Patents Assigned to RealD Inc.
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Patent number: 11575880Abstract: 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.Type: GrantFiled: December 9, 2021Date of Patent: February 7, 2023Assignee: RealD Inc.Inventors: Bong Jae So, Yong Kyu Kim, Young Suk Kim
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Patent number: 11543670Abstract: A polarizing beam splitter assembly for directing image light on an input path into multiple exit light paths comprises multiple prisms with edges that meet to form a seam. The polarizing beam splitter assembly includes a diffracting element prior to the seam in the input light path. The diffracting element comprises a geometry that performs at least one of blocking a portion of the image light and scattering a portion of the image light.Type: GrantFiled: July 19, 2021Date of Patent: January 3, 2023Assignee: RealD Inc.Inventors: Jay Ahling, Matthew Zimmer
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Patent number: 11520163Abstract: 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.Type: GrantFiled: December 9, 2020Date of Patent: December 6, 2022Assignee: RealD Inc.Inventors: Chui Woo Lee, Sung Ho Cho, Byung Gul Lim
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Patent number: 11223819Abstract: 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.Type: GrantFiled: April 4, 2018Date of Patent: January 11, 2022Assignee: RealD Inc.Inventors: Bong Jae So, Yong Kyu Kim, Young Suk Kim
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Patent number: 11143948Abstract: A polarization conversion system (PCS) is located in the output light path of a projector. 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.Type: GrantFiled: March 23, 2018Date of Patent: October 12, 2021Assignee: RealD Inc.Inventors: Miller H. Schuck, Michael G. Robinson, Gary D. Sharp
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Patent number: 11092816Abstract: A polarizing beam splitter assembly for directing image light on an input path into multiple exit light paths comprises multiple prisms with edges that meet to form a seam. The polarizing beam splitter assembly includes a diffracting element prior to the seam in the input light path. The diffracting element comprises a geometry that performs at least one of blocking a portion of the image light and scattering a portion of the image light.Type: GrantFiled: October 16, 2019Date of Patent: August 17, 2021Assignee: RealD Inc.Inventors: Jay Ahling, Matthew Zimmer
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Patent number: 10914965Abstract: 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.Type: GrantFiled: April 5, 2018Date of Patent: February 9, 2021Assignee: RealD Inc.Inventors: Chui Woo Lee, Sung Ho Cho, Byung Gul Lim
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Patent number: 10739611Abstract: 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.Type: GrantFiled: December 14, 2018Date of Patent: August 11, 2020Assignee: RealD Inc.Inventors: Miller H. Schuck, Michael G. Robinson, Gary D. Sharp
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Patent number: 10701348Abstract: Proposed is a stereoscopic image screening device.Type: GrantFiled: May 9, 2016Date of Patent: June 30, 2020Assignee: REALD INC.Inventors: Young Hoon Lee, Chul Woo Lee, Bong Jae So
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Patent number: 10614767Abstract: 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.Type: GrantFiled: July 25, 2018Date of Patent: April 7, 2020Assignee: RealD Inc.Inventors: Miller H. Schuck, Gary D. Sharp, Douglas J. McKnight, Terry Norton
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Patent number: 10466543Abstract: A 3D image pixel in a spatially multiplexed stereo 3D display includes a first left-eye subpixel and a second left-eye subpixel that are both driven when displaying the left-eye image. The 3D image pixel also includes a first right-eye subpixel and a second right-eye subpixel that are both driven when displaying the right-eye image. The subpixels may all have a square shape. Single color emitters in the subpixels of the same eye may be driven by the same electronics. A 3D image pixel in a second spatially multiplexed stereo 3D display includes a left-eye pixel driven when displaying the left-eye image and a right-eye pixel driven when displaying the right-eye image. The pixels may all have a rectangular shape, and the horizontal measurement of the pixels may be greater than the vertical measurement of the pixels.Type: GrantFiled: June 26, 2017Date of Patent: November 5, 2019Assignee: RealD, Inc.Inventors: David A. Coleman, Peter Ludé
