Patents Examined by George G King
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Patent number: 10942490Abstract: A hologram reproducing apparatus is provided that includes a display configured to emit a write beam corresponding to a hologram pattern, a spatial light modulator (SLM) configured to write the hologram pattern according to the write beam and modulate the reproduction beam into a plurality of diffraction beams corresponding to the hologram pattern if a reproduction beam is incident, a light guide plate disposed in a front surface of the SLM, and configured to guide the reproduction beam toward the SLM, a filter configured to filter the plurality of diffraction beams, a lens configured to focus the plurality of diffraction beams filtered through the filter, and a plurality of optical fibers arranged in order to dispose at least one optical fiber to correspond to each of a plurality of pixels included in the display, and configured to transmit the write beam to the SLM.Type: GrantFiled: January 12, 2018Date of Patent: March 9, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Sergey Shestak, Dae-sik Kim, Seon-deok Hwang
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Patent number: 10928647Abstract: A therapeutic training device configured to be worn on the face of a therapist and capable of displaying media content to a patient with ASD, wherein a level of the displayed media content may be adjusted to permit the patient to see the eyes of the therapist through the media content.Type: GrantFiled: March 30, 2020Date of Patent: February 23, 2021Inventor: Heidi Kershaw
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Patent number: 10921557Abstract: The present disclosure provides an optical imaging system of a camera lens assembly. The optical imaging system is sequentially provided with a first lens, a second lens, a third lens and a fourth lens from an object side to an imaging side along an optical axis. The first lens has a positive refractive power, an object side surface and an image side surface of the first lens are both convex surface. An object side surface of the second lens is a convex surface, and an image side surface of the second lens is a convex surface. The third lens has a negative refractive power and the fourth lens has a negative refractive power. An effective focal length of the first lens f1, an effective focal length of the fourth lens f4, and an effective focal length of the optical imaging system f satisfy: ?0.8<(f1+f4)/f<0.Type: GrantFiled: August 9, 2017Date of Patent: February 16, 2021Assignee: Zhejiang Sunny Optical Co., LtdInventor: Lin Huang
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Patent number: 10921611Abstract: The present disclosure provides a display system that may comprise a retro-reflective screen configured to reflect incident light along a direction that is opposite to the direction of propagation of the incident light, and a projector that may project light characterizing an image or video to the retro-reflective screen. An array of optical elements or an individual optical element may be positioned between the retro-reflective screen and the projector. The array of optical elements or individual optical element may direct the light from the projector to the retro-reflective screen in a manner such that the image or video is viewable by a user at an observation angle of at least about 2 degrees.Type: GrantFiled: May 14, 2018Date of Patent: February 16, 2021Assignee: MirraViz, Inc.Inventor: Michael W. Wang
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Patent number: 10921751Abstract: The invention relates to a method for producing a holographic optical element by providing a recording stack comprising at least one recording element laminated on at least one supporting element, irradiating at least a part of the recording stack with at least one recording beam in an irradiating step, wherein during the irradiating step, the recording stack bends, providing a bending deviation threshold for the recording stack, and adjusting at least one first process parameter such that an expected maximum bending deviation of the recording stack does not exceed the bending deviation threshold, wherein the at least one first process parameter influences the bending behaviour of the recording stack during the irradiating step.Type: GrantFiled: August 8, 2018Date of Patent: February 16, 2021Assignees: LG Display Co., Ltd., Covestro Deutschland AGInventors: Hyungseok Bang, Heejin Im, Guensik Lee, Friedrich-Karl Bruder, Thomas Peter Facke, Marc-Stephan Weiser, Rainer Hagen, Thomas Rolle, Horst Berneth, Dennis Honel, Günther Walze
