公开(公告)号：US08576390B1

公开(公告)日：2013-11-05

申请号：US13563499

申请日：2012-07-31

Applicant: Laurens Nunnink

Inventor： Laurens Nunnink

IPC: G01B9/00

CPC classification number: G06T7/0018 ,  G01M11/0228 ,  G02B3/14 ,  G03B3/10 ,  G03B43/00 ,  G06T7/80 ,  H04N5/23212 ,  H04N17/002

Abstract: This invention provides a system and method for determining and controlling focal distance in a lens assembly of a vision system camera using an integral calibration assembly that provides the camera's image sensor with optical information that is relative to focal distance while enabling runtime images of a scene to be acquired along the image axis. The lens assembly includes a variable lens located along an optical axis that provides a variable focus setting. The calibration assembly generates a projected pattern of light that variably projects upon the camera sensor based upon the focus setting of the variable lens. That is, the appearance and/or position of the pattern varies based upon the focus setting of the variable lens. This enables a focus process to determine the current focal length of the lens assembly based upon predetermined calibration information stored in association with a vision system processor running the focus process.

公开(公告)号：US08525982B2

公开(公告)日：2013-09-03

申请号：US13114309

申请日：2011-05-24

Applicant: Seima Kato

Inventor： Seima Kato

IPC: G01N21/41 ,  G01B9/00

CPC classification number: G01N21/41 ,  G01M11/0228 ,  G01N21/45

Abstract: A method includes the steps of measuring a first transmitted wavefront in a first medium having a first refractive index and a second transmitted wavefront in a second medium having a second refractive index different from the first refractive index, and obtaining a refractive index distribution projected value of the object in each orientation by removing a shape component of the object utilizing measurement results of the first transmitted wavefront and the second transmitted wavefront and each transmitted wavefront of a reference object that has the same shape as that of the object and a specific refractive index distribution and is located in one of the first medium and the second medium with the same orientation as that of the object, and calculating a three-dimensional refractive index distribution of the object based on a plurality of refractive index distribution projected values corresponding to the plurality of orientations.

Abstract translation: 一种方法包括以下步骤：在具有第一折射率和第二透射波前的第一介质中测量具有不同于第一折射率的第二折射率的第二介质中的第一透射波前，并获得折射率分布预测值 使用具有与物体相同形状的参考对象的第一透射波阵面和第二透射波阵面以及每个透射波面的测量结果，以及特定的折射率分布来去除物体的形状分量， 并且位于与所述物体相同取向的所述第一介质和所述第二介质中的一个中，并且基于与所述多个对象对应的多个折射率分布投影值来计算所述物体的三维折射率分布 方位。

公开(公告)号：US20100245842A1

公开(公告)日：2010-09-30

申请号：US12728878

申请日：2010-03-22

Applicant: Seima Kato

Inventor： Seima Kato

IPC: G01B9/02

CPC classification number: G01M11/0271 ,  G01M11/0228 ,  G01M11/0257 ,  G01N21/45

Abstract: A transmitted wavefront measuring method comprises the steps of emitting light 101 from a light source 100 onto an object to be measured 120 to receive interfering light transmitted through the object and a diffraction grating 130 on a light receiving portion 140 disposed at a predetermined distance from the diffraction grating to measure an intensity distribution of the interfering light T10, performing a Fourier transform of the intensity distribution to calculate a frequency distribution T20, and obtaining a transmitted wavefront of the object based on a primary frequency spectrum in the frequency distribution T30 to T90. The step of obtaining the transmitted wavefront comprises the steps of performing an inverse Fourier transform of the primary frequency spectrum with reference to a grating frequency of the diffraction grating to calculate a complex amplitude of the interfering light T60, and obtaining the transmitted wavefront based on the complex amplitude T90.

