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公开(公告)号：US11906811B2
公开(公告)日：2024-02-20
申请号：US17262941
申请日：2018-07-27
Applicant: Datalogic IP Tech, S.r.l.
Inventor： Fabrizio Guastadini
CPC classification number: G02B7/102 , G02B13/001 , G02B26/085 , G03B3/10 , G03B13/36 , H01F7/1615 , H04N23/54 , G03B2205/0069
Abstract: A device for focusing a light beam comprises a optical assembly comprising at least one focusing lens and/or mirror, a support structure which supports the optical assembly, a magnetic actuator configured to move the optical assembly with respect to the support structure along a moving direction substantially parallel to an optical axis (X) of the optical assembly and at least one position sensor configured to provide an indication of the position of the optical assembly with respect to the support structure. The magnetic actuator comprises at least one permanent magnet integrally associated with the optical assembly and at least one first electrical winding integrally associated with the support structure and configured to cause flowing of an electric current within it, wherein the electrical current interacts with said at least one permanent magnet and causes the movement of the optical assembly along said moving direction until the optical assembly is brought to a desired focusing position. The focusing device comprises at least one second electrical winding integrally associated with the support structure and configured to be short-circuited so as to generate, due to the electromagnetic induction generated by the relative motion between said at least one permanent magnet and said at least one second electrical winding, a braking force that opposes the movement of the optical assembly along said moving direction.
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公开(公告)号：US10380392B2
公开(公告)日：2019-08-13
申请号：US15182336
申请日：2016-06-14
Applicant: Datalogic IP Tech, S.r.l.
Inventor： Giovanni Minafò , Fabrizio Guastadini
Abstract: A machine readable symbol reader can include a variable orientation scan engine and features to vary the orientation of the scan engine with respect to a housing of the reader to maintain an orientation of the scan engine in a global sense while an orientation of the rest of the reader including the housing changes. Such a machine readable symbol reader can be used in machine-readable symbol readers such as laser scanning machine readable symbol readers, smartphones with barcode readers attached, barcode scanners, optical imaging scanners, cameras, mobile computers, or for machine vision generally.
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公开(公告)号：US20210311284A1
公开(公告)日：2021-10-07
申请号：US17262941
申请日：2018-07-27
Applicant: Datalogic IP Tech, S.r.l.
Inventor： Fabrizio Guastadini
Abstract: A device for focusing a light beam comprises a optical assembly comprising at least one focusing lens and/or mirror, a support structure which supports the optical assembly, a magnetic actuator configured to move the optical assembly with respect to the support structure along a moving direction substantially parallel to an optical axis (X) of the optical assembly and at least one position sensor configured to provide an indication of the position of the optical assembly with respect to the support structure. The magnetic actuator comprises at least one permanent magnet integrally associated with the optical assembly and at least one first electrical winding integrally associated with the support structure and configured to cause flowing of an electric current within it, wherein the electrical current interacts with said at least one permanent magnet and causes the movement of the optical assembly along said moving direction until the optical assembly is brought to a desired focusing position. The focusing device comprises at least one second electrical winding integrally associated with the support structure and configured to be short-circuited so as to generate, due to the electromagnetic induction generated by the relative motion between said at least one permanent magnet and said at least one second electrical winding, a braking force that opposes the movement of the optical assembly along said moving direction.
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公开(公告)号：US20170357837A1
公开(公告)日：2017-12-14
申请号：US15182336
申请日：2016-06-14
Applicant: Datalogic IP Tech, S.r.l.
Inventor： Giovanni Minafò , Fabrizio Guastadini
CPC classification number: G06K7/10732 , G06K7/10831 , G06K7/10881
Abstract: A machine readable symbol reader can include a variable orientation scan engine and features to vary the orientation of the scan engine with respect to a housing of the reader to maintain an orientation of the scan engine in a global sense while an orientation of the rest of the reader including the housing changes. Such a machine readable symbol reader can be used in machine-readable symbol readers such as laser scanning machine readable symbol readers, smartphones with barcode readers attached, barcode scanners, optical imaging scanners, cameras, mobile computers, or for machine vision generally.
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