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公开(公告)号：US20200005097A1
公开(公告)日：2020-01-02
申请号：US16454998
申请日：2019-06-27
Applicant: The Charles Stark Draper Laboratory, Inc.
Inventor： Matthew A. Sinclair , Adam Kelsey , Paul Aaron Bohn , Stephanie L. Golmon , Francis J. Rogomentich , Juha-Pekka Laine , Buddy A. Clemmer , David A. Landis
Abstract: A potentially small, gimballed, multi-sensor system employs a shared aperture for at least some of the image sensors. Applications include intelligence, surveillance, target acquisition and reconnaissance (ISTAR), and guiding autonomous vehicles. The system can actively blend images from multiple spectral bands for clarity and interpretability, provide remote identification of objects and material, provide anomaly detection, control lasers and opto-mechanics for image quality, and use shared aperture using folded optics.
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公开(公告)号：US20200004001A1
公开(公告)日：2020-01-02
申请号：US16454988
申请日：2019-06-27
Applicant: The Charles Stark Draper Laboratory, Inc.
Inventor： Matthew A. Sinclair , Juha-Pekka Laine
IPC: G02B17/08
Abstract: A multi-band/multi-polarization reflective or catadioptric optical system yields differing effective focal lengths (EFLs) per band/polarization. This approach could be used to create an imaging system, for example. In such case, a sensor (imager, spectrometer, diode, etc.) is located at the one or more focal planes. On the other hand, it could also be used to create a projecting system or hybrid projecting and imaging system by locating an emitter such as an LED, laser, etc.) at the image or focal plane. The system employs polarizers and/or dichroic coatings nano patterns to create different focal lengths and/or fields of view using the same mirrors and/or lenses by, for example, including at least one dichroic coating optically in front of at least one additional mirror to separately reflect the different bands or polarizations.
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公开(公告)号：US20170372808A1
公开(公告)日：2017-12-28
申请号：US15685330
申请日：2017-08-24
Applicant: The Charles Stark Draper Laboratory, Inc.
Inventor： Alexander Gill , Steven J. Byrnes , Jennifer Choy , Christine Y. Wang , Matthew A. Sinclair , Adam Kelsey , David Johnson
Abstract: Improvements to atom interferometers. An improved atom interferometer has a single polarization-preserving fiber, coupled for propagation of beams of two Raman frequencies, and a parallel displacement beamsplitter for separating the laser beams into respective free-space-propagating parallel beams traversing at least one ensemble of atoms. A reflector generates one or more beams counterpropagating through the ensemble of atoms. Other improvements include interposing a beam-splitting surface common to a plurality of parallel pairs of beams counterpropagating through the ensemble of atoms, generating interference fringes between reflections of the beams to generate a detector signal; and processing the detector signal to derive at least one of relative phase and relative alignment between respective pairs of the counterpropagating beams.
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公开(公告)号：US09689682B1
公开(公告)日：2017-06-27
申请号：US15086566
申请日：2016-03-31
Applicant: The Charles Stark Draper Laboratory, Inc.
Inventor： Juha-Pekka J. Laine , Benjamin F. Lane , William W. Whitacre , Robin Mark Adrian Dawson , Charles A. McPherson, Jr. , Stephen P. Smith , Matthew A. Sinclair
CPC classification number: G01C21/025 , G01C21/005 , G01C21/30 , G06F17/30241 , G06F17/30259 , G06K9/00637 , G06K9/00664
Abstract: Scattered light in the sky (sky glow) from light sources at one or more known geographic locations is used as reference point(s), from which geographic location of a system observing the sky glow is automatically ascertained. The light is scattered by particulates in the atmosphere. An upward looking camera captures an image of the sky, including the sky glow. A search engine automatically searches a catalog of modeled or pre-stored sky glows for a model that matches the image. Each model is associated with a geographic location. The models characterize each sky glow, such as in terms of color, intensity, etc., as the sky glow would appear from the associated geographic location. If a matching model is found, within a predetermined match criterion, the system outputs the geographic location associated with the matching model. Optionally, the geographic location is used to select and display a map of the geographic location.
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公开(公告)号：US12235362B2
公开(公告)日：2025-02-25
申请号：US16663814
申请日：2019-10-25
Applicant: The Charles Stark Draper Laboratory, Inc.