Abstract translation: 透射波面测量方法包括以下步骤：将光101从光源100发射到待测物体120上以接收透过物体的干涉光;以及在受光部分140上的衍射光栅130，所述衍射光栅130设置在距离物体预定距离处 用于测量干涉光T10的强度分布，执行强度分布的傅里叶变换以计算频率分布T20，并且基于频率分布T30至T90中的主频谱获得对象的发射波阵面。 获得发送波前的步骤包括以下步骤：参考衍射光栅的光栅频率执行主频谱的傅里叶逆变换，以计算干涉光T60的复振幅，并且基于 复振幅T90。

公开(公告)号：US07764364B2

公开(公告)日：2010-07-27

申请号：US11658181

申请日：2005-08-23

Applicant: Tadashi Kajino ,  Yutaka Ohmori

Inventor： Tadashi Kajino ,  Yutaka Ohmori

IPC: G01B9/00

CPC classification number: G01M11/0221 ,  G01M11/0228

Abstract: A lens meter having a measurement-optical system including a light source which projects and a light-receiving sensor which receives a light beam having passed through the lens; an arithmetic part which obtains optical characteristics of the lens from results received by the light-receiving sensor; mode selecting device which selects between a single-focal-lens-measurement mode and a progressive-lens-measurement mode; detecting device which detects directions and degrees of displacement of measurement positions from a near-vision portion of a progressive lens based on optical characteristics obtained when the progressive-lens-measurement mode is selected and alignment is made to bring the measurement position into the near-vision portion; a display which displays an alignment screen; and a display-control part which causes the display, based on detection results by the detection device, to display a guide mark indicating a direction and an amount that the lens must be moved to bring the measurement position into the near-vision portion.

Abstract translation: 一种具有测量光学系统的透镜计，该测量光学系统包括一个投射的光源和一个接收透过透镜的光束的光接收传感器; 算术部件，其由光接收传感器接收的结果获得透镜的光学特性; 模式选择装置，其在单焦点透镜测量模式和渐进透镜测量模式之间进行选择; 检测装置，其基于当选择了渐进式镜头测量模式时获得的光学特性来检测测量位置与渐进透镜的近距离部分的位移方向和程度，并且使测量位置进入近距离的位置， 视觉部分; 显示对准屏幕的显示器; 以及显示控制部，其基于检测装置的检测结果，显示指示所述透镜必须移动的方向和量的引导标记，以使测量位置进入近视觉部。

公开(公告)号：US20080291433A1

公开(公告)日：2008-11-27

申请号：US11658181

申请日：2005-08-23

Applicant: Tadashi Kajino ,  Yutaka Ohmori

Inventor： Tadashi Kajino ,  Yutaka Ohmori

IPC: G01M11/02

CPC classification number: G01M11/0221 ,  G01M11/0228

Abstract: The present invention has an object to provides a lens meter which readily enables alignment of a progressive lens even by an inexperienced examiner. A lens meter of the present invention comprises a lens meter for measuring optical characteristics of a target lens to be measured, comprising: a measurement optical system including a light source which projects a measurement light beam to the target lens and a light receiving sensor which receives the measurement light beam having passed through the target lens; an arithmetic part which obtains the optical characteristics of the target lens based on a received result by the light receiving snsor; mode selecting means which selects between a single focal lens measurement mode and a progressive lens measurement mode; detecting means which detects a direction and a degree of displacement of a current measurement position from a near vision portion of a progressive lens which is the target lens based on the optical characteristics obtained at a plurality of positions when the progressive lens measurement mode is selected and alignment is made to bring the measurement position into the near vision portion; a display which displays an alignment screen; and a display control part which causes the display, based on a detection result by the detection means, to display a guide mark indicatin a direction in which and an amount by which the lens must be moved to bring the measurement position into the near vision portion.

Abstract translation: 本发明的目的是提供一种即使由经验不足的检查者也能够使渐进透镜对准的透镜计。 本发明的镜片包括：用于测量要测量的目标透镜的光学特性的透镜仪，包括：测量光学系统，包括将测量光束投射到目标透镜的光源和接收传感器的光接收传感器 测量光束已经通过目标透镜; 算术部，其基于所述受光标签的接收结果，求出所述目标镜头的光学特性; 模式选择装置，其在单个焦点透镜测量模式和渐进式透镜测量模式之间进行选择; 检测装置，其基于当选择渐进式镜头测量模式时在多个位置处获得的光学特性来检测当前测量位置的距离和来自作为目标镜头的渐进镜片的近视觉部分的位移的方向和程度;以及 使测量位置进入近视觉部分; 显示对准屏幕的显示器; 以及显示控制部，其基于所述检测单元的检测结果，显示所述显示，以向所述显示控制部显示所述透镜必须移动的方向和所述测量位置进入所述近视觉部位的方向 。

