Autofocus calibration for long lenses
    12.
    发明授权
    Autofocus calibration for long lenses 有权
    长镜头的自动对焦校准

    公开(公告)号:US09417428B2

    公开(公告)日:2016-08-16

    申请号:US14217104

    申请日:2014-03-17

    CPC classification number: G02B7/287 G01M11/0228 G03B17/568 G03B43/00

    Abstract: A method for calibrating a focus point for a camera lens may include capturing a reflection of a focus point measuring device that is affixed to the camera. The method may include evaluating a captured image of the reflection to measure a calibration amount for a focus point, and adjusting a focus point of a lens of the camera by the calibration amount. The focus point measuring device may include a substantially planar target surface defining a plane, and a ruled target surface inclined at substantially 45° to the substantially planar target and extending through the plane thereof, marked to indicate respective distances in front of and behind the plane. The device may further include a fixture for holding the substantially planar target surface and the ruled target surface in a defined orientation to the camera, enabling performance of the method.

    Abstract translation: 用于校准相机镜头的焦点的方法可以包括捕获固定到相机的对焦点测量装置的反射。 该方法可以包括评估反射的捕获图像以测量焦点的校准量,并且通过校准量来调整相机的透镜的焦点。 焦点测量装置可以包括限定平面的基本上平面的目标表面和与基本上平面的目标大体成45°倾斜并且延伸穿过其平面的刻划的目标表面,标记为在平面之前和之后相应的距离 。 该装置还可以包括用于将基本平坦的目标表面和刻划的目标表面以限定的方向保持在相机上的固定装置,从而能够实现该方法。

    Methods and devices for refractive correction of eyes

    公开(公告)号:US09345399B2

    公开(公告)日:2016-05-24

    申请号:US14465755

    申请日:2014-08-21

    Inventor: Junzhong Liang

    Abstract: Methods and devices are provided to obtain refractive correction with superior visual acuity (e.g., 20/10) by achieving an astigmatism-free customized refractive correction. The astigmatism-free customized refractive correction involves obtaining an objective and precise measurement of cylindrical power in a resolution between 0.01 D and 0.10 D in an eye using an objective aberrometer, reliably relating the cylindrical axis obtained from the objective aberrometer to that in a phoroptor, determining an optimized focus error of an eye through subjective refraction with a phoroptor, generating a customized refraction by combining the objective measured cylindrical power, the objective measured cylindrical axis, and the subjectively measured focus power, fabricating a custom lens with a tolerance finer than 0.09 D based on the generated customized refraction, and delivering an ophthalmic lens that can provide an astigmatism-free refractive correction for an eye.

    HANDHELD APPARATUS FOR MEASURING LENS SURFACE POWER
    15.
    发明申请
    HANDHELD APPARATUS FOR MEASURING LENS SURFACE POWER 有权
    用于测量镜头表面功率的手持装置

    公开(公告)号:US20150330865A1

    公开(公告)日:2015-11-19

    申请号:US14813155

    申请日:2015-07-30

    Inventor: Hongxiang Meng

    CPC classification number: G01M11/0214 G01M11/0207 G01M11/0228 G02C13/003

    Abstract: This invention discloses a handheld apparatus for measuring surface power or radius of prescription ophthalmic spectacle lenses, optical lenses or molds blocked with or without chuck during Rx production, and after comparing measurement results with designed data, providing correction data to the processing machines via wireless connection for correction processing if needed. The handheld apparatus integrates an optical measurement head into a monolithic optical system.

    Abstract translation: 本发明公开了一种用于在Rx生产期间用于测量处方眼用眼镜镜片,光学镜片或具有或不具有卡盘的光学透镜或模具的表面光焦度或半径的手持设备,并且在将测量结果与设计数据进行比较之后,经由无线连接向处理机提供校正数据 如果需要,进行校正处理。 手持设备将光学测量头集成到单片光学系统中。

    Method of determining at least one refraction characteristic of an ophthalmic lens
    16.
    发明授权
    Method of determining at least one refraction characteristic of an ophthalmic lens 有权
    确定眼科镜片的至少一个折射特性的方法

    公开(公告)号:US09052253B2

    公开(公告)日:2015-06-09

    申请号:US13884069

    申请日:2011-11-28

    CPC classification number: G01M11/0228 G01M11/0214

    Abstract: Method of determining at least one refractive characteristic of an ophthalmic lens, includes: a) placing the lens on a support having at least one prop element contacting one of the main faces of the lens in a contact zone area smaller than that of the main faces; b) lighting the lens placed on its support with lighting elements; c) capturing an image of the prop element of the support lighted by light rays that have passed through the lens, the image being captured in an image capture plane substantially perpendicular to an optical axis of the lens; d) in the image, identifying the image of the prop element of the support and determining at least one characteristic representative of the geometry of the image of the prop element; and e) from the characteristic representative of the geometry of the image of the prop element, deducing the looked-for refractive characteristic.