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Patent number: 10914953Abstract: A tunable waveguide display includes a source waveguide, a first tunable lens (FTL), an output waveguide, and a second tunable lens (STL). The source waveguide receives light, expands the light in a first dimension, and outputs the expanded light. The FTL adjusts a wavefront of the expanded light to form adjusted light. The output waveguide receives the adjusted light, expands the adjusted light in a second dimension to form image light, and outputs the image light. The STL adjusts a wavefront of the image light. The FTL and the STL control an image plane of the image light.Type: GrantFiled: June 11, 2018Date of Patent: February 9, 2021Assignee: Facebook Technologies, LLCInventors: Wai Sze Tiffany Lam, Yijing Fu, Lu Lu, Pasi Saarikko
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Patent number: 10908490Abstract: The invention relates to a glazing used as projection screen operating in reflection, comprising a front face, onto which the image is projected, and a rear face. The glazing comprises a variable light scattering system comprising a functional film capable of switching between a transparent state and a scattering state and a coating comprising at least one mirror layer, said coating being separated from the front face at least by the functional film. The invention also relates to the use of a glazing as projection screen, to a projection system and to a projection method using said glazing.Type: GrantFiled: June 4, 2013Date of Patent: February 2, 2021Assignee: Cardinal IG CompanyInventors: Pierrick Guiset, Patrick Gayout
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Patent number: 10901196Abstract: In a light microscope (1) for cryomicroscopy, encompassing at least an objective (2) and a sample stage (3) having a cutout (7) for a coolable holder (8) for a sample carrier mount, the cutout (7) being covered by a cover (6), the sample stage (3) is displaceable in two horizontal directions (4). The cover (6) rests floatingly on the sample stage (3), and the objective (2) passes through a cutout (12), corresponding to the objective (2), in the cover (6). The method for cooling a holder (8) for a sample carrier mount in a light microscope (1) for cryomicroscopes, by means of a flow of liquid nitrogen through a cooling conduit (15), open at at least one end, in the holder (8), is notable for the fact that the quantity of liquid nitrogen is dimensioned so that all of the nitrogen is present in gaseous form at at least one open end (16) of the cooling conduit (15).Type: GrantFiled: July 15, 2015Date of Patent: January 26, 2021Assignees: LEICA MIKROSYSTEME GMBH, EUROPEAN MOLECULAR BIOLOGY LABORATORYInventors: Reinhard Lihl, John Briggs, Martin Schorb, Leander Gaechter
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Patent number: 10895758Abstract: According to one embodiment, a display device includes an optical element including a transmission axis which transmits first linearly polarized light and reflecting second linearly polarized light which crosses the transmission axis, a display unit which emits display light of the second linearly polarized light towards the optical element, a retroreflector including a retroreflective unit which retroreflects reflection light reflected by the optical element, and a non-retroreflective unit, a modulating element including a modulating unit disposed in a position which overlaps the retroreflective unit, and a non-modulating unit disposed in a position which overlaps the non-retroreflective unit.Type: GrantFiled: March 6, 2018Date of Patent: January 19, 2021Assignee: Japan Display Inc.Inventors: Yudai Numata, Takeo Koito
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Patent number: 10895750Abstract: Optical systems and methods are provided, which combine see-through view of the real world and display source images using a conical optical combiner cut to have flat surfaces normal to the viewer line of sight. The conical shape minimizes interferences in the view of the real world as the edges of the optical combiner are tangent to the viewer vision field of view and the inner part of the optical combiner is semitransparent. Additionally, the optical system comprises a beam splitter, a shutter(s) for attenuating or blocking the see-through path and may employ polarizing element to improve the contrast between the scene observation and the projected display and thus enabling selective viewing of either. The system may also be configured to enable diopter adjustment and virtual display distance adjustments.Type: GrantFiled: November 20, 2018Date of Patent: January 19, 2021Assignee: Elbit Systems Ltd.Inventors: Ron Schneider, Gil Benesh, Aron Arlievsky
