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    Infra-red imaging systems and other optical systems
    1.
    发明授权
    Infra-red imaging systems and other optical systems 有权
    红外成像系统和其他光学系统

    公开(公告)号：US06547406B1

    公开(公告)日：2003-04-15

    申请号：US09529671

    申请日：2000-05-02

    申请人： Alan H. Greenaway ,  Paul Harrison ,  Robin Dickson

    发明人： Alan H. Greenaway ,  Paul Harrison ,  Robin Dickson

    IPC分类号： G02B508

    CPC分类号： G02B23/12 ,  G02B15/00 ,  G02B26/0825 ,  H04N5/33

    摘要： An infra-red imaging system has two variable focal length optical components (6, 7) whose positions are fixed relative to one another. The system also comprises an image detector (8). Control means (13) is provided such that the focal length of one of the variable focal length optical components (7) can be varied in relation to the focal length of the other variable focal length optical component (6). The system can be used to produce an image of variable magnification while maintaining an in-focus image at the detector (8). The control means (13) may comprise a mechanical linkage, an electronic circuit, or a computer program. In an alternative embodiment the optical system is a beam expander. Controlling a focusing mirror can achieve a dither effect. Controlling a focusing mirror can also de-focus the image, giving a mean scene temperature evaluation.

    摘要翻译： 红外成像系统具有两个相对于彼此固定位置的可变焦距光学部件（6,7）。 该系统还包括图像检测器（8）。 设置控制装置（13），使得可变焦距光学部件（7）之一的焦距可以相对于另一个可变焦距光学部件（6）的焦距变化。 该系统可用于产生可变放大图像，同时保持检测器（8）处的对焦图像。 控制装置（13）可以包括机械联动装置，电子电路或计算机程序。 在替代实施例中，光学系统是光束扩展器。 控制聚焦镜可以实现抖动效果。 控制聚焦镜还可以对图像进行对焦，给出平均场景温度评估。

    Wavefront characterization and correction
    3.
    发明授权
    Wavefront characterization and correction 有权
    波前表征和校正

    公开(公告)号：US08009280B1

    公开(公告)日：2011-08-30

    申请号：US12167945

    申请日：2008-07-03

    申请人： Gavin R. G. Erry ,  Paul Harrison ,  Boyd Hunter ,  Eugene W. Butler

    发明人： Gavin R. G. Erry ,  Paul Harrison ,  Boyd Hunter ,  Eugene W. Butler

    IPC分类号： G01J1/00

    CPC分类号： G01J9/00

    摘要： A system, for determining characteristics of a beam wavefront and reshaping such wavefront, including: apparatus for sampling the wavefront curvature and generating outputs; apparatus for reshaping the wavefront; and apparatus for receiving the outputs, proportioning the outputs to match the inputs need to drive controls for the reshaping apparatus, and sending the proportioned outputs to the reshaping apparatus. The reshaping apparatus is, preferably, a deformable mirror. The sampling apparatus includes a distorted grating. The method includes: positioning the sampling apparatus in the bean path; positioning a reshaping apparatus in the beam path; sampling the curvature of the wavefront and generating outputs representative of the curvature thereof; sending the generated outputs to the proportioning apparatus; proportioning the outputs to match the inputs needed to drive the controls of the reshaping apparatus; and sending the proportioned outputs to the reshaping apparatus to change the shape thereof.

    摘要翻译： 一种用于确定光束波前的特征并重构这种波前的系统，包括：用于采样波前曲率并产生输出的装置; 用于重塑波前的装置; 以及用于接收输出的装置，使输出比例与输入匹配，需要驱动整形装置的控制，并将成比例的输出发送到整形装置。 整形装置优选为可变形反射镜。 采样装置包括失真光栅。 该方法包括：将采样设备定位在豆路径中; 将整形装置定位在光束路径中; 对波前的曲率进行采样并产生表示其曲率的输出; 将所生成的输出发送到配比装置; 比较输出以匹配驱动整形装置的控制所需的输入; 并将成比例的输出发送到整形装置以改变其形状。

    Laser wavefront characterization
    5.
    发明授权
    Laser wavefront characterization 有权
    激光波前表征

    公开(公告)号：US08882274B1

    公开(公告)日：2014-11-11

    申请号：US12536333

    申请日：2009-08-05

    申请人： Leonard John Otten, III ,  Paul Harrison ,  Desirae L. Cuevas ,  Paul Fournier

    发明人： Leonard John Otten, III ,  Paul Harrison ,  Desirae L. Cuevas ,  Paul Fournier

    IPC分类号： A61B3/10 ,  A61B3/00

    CPC分类号： A61B3/1015 ,  A61B3/0008

    摘要： The device and method of the present invention are useful for determining the characteristics of an infrared wavefront. The present invention involves positioning a beam of light containing the infrared wavefront to be characterized onto a distorted grating, using the grating to produce a plurality of images, determining the infrared wavefront from the plurality of images and analyzing the infrared wavefront for features that characterize the infrared wavefront.

