MECHANICAL SUNSHADE
    61.
    发明公开
    MECHANICAL SUNSHADE 审中-公开

    公开(公告)号:US20240126140A1

    公开(公告)日:2024-04-18

    申请号:US18486394

    申请日:2023-10-13

    CPC classification number: G03B11/043

    Abstract: A movable sunshade system includes a baffle extending along a central axis of an entrance pupil of a lens and a sunshade movably connected to the baffle. The sunshade includes a first portion shaped to cover a portion of the baffle that is spaced from the first end of the baffle and a second portion that extends from the first portion. The second portion is shaped to cover a portion of a field of view (FOV) of the entrance pupil. The movable sunshade system further includes an actuator configured to move at least one of the baffle or the sunshade to selectively cover portions of the FOV of the entrance pupil.

    Electronic component connector cooling device

    公开(公告)号:US11963328B2

    公开(公告)日:2024-04-16

    申请号:US17069762

    申请日:2020-10-13

    CPC classification number: H05K7/20009 H01R13/622 H05K7/20145

    Abstract: An electronic component connector cooling device can include a base portion and a conduit portion extending from the base portion. The conduit portion can have a cooling channel. The electronic component connector cooling device can further include a housing coupling interface formed in the base portion and operable to facilitate coupling the electronic component connector cooling device to a housing that at least partially forms an enclosure about an electronic component. The electronic component connector cooling device can also include a connector coupling interface formed in the base portion and operable to facilitate coupling a connector to the electronic component connector cooling device. The connector can operably connect the electronic component to a component external to the enclosure. The electronic component connector cooling device can further include an inlet port formed in the conduit portion and in fluid communication with the cooling channel. The inlet port can be operable to couple to a cooling fluid source external to the enclosure and to receive a cooling fluid from the cooling fluid source. The electronic component connector cooling device can include one or more outlet ports formed in the base portion and in fluid communication with the cooling channel operable to direct the cooling fluid internal to the enclosure to cool the electronic component.

    Superlattice electro-optic device including reconfigurable optical elements

    公开(公告)号:US11953765B2

    公开(公告)日:2024-04-09

    申请号:US18298097

    申请日:2023-04-10

    CPC classification number: G02F1/017 G02F2203/11 G02F2203/52

    Abstract: A method is provided for operating one or more one solid-state electro-optic device to provide an electrically switching shutter. The method includes forming an alternating stack of first semiconductor layers having a first dopant and second semiconductor layers having a second dopant to form at least one superlattice semiconductor device. The method further includes applying to the at least one superlattice semiconductor device a first voltage to induce a transparent state of the alternating stack such that light is transmitted through the alternating stack, and applying to the at least one superlattice semiconductor device a second voltage different from the first voltage to induce an opaque state of the alternating stack such that light is inhibited from passing through the alternating stack.

    FALSE TARGET DETECTION USING QUANTUM DECOHERENCE

    公开(公告)号:US20240103143A1

    公开(公告)日:2024-03-28

    申请号:US17946980

    申请日:2022-09-16

    CPC classification number: G01S7/4873 G01S7/4802 G01S7/4808 G01S7/483 G01S17/58

    Abstract: False radar target detection incudes: generating a pair of entangled photons as a probe photons and idler photons; preparing a plurality of photon states; using the ancilla photon states to encode the probe photons and the idler photons; encoding the probe photons and the idler photons with the ancilla photon states; storing the idler photons; transmitting the probe and ancilla photons as a radar signal; receiving a return radar signal from the target; performing a quantum error detection on the return radar signal to determine whether there is an error in the received radar signal as a result of decoherence in the return signal; and correlating the probe signal, the idler states and analyzing the errors detected on the return radar signal to determine whether the target is a true target when there is low decoherence in the return radar signal.

    EO/IR imaging system with a mems MMA configured to prevent saturation of the imaging detector

    公开(公告)号:US11936991B2

    公开(公告)日:2024-03-19

    申请号:US17397644

    申请日:2021-08-09

    Abstract: An EO/IR optical imaging system comprises collection optics to collect light from a scene into a collimated or near-collimated space. An imaging detector is positioned at the image plane and configured to integrate incident light (radiant flux or photons) over an image frame and readout a sequence of pixelated images at a frame rate, said detector exhibiting a saturation threshold. To prevent saturation of the imaging detector, a MEMS MMA is positioned in the collimated or near-collimated space. A secondary detector (via a pick-off) samples light from the collimated or near-collimated space multiple times per image frame. A controller responsive to the sampled light commands a percentage of the mirrors to re-direct light incident on those mirrors to a light dump and commands the remaining mirrors to re-direct light incident on those mirrors to the imaging detector. Together the mirrors adjust a fraction of light reaching the imaging detector such that the integrated incident light for a given image frame is less than the saturation threshold.

    Multi-beam passively-switched patch antenna array

    公开(公告)号:US11929556B2

    公开(公告)日:2024-03-12

    申请号:US17014151

    申请日:2020-09-08

    CPC classification number: H01Q21/065 H01Q1/38 H01Q3/36 H01Q9/0457 H01Q21/24

    Abstract: An apparatus includes multiple patch antenna elements configured to transmit multiple electromagnetic beams in multiple beam directions. The apparatus also includes multiple inputs each configured to receive one of multiple input signals, where each input signal is associated with one of the electromagnetic beams. The apparatus further includes multiple phase-tapered splitters each configured to receive one of the input signals, divide the received input signal into a set of sub-signals, and provide a phase taper that adjusts phases of at least some of the sub-signals in the set of sub-signals. Different phase tapers are associated with different ones of the beam directions. In addition, the apparatus includes multiple 90° hybrid transformers each configured to receive sub-signals associated with different ones of the input signals, isolate the received sub-signals from each other, and provide the isolated sub-signals to one of the patch antenna elements.

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