Astigmatism compensation in spectrometers using non-spherical mirrors
    2.
    发明授权
    Astigmatism compensation in spectrometers using non-spherical mirrors 有权
    使用非球面镜的光谱仪中的散光补偿

    公开(公告)号:US08757822B2

    公开(公告)日:2014-06-24

    申请号:US13347862

    申请日:2012-01-11

    Inventor: David R. Demmer

    CPC classification number: G02B27/0037 G01J3/0208 Y10S359/90

    Abstract: A method of making specially shaped mirrors for astigmatism correction in spectrometers having a folded optical path using two mirrors by determining the curvature of one or both mirrors in the vertical direction such that the focal length in the sagittal direction of each of said one or both mirrors becomes the same as the focal length in the tangential direction wherein the radius of curvature of each of one or both mirror in the sagittal plane is adjusted to be equal to the radius of curvature in the tangential plane of each of one or both mirrors times the square of the cosign of the angle of incidence of the optical path at each of one or both mirrors is described.

    Abstract translation: 一种制造特殊形状的镜子,用于在光谱仪中具有散光校正的方法,其具有使用两个反射镜的折叠光路,通过确定一个或两个反射镜在垂直方向上的曲率,使得所述一个或两个反射镜中的每一个的矢状方向上的焦距 与切向方向上的焦距相同,其中矢状面中的一个或两个反射镜中的每一个的曲率半径被调整为等于一个或两个反射镜中的每一个的切向平面中的曲率半径乘以 描述了在一个或两个反射镜的每一个处的光路的入射角的cosign的平方。

Patent Agency Ranking