公开(公告)号：US20080278730A1

公开(公告)日：2008-11-13

申请号：US11950329

申请日：2007-12-04

Applicant: Xavier Colonna De Lega

Inventor： Xavier Colonna De Lega

IPC: G01B11/02

CPC classification number: G01B9/02084 ,  G01B9/02058 ,  G01B9/0209 ,  G01B11/2441 ,  G01M11/0228 ,  G01M11/0271 ,  G01N21/45

Abstract: Methods and related systems for determining properties of optical systems (e.g., interferometers) and/or optical elements (e.g., lenses and/or lens systems) are described. For example, information related to an optical thickness mismatch of an interferometer can be determined by providing scanning interferometry data. The data typically include obtaining one or more interference signals each corresponding to a different spatial location of a test object. A phase is determined for each of multiple frequencies of each interference signal. The information related to the optical thickness mismatch is determined based on the phase for each of the multiple frequencies of the interference signal(s).

Abstract translation: 描述了用于确定光学系统（例如，干涉仪）和/或光学元件（例如，透镜和/或透镜系统）的性质的方法和相关系统。 例如，可以通过提供扫描干涉测量数据来确定与干涉仪的光学厚度失配有关的信息。 数据通常包括获得每个对应于测试对象的不同空间位置的一个或多个干扰信号。 确定每个干扰信号的多个频率中的每一个的相位。 基于干涉信号的多个频率中的每一个的相位确定与光学厚度失配有关的信息。

公开(公告)号：US07301614B2

公开(公告)日：2007-11-27

申请号：US11043614

申请日：2005-01-26

Applicant: Eiichi Yanagi ,  Shinichi Nakamura

Inventor： Eiichi Yanagi ,  Shinichi Nakamura

IPC: G01B9/00 ,  A61B3/00

CPC classification number: G01M11/0228

Abstract: A lens-refracting characteristic measuring apparatus includes a measuring optical device to measure refracting characteristics of eyeglass lenses, an input device to input a pupillary distance of eyes of a person wearing eyeglasses, and an arithmetic and control circuit for obtaining refracting characteristics of the eyeglass lenses in positions of centers of right and left pupils of the person wearing the eyeglasses based on the pupillary distance of right and left eyes of the person wearing the eyeglasses input by the input device and the refracting characteristics measured by the measuring optical device.

Abstract translation: 透镜折射特性测量装置包括测量眼镜透镜的折射特性的测量光学装置，用于输入佩戴眼镜的人的眼睛的瞳孔距离的输入装置和用于获得眼镜透镜的折射特性的算术和控制电路 基于由输入装置输入的戴眼镜的人的左眼和左眼的瞳孔距离以及由测量光学装置测量的折射特性，佩戴眼镜的人的左右瞳孔的中心位置。

公开(公告)号：US07230693B2

公开(公告)日：2007-06-12

申请号：US11090202

申请日：2005-03-28

Applicant: Satoshi Imaizumi

Inventor： Satoshi Imaizumi

IPC: G01B9/00

CPC classification number: G01M11/0228 ,  G01M11/0285

Abstract: A lens meter for measuring optical characteristics of a subject lens to be measured includes at least three light sources for measurement, a projecting lens which projects measurement light bundles from the light sources onto the subject lens placed on a projecting-lens optical axis, a diaphragm having an aperture disposed at an anterior focal point of the projecting lens between the light sources and the projecting lens, and a two-dimensional photodetector photo-receiving the light bundles passing through the subject lens after passing through the aperture of the diaphragm and the projecting lens without the use of an image forming optical system, and the projecting lens is disposed so that the light sources is conjugate with the photodetector in a case where the subject lens with a specific diopter in the vicinity of 0D or a frequently-used specific diopter is placed on the optical axis.

