Patents Examined by Jennifer D. Carruth
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Patent number: 11372235Abstract: A deformable mirror has a mirror front face and a mirror back exposed surface. An elastomeric support structure is connected to the mirror back exposed surface. The elastomeric support structure includes a multitude of microchannels wherein the microchannels have a closed end located proximate the mirror back exposed surface and an open end located away from the mirror back exposed surface. A fluid pressure source is connected to the open end of the microchannels. A power source and control system are connected to the fluid pressure source.Type: GrantFiled: July 25, 2019Date of Patent: June 28, 2022Assignee: Lawrence Livermore National Security, LLCInventors: Andrew J. Pascall, Kerry G. Krauter
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Patent number: 11365116Abstract: The present invention is to provide an optical scanner module. An optical scanner apparatus scans laser light by oscillating a mirror with a piezoelectric element. A package that mounts the optical scanner apparatus and electrically is connected to a substrate via a connector. A package cover that is fixed to the package and seals the optical scanner apparatus so that the optical scanner apparatus is not visually recognized from an outside. The package and the package cover are bonded by a heat curing adhesive agent. A vent for releasing gas in a space where the optical scanner apparatus is sealed is formed in the package cover, and the vent is blocked by ultraviolet curing resin.Type: GrantFiled: April 15, 2020Date of Patent: June 21, 2022Assignee: MITSUMI ELECTRIC CO., LTD.Inventors: Tsukasa Yamada, Takahiro Wakasugi, Shinobu Kasahara
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Patent number: 11366426Abstract: A three-dimensional light modulator, of which the pixels are combined to form modulation elements. Each modulation element can be coded with a preset discrete value such that three-dimensionally arranged object points can be holographically reconstructed. The light modulator is characterized in that assigned to the pixels of the modulator are beam splitters or beam combiners which, for each modulation element, combine the light wave parts modulated by the pixels by means of refraction or diffraction on the output side to form a common light beam which exits the modulation element in a set propagation direction.Type: GrantFiled: March 18, 2019Date of Patent: June 21, 2022Assignee: SEEREAL TECHNOLOGIES S.A.Inventors: Gerald Futterer, Norbert Leister, Ralf Haussler, Grigory Lazarev
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Patent number: 11360247Abstract: A portable detection system comprises an energy source configured to transmit energy, a retroreflective article, a detector configured to sense retroreflective energy produced by interaction of the energy transmitted from the source and the retroreflective article, and an indicator that indicates the detection of the retroreflective energy, wherein at least one of the energy source and the detector are configured to be worn by a user.Type: GrantFiled: October 25, 2018Date of Patent: June 14, 2022Assignee: 3M Innovative Properties CompanyInventors: Michael A. McCoy, John Allen Wheatley, Gilles J. Benoit, Charles Allen Shaklee
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Patent number: 11340470Abstract: An optical unit with a shake correction function may include an optical module having an optical element and an image pickup element, a movable body holding the optical module, a swing support mechanism swingably supporting the movable body, a fixed body supporting the movable body through the swing support mechanism, a shake correction drive mechanism structured to swing the movable body, and a stopper mechanism structured to restrict a movable range of the movable body. The stopper mechanism may include a spacer member in the movable body which includes a stopper protruded part extended to an opposite side to an object to be photographed with respect to the image pickup element, and a stopper member to abut with the stopper protruded part of the spacer member. The spacer member may be fixed to a member different from the optical module in the movable body.Type: GrantFiled: March 1, 2019Date of Patent: May 24, 2022Assignee: NIDEC SANKYO CORPORATIONInventor: Shinji Minamisawa
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Patent number: 11333880Abstract: A coaxial-macro-scanner-system, including a light-source, a light-detector, and a rotatable-mirror-system to optically isolate an optical-path between the light-source and light-detector, the rotatable-mirror-system emitting a transmitting-light-beam, generated by the light-source, with a first-mirror in a predefined-plane into an environment, and to receive a receiving-light-beam, representing components of the transmitting-light-beam reflected/dispersed by the environment, with a second-mirror in the same-plane and to reflect it onto the light-detector, both the first-mirror, the second-mirror and an axis of rotation about which the second-mirror is rotated being aligned at a right-angle to the predefined-plane, the first-mirror being aligned at a right-angle to the predefined-plane and being in a region of the rotation-axis of the second-mirror so that the first-mirror and the second-mirror rotate about the common-rotation-axis, and an angle under which the first-mirror and the second-mirror are disposed rType: GrantFiled: December 12, 2019Date of Patent: May 17, 2022Assignee: Robert Bosch GmbHInventors: Annemarie Holleczek, Tobias Peterseim
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Patent number: 11333912Abstract: A privacy glazing structure may include an electrically controllable optically active material, such as a liquid crystal material, sandwiched between a flexible substrate and a rigid substrate. The flexible substrate and the rigid substrate may each have a conductive layer deposited on the surface facing the optically active material. The flexible substrate may be bonded about its perimeter to the rigid substrate and may be sufficiently flexible to conform to non-planarity of the rigid substrate. As a result, the flexible substrate may adopt the surface contour of the rigid substrate to maintain a uniform thickness of optically active material between the flexible substrate and the rigid substrate.Type: GrantFiled: May 11, 2020Date of Patent: May 17, 2022Assignee: Cardinal IG CompanyInventors: Andrew DeMiglio, Eric Bjergaard, Hari Atkuri, Nicholas Schleder
