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公开(公告)号：EP3834002A2
公开(公告)日：2021-06-16
申请号：EP19836131.3
申请日：2019-11-08
Applicant: The Charles Stark Draper Laboratory, Inc. , Byrnes, Steven J. , Spector, Steven J. , Moebius, Michael G.
Inventor： BYRNES, Steven J. , SPECTOR, Steven J. , MOEBIUS, Michael G.
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公开(公告)号：WO2020086951A1
公开(公告)日：2020-04-30
申请号：PCT/US2019/058038
申请日：2019-10-25
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor： MOEBIUS, Michael G. , SPECTOR, Steven J. , BYRNES, Steven J. , BESSETTE, Christopher , LENNOX, Scott Evan , SINCLAIR, Matthew A. , ROGOMENTICH, Francis J.
Abstract: A LiDAR system includes an array of optical emitters, an objective lens optically coupling each optical emitter to a respective unique portion of a field of view, an optical switching network coupled between a laser and the array of optical emitters and a controller coupled to the optical switching network and configured to cause the optical switching network to route light from the laser to a sequence of the optical emitters according to a dynamically varying temporal pattern and to vary the temporal pattern in a way that reduces risk of eye injury from the laser light.
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公开(公告)号：WO2018183504A1
公开(公告)日：2018-10-04
申请号：PCT/US2018/024853
申请日：2018-03-28
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor： REGISTER, Joseph J. , CALLAHAN, Dennis M. , MOEBIUS, Michael G. , BYRNES, Steven J. , FAVALORA, Gregg E. , FRANK, Ian W.
CPC classification number: G02F1/335 , G02B6/0045 , G02B6/005 , G02B6/0078 , G02B6/105 , G02B6/12004 , G02B6/12007 , G02B27/225 , G02B2006/0098 , G02B2006/12085 , G02B2006/12104 , G02B2006/12107 , G02F1/0353 , G02F1/125 , G02F2201/05 , G02F2201/18 , G02F2201/302 , G02F2201/34 , G02F2203/023 , G02F2203/07 , G02F2203/22 , G02F2203/24 , G02F2203/28 , G02F2203/58 , G03H1/02 , G03H1/2294 , G03H2001/0224 , G03H2001/2292 , G03H2223/16 , G03H2223/17 , G03H2225/11 , G03H2225/21 , G03H2225/34 , G03H2225/36 , G03H2225/55 , G10K11/002 , G10K11/178 , G10K11/17873 , G10K11/17875 , G10K11/36
Abstract: An electro-holographic light field generator device comprises surface acoustic wave (SAW) optical modulators arranged in different directions. Specifically, some embodiments have SAW modulators arranged in pairs, nose-to-nose with each other, and have output couplers that provide face-fire light emission. These SAW modulators also possibly include SAW sense transducers and/or viscoelastic surface material to reduce crosstalk.
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4.发明申请
公开(公告)号：WO2019108578A1
公开(公告)日：2019-06-06
申请号：PCT/US2018/062725
申请日：2018-11-28
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor： MOEBIUS, Michael G. , BYRNES, Steven J. , SPECTOR, Steven J. , ROGOMENTICH, Francis J. , SINCLAIR, Matthew A.
IPC: G02B6/124
CPC classification number: G02B6/34 , G02B6/124 , G02B27/0037 , G02B2006/12107 , G02B2006/12147
Abstract: A coupling interface arrangement is described for a photonic integrated circuit (PIC) device. The PIC includes an interface coupling surface having optical grating elements arranged to form optical output locations that produce corresponding light output beams. A coupling lens couples the light output beams into a conjugate plane at a far-field scene characterized by one or more optical aberrations that degrade optical resolution of the light outputs. The optical grating elements are configured to correct for the one or more optical aberrations.
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公开(公告)号：WO2019055982A1
公开(公告)日：2019-03-21
申请号：PCT/US2018/051501
申请日：2018-09-18
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor： BYRNES, Steven J. , HOLLMANN, Joseph
IPC: G16H30/20
CPC classification number: A61B6/032 , A61B5/0073 , A61B5/0097 , A61B6/501 , A61B6/5205 , A61B8/15 , A61B8/4477 , A61B8/4494 , G01N21/1717 , G01S15/8952 , G01S15/8968 , G02B27/12 , G16H30/20 , H01S3/1666 , H01S3/302
Abstract: A system is described for multi-frequency ultrasonically-encoded tomography of a target object. One or more probe inputs generate probe input signals to the target object. An ultrasound transducer array is placed on the outer surface of the target object and has multiple ultrasound transducers each generating a different time-dependent waveform to form a plurality of ultrasound input signals to a target probe volume within the target object. One or more sensors sense tomography output signals from the target probe volume, wherein the tomography output signals contain an interaction component generated by interaction of the probe input signals with the ultrasound input signals. A tomography analysis of the tomography output signals is performed to create a three-dimensional object map representing structural and/or functional characteristics of the target object.
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Patent Agency Ranking
公开(公告)号：WO2019055981A1
公开(公告)日：2019-03-21
申请号：PCT/US2018/051499
申请日：2018-09-18
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor： BYRNES, Steven J. , HOLLMANN, Joseph , FREEMAN, Daniel K.