    摘要翻译： 本发明的装置和方法可用于确定红外波前的特性。 本发明涉及将包含要表征的红外波前的光束定位在失真的光栅上，使用光栅产生多个图像，从多个图像中确定红外波前，并分析红外波阵面的特征， 红外波前。

    Ophthalmic aberrometer for measuring aberrations in the eye
    7.
    发明授权
    Ophthalmic aberrometer for measuring aberrations in the eye 有权
    用于测量眼睛像差的眼科畸变仪

    公开(公告)号：US07419264B1

    公开(公告)日：2008-09-02

    申请号：US10981996

    申请日：2004-11-04

    申请人： Leonard John Otten, III ,  Paul Harrison ,  Gavin Erry

    发明人： Leonard John Otten, III ,  Paul Harrison ,  Gavin Erry

    IPC分类号： A61B3/14

    CPC分类号： A61B3/1015

    摘要： A ophthalmic aberrometer uses a wavefront sensor aligned with an eye under examination through an optical path and a light source for introducing a light beam into the eye via the optical path, wherein the optical path has a reference through which the light beam passes before passing to an eye retina to form a reference spot on the retina, a focus dynamic range extender, and an astigmatism dynamic range extender positioned in the optical path between the reference and an eye under examination. The wavefront sensor is positioned to receive a wavefront reflected from the eye retina via the optical path.

    摘要翻译： 眼科畸变仪使用通过光路与被检查眼睛对准的波前传感器，以及用于经由光路将光束引入眼睛的光源，其中光路具有光束在经过之前通过的参考 眼视网膜在视网膜上形成参考斑点，聚焦动态范围扩展器，以及位于参考眼和被检眼之间的光路中的像散动态范围扩展器。 波前传感器被定位成经由光路接收从眼睛视网膜反射的波前。

    Wavefront characterization of corneas
    10.
    发明申请
    Wavefront characterization of corneas 审中-公开
    角膜的波前表征

    公开(公告)号：US20050088618A1

    公开(公告)日：2005-04-28

    申请号：US10987095

    申请日：2004-11-12

    申请人： Leonard Otten ,  Gavin Erry ,  Simon Woods ,  Paul Harrison

    发明人： Leonard Otten ,  Gavin Erry ,  Simon Woods ,  Paul Harrison

    IPC分类号： A61B3/103 ,  A61B3/107 ,  G01J9/00 ,  A61B3/10

    CPC分类号： A61B3/1015 ,  A61B3/107 ,  A61F2/142 ,  G01J9/00

    摘要： Apparatus for determining if a cornea (whether in vitro or in vivo) has been modified (either surgically or otherwise). The method includes the steps of: passing a beam of collimated light a (either coherent or incoherent) through the cornea to produce a distorted wavefront; determining the characteristics of the distorted wavefront; and analyzing the distorted wavefront for characteristics that identify the presence of a modification. The analysis of the distorted wavefront can be for the presence of higher order aberrations, or Gausian characteristics which are indicative of modifications. More particularly, the method includes the steps of providing an optical system that has a pupil plane and an image plane at a detector; positioning the cornea in the pupil plane; passing a collimated beam of light through the cornea to produce at least two images in the image plane; determining the characteristics of the distorted wavefront; and analyzing the distorted wavefront for characteristics that identify the presence of a modification. The apparatus includes: a source of collimated light: an optical system including a distorted grating and an imaging lens (which have a pupil plane, first and second virtual planes, and an image plane); structure for positioning the cornea in the pupil plane; and a computer. The structure for positioning the cornea (which is immersed in a suitable storage fluid) includes first and second plano/plano lenses. The first and second plano lens, which are substantially and perpendicular to and centered with respect to the axis, have less than λ/10 total distortions.

    摘要翻译： 用于确定角膜（无论是体外或体内）是否已被修改（手术或其他方式）的装置。 该方法包括以下步骤：将准直光束（相干或非相干）通过角膜以产生畸变的波前; 确定畸变波前的特征; 并分析畸变波阵面以识别修改的存在的特征。 畸变波阵面的分析可以是高阶像差的存在，或表示修改的高斯特性。 更具体地说，该方法包括以下步骤：提供在检测器处具有瞳孔平面和图像平面的光学系统; 将角膜定位在瞳孔平面中; 使准直的光束通过角膜，在图像平面中产生至少两个图像; 确定畸变波前的特征; 并分析畸变波阵面以识别修改的存在的特征。 该装置包括：准直光源：包括失真光栅和成像透镜（其具有瞳孔平面，第一和第二虚拟平面以及像平面）的光学系统; 用于将角膜定位在瞳孔平面中的结构; 和电脑。 用于定位角膜（其浸入合适的储存液体中）的结构包括第一和第二平面/平视镜片。 基本上和垂直于和相对于轴居中的第一和第二平面透镜具有小于λ/ 10的总失真。