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Patent number: 10890746Abstract: A microscope objective lens includes, in order from an object side, a first lens group having positive refractive power, a second lens group having positive refractive power, and a third lens group having negative refractive power, and is configured such that the first lens group includes, on the most object side, a positive meniscus lens whose concave surface is directed to the object side, such that the second lens group includes a diffractive optical element having positive refractive power, and such that the diffractive optical element is arranged at a position closer to the image than a portion at which the diameter of a light flux passing through the first lens group and the second lens group is the larges.Type: GrantFiled: March 29, 2018Date of Patent: January 12, 2021Assignee: NIKON CORPORATIONInventor: Miwako Yoshida
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Patent number: 10845519Abstract: A lens for protective gear has first and second polymer layers with a glass layer therebetween. The glass layer is fused to the first and second polymer layers and encapsulated by the first and second polymer layers with the glass layer in compression. The lens may have a coating that provides the lens with (i) less than about 5 percent transmittance for light having wavelengths of less than 400 nm and greater than about 700 nm for an entire horizontal field of view of the lens, (ii) greater than 75 percent transmittance of light having wavelengths of between about 400 nm and about 700 nm for the entire horizontal field of view of the lens with less than about 5 percent transmittance of light having wavelength between about 530 nm and about 580 nm for a horizontal field of view of the lens of not greater than 60 degrees.Type: GrantFiled: April 18, 2017Date of Patent: November 24, 2020Assignee: RAYOTEK SCIENTIFIC, INC.Inventor: William Raggio
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Patent number: 10845515Abstract: A contacted multilayer diffractive optical element having reduced wavelength dependency of diffraction efficiency, the contacted multilayer diffractive optical element facilitating processing in manufacture and being suitable for an infrared optical system, and an infrared optical system and an image pickup apparatus using the diffractive optical element. In order to achieve the above object, a contacted multilayer diffractive optical element comprises a first layer consisting of a first chalcogenide glass material and a second layer consisting of a second chalcogenide glass material, the first chalcogenide glass material and the second chalcogenide glass material satisfying a predetermined conditional expression and being in contact with and stacked on each other, and a diffraction grating structure in a surface of the contact therebetween, and an infrared optical system and an image pickup apparatus comprising the contacted multilayer diffractive optical element are provided.Type: GrantFiled: October 24, 2016Date of Patent: November 24, 2020Assignee: Tamron Co., Ltd.Inventor: Kazunori Komori
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Patent number: 10845597Abstract: A head-mounted display includes a pancake lens block. The pancake lens block includes a first waveplate to form first nonlinearly polarized light, a Fresnel surface to reflect and transmit a portion of the first nonlinearly polarized light, a second waveplate to form first linearly polarized light, and a linear reflective polarizer to transmit linear polarized light of a particular polarization rotation direction and to reflect light of other polarization rotation directions.Type: GrantFiled: May 30, 2018Date of Patent: November 24, 2020Assignee: Facebook Technologies, LLCInventors: Jacques Gollier, Ying Geng, Brian Wheelwright, Andrew John Ouderkirk
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Patent number: 10838359Abstract: A hologram reproducing apparatus is provided that includes a display configured to display a hologram pattern and emit a write beam corresponding thereto, a relay lens disposed at a front surface of the display and comprising an array of microlenses each focusing the write beam, a spatial light modulator (SLM) disposed at a front surface of the relay lens, configured to write the hologram pattern according to the focused write beam and modulate a reproduction beam into a plurality of diffraction beams if the reproduction beam is incident, a light guide plate disposed between the relay lens and the SLM and configured to guide the reproduction beam toward the SLM, a filter disposed at a front surface of the SLM and configured to filter the plurality of diffraction beams and the write beam, and a lens configured to focus the plurality of diffraction beams filtered through the filter.Type: GrantFiled: January 12, 2018Date of Patent: November 17, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Sergey Shestak, Dae-sik Kim, Seon-deok Hwang
