WIDE FIELD OF VIEW F-THETA LENS
    4.
    发明申请

    公开(公告)号:US20200081225A1

    公开(公告)日:2020-03-12

    申请号:US16123520

    申请日:2018-09-06

    Abstract: An F-theta lens provides more than 88 degrees FFOV, F #2.8 or less, length not more than 200 mm, and/or 2.5 μm or better resolution, with color correction from 450 nm to 650 nm. The lens includes three optical groups having positive, negative, and positive optical powers respectively, which can include four, four, and six elements, respectively. Embodiments include an aperture stop in the center of the second optical group. Refractive indices and ray heights are selected to correct for field curvature. Embodiments further include a CMOS detector having pixel pitch of 1.25 microns or less, density of 18 megapixels or more, focal plane diameter of 57.2 mm or more, Nyquist sampling of 400 lines per mm or more and wide pixel field of view of 30° or more. A plurality of CMOS detectors can be arrayed to create a mosaic image.

    AIRBORNE HYPERSPECTRAL SCANNING SYSTEM WITH REFLECTIVE TELECENTRIC RELAY
    5.
    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 ORTHOSCOPIC LENS
    6.
    发明公开

    公开(公告)号:US20240319482A1

    公开(公告)日:2024-09-26

    申请号:US18056751

    申请日:2022-11-18

    CPC classification number: G02B13/14 G02B13/18

    Abstract: A mid-wave infrared (MWIR) lens assembly that may include a first set of optical elements, wherein each optical element of the first set of optical elements is a positive optical power. MWIR lens assembly may also include a second set of optical elements, wherein each optical element of the second set of optical elements is a negative optical power. MWIR lens assembly may also include that at least one optical element of the first set of optical elements is formed of a first optical glass material, at least another optical element of the first set of optical elements is formed of a second optical glass material, and at least one optical element of the second set of optical elements is formed of a third optical glass material wherein the second optical glass material is different than the first optical glass material and the third optical glass material.

    COMPACT ORTHOSCOPIC VNIR/SWIRLENS
    9.
    发明申请

    公开(公告)号:US20190018228A1

    公开(公告)日:2019-01-17

    申请号:US15646844

    申请日:2017-07-11

    Abstract: A compact orthoscopic lens is corrected for monochromatic and chromatic aberrations over wavelengths from 450 to 2450 nm with an angular FOV of 5.56° vertical and 66° horizontal. The 4.36″ effective focal length lens with f-number of 4 is compact measuring 5.2″ from the first optical surface to the image. The lens includes, in order from object to image, a first optical group having a negative optical power; a second optical group having a positive optical power and a third optical group having a negative optical power. The first optical group consists of two elements, the second optical group consists of three elements, one a doublet, and the third optical group consists of two elements. A physical aperture stop is positioned inside the second optical group. Powers of groups and elements, shapes, refractive indices, Abbe numbers and partial dispersions of glasses are selected so the lens is apochromatic and orthoscopic.

    Airborne hyperspectral scanning system with reflective telecentric relay
    10.
    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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