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    Pupil steering: flexure guidance systems
    2.
    发明授权
    Pupil steering: flexure guidance systems 有权

    公开(公告)号：US11681367B2

    公开(公告)日：2023-06-20

    申请号：US17738554

    申请日：2022-05-06

    Applicant: META PLATFORMS TECHNOLOGIES, LLC

    Inventor： Ryan Michael Ebert

    IPC: G06F3/01 ,  G06F3/03 ,  G02B6/24 ,  G02B27/01 ,  H01L41/09

    CPC classification number: G06F3/013 ,  G02B6/24 ,  G02B27/017 ,  G06F3/0304 ,  G06F3/0321 ,  G02B2027/0178 ,  H01L41/0926

    Abstract: A flexure guidance system may be provided for controlling movement of an optical subassembly and/or a connected combiner lens. For instance, the flexure guidance system may include a distal end piece, a proximal end piece, and multiple wire flexures that link the distal end piece to the proximal end piece. The linking wire flexures may be spaced to form an interior cavity between the distal end piece and the proximal end piece. This interior cavity may house various electronic components. One or more actuators in the system may move the electronic components according to input signals along different axes of movement provided by the wire flexures. Various other methods, systems, and computer-readable media are also disclosed.

    Optimized actuators for ultra-thin mirrors
    5.
    发明授权
    Optimized actuators for ultra-thin mirrors 有权

    公开(公告)号：US09964755B2

    公开(公告)日：2018-05-08

    申请号：US14702567

    申请日：2015-05-01

    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY

    Inventor： Marie Laslandes ,  Keith D. Patterson ,  Sergio Pellegrino

    IPC: G02B26/08 ,  H01L41/047 ,  H01L41/09

    CPC classification number: G02B26/0825 ,  G02B26/0858 ,  H01L41/047 ,  H01L41/0926

    Abstract: A method and apparatus for correcting error modes of a deformable mirror, including selecting or targeting one or more target error modes of a deformable mirror; and designing a pattern and/or shape of one or more electrodes, wherein the pattern and/or shape of the electrodes are designed to optimally correct the target error modes when the electrodes are disposed on the deformable mirror via an active material. Also disclosed is a deformable structure, including a composite shell including a plurality of plies each including carbon fibers embedded in a resin; a nanolaminate comprising individual nanolayers attached to a first side of the composite shell; an actuation structure attached to a second side of the composite shell; and a flexible electrode routing layer attached to the actuation structure.

    Transducer, Transducer Array, and Method of Making the Same
    6.
    发明申请
    Transducer, Transducer Array, and Method of Making the Same 审中-公开

    公开(公告)号：US20180117631A1

    公开(公告)日：2018-05-03

    申请号：US15794557

    申请日：2017-10-26

    Applicant: CTS Corporation

    Inventor： Gerald T. Stranford ,  Marshall Suarez

    IPC: B06B1/06 ,  H01L41/09 ,  H01L41/312

    CPC classification number: B06B1/0603 ,  H01L27/20 ,  H01L41/0474 ,  H01L41/0926 ,  H01L41/0973 ,  H01L41/25 ,  H01L41/312 ,  H01L41/338

    Abstract: A transducer comprising a transducer element including a plate with a through-hole and a collar projecting from the plate and defining an interior cavity in communication with the through-hole. A piezoelectric bender includes at least first and second wafer layers stacked together. The bender is coupled to a peripheral end face of the collar. The first and/or second piezoelectric wafer layers bend at a resonant frequency and generate ultrasonic waves that flow through the collar interior cavity and the plate through-hole and create an in-air pressure pattern and acoustic field at a location spaced from the transducer. A plurality of transducers may be made by providing a monolithic transducer element structure including a plurality of the transducer elements formed thereon, coupling either a plurality of benders or a monolithic bender to the plurality of transducer elements, and then cutting the monolithic transducer element structure to define a plurality of individual transducers.

    PIEZOELECTRIC TRANSDUCER
    9.
    发明申请
    PIEZOELECTRIC TRANSDUCER 审中-公开

    公开(公告)号：US20170370962A1

    公开(公告)日：2017-12-28

    申请号：US15588962

    申请日：2017-05-08

    Applicant: KISTLER HOLDING AG

    Inventor： ANDREW PAUL COOK

    IPC: G01P15/09 ,  G01L9/00 ,  G01L1/16 ,  H01L41/09 ,  H04R17/10 ,  H03H9/58

    CPC classification number: G01P15/09 ,  G01L1/16 ,  G01L1/26 ,  G01L9/0022 ,  G01P15/0915 ,  G01P21/00 ,  H01L41/09 ,  H01L41/0926 ,  H03H9/581 ,  H04R17/10

    Abstract: A piezoelectric transducer for measuring a force includes a base element; a pre-loading element; at least one effective main seismic mass aggregation of pre-loaded parts capable of producing the force when being accelerated; a main piezoelectric ceramic element including a first piezoelectric ceramic; at least one compensation seismic mass aggregation of pre-loaded parts capable of producing a compensation force when being accelerated; a compensation piezoelectric ceramic element including a second piezoelectric ceramic. The first piezoelectric ceramic has a thermal sensitivity shift smaller than the second piezoelectric ceramic. The main piezoelectric ceramic element is oriented with respect to the force to be measured and the compensation piezoelectric ceramic element is oriented with respect to the compensation force such that the main electric charge and the compensation electric charge are opposite in polarity.

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