Forward looking infrared imaging system
    4.
    发明公开
    Forward looking infrared imaging system 失效
    Infrarot-Frontsicht-Abbildungssystem。

    公开(公告)号:EP0367481A2

    公开(公告)日:1990-05-09

    申请号:EP89310963.7

    申请日:1989-10-24

    CPC classification number: H04N3/09

    Abstract: Apparatus and methods for modifying existing forward looking infrared systems and for forming new forward looking infrared systems. Generally, the system comprises a Galilean afocal system (26) in combination with a reimaging afocal system (22). A reimaging afocal lens system (22) is formed with at least first and second lenses (40,42,44) and a plane (50) for forming an image therebetween. A thermal reference source (58) is positioned in the imaging plane (50) of the reimaging system (22). The method for modifying an existing forward looking infrared imaging system includes positioning the reimaging system (22) along the optical path of the system between the Galilian lens combination (26) and the scanning device (20). According to a method for forming a forward looking infrared system an imaging lens system (18) is arranged along an optical path in combination with a detector array to focus collimated radiation upon the detector array. The detector array subtends the field of view along a first direction. A reimaging afocal system (22) is incorporated along the optical path to provide collimated radiation to the imaging lens system (18) and a scanning device (20) is positioned between the reimaging afocal system and the imaging lens system to vary the field of view along a second direction in order to provide a two dimensional image. A galilean afocal lens system (26) is positioned to receive radiation from a scene and transmit the radiation to the reimaging afocal system (22).

    Abstract translation: 用于修改现有的前瞻性红外系统和形成新的前视红外系统的装置和方法。 通常,该系统包括与再成像无焦点系统(22)组合的伽利略无焦点系统(26)。 成像无焦透镜系统(22)形成有至少第一和第二透镜(40,42,44)和用于在其间形成图像的平面(50)。 热参考源(58)被定位在再成像系统(22)的成像平面(50)中。 用于修改现有的前瞻性红外成像系统的方法包括沿着伽利略透镜组合(26)和扫描装置(20)之间的系统的光路定位再成像系统(22)。 根据用于形成前视红外系统的方法,成像透镜系统(18)沿着光路布置,与检测器阵列组合以将准直辐射聚焦在检测器阵列上。 检测器阵列沿第一方向对准视场。 沿着光路并入一个重建无焦点系统(22)以向成像透镜系统(18)提供准直辐射,并且扫描装置(20)位于成像无焦点系统和成像透镜系统之间以改变视场 沿着第二方向,以提供二维图像。 伽利略无焦点透镜系统(26)被定位成接收来自场景的辐射,并将辐射传送到再成像无焦点系统(22)。

    Forward looking infrared imaging system
    5.
    发明公开
    Forward looking infrared imaging system 失效
    前瞻性的红外成像系统

    公开(公告)号:EP0367481A3

    公开(公告)日:1990-12-19

    申请号:EP89310963.7

    申请日:1989-10-24

    CPC classification number: H04N3/09

    Abstract: Apparatus and methods for modifying existing forward looking infrared systems and for forming new forward looking infrared systems. Generally, the system comprises a Galilean afocal system (26) in combination with a reimaging afocal system (22). A reimaging afocal lens system (22) is formed with at least first and second lenses (40,42,44) and a plane (50) for forming an image therebetween. A thermal reference source (58) is positioned in the imaging plane (50) of the reimaging system (22). The method for modifying an existing forward looking infrared imaging system includes positioning the reimaging system (22) along the optical path of the system between the Galilian lens combination (26) and the scanning device (20). According to a method for forming a forward looking infrared system an imaging lens system (18) is arranged along an optical path in combination with a detector array to focus collimated radiation upon the detector array. The detector array subtends the field of view along a first direction. A reimaging afocal system (22) is incorporated along the optical path to provide collimated radiation to the imaging lens system (18) and a scanning device (20) is positioned between the reimaging afocal system and the imaging lens system to vary the field of view along a second direction in order to provide a two dimensional image. A galilean afocal lens system (26) is positioned to receive radiation from a scene and transmit the radiation to the reimaging afocal system (22).

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