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公开(公告)号：US12066367B2
公开(公告)日：2024-08-20
申请号：US17202341
申请日：2021-03-15
Applicant: Brigham Young University
Inventor： Daniel Smalley , Braden Huffman , Stephen Griffith
IPC: G01N15/0205 , B25J7/00
CPC classification number: G01N15/0205 , B25J7/00 , G01N2015/025
Abstract: Time multiplexing an electromagnetic trap beam may be used to generate trap shapes/geometries to trap one or more particles with one electromagnetic beam by directing the electromagnetic beam at a pattern of different locations with sufficient rapidity to form an effective shape/geometry. Additionally, multiplexing an electromagnetic trap beam may be used to shutter trapping electromagnetic radiation to protect a viewer, use the same beam for multiple functions, move and organize particles, and generate illumination effects.
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公开(公告)号：US11428890B2
公开(公告)日：2022-08-30
申请号：US16353787
申请日：2019-03-14
Applicant: Brigham Young University
Inventor： Daniel Smalley
Abstract: A method and system are disclosed for using circular symmetry to eliminate the angle limitations of an optical axis in a scanned aperture holography system. A Room-sized Holography System may be a scanned aperture holographic video display and may comprise a rotating platform, a telescope comprising a first lens and a second lens, and scanners at the Fourier plane where the focal length of the first lens and the second lens meet. The platform may rotate around an axis aligned with a spatial light modulator. When the platform rotates, the scanners rotate, thereby de-rotating a SAW image. The second lens may be a spherical reflective surface for redirecting light from the spatial light modulator, having passed through the first lens and reflected off a mirror-scanner, toward a user's eyes. The user may be on a chair above the spatial light modulator, wherein the chair is configured to rotate with the spatial light modulator.
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公开(公告)号：US10474101B2
公开(公告)日：2019-11-12
申请号：US15955646
申请日：2018-04-17
Applicant: Brigham Young University
Inventor： Daniel Smalley
Abstract: A method and system for recycling signals in a leaky mode device for a holographic display or other application. A leaky mode device comprises at least a first transducer, a substrate, and a second transducer. The first transducer may be configured to receive an input signal from a signal arbiter, which forwards to the first transducer as an input signal either a new input signal or a recycled input signal (or some combination of the two). The first transducer converts the received input signal to a SAW (surface acoustic wave) and transmits the SAW through the substrate to the second transducer, which converts the received SAW to an output signal, and forwards the output signal to an amplifier, which amplifies the output signal (now a “recycled” signal) and forwards to the signal arbiter. This system facilitates persistence for points in a holographic display without the need for continually rewriting to leaky mode devices.
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公开(公告)号：US20190224916A1
公开(公告)日：2019-07-25
申请号：US16255642
申请日：2019-01-23
Applicant: Brigham Young University
Inventor： Daniel Smalley
IPC: B29C64/264 , G21K1/00 , B29C64/205 , B29C64/307
Abstract: A system for three-dimensional (3D) optical trap printing (OTP) comprises a first particle susceptible to being cured by a light beam, a first light source to generate a trapping light beam to trap the particle, and a second light source to generate a curing light beam to cure the first particle. Using scanning and other optics, the trapping light beam may move the first particle to a desired printing location at which the curing light beam may cure the first particle, thereby adding the first particle to a printed structure. Using OTP, structures may be printed in any orientation, with or without support structures. Additionally, OTP allows for printing composite materials, high resolution color printing, printing of complex structures without sacrificial filler material, simultaneous printing of multiple particles, and combining particles at a print location.
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公开(公告)号：US20190113887A1
公开(公告)日：2019-04-18
申请号：US15955646
申请日：2018-04-17
Applicant: Brigham Young University
Inventor： Daniel Smalley
CPC classification number: G03H1/2294 , G02F1/011 , G03H1/0005 , G03H1/02 , G03H2001/0088 , G03H2001/0224 , G03H2225/21 , H03H9/02551 , H03H9/02559 , H03H9/25
Abstract: A method and system for recycling signals in a leaky mode device for a holographic display or other application. A leaky mode device comprises at least a first transducer, a substrate, and a second transducer. The first transducer may be configured to receive an input signal from a signal arbiter, which forwards to the first transducer as an input signal either a new input signal or a recycled input signal (or some combination of the two). The first transducer converts the received input signal to a SAW (surface acoustic wave) and transmits the SAW through the substrate to the second transducer, which converts the received SAW to an output signal, and forwards the output signal to an amplifier, which amplifies the output signal (now a “recycled” signal) and forwards to the signal arbiter. This system facilitates persistence for points in a holographic display without the need for continually rewriting to leaky mode devices.
