Autostereoscopic display with a passive cycloidal diffractive waveplate

    公开(公告)号:US09237337B2

    公开(公告)日:2016-01-12

    申请号:US13593625

    申请日:2012-08-24

    CPC classification number: H04N13/305 G09G3/003 H04N13/307 H04N13/366

    Abstract: A new beam deflection approach is provided for displaying images in autostereoscopic format. Conceptually, polarized light from a display is directed into specific viewing regions using a polarization-sensitive beam deflection sub-system that comprises, in exemplary embodiments, an active liquid crystal quarter-wave plate modulator and a passive cycloidal grating element, such as a diffractive waveplate. Specific embodiments may comprise an illumination system that both floods an LCD panel and creates a defined eye pupil region, from within which the display is viewable. Deflecting the pupil region between left and right eye positions in synchronization with displayed frame sequential stereo image data creates desirable autostereoscopic 3D viewing. Other embodiments employ a similar beam deflection sub-system in conjunction with a means of viewing subsets of pixels from different viewing positions, such as a parallax barrier or lenslet array, allowing freedom of head movement while maintaining stereo viewing.

    Anamorphic stereoscopic optical apparatus and related methods
    105.
    发明授权
    Anamorphic stereoscopic optical apparatus and related methods 有权
    变形立体光学仪器及相关方法

    公开(公告)号:US09110368B2

    公开(公告)日:2015-08-18

    申请号:US13525609

    申请日:2012-06-18

    Inventor: Miller H. Schuck

    CPC classification number: G03B35/10 G03B35/22

    Abstract: Disclosed herein are apparatuses and methods for reclaiming the full field of view (FOV) of the original camera lens in a stereoscopic image capture system using an anamorphic attachment. Also disclosed are apparatuses and methods of projecting stereoscopic images on a fixed size screen from a single projector that was initially designed primarily for 2D operation. An exemplary apparatus may comprise an anamorphic afocal converter configured to halve a FOV of a camera or projector into two optical paths, and convert the halved FOVs into two full FOVs of the camera or projector. Such an apparatus may further comprise reflecting elements cooperatively arranged to direct two rectified images at a camera sensor or projection screen, where one or more reflecting elements receive the first of the two full FOVs and one or more reflecting elements receive the second of the two full FOVs.

    Abstract translation: 这里公开了在使用变形附件的立体图像捕获系统中回收原始相机镜头的全视场(FOV)的装置和方法。 还公开了从最初设计为主要用于2D操作的单个投影仪投影在固定尺寸屏幕上的立体图像的装置和方法。 示例性装置可以包括变形无焦转换器,其被配置为将相机或投影仪的FOV减半到两个光路径,并且将该半部FOV转换成相机或投影仪的两个全FOV。 这样的装置还可以包括协调地布置成在相机传感器或投影屏幕处引导两个整流图像的反射元件,其中一个或多个反射元件接收两个全FOV中的第一个,并且一个或多个反射元件接收两个完整的FOV中的第二个 FOVs。

    High elastic modulus projection screen substrates
    107.
    发明授权
    High elastic modulus projection screen substrates 有权
    高弹性模量投影屏幕基板

    公开(公告)号:US09046755B2

    公开(公告)日:2015-06-02

    申请号:US14020654

    申请日:2013-09-06

    Applicant: RealD Inc.

    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。

    Stereoscopic eyewear
    108.
    发明授权
    Stereoscopic eyewear 有权
    立体眼镜

    公开(公告)号:US09025091B2

    公开(公告)日:2015-05-05

    申请号:US13309549

    申请日:2011-12-01

    CPC classification number: G02B5/305 G02B5/3083 G02B27/26 H04N13/337

    Abstract: Described are stereoscopic eyewear, methods and systems for manufacturing the same. The stereoscopic eyewear includes right- and left-eye filters for analyzing stereoscopically-encoded polarized light. The filters are made using a roll-type polarizer having an absorption axis. A polymer alignment layer is deposited on a portion of the roll-type polarizer. A liquid crystal polymer (LCP) layer is deposited on the polymer alignment layer. The polymer alignment layer and LCP layer provides at least one retarder having an optic axis at a predetermined angle to the absorption axis of the roll-type polarizer. Described embodiments include a polymer alignment layer that may include at least one of a linearly photopolymerizable polymer (LPP), a brushed or rolled polyimide.

