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    • 2. 发明申请
    • ZOOM LENS SYSTEMS WITH WAVEFRONT CODING
    • 具有WAVEFRONT编码的变焦镜头系统
    • US20070247725A1
    • 2007-10-25
    • US11682816
    • 2007-03-06
    • Edward DowskiSatoru TachiharaRobert Cormack
    • Edward DowskiSatoru TachiharaRobert Cormack
    • G02B15/14G02B13/18G02B15/04
    • G02B27/0025G02B13/12G02B15/04G02B15/14G02B27/46G02B27/52
    • Zoom lens systems and methods for imaging incoming rays over a range of ray angles are disclosed. The incoming rays are characterized by at least phase. The zoom lens system includes an optical axis and is characterized by a plurality of modulation transfer functions (MTFs) corresponding at least to the range of ray angles. The zoom lens system includes an optical group disposed along the optical axis, including at least one variable optical element that has a variable focal length selectable between at least two distinct focal length values. The optical group also includes a wavefront coding element. The wavefront coding element alters at least the phase of the incoming rays, such that the plurality of MTFs corresponding to the range of ray angles, for each one of the two distinct focal length values, are less sensitive to misfocus-like aberrations than a corresponding system without the wavefront coding element.
    • 公开了用于在射线角度范围内成像入射光线的变焦透镜系统和方法。 入射光线的特征在于至少相位。 变焦透镜系统包括光轴,其特征在于至少对应于射线角度范围的多个调制传递函数(MTF)。 变焦透镜系统包括沿着光轴设置的光学组,包括至少一个可变光学元件,该可变光学元件在至少两个不同焦距值之间可选择可变焦距。 光学组还包括波前编码元件。 波前编码元件至少改变入射光线的相位,使得对应于两个不同焦距值中的每个不同焦距值的光线角度范围的多个MTF对于与对应的焦点相似的像差不太敏感 系统没有波前编码元素。
    • 5. 发明授权
    • System for determination of a location in three dimensional space
    • 用于确定三维空间中的位置的系统
    • US6141104A
    • 2000-10-31
    • US150345
    • 1998-09-09
    • Waldean A. SchulzRobert Cormack
    • Waldean A. SchulzRobert Cormack
    • G01B11/03G01D5/34G01S3/783G01S5/16G06F3/03G06F3/033G06F3/042G01B11/14
    • G06F3/0346G01D5/34G01S3/7835G01S5/16G06F3/0304
    • An optical improvement for angular position sensors, which may be used to determine the spatial coordinates of a small source of light (or other energy) in a 3-dimensional volume. Such sensors normally include a linear photosensitive image detector such as a photodiode array or a charge-coupled device (CCD). An irregular pattern of parallel slits is described which increases the amount of light gathered while avoiding the undesirable characteristics of lens optics for this application. One optimal type of irregular pattern is the uniformly redundant array. A mathematical correlation function together with a polynomial interpolation function can determine the displacement of the image on the detector and thereby the location of the source relative to one angular dimension. Given the locations and orientations of several sensors in a 3-dimensional coordinate system and given the angles measured by each, the location of the point source can be computed.
    • 用于角位置传感器的光学改进,其可用于确定三维体积中的小光源(或其他能量)的空间坐标。 这种传感器通常包括诸如光电二极管阵列或电荷耦合器件(CCD)的线性光敏图像检测器。 描述了平行狭缝的不规则图案,其增加了聚光的量,同时避免了用于该应用的透镜光学器件的不期望的特性。 一种最佳类型的不规则图案是均匀冗余阵列。 数学相关函数与多项式插值函数一起可以确定图像在检测器上的位移,从而确定源相对于一个角度尺寸的位置。 给定三维坐标系中几个传感器的位置和方向,并给出由每个坐标系测量的角度,可以计算点源的位置。