    Abstract translation: 确定眼用透镜的至少一种折射特性的方法包括:a)将透镜放置在具有至少一个支撑元件的支撑件上,所述至少一个支撑元件接触所述透镜的主面之一的接触区域小于所述主表面 ; b)用照明元件照亮放置在其支架上的镜头; c)拍摄通过透镜的光线照射的支撑物的支柱元件的图像,该图像被捕获在基本上垂直于透镜的光轴的图像捕获平面中; d)在图像中,识别支撑件的支撑元件的图像,并且确定表示支柱元件的图像的几何形状的至少一个特征; 和e)从表示支撑元件的图像的几何形状的特征,推导出所寻找的折射特性。

    Laser Based Lens Analysis Device and Method
    17.
    发明申请
    Laser Based Lens Analysis Device and Method 有权
    基于激光的镜头分析装置及方法

    公开(公告)号:US20150098078A1

    公开(公告)日:2015-04-09

    申请号:US14048488

    申请日:2013-10-08

    CPC classification number: G01M11/0228 G01N9/00

    Abstract: A laser based lens analysis device comprising of a laser for emitting a laser beam, a beam expander for increasing the diameter of the laser beam, a beam collimator for collimating the increased diameter laser beam, an aperture for controlling the collimated laser beam and rendering the collimated laser beam to be substantially symmetrical, and a beam profiler for analyzing the laser beam characteristics after the controlled-symmetrical laser beam passes through the lens being tested. A method for lens analysis comprising the steps of emitting a laser beam, increasing the diameter of the laser beam, collimating the increased diameter laser beam, rendering the collimated laser beam substantially symmetrical, directing the symmetrical laser beam towards the lens being tested, and analyzing characteristics of the directed laser beam after the directed laser beam passes through the lens being tested.

    Abstract translation: 一种激光基透镜分析装置,包括用于发射激光束的激光器,用于增加激光束直径的光束扩展器,用于准直增加直径的激光束的光束准直器,用于控制准直激光束的光圈, 准直激光束基本对称,以及光束轮廓仪,用于在受控对称的激光束通过被测试的透镜之后分析激光束特性。 一种用于透镜分析的方法,包括以下步骤:发射激光束,增加激光束的直径,准直增加的直径的激光束,使准直的激光束基本对称,将对称的激光束导向被测试的透镜,并分析 定向激光束通过被测透镜之后的定向激光束的特性。

    Methods And Devices For Refractive Correction Of Eyes
    18.
    发明申请
    Methods And Devices For Refractive Correction Of Eyes 审中-公开
    眼睛屈光矫正的方法和装置

    公开(公告)号:US20140368795A1

    公开(公告)日:2014-12-18

    申请号:US14465755

    申请日:2014-08-21

    Inventor: Junzhong Liang

    Abstract: Methods and devices are provided to obtain refractive correction with superior visual acuity (e.g., 20/10) by achieving an astigmatism-free customized refractive correction. The astigmatism-free customized refractive correction involves obtaining an objective and precise measurement of cylindrical power in a resolution between 0.01 D and 0.10 D in an eye using an objective aberrometer, reliably relating the cylindrical axis obtained from the objective aberrometer to that in a phoroptor, determining an optimized focus error of an eye through subjective refraction with a phoroptor, generating a customized refraction by combining the objective measured cylindrical power, the objective measured cylindrical axis, and the subjectively measured focus power, fabricating a custom lens with a tolerance finer than 0.09 D based on the generated customized refraction, and delivering an ophthalmic lens that can provide an astigmatism-free refractive correction for an eye.

