Method of designing and fitting multifocal lenses taking into account material properties of the lenses
    2.
    发明授权
    Method of designing and fitting multifocal lenses taking into account material properties of the lenses 有权
    考虑到镜片的材料特性来设计和配合多焦点镜片的方法

    公开(公告)号:US06196685B1

    公开(公告)日:2001-03-06

    申请号:US09286094

    申请日:1999-04-02

    IPC分类号: G02C704

    CPC分类号: G02C7/04 G02C7/041

    摘要: A method for fitting and designing an ophthalmic lens for a presbyope that yields improved visual acuity in general, and takes into account individual fitting characteristics. More specifically, a method for fitting and designing a contact or intraocular lens which takes into account material properties of the lens by observing the “print through” associated with the lens as an indicator of the topography of the lens. The term “print through” is used to refer to any change in lens topography on the front surface of the lens as a result of changes in topography on the back surface of the lens. If a significant amount of “print through” is observed, this generally indicates that the multifocal function of the lens is properly being performed. In such a situation, the clinician can then adjust the add power to the desired level. If there is not a significant amount of “print through”, this generally indicates that the multifocal function of the lens is not properly being performed. In this latter situation, by observing the reduced “print through” associated with such a lens, the clinician can instead bias one lens of a lens pair for distance power and the other lens of a lens pair for near power. Alternatively, each lens of the lens pair can be biased for some combination of distance power and near power.

    摘要翻译: 一种用于配戴和设计用于长角镜的眼镜片的方法,其通常产生改善的视敏度,并且考虑到各自的装配特性。 更具体地,涉及一种通过观察与透镜相关联的“打印通过”作为透镜的形貌的指示符来考虑到透镜的材料性质来配合和设计接触或眼内透镜的方法。 术语“打印通过”用于指透镜表面上的形状变化的结果,透镜前表面上的透镜形状的任何变化。 如果观察到大量的“打印通”,则这通常表示正确地执行透镜的多焦点功能。 在这种情况下,临床医生可以将添加功率调整到所需的水平。 如果没有大量的“打印通过”,则这通常表示镜头的多焦点功能没有被正确地执行。 在后一种情况下,通过观察与这种透镜相关联的减少的“打印通过”,临床医生可以改变偏置透镜对的一个透镜以用于距离功率,并且透镜对的另一个透镜偏压近距离。 或者,透镜对的每个透镜可以偏置距离功率和近功率的一些组合。

    Mitigation of drift effects in secondary inertial measurements of an isolated detector assembly
    7.
    发明授权
    Mitigation of drift effects in secondary inertial measurements of an isolated detector assembly 有权
    减轻孤立探测器组件二次惯性测量中的漂移效应

    公开(公告)号:US08552350B2

    公开(公告)日:2013-10-08

    申请号:US13350787

    申请日:2012-01-15

    CPC分类号: G01C21/16 G01C25/005

    摘要: The 6-axis position and attitude of an imaging vehicle's detector assembly is measured by mounting the detector assembly on a compliant isolator and separating the main 6-axis IMU on the vehicle from a secondary IMU comprising at least inertial rate sensors for pitch and yaw on the detector assembly. The compliant isolator couples low-frequency rigid body motion of the vehicle below a resonant frequency to the isolated detector assembly while isolating the detector assembly from high-frequency attitude noise above the resonant frequency. A computer processes measurements of the 6-axis rigid body motion and the angular rate of change in yaw and pitch of the isolated detector assembly to mitigate the drift and noise error effects of the secondary inertial rate sensors and estimate the 6-axis position and attitude of the detector assembly.

