MWIR LENS SYSTEM FOR WIDE AREA MOTION IMAGERY

    公开(公告)号:US20230066240A1

    公开(公告)日:2023-03-02

    申请号:US17408537

    申请日:2021-08-23

    Abstract: A Mid-Wave Infrared (MWIR) objective and relay lens system has an F# of 3.33 and angular field of view of 15.28°. It is deployed, with a focal plane and scanning system, on airborne platforms for wide area motion imagery. It is corrected for monochromatic and chromatic aberrations over of 3.3 to 5.1 micrometers. Effective focal length is 20 inches, and the overall length is 40.70 inches. The lens has, from object to image, two groups of optical elements with a cold shield/aperture stop 6 inches from the image plane. Group 1 acts as an objective lens with a positive power and three elements, Group 2 acts as a relay lens has a positive power and four elements. The lens is made of Germanium and Silicon. It used in a scanning system in a pre-objective configuration where the fast scan mirror is located in front of the lens system.

    AIRBORNE HYPERSPECTRAL SCANNING SYSTEM WITH REFLECTIVE TELECENTRIC RELAY
    2.
    发明申请
    AIRBORNE HYPERSPECTRAL SCANNING SYSTEM WITH REFLECTIVE TELECENTRIC RELAY 有权
    具有反射式电力继电器的AIRBORNE高精度扫描系统

    公开(公告)号:US20160041033A1

    公开(公告)日:2016-02-11

    申请号:US14451545

    申请日:2014-08-05

    CPC classification number: G01J3/2823 G01J3/0205 G01J3/0208 G01J3/04

    Abstract: An airborne hyperspectral scanning system with a reflective telecentric relay including a system housing fore-optics, mounted in the housing, an imaging spectrometer mounted in the housing, the imaging spectrometer comprising a spectrometer slit, the spectrometer slit having an exit side and an entrance side, a focal plane array, a fold mirror, and at least three spectrometer mirrors, ordered sequentially, and in optical alignment with each other, and a reflective telecentric relay, mounted in the housing between the fore-optics and the imaging spectrometer, the reflective telecentric relay comprising a collimator module, a scanning mirror module, and an objective module, the objective module being situated to receive intermediate image from the fore-optics and reflect a collimated beam to the scanning mirror image between the collimator module and the objective module, wherein the objective module is situated to form a telecentric image at the entrance of the spectrometer slit.

    Abstract translation: 一种具有反射远心继电器的机载超光谱扫描系统,包括安装在壳体中的前置光学系统的系统,安装在壳体中的成像光谱仪,成像光谱仪包括光谱仪狭缝,光谱仪狭缝具有出射侧和入射侧 ,反射远心继电器,安装在前置光学器件和成像光谱仪之间的壳体中的反射远心继电器,反射型的反射镜 远心继电器包括准直器模块,扫描镜模块和目标模块,所述物镜模块位于从前光学器件接收中间图像并将准直光束反射到准直器模块和目标模块之间的扫描镜像, 其中物镜模块位于在光谱仪狭缝的入口处形成远心图像。

    MWIR lens system for wide area motion imagery

    公开(公告)号:US11960064B2

    公开(公告)日:2024-04-16

    申请号:US17408537

    申请日:2021-08-23

    CPC classification number: G02B13/14 G02B15/02 G02B26/0816 G02B26/10

    Abstract: A Mid-Wave Infrared (MWIR) objective and relay lens system has an F# of 3.33 and angular field of view of 15.28°. It is deployed, with a focal plane and scanning system, on airborne platforms for wide area motion imagery. It is corrected for monochromatic and chromatic aberrations over of 3.3 to 5.1 micrometers. Effective focal length is 20 inches, and the overall length is 40.70 inches. The lens has, from object to image, two groups of optical elements with a cold shield/aperture stop 6 inches from the image plane. Group 1 acts as an objective lens with a positive power and three elements, Group 2 acts as a relay lens has a positive power and four elements. The lens is made of Germanium and Silicon. It used in a scanning system in a pre-objective configuration where the fast scan mirror is located in front of the lens system.

    Airborne hyperspectral scanning system with reflective telecentric relay
    5.
    发明授权
    Airborne hyperspectral scanning system with reflective telecentric relay 有权
    具有反射远心继电器的空中高光谱扫描系统

    公开(公告)号:US09372115B2

    公开(公告)日:2016-06-21

    申请号:US14451545

    申请日:2014-08-05

    CPC classification number: G01J3/2823 G01J3/0205 G01J3/0208 G01J3/04

    Abstract: An airborne hyperspectral scanning system with a reflective telecentric relay including a system housing fore-optics, mounted in the housing, an imaging spectrometer mounted in the housing, the imaging spectrometer comprising a spectrometer slit, the spectrometer slit having an exit side and an entrance side, a focal plane array, a fold mirror, and at least three spectrometer mirrors, ordered sequentially, and in optical alignment with each other, and a reflective telecentric relay, mounted in the housing between the fore-optics and the imaging spectrometer, the reflective telecentric relay comprising a collimator module, a scanning mirror module, and an objective module, the objective module being situated to receive intermediate image from the fore-optics and reflect a collimated beam to the scanning mirror image between the collimator module and the objective module, wherein the objective module is situated to form a telecentric image at the entrance of the spectrometer slit.

    Abstract translation: 一种具有反射远心继电器的机载高光谱扫描系统,包括安装在壳体中的前置光学系统的系统,安装在壳体中的成像光谱仪,成像光谱仪包括光谱仪狭缝,光谱仪狭缝具有出射侧和入射侧 ,反射远心继电器,安装在前置光学器件和成像光谱仪之间的壳体中的反射远心继电器,反射型的反射镜 远心继电器包括准直器模块,扫描镜模块和目标模块,所述物镜模块位于从前光学器件接收中间图像并将准直光束反射到准直器模块和目标模块之间的扫描镜像, 其中物镜模块位于在光谱仪狭缝的入口处形成远心图像。

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