    Abstract translation: 描述的是立体眼镜,用于制造它的方法和系统。 立体眼镜包括用于分析立体编码的偏振光的右眼和左眼滤镜。 使用具有吸收轴的辊式偏振器制造滤光片。 聚合物取向层沉积在辊型偏振器的一部分上。 在聚合物取向层上沉积液晶聚合物(LCP)层。 聚合物取向层和LCP层提供至少一个延迟器,其具有与辊式偏振器的吸收轴成预定角度的光轴。 所描述的实施方案包括聚合物取向层,其可以包括直链可光聚合的聚合物(LPP),拉丝或辊状聚酰亚胺中的至少一种。

    Speckle reduction using lenslet integrator
    109.
    发明授权
    Speckle reduction using lenslet integrator 有权
    使用小透镜积分器减少斑点

    公开(公告)号:US08995061B2

    公开(公告)日:2015-03-31

    申请号:US13544964

    申请日:2012-07-09

    Applicant: Kevin Curtis

    Inventor: Kevin Curtis

    Abstract: Disclosed herein are techniques for the reduction speckle of a projection display system using novel lenslet integrators and related methods. In one embodiment, a lenslet integrator system for reducing speckle on a display screen may comprise a first lenslet array configured to receive incoming light for use in displaying an image on a display screen. Specifically, the first lenslet array has motion sufficient to reduce speckle by averaging multiple speckle patterns across its array. Such an exemplary system may also include a second lenslet array configured to receive light that is roughly focused from the moving first lenslet array, due to the motion of the first array. In addition, such systems may also include an output lens configured to receive light focused from the second lenslet array for output from the system for illumination of the display screen.

    Abstract translation: 本文公开了使用新颖的小透镜积分器和相关方法来减少投影显示系统的斑点的技术。 在一个实施例中,用于减少显示屏上的斑点的小透镜积分器系统可以包括配置成接收入射光以用于在显示屏上显示图像的第一小透镜阵列。 具体来说,第一个小透镜阵列具有足够的运动以通过在其阵列上平均多个斑纹图案来减少斑点。 这种示例性系统还可以包括由于第一阵列的运动而被配置为接收从移动的第一小透镜阵列粗略聚焦的光的第二小透镜阵列。 此外,这样的系统还可以包括配置成接收从第二小透镜阵列聚焦的光的输出透镜,用于从系统输出用于显示屏的照明。

    Method, apparatus and system on a chip for controlling a stereoscopic display device
    110.
    发明授权
    Method, apparatus and system on a chip for controlling a stereoscopic display device 有权
    用于控制立体显示装置的芯片上的方法,装置和系统

    公开(公告)号:US08952868B2

    公开(公告)日:2015-02-10

    申请号:US13906058

    申请日:2013-05-30

    Abstract: This disclosure provides a technique for controlling the slew rate and number of transition segments used to move the LC drive voltage level from one voltage to another. In one embodiment, a method of controlling a polarization modulator in a polarization-based stereoscopic display device may comprise providing digital signals to each of a plurality of drive circuits to generate a drive voltage from each drive circuit, where the drive voltages drive the polarization modulator. Such an exemplary method may also include determining a time sequential list of transition specifications configured to provide discrete transitions in one or more of the drive voltages. Then, in such methods, the digital signals provided to each of the one or more drive circuits receiving a transition may be adjusted, in accordance with the time sequential list, thereby altering their drive voltages based on the transition specifications.

    Abstract translation: 本公开提供了一种用于控制用于将LC驱动电压电平从一个电压移动到另一个的转换速率和转换段的数量的技术。 在一个实施例中,一种在基于偏振的立体显示装置中控制偏振调制器的方法可包括向多个驱动电路中的每一个提供数字信号,以产生来自每个驱动电路的驱动电压,其中驱动电压驱动偏振调制器 。 这种示例性方法还可以包括确定配置成在一个或多个驱动电压中提供离散转变的转换规范的时间顺序列表。 然后,在这样的方法中,可以根据时间顺序表来调整提供给接收转换的一个或多个驱动电路中的每一个的数字信号,从而基于转换规范改变其驱动电压。

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