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公开(公告)号：US11994785B2
公开(公告)日：2024-05-28
申请号：US16891263
申请日：2020-06-03
Applicant: Raytheon Company
Inventor： Fabio Di Teodoro , Maurice J. Halmos
IPC: G02F1/29 , G01S7/481 , G01S17/26 , H04B10/548
CPC classification number: G02F1/292 , G01S7/4814 , G01S7/4815 , G01S7/4817 , G01S7/4818 , G01S17/26 , H04B10/548
Abstract: Methods and apparatus for optical beam steering including a laser to generate a beam having an optical frequency and an optical phase modulator (OPM) to impart a shift in the optical frequency of the beam from the laser. A dispersive optical element maps the shift in the optical frequency to a corresponding angle with respect to the dispersive optical element, which can comprise a diffraction grating.
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公开(公告)号：US11588551B2
公开(公告)日：2023-02-21
申请号：US17105368
申请日：2020-11-25
Applicant: Raytheon Company
Inventor： Maurice J. Halmos , Fabio Di Teodoro
IPC: H04B10/25 , G01S17/26 , G01S7/481 , H04B10/556
Abstract: A method includes generating, using a transmitter, an optical signal for each fiber incoherently combined in a fiber bundle. The method also includes transmitting the optical signal from each fiber as pulses at a target. The method further includes receiving, using a receiver array, the pulses of the optical signals and identifying one or more parameters of the target based on the pulses of the optical signals.
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公开(公告)号：US20200209635A1
公开(公告)日：2020-07-02
申请号：US16232184
申请日：2018-12-26
Applicant: RAYTHEON COMPANY
Inventor： Kyle Heideman , Tim P. Johnson , Todd O. Clatterbuck , John Edgecumbe , Fabio Di Teodoro , Maurice J. Halmos
Abstract: Spectral beam combining systems including a multi-element transform optic. In certain examples the multi-element transform optic includes a first cylindrical optical element having positive optical power in a first axis, a second optical element having negative optical power in the first axis, and a third toroidal optical element having positive optical power in the first axis and either positive or negative optical power in a second axis that is orthogonal to the first axis. The first and third optical elements are positioned on opposite sides of the second optical element and equidistant from the second optical element. The multi-element transform optic has an optical path length extending between a front focal plane and a back focal plane that is shorter than an effective focal length of the multi-element transform optic.
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公开(公告)号：US10261187B2
公开(公告)日：2019-04-16
申请号：US15150563
申请日：2016-05-10
Applicant: Raytheon Company
Inventor： Maurice J. Halmos
Abstract: Described embodiments provide a laser detection and ranging (LADAR) system. The LADAR system transmits a laser signal including a train of coherent pulses and receives a return signal based on the transmitted laser signal that is reflected from a target. The LADAR system forms one or more range bins of the return signal. Each range bin includes a train of coherent pulses formed based upon the transmitted laser signal. For each range bin, the LADAR system generates a phasogram associated with the train of coherent pulses. The phasogram is generated by determining a relative phase between the return signal and a reference signal. The LADAR system generates a vibration spectrum of the return signal based upon the generated phasogram.
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公开(公告)号：US20180267299A1
公开(公告)日：2018-09-20
申请号：US15176009
申请日：2016-06-07
Applicant: Raytheon Company
Inventor： David N. Sitter, JR. , Joseph Marron , Maurice J. Halmos , Joseph J. lchkhan , Justin S. Grayer , Gamze Erten
CPC classification number: G02B27/0068 , F41H13/005 , G01J1/0238 , G01J1/0242 , G01S7/4814 , G01S7/497 , G01S17/66 , G02B17/008 , G02B17/0663 , G02B26/06 , G06T7/521 , G06T2207/10032 , G06T2207/10048 , G06T2207/10141
Abstract: An apparatus includes a wavefront sensor configured to receive coherent flood illumination that is reflected from a remote object and to estimate wavefront errors associated with the coherent flood illumination. The apparatus also includes a beam director optically coupled to the wavefront sensor and having a telescope and an auto-alignment system. The auto-alignment system is configured to adjust at least one first optical device in order to alter a line-of-sight of the wavefront sensor. The wavefront errors estimated by the wavefront sensor include a wavefront error resulting from the adjustment of the at least one first optical device. The beam director could further include at least one second optical device configured to correct for the wavefront errors. The at least one second optical device could include at least one deformable mirror.
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Patent Agency Ranking
公开(公告)号：US20170269214A1
公开(公告)日：2017-09-21
申请号：US15072214
申请日：2016-03-16
Applicant: Raytheon Company
Inventor： Joseph Marron , Maurice J. Halmos , Justin S. Grayer , Gamze Erten , David N. Sitter, JR.