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Patent number: 10459321Abstract: Optical systems having at least one polarization beam splitter (PBS) are operable to receive randomly-polarized light bundles from a projector lens. The PBS is further operable to direct light bundles having a state of polarization (SOP) along a light path and operable to direct other light bundles having a different SOP along different light paths. The light paths have optical path lengths which may differ. Each light path produces an image having a distortion which may differ from the distortion of an image produced by a different light path. A compensation in a light path is operable to convert a non-compensated distortion of an image into a compensated distortion that more closely matches the distortion of images in other light paths.Type: GrantFiled: November 10, 2016Date of Patent: October 29, 2019Assignee: RealD Inc.Inventors: Miller H. Schuck, Douglas J. McKnight
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Applying different motion blur parameters to spatial frame regions within a sequence of image frames
Patent number: 10395345Abstract: 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.Type: GrantFiled: March 23, 2018Date of Patent: August 27, 2019Assignee: RealD Inc.Inventor: Anthony Davis -
Patent number: 10291906Abstract: The present invention relates to a stereoscopic image device and a method for providing a stereoscopic image and, more specifically, to a stereoscopic image device and a method capable of providing a stereoscopic image, which can provide high-quality stereoscopic image by using two projectors and devices related thereto.Type: GrantFiled: December 29, 2014Date of Patent: May 14, 2019Assignee: RealD Inc.Inventors: Byung Gul Lim, Sung Ho Cho, Chul Woo Lee
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Patent number: 10254637Abstract: A method of mounting screen material may include a screen mounted to a frame at multiple mounting points. One embodiment may include mounting patches attached along the perimeter of the screen. These mounting patches may be strain relieved in order to enable rolling the screen without sacrificing the in-plane rigidity of the patches when the screen is mounted to a frame. Stated differently, the strain relieved patches may reduce the strain on the screen in the circumstance the screen is rolled onto a core. The mounting patches may be strain relieved by locating notches or slits in the mounting patch.Type: GrantFiled: July 31, 2017Date of Patent: April 9, 2019Assignee: RealD Inc.Inventors: Harrison Fast, David A. Coleman, Mark DiLullo
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Patent number: 10203511Abstract: 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.Type: GrantFiled: July 20, 2017Date of Patent: February 12, 2019Assignee: RealD Inc.Inventors: Miller H. Schuck, Michael G. Robinson, Gary D. Sharp
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Patent number: 10129538Abstract: A controller that may implement variation of the content of binocular images which may depend upon which region of a binocular image a viewer is fixating. An aspect of the present disclosure may include locally controlling the viewer's perceived depth impression which may depend on where in perceived depth in an image the viewer is fixating. This may enable the perceived depth to be optimized across the image for quality and performance reasons.Type: GrantFiled: February 19, 2014Date of Patent: November 13, 2018Assignee: RealD Inc.Inventors: Nicolas S. Holliman, Michael G Robinson
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Patent number: 10097800Abstract: A dynamic iris is located on the imaging path of an optical lens system that includes a relay lens system and at least one projection lens system. A dynamic iris modulates image frames in an image data stream, resulting in a reduction in light transmission associated with the modulated image frames. A dynamic iris may be configured to change the size of its aperture as fast as or faster than the image frame period of the image data stream, and may be located at or near the pupil of a relay lens system, a projection lens system, or both. A second dynamic iris in the imaging path further modulates the image frames, resulting in a further reduction in light transmission. A dynamic iris may modulate an image frame based on an electronic preview of the image frame or based on metadata associated with the image frame.Type: GrantFiled: May 10, 2016Date of Patent: October 9, 2018Assignee: RealD Inc.Inventor: Miller H. Schuck
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Patent number: 10082675Abstract: 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.Type: GrantFiled: May 26, 2017Date of Patent: September 25, 2018Assignee: RealD Inc.Inventors: Gary D. Sharp, Scott Gilman, David A. Coleman
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Patent number: 10049627Abstract: 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.Type: GrantFiled: January 3, 2014Date of Patent: August 14, 2018Assignee: RealD Inc.Inventors: Miller H. Schuck, Gary D. Sharp, Douglas J. McKnight, Terry Norton