    摘要翻译: 成像车辆检测器组件的6轴位置和姿态通过将检测器组件安装在顺应性隔离器上并将车辆上的主6轴IMU与第二IMU分离,其中至少包括用于俯仰和偏航的惯性速率传感器 检测器组件。 兼容隔离器将低于谐振频率的车辆的低频刚体运动耦合到隔离的检测器组件,同时将检测器组件与高于谐振频率的高频姿态噪声隔离。 计算机处理六轴刚体运动的测量和隔离检测器组件的偏航和俯仰角变化速率,以减轻二次惯性速率传感器的漂移和噪声误差影响,并估计6轴位置和姿态 的检测器组件。

    Ophthalmic lens inspection method and apparatus
    9.
    发明授权
    Ophthalmic lens inspection method and apparatus 失效
    眼科镜检查方法及装置

    公开(公告)号:US5717781A

    公开(公告)日:1998-02-10

    申请号:US598068

    申请日:1996-02-07

    CPC分类号: G01M11/0278 G01M11/025

    摘要: Disclosed is an ophthalmic lens inspection method and apparatus comprising a camera to capture an image of an ophthalmic lens which has been illuminated by a light source. Location and intensity at each camera pixel is converted to an electrical quantity which is then transferred and stored in a memory. A computer containing instructions for comparing the intensity and location values of the pixels starts near the center of the receptor field and continues toward the edge of the field until an intensity deviation is encountered. By evaluating the pixels containing intensity variation, an outline of the lens edge is attained. An annulus is generated enclosing the actual lens edge. All the pixels are changed from an absolute intensity value to a gradient value, represented by two transition edges. Feature extraction is performed to locate defective pixels and place them into groups. Once the groups have been determined each is given a score based on the number, type and severity of the defective pixels placed into that group. From that, a weighted score can be given to the entire lens and the lens either passes or fails.

    摘要翻译: 公开了一种眼科镜检查方法和装置,其包括用于捕获由光源照射的眼科镜片的图像的照相机。 将每个相机像素处的位置和强度转换成电量,然后传送并存储在存储器中。 包含用于比较像素的强度和位置值的指令的计算机在接收器场的中心附近开始,并且继续朝向场的边缘,直到遇到强度偏差。 通过评估包含强度变化的像素,获得透镜边缘的轮廓。 产生包围实际透镜边缘的环带。 所有像素从绝对强度值改变为由两个过渡边缘表示的梯度值。 执行特征提取以定位有缺陷的像素并将它们分组。 一旦确定了组,就可以根据放置在该组中的缺陷像素的数量,类型和严重性给出分数。 从此,可以对整个镜头给予加权分数,并且镜头通过或失败。

    PROJECTILE AND METHOD THAT INCLUDE SPEED ADJUSTING GUIDANCE AND PROPULSION SYSTEMS
    10.
    发明申请
    PROJECTILE AND METHOD THAT INCLUDE SPEED ADJUSTING GUIDANCE AND PROPULSION SYSTEMS 有权
    包括速度调节指导和推进系统的项目和方法

    公开(公告)号:US20120181373A1

    公开(公告)日:2012-07-19

    申请号:US13020276

    申请日:2011-02-03

    摘要: Some embodiments pertain to a projectile and method that includes a flight vehicle and a propulsion system attached to the flight vehicle. The propulsion system includes a plurality of motors that propel the projectile. A guidance system is connected to the propulsion system. The guidance system ignites an appropriate number of the motors to adjust the speed of the projectile based on the location of the projectile relative to a desired destination for the flight vehicle. In some embodiments, the flight vehicle is a kinetic warhead. The projectile may be an interceptor that includes a first propulsion stage, a second propulsion stage and a third propulsion stage that includes the third propulsion system. The number of booster motors that will be ignited by the guidance system depends on the speed that the projectile needs to be adjusted to in order to maneuver the projectile to a desired location.

    摘要翻译: 一些实施例涉及包括飞行车辆和附接到飞行器车辆的推进系统的射弹和方法。 推进系统包括推动射弹的多个马达。 引导系统连接到推进系统。 引导系统点燃适当数量的电机,以根据飞弹相对于飞行器的所需目的地的位置来调整射弹的速度。 在一些实施例中,飞行器是动力弹头。 抛射体可以是包括第一推进阶段,第二推进阶段和包括第三推进系统的第三推进阶段的拦截器。 引导系统将引燃的助力马达的数量取决于弹丸需要调整的速度,以便将弹丸操纵到所需的位置。