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Patent number: 11327296Abstract: A light deflector includes a reflector having a reflection plane, a pair of movable parts that support the reflector, a supporting unit configured to support the pair of movable parts, a piezoelectric drive circuit provided for the pair of movable parts, the piezoelectric drive circuit being configured to drive the reflector in response to waveform of driving voltage, and circuitry configured to output two different driving voltages to the piezoelectric drive circuit. Each one of the two different driving voltages has waveform, and the waveform of each one of the two different driving voltages includes, in one cycle, a step-up period where voltage increases, a step-down period where voltage decreases, a first constant-voltage period where voltage is constant after the step-up period and before the step-down period, and a second constant-voltage period where voltage is constant before the step-up period and after the step-down period.Type: GrantFiled: May 12, 2020Date of Patent: May 10, 2022Assignee: Ricoh Company, Ltd.Inventor: Akitoshi Mochida
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Patent number: 11320785Abstract: A holographic optical element and a manufacturing method thereof, an image reconstruction method, and augmented reality glasses are disclosed. The holographic optical element includes a substrate, and a recording material layer in which at least two groups of interference fringes are recorded; each group includes a first interference fringe formed by a first signal light and a first reference light respectively incident from opposite sides of the recording material layer, and a second interference fringe formed by a second signal light and a second reference light respectively incident from opposite sides of the recording material layer; the second signal light passes through a lens before incidence; incident angles of the first signal light and the second reference light are equal; incident directions of the first signal light corresponding to respective groups are different, and focal lengths of the lenses are not equal.Type: GrantFiled: May 24, 2019Date of Patent: May 3, 2022Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Hongshu Zhang, Hebin Zhao, Yun Qiu, Dan Wang
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Patent number: 11320784Abstract: Provided are methods of processing a holographic image and apparatuses using the methods. A method includes obtaining image data with respect to a three-dimensional (3D) object, obtaining interference patterns in a computer-generated hologram (CGH) plane by performing a Fourier transform on the image data, and generating a CGH with respect to the 3D object based on the interference patterns, wherein the Fourier transform is performed based on a focal length of an eye lens of an observer.Type: GrantFiled: December 17, 2019Date of Patent: May 3, 2022Assignee: SAMSUNG ELECTRONICS CO.. LTD.Inventors: Young Kim, Wontaek Seo, Jungkwuen An, Kanghee Won, Hongseok Lee, Hoon Song, Chilsung Choi
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Patent number: 11314079Abstract: Provided is an optical deflector that detects an arbitrary deflection angle of a mirror part while avoiding the increase in the length of an optical sensor for detection of the deflection angle. An optical deflector 3 comprises: a mirror part 30 that has a flat reflection surface 38 and a grooved reflection surface 39, each of the flat reflection surface 38 and the grooved reflection surface 39 reflecting an incident light; and an actuator 32a to 32d that reciprocally turns the mirror part 30 about a rotation axis 36. The grooved reflection surface 39 has a plurality of longitudinal grooves 41 that extends parallel to the rotation axis 36. Each longitudinal groove 41 has a facing inclination surface 42a, 42b that is parallel to the rotation axis 36 and that has at least an opening-side portion of a facing inclination surface of a V-groove.Type: GrantFiled: June 2, 2020Date of Patent: April 26, 2022Assignee: STANLEY ELECTRIC CO., LTD.Inventor: Mamoru Miyachi
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Patent number: 11307534Abstract: There is provided a holographic projection system arranged to project light to a rectangular replay field. The holographic projection system comprises: a spatial light modulator, comprising an array of pixels, arranged to receive a computer-generated hologram and output spatially-modulated light forming a holographic reconstruction at the rectangular replay field, wherein each pixel is rectangular; and a light source arranged to illuminate the plurality of pixels to form the spatially-modulated light forming a holographic reconstruction at the replay field, wherein the rectangular replay field is spatially separated from the spatial light modulator and the aspect ratio of the rectangular replay field is substantially equal to the aspect ratio of each pixel but orthogonally orientated.Type: GrantFiled: October 27, 2017Date of Patent: April 19, 2022Assignee: DUALITAS LTDInventor: Jamieson Christmas
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Patent number: 11307405Abstract: This invention is provided with: a light source; a light scanning mirror; a measurement mechanism for measuring a change in the intensity of light reflected from an eyeball as time elapses through the scanning of at least a surface of the pupil with a light beam by means of the light scanning mirror; a sampling mechanism for sampling the intensity of light reflected from the pupil from the measured change in the intensity of the reflected light as time elapses; and a mechanism for detecting the size and the position of the pupil by synchronizing the sampled intensity of light reflected from the pupil, and the scanning time during which the surface of the eyeball is scanned; and an image generating mechanism for forming an image on the retina of the eyeball by projecting a light beam for generating an image onto the pupil in the detected position while scanning.Type: GrantFiled: October 1, 2019Date of Patent: April 19, 2022Assignee: UNIVERSITY OF FUKUIInventors: Toshio Katsuyama, Shoji Yamada