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Patent number: 10838045Abstract: An apparatus include a motor, a first scanner, and a second scanner. The first scanner is coupled to the motor, and the motor is configured to rotate the first scanner at a first angular velocity about a rotation axis to deflect a first beam incident in a third plane on the first scanner into a first plane different from the third plane. The second scanner is coupled to the motor, and the motor is configured to rotate the second scanner at a second angular velocity different from the first angular velocity about the rotation axis to deflect a second beam incident in the third plane on the second scanner into a second plane different from the third plane.Type: GrantFiled: October 1, 2019Date of Patent: November 17, 2020Assignee: BLACKMORE SENSORS & ANALYTICS, LLC.Inventors: Stephen C. Crouch, Edward Joseph Angus, Michelle Milvich
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Patent number: 10838209Abstract: A head-mounted imaging apparatus has a projector that is energizable to project image-bearing light and a light-conditioning element that directs and shapes the image-bearing light from the projector to form a real image plane. A lenslet array is positioned adjacent to the real image plane and optically disposed at substantially one focal length away from a curved mirror, wherein the surface of the curved mirror is substantially spherical. There is a beamsplitter in the path of light from the real image at the lenslet array and disposed to direct at least a portion of the light from the real image toward the curved mirror. The curved mirror directs light from the beamsplitter to form a virtual image for an observer who wears the head-mounted imaging apparatus.Type: GrantFiled: January 6, 2016Date of Patent: November 17, 2020Assignee: Vuzix CorporationInventors: Jose M. Mir, Robert J. Schultz
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Patent number: 10821764Abstract: A display body includes lattice lines that are arranged along a plane of incidence on which light is incident. The lattice lines have properties for forming a bright image with diffracted light of the incident light in an oblique view in which the plane of incidence is viewed obliquely, and absorbing some of the incident light. The surface of each of the lattice lines includes dispersed fine step parts that are repetitive in the direction in which the lattice lines extend. The steps have an antireflection function and form a dark image in a front view directly facing the plane of incidence.Type: GrantFiled: July 5, 2017Date of Patent: November 3, 2020Assignee: TOPPAN PRINTING CO., LTD.Inventor: Akira Nagano
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MEMS actuator, system having a plurality of MEMS actuators, and method for producing a MEMS actuator
Patent number: 10807859Abstract: Embodiments of the present invention provide an MEMS actuator with a substrate, at least one post attached to the substrate and a deflectable actuator body that is connected to the at least one post via at least one spring, wherein, during electrostatic, electromagnetic or magnetic force application, the actuator body takes a second position starting from a first position by a tilt-free translational movement, wherein the first position and the second position are different, and wherein in a top view of the MEMS actuator the actuator body is arranged outside an area spanned by the at least one post.Type: GrantFiled: July 6, 2017Date of Patent: October 20, 2020Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Peter Duerr, Detlef Kunze, Andreas Neudert, Martin Friedrichs -
Patent number: 10802184Abstract: A diffraction grating comprises a substrate (with index nsub) with a surface facing an optical medium (with index nmed<nsub), a dielectric or semiconductor layer of thickness t on the substrate surface (with index nL?nsub), and a set of diffractive elements on the layer (with index nR?nmed). The diffractive elements comprise a set of ridges protruding into the optical medium, which fills trenches between the ridges, and are characterized by a spacing ?, a width d, and a height h. Over an operational wavelength range, ?/2nsub<?<?/(nsub+nmed). An optical signal incident on the diffractive elements from within the substrate at an incidence angle exceeding the critical angle, nsub, nmed, nL, nR, ?, d, h, and t result in wavelength-dependent, first-order diffraction efficiency of the grating greater than a prescribed level over the operational wavelength range for both s- and p-polarized optical signals.Type: GrantFiled: April 28, 2015Date of Patent: October 13, 2020Assignee: II-VI Delaware Inc.Inventors: Christoph M. Greiner, Thomas W. Mossberg, Dmitri Iazikov