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公开(公告)号：US11520163B2
公开(公告)日：2022-12-06
申请号：US17117053
申请日：2020-12-09
申请人： RealD Inc.
发明人： Chui Woo Lee , Sung Ho Cho , Byung Gul Lim
摘要： A stereoscopic image apparatus that is capable of minimizing loss of optical energy and improving quality of a stereoscopic image is disclosed. The stereoscopic image apparatus includes a polarizing beam splitter to reflect or transmit incident light based on polarization components of the light to split the light in at least three different directions, a reflective member to reflect the light reflected by the polarizing beam splitter to a screen, at least one modulator to modulate the light reflected by the reflective member and the light transmitted through the polarizing beam splitter, and a refractive member disposed in an advancing direction of light to be incident upon the polarizing beam splitter to refract the light to be incident upon the polarizing beam splitter.
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公开(公告)号：US10739611B2
公开(公告)日：2020-08-11
申请号：US16221107
申请日：2018-12-14
申请人： RealD Inc.
IPC分类号： G02B30/35 , G02B30/25 , H04N13/337 , H04N13/341 , G02B30/24 , 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 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.
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公开(公告)号：US10701348B2
公开(公告)日：2020-06-30
申请号：US15573117
申请日：2016-05-09
申请人： RealD Inc.
发明人： Young Hoon Lee , Chul Woo Lee , Bong Jae So
IPC分类号： H04N13/31 , H04N13/363 , G03B21/28 , G03B35/26 , H04N13/204 , H04N13/337 , H04N13/261 , H04N9/31
摘要： Proposed is a stereoscopic image screening device. The stereoscopic image screening device comprising: a polarized light splitter for spatially splitting and emitting an image light emitted from a projector into transmitted light and one or more reflected lights according to polarization components; a first modulator for emitting the transmitted light on a screen by performing modulation in a way allowing different polarizations as the transmitted light is alternately emitted as a left image or a right image in a time-division scheme; and a second modulator for emitting the reflected light on the screen by performing modulation in a way allowing different polarizations as the reflected light is alternately emitted to a left image or a right image in a time-division scheme, wherein the first modulator and the second modulator are set in a manner that the phase delay of the first modulator is any one of 0λ and ½λ, and the phase delay of the second modulator is the other one of 0λ and ½λ at a specific point of time.
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4.发明授权公开(公告)号：US10395345B2
公开(公告)日：2019-08-27
申请号：US15934394
申请日：2018-03-23
申请人： RealD Inc.
发明人： Anthony Davis
摘要： First and second spatial frame regions are identified in a sequence of motion picture image frames captured at a high frame rate. Different motion blur parameters are determined for each of the first and second spatial frame regions. First and second intermediate frame sequences having frame rates less than the capture frame rate are generated from the original frame sequence. The first motion blur parameter is applied to the first intermediate frame sequence and the second motion blur parameter is applied to the second intermediate frame sequence. The first and second spatial frame regions in the corresponding first and second intermediate frame sequences are composited to produce an output frame sequence having different motion blur in different regions of the scene.
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公开(公告)号：US09823561B2
公开(公告)日：2017-11-21
申请号：US13549304
申请日：2012-07-13
CPC分类号： G03B21/56 , Y10T156/1089 , Y10T428/24752
摘要： The present disclosure describes a manufacturing method for seaming materials. The process may be suitable for manufacturing high performance projection screens using a number of methods including, but not limited to, conventional (convert-before-coating) methods, or convert-after-coating methods. An objective of the present disclosure is to identify a process which may substantially minimize distortion of the local surface normal in the vicinity of the join.
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公开(公告)号：US09743076B2
公开(公告)日：2017-08-22
申请号：US14997424
申请日：2016-01-15
申请人： RealD Inc.