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Patent number: 11300778Abstract: A MEMS device includes a body pivoting around a pivot axis, a support, and a suspension structure mechanically coupling the body to the support. The suspension structure includes a torsion element defining the pivot axis, and first and second spring elements extending with an angle relative to the pivot axis on opposing sides of the torsion element so that a distance between at least portions of the first and second spring elements is changing in the direction of the pivot axis. The extension of the first and second spring elements in the direction of the pivot axis is larger than the extension of the torsion element in the direction of the pivot axis.Type: GrantFiled: May 17, 2019Date of Patent: April 12, 2022Inventors: Stephan Gerhard Albert, Franz Michael Darrer, Marcus Edward Hennecke, Hendrikus Van Lierop
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Patent number: 11300780Abstract: A scanning optical device includes a scanning lens, a deflector, and a frame configured to support the scanning lens and the deflector. The deflector includes a substrate, a motor fixed to the substrate, and a polygonal mirror rotary driven by the motor. The scanning lens is arranged such that a longitudinal direction thereof is oriented in a main scanning direction of the deflector. The frame includes a supporting part configured to support the scanning lens. The supporting part is located such that the substrate and at least a portion of the supporting part overlap when viewed in a rotation axis direction of the motor.Type: GrantFiled: July 21, 2020Date of Patent: April 12, 2022Assignee: Brother Kogyo Kabushiki KaishaInventors: Kazuhiro Hayakawa, Hitoshi Fujino, Yoshifumi Nakamura
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Patent number: 11300779Abstract: Disclosed herein is a compact beam scanner assembly that includes an ellipsoidal reimaging mirror.Type: GrantFiled: May 4, 2020Date of Patent: April 12, 2022Assignee: AEYE, INC.Inventors: Luis Carlos Dussan, David R. Demmer, John Stockton, Allan Steinhardt, David Cook
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Patent number: 11294178Abstract: A transparent holographic diffuser screen that diffracts the light beams of a digital light projector, which focuses a real image in the plane of the aforementioned transparent holographic diffuser screen, which redirects the light to an eyebox at a pre-determined viewing position generating as a set of diffracted diffused beams that can be seen from the eyebox as a flat in-plane image. The transparent holographic diffuser screen may be used to provide either a highest luminance or a largest eyebox. Potential applications include use for automotive applications, which may include applications for displaying videos, playing games, and video conference apps.Type: GrantFiled: August 30, 2021Date of Patent: April 5, 2022Assignee: LUMINIT LLCInventors: Fedor Dimov, Maung Myo Kyaw, John Trung Tran, Angela Liu
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Patent number: 11281007Abstract: A display device according to the present invention includes, along an optical path of image light emitted from an image light generating device, a first optical unit having positive power, a second optical unit having positive power and including a first diffraction element of a reflective type, a third optical unit having positive power, and a fourth optical unit having positive power and including a second diffraction element of a reflective type. The second optical unit includes a first light-transmitting member having optical power and provided at a first surface of the first diffraction element, and a light shielding member provided at a second surface of the first diffraction element.Type: GrantFiled: March 24, 2020Date of Patent: March 22, 2022Assignee: SEIKO EPSON CORPORATIONInventors: Mitsutaka Ide, Toshiyuki Noguchi
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Patent number: 11282540Abstract: There are provided holographic optical elements (HOEs) and methods of making the same. An example of such methods includes recording a first hologram in a contiguous holographic recording medium of the HOE. The first hologram may receive a beam of light and direct at least a portion of the beam into a light guide to form an incoupled beam. The method also includes recording a second hologram in the contiguous holographic recording medium. The second hologram may receive at least a portion of the incoupled beam and direct the portion of the incoupled beam out of the light guide to form an outcoupled beam. In addition, the method includes affixing the holographic recording medium to the light guide.Type: GrantFiled: January 9, 2020Date of Patent: March 22, 2022Assignee: Google LLCInventors: Shreyas Potnis, Jackie Lynn Mills, Timothy Paul Bodiya
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Retroreflective sheet having particles disposed between retroreflective elements and back face layer
Patent number: 11280941Abstract: A retroreflective sheet includes: a retroreflective layer (20) including a plurality of retroreflective elements (24) on one surface; a back face layer (40) provided to face the surface of the retroreflective layer (20) on the side of the retroreflective elements (24) and including a bonding portion (42) bonded to the retroreflective elements (24); and a plurality of particles (30) disposed between the retroreflective elements (24) and the back face layer (40). The bonding portion (42) is continuously formed to surround a plurality of capsule portions (46) in plan view. Voids (32) are formed between the retroreflective elements (24) and the back face layer (40) in the plurality of capsule portions (46).Type: GrantFiled: October 4, 2018Date of Patent: March 22, 2022Assignee: NIPPON CARBIDE INDUSTRIES CO., INC.Inventors: Toshiaki Shiomi, Chenyang Jiang