CPC classification number: G01S17/89 , F41H13/0062 , G01P3/36 , G01S7/4804 , G01S7/4812 , G01S7/4917 , G01S7/497 , G01S17/58 , G01S17/66 , H01S3/0071 , H04N5/33 , H04N7/183
Abstract: A laser beam projection system builds on a coherent imaging to project a tightly focused laser beam onto a remote object. Coherent flood illumination and local oscillator (LO) illumination are based on one master oscillator. The coherent flood illumination is directed toward a remote object, with a second laser beam directed onto an aimpoint on the same object. A Doppler sensor provides Doppler shift data used to produce Doppler-shifted LO illumination received by a focal plane array, together with the return flood illumination. Interference between the Doppler-shifted LO illumination and the return flood illumination facilitates imaging the object despite the velocity. The wavefront error of the flood illumined remote object image is computed and compared to the desired wavefront of the second laser beam at the aimpoint, with the difference applied to a deformable mirror to shape the second laser beam wavefront for obtaining a desired aimpoint intensity profile.
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公开(公告)号：US20170192094A1
公开(公告)日：2017-07-06
申请号：US14988476
申请日：2016-01-05
Applicant: Raytheon Company
Inventor： Joseph Marron , Maurice J. Halmos , Justin S. Grayer , David N. Sitter, JR. , Gamze Erten
CPC classification number: G01S17/89 , F41H13/005 , G01S7/4812 , G01S17/58
Abstract: A coherent imaging system produces coherent flood illumination directed toward a remote object and local oscillator (LO) illumination derived based on a same master oscillator as the flood illumination. A Doppler sensor receives the LO illumination and a return of flood illumination reflected off the object. Doppler shift data from the Doppler sensor, corresponding to a longitudinal velocity of the object relative to the imaging system, is used to produce Doppler-shifted LO illumination received by a low bandwidth, large format focal plane array (FPA), together with the return illumination from the object. Interference between the Doppler-shifted LO illumination and the return illumination facilitates producing an image of the object with the low bandwidth FPA despite the longitudinal velocity. Pixel intensities from the FPA are integrated over a period approaching the maximum interference frequency. The Doppler sensor and FPA may concurrently process return for a high energy laser target spot.
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公开(公告)号：US20220166512A1
公开(公告)日：2022-05-26
申请号：US17105368
申请日：2020-11-25
Applicant: Raytheon Company
Inventor： Maurice J. Halmos , Fabio Di Teodoro
IPC: H04B10/25 , H04B10/556 , G01S7/481 , G01S17/26
Abstract: A method includes generating, using a transmitter, an optical signal for each fiber incoherently combined in a fiber bundle. The method also includes transmitting the optical signal from each fiber as pulses at a target. The method further includes receiving, using a receiver array, the pulses of the optical signals and identifying one or more parameters of the target based on the pulses of the optical signals.
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公开(公告)号：US20210382370A1
公开(公告)日：2021-12-09
申请号：US16891263
申请日：2020-06-03
Applicant: Raytheon Company
Inventor： Fabio Di Teodoro , Maurice J. Halmos
Abstract: Methods and apparatus for optical beam steering including a laser to generate a beam having an optical frequency and an optical phase modulator (OPM) to impart a shift in the optical frequency of the beam from the laser. A dispersive optical element maps the shift in the optical frequency to a corresponding angle with respect to the dispersive optical element, which can comprise a diffraction grating.
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公开(公告)号：US20210255325A1
公开(公告)日：2021-08-19
申请号：US17232863
申请日：2021-04-16
Applicant: Raytheon Company
Inventor： Joseph Marron , Maurice J. Halmos , Justin S. Grayer , David N. Sitter, JR. , Gamze Erten
Abstract: A coherent imaging system produces coherent flood illumination directed toward a remote object and local oscillator (LO) illumination derived based on a same master oscillator as the flood illumination. A Doppler sensor receives the LO illumination and a return of flood illumination reflected off the object. Doppler shift data from the Doppler sensor, corresponding to a longitudinal velocity of the object relative to the imaging system, is used to produce Doppler-shifted LO illumination received by a low bandwidth, large format focal plane array (FPA), together with the return illumination from the object. Interference between the Doppler-shifted LO illumination and the return illumination facilitates producing an image of the object with the low bandwidth FPA despite the longitudinal velocity. Pixel intensities from the FPA are integrated over a period approaching the maximum interference frequency. The Doppler sensor and FPA may concurrently process return for a high energy laser target spot.
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