IPC: G16H30/20
CPC classification number: A61B6/032 , A61B5/0073 , A61B5/0097 , A61B6/501 , A61B6/5205 , A61B8/15 , A61B8/4477 , A61B8/4494 , G01N21/1717 , G01S15/8952 , G01S15/8968 , G02B27/12 , G16H30/20 , H01S3/1666 , H01S3/302
Abstract: A system is described for multi-frequency ultrasonically-encoded tomography of a target object. One or more probe inputs generate probe input signals to the target object. An ultrasound transducer array is placed on the outer surface of the target object and has multiple ultrasound transducers each generating a different time-dependent waveform to form a plurality of ultrasound input signals to a target probe volume within the target object. One or more sensors sense tomography output signals from the target probe volume, wherein the tomography output signals contain an interaction component generated by interaction of the probe input signals with the ultrasound input signals. A tomography analysis of the tomography output signals is performed to create a three-dimensional object map representing structural and/or functional characteristics of the target object.
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公开(公告)号：WO2018218106A1
公开(公告)日：2018-11-29
申请号：PCT/US2018/034570
申请日：2018-05-25
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor： FRANK, Ian Ward , KORN, Jeffrey A. , BYRNES, Steven J. , CALLAHAN, Dennis M., Jr.
CPC classification number: G02F1/11 , G02F1/125 , G02F1/335 , G02F2203/24 , G03H1/2294 , G03H2001/0224 , G03H2225/21
Abstract: A system and method for improving spatial light modulator (SLM) devices such as Surface Acoustic Wave (SAW) modulators are disclosed. The SAW modulators can improved angular bandwidth and suppress unwanted diffractive orders. In one example, a coating layer(s) is applied to a proximal face of the SAW modulator to improve coupling of guided modes into leaky modes. Additionally, applying coating layers(s) such as a hybrid anti-reflective/highly reflective coating to an exit face of the SAW modulator can suppress transmission of undesired diffractive order(s).
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公开(公告)号：WO2020097574A2
公开(公告)日：2020-05-14
申请号：PCT/US2019/060633
申请日：2019-11-08
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC. , BYRNES, Steven J. , SPECTOR, Steven J. , MOEBIUS, Michael G.
Inventor： BYRNES, Steven J. , SPECTOR, Steven J. , MOEBIUS, Michael G.
Abstract: A LiDAR system (300) has a field of view (320) and includes a polarization-based waveguide splitter (308). The splitter (308) includes a first splitter port (306), a second splitter port (312) and a common splitter port (316). A laser (302) is optically coupled to the first splitter port (306) via a single-polarization waveguide (304). An objective lens (334) optically couples each optical emitter (326-330) of an array of optical emitters (322) to a respective unique portion of the field of view (320). An optical switching network (340) is coupled via respective dual-polarization waveguides (338) between the common splitter port (316) and the array of optical emitters (322). An optical receiver (314) is optically coupled to the second splitter port (312) via a dual-polarization waveguide (310) and is configured to receive light (336) reflected from the field of view (320). A controller (342), coupled to the optical switching network (340), is configured to cause the optical switching network (340) to route light from the laser (302) to a sequence of the optical emitters (326-330) according to a temporal pattern.
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公开(公告)号：WO2019067385A3
公开(公告)日：2019-04-04
申请号：PCT/US2018/052531
申请日：2018-09-25
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor： BYRNES, Steven J. , FAVALORA, Gregg E. , FRANK, Ian Ward , KOPA, Anthony , KORN, Jeffrey A. , MOEBIUS, Michael G.
Abstract: A light steering system and method for diffractive steering of electromagnetic radiation such as visible light is disclosed. Embodiments of the light steering system include leaky-mode SAW modulators as light modulator devices. The SAW modulators preferably include reflective diffractive gratings. The gratings are mounted to/patterned upon an exit face that opposes an exit surface of the SAW modulator, in one example. Steering of light signals emitted from the SAW modulators in these systems can be accomplished by varying wavelength of light signals introduced to the SAW modulators, and/or by varying frequency of RF drive signals applied to the SAW modulators. In addition, light field generators that incorporate SAW modulators of the proposed light steering system within displays of the light field generators are also disclosed.
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公开(公告)号：WO2019055980A1
公开(公告)日：2019-03-21
申请号：PCT/US2018/051498
申请日：2018-09-18
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor： BYRNES, Steven J. , HOLLMANN, Joseph
IPC: G16H30/20
CPC classification number: A61B6/032 , A61B5/0073 , A61B5/0097 , A61B6/501 , A61B6/5205 , A61B8/15 , A61B8/4477 , A61B8/4494 , G01N21/1717 , G01S15/8952 , G01S15/8968 , G02B27/12 , G16H30/20 , H01S3/1666 , H01S3/302
Abstract: A system is described for multi-frequency ultrasonically-encoded optical tomography of target tissue. A light source generates light input signals to the target tissue. An ultrasound transducer array has ultrasound transducers each generating a different time-dependent waveform to form a plurality of ultrasound input signals to an imaging volume within the target tissue. An optical sensor senses scattered light signals from the imaging volume, wherein the scattered light signals include light input signals modulated by acousto-optic interactions with the ultrasound input signals. Spectral analysis of the scattered light signals is performed to create a three-dimensional image map representing biomarker characteristics of the target tissue.
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