ,  G03B21/56

    CPC classification number: G02B27/48 ,  G03B21/562 ,  G10K11/175

    Abstract: The present disclosure includes systems and methods for solving speckle problems by exciting the screen with a more complex vibration spectrum. A range of frequencies provides, in effect, a collection of overlapping patterns of high and low displacement, so that all regions of the screen have enough motion to reduce visible speckle. As previously discussed acceptable speckle may be approximately 15% contrast or less, preferably approximately 5% contrast or less at approximately 15 feet from the screen.

    Screen vibration for reducing speckle
    56.
    发明授权
    Screen vibration for reducing speckle 有权

    公开(公告)号：US09696617B2

    公开(公告)日：2017-07-04

    申请号：US14847991

    申请日：2015-09-08

    Applicant: RealD Inc.

    Inventor： Mark DiLullo ,  Kevin Curtis ,  Douglas J. McKnight

    IPC: G03B21/56 ,  G02B27/48

    CPC classification number: G03B21/562 ,  G02B27/48

    Abstract: The present disclosure provides discussion of screen vibration to reduce speckle in display applications and/or projection screens. Electrical transducers or reactors may be used with a screen to reduce or remove speckle in projection screens and/or display applications. Electrical transducers may not be directly mounted to a screen, thus eliminating many mechanical failure modes associated with a vibrating transducer as well as resulting in a much quieter operation. By design, the reactors or transducers may actually contact the screen, and can take up less than one square inch of screen surface each, than previous designs, which may be outside of the active viewing area and within 12 inches of the screen border, preferably less than approximately 1 inch from screen edge. The reactors are magnets, though any ferrous material can be made to work with certain operating conditions.

    Wide angle imaging directional backlights
    57.
    发明申请
    Wide angle imaging directional backlights 审中-公开

    公开(公告)号：US20170139097A1

    公开(公告)日：2017-05-18

    申请号：US15290543

    申请日：2016-10-11

    Applicant: RealD Inc.

    Inventor： Michael G. Robinson ,  Graham J. Woodgate

    IPC: F21V8/00 ,  G02B27/22 ,  H05B33/08

    CPC classification number: G02B6/002 ,  B29D11/00596 ,  G02B5/09 ,  G02B6/0038 ,  G02B6/0048 ,  G02B6/0055 ,  G02B6/0068 ,  G02B27/0093 ,  G02B27/225 ,  H04N13/305 ,  H04N13/312 ,  H04N13/32 ,  H04N13/349

    Abstract: An imaging directional backlight apparatus includes a waveguide and a light source array for providing large area directed illumination from localized light sources. The waveguide may include a stepped structure. The steps may include extraction features optically hidden to guided light, propagating in a first forward direction. Returning light propagating in a second backward direction may be refracted, diffracted, or reflected by the features, providing discrete illumination beams exiting from the top surface of the waveguide. Viewing windows are formed through imaging individual light sources and define the relative positions of system elements and ray paths. The uncorrected system creates non-illuminated void portions when viewed off-axis preventing uniform wide angle 2D illumination modes. The input end may have microstructures arranged to remove this non uniformity at wide angles. The microstructures may have reduced reflectivity for parts of the input end that contribute to stray light in privacy and autostereoscopic modes.

    System and method for vibrating screens to reduce speckle
    59.
    发明授权
    System and method for vibrating screens to reduce speckle 有权
    振动筛的系统和方法，减少斑点

    公开(公告)号：US09529207B2

    公开(公告)日：2016-12-27

    申请号：US14298633

    申请日：2014-06-06

    Applicant: RealD Inc.

    Inventor： Douglas J. McKnight ,  Kevin Curtis

    IPC: G03B21/56 ,  G02B27/48

    CPC classification number: G02B27/48 ,  G03B21/562 ,  G10K11/175

    Abstract: The present disclosure includes systems and methods for solving speckle problems by exciting the screen with a more complex vibration spectrum. A range of frequencies provides, in effect, a collection of overlapping patterns of high and low displacement, so that all regions of the screen have enough motion to reduce visible speckle. As previously discussed acceptable speckle may be approximately 15% contrast or less, preferably approximately 5% contrast or less at approximately 15 feet from the screen.

    Abstract translation: 本公开包括通过以更复杂的振动谱激发屏幕来解决斑点问题的系统和方法。 频率范围实际上提供了高和低位移的重叠图案的集合，使得屏幕的所有区域具有足够的运动以减少可见斑点。 如前所述，可接受的斑点可以在离屏幕大约15英尺处约15％的对比度或更小，优选约5％的对比度或更小。

    Wide Angle Imaging Directional Backlights
    60.
    发明申请
    Wide Angle Imaging Directional Backlights 审中-公开
    广角成像定向背光

    公开(公告)号：US20160349444A1

    公开(公告)日：2016-12-01

    申请号：US15165960

    申请日：2016-05-26

    Applicant: RealD Inc.

    Inventor： Michael G. Robinson ,  Robert A. Ramsey ,  Graham J. Woodgate

    IPC: F21V8/00

    CPC classification number: G02B6/0055 ,  G02B6/0016 ,  G02B6/0038 ,  G02B6/0048 ,  G02B6/0068 ,  G02B6/0091

    Abstract: An imaging directional backlight apparatus including a waveguide, a light source array, for providing large area directed illumination from localized light sources. The waveguide may include a stepped structure, in which the steps may further include extraction features optically hidden to guided light, propagating in a first forward direction. Returning light propagating in a second deflected direction may be refracted, diffracted, or reflected by the features to provide discrete illumination beams exiting from the top surface of the waveguide. Viewing windows are formed through imaging individual light sources from the side of the waveguide and hence defines the relative positions of system elements and ray paths. A directional backlight with small footprint and low thickness may be provided.

    Abstract translation: 一种成像方向性背光装置，包括用于从局部光源提供大面积定向照明的波导，光源阵列。 波导可以包括阶梯式结构，其中步骤还可以包括在导向光中隐藏的提取特征，在第一向前方向上传播。 在第二偏转方向上传播的返回光可以由特征折射，衍射或反射，以提供离开波导顶表面离散的照明光束。 通过从波导侧面成像各个光源形成观察窗，从而定义系统元件和射线路径的相对位置。 可以提供小尺寸和低厚度的定向背光。

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