发明人： Miller H. Schuck
IPC分类号： H04N13/04 , G02B27/26 , G02B26/00 , G02B27/00 , G02B13/00 , G02B13/16 , G02B27/28 , G02B17/08 , G02F1/01 , H04N9/31
CPC分类号： H04N13/363 , G02B13/0095 , G02B13/16 , G02B17/0896 , G02B26/008 , G02B27/0025 , G02B27/26 , G02B27/283 , G02B27/286 , G02F1/0136 , H04N9/3167 , H04N13/337 , H04N13/341
摘要： Optical systems, such as 2-D and 3-D projection systems, may be configured to have a compact back focal length to allow for more compact projection lenses, lower throw ratios, improved contrast, or any combination thereof. In an embodiment, an optical system may include a relay element configured to form an intermediate image having a focal point proximate to a projection lens.
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公开(公告)号：US09709883B2
公开(公告)日：2017-07-18
申请号：US14717821
申请日：2015-05-20
申请人： RealD Inc.
发明人： Gary D. Sharp , Kevin Curtis , David A. Coleman
IPC分类号： G03B21/56 , G03B21/606 , G02B27/48 , G03B21/60
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.
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公开(公告)号：US09625745B2
公开(公告)日：2017-04-18
申请号：US14541818
申请日：2014-11-14
申请人： RealD Inc.
CPC分类号： G02F1/0136 , G03B21/14 , G03B21/2073 , G03B21/28 , H04N9/3141 , H04N9/3167
摘要： Display devices with high dynamic ranges approaching the limitations of the human eye are discussed herein. High dynamic range projections systems may be 2D or 3D and devices may or may not be implemented with polarization preserving optics for high efficiency. In one embodiment, 2D HDR projection systems may compensate the modulator for varying transmission and contrast versus field of view. In another embodiment, 3D HDR projection systems may include a global or pixelated/segmented modulator. The global or pixelated/segmented modulator may be included in a stereoscopic polarization switch or in a polarization-preserving stereoscopic projection system. Additionally, a combination of global/global or pixelated/pixelated, or global/pixelated modulators may be used.
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公开(公告)号：US09530397B2
公开(公告)日：2016-12-27
申请号：US13786092
申请日：2013-03-05
申请人： RealD Inc.
发明人： Gary D. Sharp , David A. Coleman
摘要： A front projection screen is provided having a first portion of material and a second portion of material. The first and second portions of material may have an undercut edge profile, and the first and second portions of material may be perforated, such that the perforations allow the first and second portions of material to be at least somewhat acoustically transmissive while substantially maintaining optical efficiency from the front side of the front projection screen. Such optical efficiency has particular utility in stereoscopic projection applications utilizing polarized encoded light.
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公开(公告)号：US09457523B2
公开(公告)日：2016-10-04
申请号：US14216561
申请日：2014-03-17
申请人： RealD Inc.
发明人： David A. Coleman , Gary D. Sharp
CPC分类号： B29D11/00634 , B29D11/00644 , B29D11/0073 , B29K2995/0034 , B32B37/12 , B32B38/1866 , B32B2307/40 , G02B5/3033 , G02B27/26 , Y10T156/10 , Y10T156/1007 , Y10T156/1744
摘要： Curved polarization filters and methods of manufacturing such filters are described in the present disclosure. An exemplary method includes laminating a planar polarization layer to a planar retarder layer at a predetermined orientation and bending the laminate to create a curved filter. The strain on the retarder layer results in stress-induced birefringence, and the predetermined orientation of the retarder substantially compensates for the stress-induced birefringence. In some embodiments, the predetermination is based on mathematical models. In some other embodiment, the predetermination is based on experimental data.
摘要翻译： 在本公开中描述了弯曲偏振滤光器和制造这种滤光器的方法。 一种示例性方法包括将平面偏振层以预定取向层压到平面延迟层，并弯曲层压板以形成弯曲过滤器。 缓凝剂层上的应变导致应力诱导的双折射，并且延迟器的预定取向基本上补偿了应力引起的双折射。 在一些实施例中，预定义基于数学模型。 在一些其他实施例中，预测是基于实验数据。
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