OPTICAL SYSTEMS WITH ASYMETRIC MAGNIFICATION

    公开(公告)号:US20180066987A1

    公开(公告)日:2018-03-08

    申请号:US15255385

    申请日:2016-09-02

    Applicant: Rand Swanson

    Inventor: Rand Swanson

    Abstract: Optical systems are provided. In an embodiment, the optical system includes a first anamorphic optic having a first focal length and a first focal line, where the first focal line is parallel to a cross track direction. A second anamorphic optic has a second focal length and a second focal line, where the second focal length is different than the first first focal length. The second anamorphic optic is positioned such that the first focal line and the second focal line are in about the same location. The first and second anamorphic optics are aligned along an optical signal path, and are configured to provide afocal magnification to a signal beam along an along track direction to produce a magnified beam. A line scan imager includes an objective lens and a linear detector, and the second anamorphic optic is configured to direct the magnified beam at the objective lens.

    Optical systems with asymetric magnification

    公开(公告)号:US10288477B2

    公开(公告)日:2019-05-14

    申请号:US15255385

    申请日:2016-09-02

    Applicant: Rand Swanson

    Inventor: Rand Swanson

    Abstract: Optical systems are provided. In an embodiment, the optical system includes a first anamorphic optic having a first focal length and a first focal line, where the first focal line is parallel to a cross track direction. A second anamorphic optic has a second focal length and a second focal line, where the second focal length is different than the first first focal length. The second anamorphic optic is positioned such that the first focal line and the second focal line are in about the same location. The first and second anamorphic optics are aligned along an optical signal path, and are configured to provide afocal magnification to a signal beam along an along track direction to produce a magnified beam. A line scan imager includes an objective lens and a linear detector, and the second anamorphic optic is configured to direct the magnified beam at the objective lens.

    Scalable imaging spectrometer
    3.
    发明申请
    Scalable imaging spectrometer 有权
    可扩展成像光谱仪

    公开(公告)号:US20060082772A1

    公开(公告)日:2006-04-20

    申请号:US11187584

    申请日:2005-07-22

    CPC classification number: G01J3/02 G01J3/0208 G01J3/04 G01J3/2823

    Abstract: A scalable imaging spectrometer, using anamorphic optical elements to form an intermediate focus in only one dimension. Light reflects off an object to form an incident beam. The beam reflects off an anamorphic objective mirror to form a line focus at a slit. At the slit, the beam is focused along the spectral dimension, but remains substantially collimated along the spatial dimension. The beam is then recollimated in the spectral dimension by a second anamorphic mirror, reflects off a diffraction grating, passes through a lens, and is brought to focus on a two dimensional detector, which produces both spectral and spatial information about the object. Because there is no intermediate focus in the spatial dimension, there are no off-axis aberrations from the anamorphic mirrors, and the field of view may be substantially increased over prior art spectrometers in the spatial dimension.

    Abstract translation: 可扩展的成像光谱仪,使用变形光学元件在一个维度上形成中间焦点。 光反射物体形成入射光束。 光束从一个变形物镜反射出来,在狭缝处形成一个线焦点。 在狭缝处,光束沿着光谱尺寸被聚焦,但沿着空间维度基本准直。 光束然后通过第二变形反射镜在光谱尺寸上重新进行聚焦,从衍射光栅反射,穿过透镜,并被聚焦在二维检测器上,二维检测器产生关于物体的光谱和空间信息。 因为在空间维度上没有中间焦点,所以不存在来自变形反射镜的离轴像差,并且视野在现有技术的光谱仪中可以在空间维度上显着增加。

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