Inventor： Michael G. Moebius , Steven J. Spector , Steven J. Byrnes , Christopher Bessette , Scott Evan Lennox , Matthew A. Sinclair , Francis J. Rogomentich
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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Patent Agency Ranking
公开(公告)号：US12066609B2
公开(公告)日：2024-08-20
申请号：US16454988
申请日：2019-06-27
Applicant: The Charles Stark Draper Laboratory, Inc.
Inventor： Matthew A. Sinclair , Juha-Pekka Laine
CPC classification number: G02B17/0888 , G02B17/061 , G02B17/0808 , G02B17/0856 , G02B27/141 , G02B27/142
Abstract: A multi-band/multi-polarization reflective or catadioptric optical system yields differing effective focal lengths (EFLs) per band/polarization. This approach could be used to create an imaging system, for example. In such case, a sensor (imager, spectrometer, diode, etc.) is located at the one or more focal planes. On the other hand, it could also be used to create a projecting system or hybrid projecting and imaging system by locating an emitter such as an LED, laser, etc.) at the image or focal plane. The system employs polarizers and/or dichroic coatings nano patterns to create different focal lengths and/or fields of view using the same mirrors and/or lenses by, for example, including at least one dichroic coating optically in front of at least one additional mirror to separately reflect the different bands or polarizations.
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7.发明申请公开(公告)号：US20190342500A1
公开(公告)日：2019-11-07
申请号：US16513986
申请日：2019-07-17
Applicant: The Charles Stark Draper Laboratory, Inc.
Inventor： Matthew T. Jamula , Matthew A. Sinclair , Benjamin F. Lane , Adam Parolin , Adam Kelsey
Abstract: A configurable optical baffling includes an outer housing positioned above a fixed platform and has an outer opening. An inner housing is layered below the outer housing and above the fixed platform and has inner openings and inner shaded sections. The outer opening includes an elongated sensing boresight having a longitudinal boresight axis and opposing ends. An outer boresight opening end is open to the light from the scene, and a reflecting end has a flat fold mirror that is configured to reflect light from the outer boresight opening in towards the inner housing so that the optical baffling is configured to receive light from the scene solely from a single look direction along the boresight axis, the single look direction being changeable by rotation of the outer housing.
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8.发明申请公开(公告)号：US20190162908A1
公开(公告)日：2019-05-30
申请号：US16202254
申请日：2018-11-28
Applicant: The Charles Stark Draper Laboratory, Inc.
Inventor： Michael G. Moebius , Steven J. Byrnes , Steven J. Spector , Francis J. Rogomentich , Matthew A. Sinclair
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：US10157692B2
公开(公告)日：2018-12-18
申请号：US15685330
申请日：2017-08-24
Applicant: The Charles Stark Draper Laboratory, Inc.
Inventor： Alexander Gill , Steven J. Byrnes , Jennifer Choy , Christine Y. Wang , Matthew A. Sinclair , Adam Kelsey , David Johnson
Abstract: Improvements to atom interferometers. An improved atom interferometer has a single polarization-preserving fiber, coupled for propagation of beams of two Raman frequencies, and a parallel displacement beamsplitter for separating the laser beams into respective free-space-propagating parallel beams traversing at least one ensemble of atoms. A reflector generates one or more beams counterpropagating through the ensemble of atoms. Other improvements include interposing a beam-splitting surface common to a plurality of parallel pairs of beams counterpropagating through the ensemble of atoms, generating interference fringes between reflections of the beams to generate a detector signal; and processing the detector signal to derive at least one of relative phase and relative alignment between respective pairs of the counterpropagating beams.
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公开(公告)号：US09952154B2
公开(公告)日：2018-04-24
申请号：US15402399
申请日：2017-01-10
Applicant: The Charles Stark Draper Laboratory, Inc.
Inventor： Matthew A. Sinclair , Adam Kelsey , Richard E. Stoner
CPC classification number: G01N21/6404 , G01B9/02015 , G01B9/02061 , G01B2290/55 , G01C19/58 , G01N21/645 , G01N2021/6463 , G01N2201/06113 , G01V7/00 , G21K1/006
Abstract: An atomic interferometer and methods for measuring phase shifts in interference fringes using the same. The atomic interferometer has a laser beam traversing an ensemble of atoms along a first path and an optical components train with at least one alignment-insensitive beam routing element configured to reflect the laser beam along a second path that is anti-parallel with respect to the first laser beam path. Any excursion from parallelism of the second beam path with respect to the first is rigorously independent of variation of the first laser beam path in yaw parallel to an underlying plane.
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