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公开(公告)号：US11362733B2
公开(公告)日：2022-06-14
申请号：US15999355
申请日：2017-02-14
Applicant: BAE SYSTEMS plc
Inventor： Leslie Charles Laycock , Michael Stewart Griffith
IPC: H04B10/11 , H04B10/079
Abstract: An optical system (100) comprising: a transmitter module (102) configured to transmit a sequence of optical pulses (300), each optical pulse in the sequence (300) having a different magnitude to each other optical pulse in the sequence (300); a receiver module (104) comprising one or more optical signal detectors, the receiver module (104) configured to receive the sequence of optical pulses (300) transmitted by the transmitter module (102); and one or more processors (110) configured to process the sequence of optical pulses received by the receiver module (104) to select an optical pulse from the received sequence of optical pulses (400) based on one or more predetermined criteria. The one or more predetermined criteria include a criterion that the selected optical pulse does not saturate the one or more optical signal detectors.
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公开(公告)号：US10601506B2
公开(公告)日：2020-03-24
申请号：US16309332
申请日：2017-06-13
Applicant: BAE SYSTEMS plc
Inventor： Michael Stewart Griffith , Andrew James Williams
IPC: H04B10/112 , H04B13/02 , G02B26/12 , H04B10/80
Abstract: Apparatus for and method of transmitting an optical signal by a Free Space Optical, FSO, communication system, the method comprising: transmitting, by an optical signal transmitter (104), an optical signal (700) into at least part of a volume of an optical medium (302); and controlling, by a controller, the optical signal transmitter (104), to scan the at least part of the volume (302) using the optical signal (700) in a sequence of non-overlapping loops (704, 708). The sequence of non-overlapping loops (704, 708) may be a sequence of non-overlapping, concentric circular loops.
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公开(公告)号：US10394103B2
公开(公告)日：2019-08-27
申请号：US15754094
申请日：2016-08-23
Applicant: BAE Systems plc
Inventor： Lydia Ann Hyde , Andrew James Williams , Michael Stewart Griffith , Nicholas Giacomo Robert Colosimo
Abstract: Imaging apparatus on a host platform having an external surface, the external surface comprising a first surface facing a first direction and a second surface facing a second direction, the second direction being different to the first, the apparatus comprising a first and second plurality of single pixel detectors (10) distributed about said external surface such that the first plurality of single pixel detectors are distributed over the first surface and the second plurality of single pixel detectors are distributed over the second surface, each single pixel detector being configured to receive radiation reflected by an object or region of interest (18) and generate two-dimensional image data representative thereof, the apparatus further comprising an image processing module (16) for receiving said two-dimensional image data from each of a plurality of single pixel detectors (10) and reconstructing a three-dimensional image of said object or region of interest (18) using a ghost imaging algorithm.
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公开(公告)号：US10168515B2
公开(公告)日：2019-01-01
申请号：US15309321
申请日：2015-02-05
Applicant: BAE SYSTEMS plc
Abstract: The following invention relates to an optical device for use in a system that requires optical zoom or focus abilities, particularly for providing pre-set zoom parameters with a very low energy requirement. There is provided an optical magnification device comprising at least one pair of optically aligned deformable reflectors, wherein each reflector pair has at least two configurations, wherein selection of a first and a second configuration of said deformable reflector pairs provides pre-defined magnification states, such that in any configuration one reflector is substantially concave and the other is substantially convex; at least one controller may cause both the reflectors to move between said at least two configurations.
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