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Patent Agency Ranking
公开(公告)号：US20190212518A1
公开(公告)日：2019-07-11
申请号：US16353787
申请日：2019-03-14
Applicant: Brigham Young University
Inventor： Daniel Smalley
CPC classification number: G02B7/005 , G02B26/105 , G02B26/127
Abstract: A method and system are disclosed for using circular symmetry to eliminate the angle limitations of an optical axis in a scanned aperture holography system. A Room-sized Holography System may be a scanned aperture holographic video display and may comprise a rotating platform, a telescope comprising a first lens and a second lens, and scanners at the Fourier plane where the focal length of the first lens and the second lens meet. The platform may rotate around an axis aligned with a spatial light modulator. When the platform rotates, the scanners rotate, thereby de-rotating a SAW image. The second lens may be a spherical reflective surface for redirecting light from the spatial light modulator, having passed through the first lens and reflected off a mirror-scanner, toward a user's eyes. The user may be on a chair above the spatial light modulator, wherein the chair is configured to rotate with the spatial light modulator.
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公开(公告)号：US20180375490A1
公开(公告)日：2018-12-27
申请号：US16032951
申请日：2018-07-11
Applicant: Brigham Young University
Inventor： Daniel Smalley
Abstract: A method and system for using laser-induced structures to direct light to exit the bottom of a leaky mode device, and further to divide leaky mode light into multiple orders, and to implement one or more pulsing/strobing patterns such that a field of view is increased for a viewer, or the view zone is increased for a viewer. A leaky mode device may comprise a substrate, a surface acoustic wave (“SAW”) transducer, a waveguide having a higher refractive index than the substrate, an input region for input light, and laser induced structures such as grating. The SAW transducer may be positioned on a top surface of the substrate, and may be configured to emit a SAW wave to propagate across the substrate. The waveguide may be positioned below the SAW. The input wave region may be configured to couple light onto the waveguide. When light is coupled onto the waveguide, the refractive index may change such that the light in the waveguide exits the waveguide as leaky mode light and interacts with the laser-induced grating, which is below the waveguide. The laser-induced grating is configured to divide the leaky mode light into multiple orders, each bent at a different angle.
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公开(公告)号：US10129517B2
公开(公告)日：2018-11-13
申请号：US14959779
申请日：2015-12-04
Applicant: BRIGHAM YOUNG UNIVERSITY
Inventor： Daniel Smalley , Kenny Squire
IPC: G02B27/22 , H04N13/04 , H04N13/388 , G03B21/00
Abstract: A system includes a particle configured for emitting light in response to stimulation by a light beam, a first light source configured for generating a first light beam that traps the particle in a potential well created by the light beam in air, and a second light source configured for generating a second light beam that stimulates the particle to emit emission light.
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公开(公告)号：US20250052659A1
公开(公告)日：2025-02-13
申请号：US18767852
申请日：2024-07-09
Applicant: Brigham Young University
Inventor： Daniel Smalley , Braden Huffman , Stephen Griffith
IPC: G01N15/0205 , B25J7/00
Abstract: Time multiplexing an electromagnetic trap beam may be used to generate trap shapes/geometries to trap one or more particles with one electromagnetic beam by directing the electromagnetic beam at a pattern of different locations with sufficient rapidity to form an effective shape/geometry. Additionally, multiplexing an electromagnetic trap beam may be used to shutter trapping electromagnetic radiation to protect a viewer, use the same beam for multiple functions, move and organize particles, and generate illumination effects.
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公开(公告)号：US10739665B2
公开(公告)日：2020-08-11
申请号：US16032951
申请日：2018-07-11
Applicant: Brigham Young University
Inventor： Daniel Smalley
Abstract: A method and system for using laser-induced structures to direct light to exit the bottom of a leaky mode device, and further to divide leaky mode light into multiple orders, and to implement one or more pulsing/strobing patterns such that a field of view is increased for a viewer, or the view zone is increased for a viewer. A leaky mode device may comprise a substrate, a surface acoustic wave (“SAW”) transducer, a waveguide having a higher refractive index than the substrate, an input region for input light, and laser induced structures such as grating. The SAW transducer may be positioned on a top surface of the substrate, and may be configured to emit a SAW wave to propagate across the substrate. The waveguide may be positioned below the SAW. The input wave region may be configured to couple light onto the waveguide. When light is coupled onto the waveguide, the refractive index may change such that the light in the waveguide exits the waveguide as leaky mode light and interacts with the laser-induced grating, which is below the waveguide. The laser-induced grating is configured to divide the leaky mode light into multiple orders, each bent at a different angle.
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