Abstract translation: 用于测量要测量的被摄体透镜的光学特性的透镜仪包括至少三个用于测量的光源，将来自光源的测量光束投影到放置在投影透镜光轴上的被摄体透镜的投影透镜， 具有设置在所述投影透镜的前焦点之间的光源在所述光源和所述投影透镜之间的孔，以及二次光电检测器，所述二维光电检测器在通过所述光阑的所述孔之后通过所述被摄体透镜照射光束，并且所述突出部 在不使用图像形成光学系统的情况下，投影透镜被配置为使得在具有0D附近的特定屈光度的被摄体透镜或经常使用的特定屈光度的情况下，光源与光电检测器共轭 被放置在光轴上。

公开(公告)号：US20070086019A1

公开(公告)日：2007-04-19

申请号：US11604668

申请日：2006-11-27

Applicant: Xavier De Lega

Inventor： Xavier De Lega

IPC: G01B11/02

CPC classification number: G01B9/02084 ,  G01B9/02058 ,  G01B9/0209 ,  G01B11/2441 ,  G01M11/0228 ,  G01M11/0271 ,  G01N21/45

Abstract: Methods and related systems for determining properties of optical systems (e.g., interferometers) and/or optical elements (e.g., lenses and/or lens systems) are described. For example, information related to an optical thickness mismatch of an interferometer can be determined by providing scanning interferometry data. The data typically include obtaining one or more interference signals each corresponding to a different spatial location of a test object. A phase is determined for each of multiple frequencies of each interference signal. The information related to the optical thickness mismatch is determined based on the phase for each of the multiple frequencies of the interference signal(s).

Abstract translation: 描述了用于确定光学系统（例如，干涉仪）和/或光学元件（例如，透镜和/或透镜系统）的性质的方法和相关系统。 例如，可以通过提供扫描干涉测量数据来确定与干涉仪的光学厚度失配有关的信息。 数据通常包括获得每个对应于测试对象的不同空间位置的一个或多个干扰信号。 确定每个干扰信号的多个频率中的每一个的相位。 基于干涉信号的多个频率中的每一个的相位确定与光学厚度失配有关的信息。

公开(公告)号：US07142293B2

公开(公告)日：2006-11-28

申请号：US10960025

申请日：2004-10-08

Applicant: Ki-Jun Nam ,  Sang-Jun Han

Inventor： Ki-Jun Nam ,  Sang-Jun Han

IPC: G01B9/00

CPC classification number: G01M11/0228

Abstract: An optical system for an automatic lens meter for measuring the refractive power of a lens to be examined. The optical system includes a light source for generating a measuring light beam, a convex collimator lens, disposed a predetermined focal distance from the light source, for collimating the measuring light beam, so that the light beam move in parallel, an expanding concave lens, disposed downstream of a lens to be examined, for expanding the measuring light beam with respect to an optic axis, a plural-apertures stop, disposed downstream of the expanding concave lens and formed with a plurality of apertures along the circumference thereof at predetermined angular intervals, for separating the measuring light beam into a plurality of measuring light beams, a prism lens in which a convex lens and a fixed prism assembly are integrally formed, disposed directly downstream of the plural-apertures stop, having the convex lens to focus the plural measuring light beams passed through the plural-apertures stop, and the same number of prisms as the number of the plural apertures to deflect the focused light beams so as to maintain the light beams in the separated beams, and an image forming lens, disposed downstream of the prism lens, for forming aperture images of the measuring light beams, passed through the prism lens, on a two-dimensional sensor array.

Abstract translation: 一种用于测量被检眼镜的屈光度的自动透镜计的光学系统。 光学系统包括用于产生测量光束的光源，设置有与光源预定焦距的凸准直透镜，用于准直测量光束，使得光束平行移动，扩张凹透镜， 设置在待检查镜片的下游，用于相对于光轴扩展测量光束，设置在扩张凹透镜下游的多个孔止动件，并以预定的角度间隔沿其圆周形成有多个孔 ，用于将测量光束分离成多个测量光束，其中一个形成有凸透镜和固定棱镜组件的棱镜透镜，设置在多个孔径光阑的正下方，具有凸透镜以聚焦多个 测量通过多个孔的光束停止，以及与多个孔的数量相同数量的棱镜以使f偏转 将光束保持在分离的光束中;以及成像透镜，设置在棱镜透镜的下游，用于将通过棱镜透镜的测量光束的孔径图像形成在二维传感器上 数组。