    Abstract translation: 提供了通过实现无像散的定制屈光矫正来获得具有优异视力(例如,20/10)的屈光矫正的方法和装置。 无像差的定制屈光矫正涉及使用目标像差仪在眼睛内以0.01D和0.10D之间的分辨率获得圆柱光焦度的客观和精确的测量,可靠地将从目标像差仪获得的圆柱轴与陀螺仪中的圆柱轴相关联, 通过主观折射来确定眼睛的优化聚焦误差,通过组合目标测量的柱面光焦度,物镜测量的圆柱轴和主观测量的焦点焦距来产生定制的折射,制造具有比0.09宽的公差的定制镜片 D,基于生成的定制折射,以及递送可以为眼睛提供无像散的屈光矫正的眼科镜片。

    Autofocus calibration for long lenses
    19.
    发明授权
    Autofocus calibration for long lenses 有权
    长镜头的自动对焦校准

    公开(公告)号:US08676050B2

    公开(公告)日:2014-03-18

    申请号:US13340579

    申请日:2011-12-29

    Inventor: Gary S. Shuster

    CPC classification number: G02B7/287 G01M11/0228 G03B17/568 G03B43/00

    Abstract: A method for calibrating a focus point for a camera lens may include capturing a reflection of a focus point measuring device that is affixed to the camera. The method may include evaluating a captured image of the reflection to measure a calibration amount for a focus point, and adjusting a focus point of a lens of the camera by the calibration amount. The focus point measuring device may include a substantially planar target surface defining a plane, and a ruled target surface inclined at substantially 45° to the substantially planar target and extending through the plane thereof, marked to indicate respective distances in front of and behind the plane. The device may further include a fixture for holding the substantially planar target surface and the ruled target surface in a defined orientation to the camera, enabling performance of the method.

    Abstract translation: 用于校准相机镜头的焦点的方法可以包括捕获固定到相机的对焦点测量装置的反射。 该方法可以包括评估反射的捕获图像以测量焦点的校准量,并且通过校准量来调整相机的透镜的焦点。 焦点测量装置可以包括限定平面的基本上平面的目标表面和与基本上平面的目标大体成45°倾斜并且延伸穿过其平面的刻划的目标表面,标记为在平面之前和之后相应的距离 。 该装置还可以包括用于将基本平坦的目标表面和刻划的目标表面以限定的方向保持在相机上的固定装置,从而能够实现该方法。

    SYSTEM, METHOD, AND DEVICE FOR DETERMINING A FOCAL POSITION OF AN OBJECTIVE IN A MICROSCOPY IMAGING SYSTEM
    20.
    发明申请
    SYSTEM, METHOD, AND DEVICE FOR DETERMINING A FOCAL POSITION OF AN OBJECTIVE IN A MICROSCOPY IMAGING SYSTEM 有权
    用于确定微观成像系统中目标的焦点位置的系统,方法和装置

    公开(公告)号:US20130329233A1

    公开(公告)日:2013-12-12

    申请号:US13491017

    申请日:2012-06-07

    Applicant: Avrum I. Cohen

    Inventor: Avrum I. Cohen

    CPC classification number: G01M11/0228 G01B9/04 G02B21/006 G02B21/245 G06F19/10

    Abstract: A system and method of determining a focal position for an objective positioned at a measurement location of a sample holder in a microscopy imaging system are provided. The objective is moved to a position relative to the sample holder that corresponds to a distance between the objective and the sample holder. The sample holder has a conditioned upper surface. A focusing light beam is projected onto the sample holder when the objective is located at the position, and the objective focuses the focusing light beam on the sample holder. A reflected light beam resulting from reflection of the focusing light beam off the conditioned upper surface is observed. The focal position for the objective is determined based on the reflected light beam such that the objective produces an in focus image of a microscopy sample when the objective is located at the focal position.

    Abstract translation: 提供了一种用于确定位于显微镜成像系统中的样品架的测量位置处的物镜的焦点位置的系统和方法。 将物镜移动到相对于样品架的位置,该位置对应于物镜与样品架之间的距离。 样品架具有调节的上表面。 当物镜位于该位置时,聚焦光束投影到样品架上,并且物镜将聚焦光束聚焦在样品架上。 观察到由聚焦光束从调节的上表面反射而产生的反射光束。 基于反射光束确定目标的焦点位置,使得当物镜位于焦点位置时,物镜产生显微镜样本的聚焦图像。

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