公开(公告)号：US20040240069A1

公开(公告)日：2004-12-02

申请号：US10866868

申请日：2004-06-15

申请人： Fujitsu Limited

发明人： Masataka Shirasaki ,  Simon Cao

IPC分类号： G02B005/28

CPC分类号： G02B27/144 ,  G02B6/29311 ,  G02B6/29358 ,  G02B6/29361 ,  G02B6/29392 ,  G02B6/29394 ,  G02B6/29395 ,  G02B27/0087 ,  G02B27/1006 ,  G02B27/106 ,  G02B27/1073 ,  G02B27/1086 ,  G02B27/126 ,  G02B27/145 ,  G02B27/148 ,  G02B27/52 ,  H04B10/25133

摘要： An optical apparatus for producing chromatic dispersion. The apparatus includes a virtually imaged phased array (VIPA) generator, a mirror and a lens. The VIPA generator receives an input light at a respective wavelength and produces a corresponding collimated output light traveling from the VIPA generator in a direction determined by the wavelength of the input light, the output light thereby being spatially distiguishable from an output light produced for an input light at a different wavelength. The mirror has a cone shape, or a modified cone shape. The lens focuses the output light traveling from the VIPA generator onto the mirror so that the mirror reflects the output light. The reflected light is directed by the lens back to the VIPA generator. In this manner, the apparatus provides chromatic dispersion to the input light. The modified cone shape of the mirror can be designed so that the apparatus provides a uniform chromatic dispersion to light in the same channel of a wavelength division multiplexed light. The mirror can be moved in a direction perpendicular to an angular dispersion direction of the VIPA generator, to change the amount of chromatic dispersion provided to the input light.

摘要翻译： 一种用于产生色散的光学装置。 该装置包括虚拟成像的相控阵（VIPA）发生器，反射镜和透镜。 VIPA发生器接收相应波长的输入光，并产生从VIPA发生器沿由输入光的波长确定的方向行进的对准的准直输出光，从而与从输入产生的输出光空间上不相关 在不同波长的光。 镜子有一个锥形或一个改锥形。 透镜将从VIPA发生器传播的输出光聚焦到镜子上，使镜子反射出输出光。 反射光被透镜引导回到VIPA发生器。 以这种方式，该装置向输入光提供色散。 反射镜的修改锥形可以被设计成使得该装置对波分复用光的相同通道中的光提供均匀的色散。 反射镜可以在与VIPA发生器的角度分散方向垂直的方向上移动，以改变提供给输入光的色散量。

公开(公告)号：US20020195538A1

公开(公告)日：2002-12-26

申请号：US09875435

申请日：2001-06-06

发明人： Edward Raymond Dowsk JR. ,  Carol Jean Cogswell

IPC分类号： G02F001/01

CPC分类号： G02B27/0025 ,  G02B27/46 ,  G02B27/52

摘要： The present invention provides extended depth of field or focus to conventional Phase Contrast imaging systems. This is accomplished by including a Wavefront Coding mask in the system to apply phase variations to the wavefront transmitted by the Phase Object being imaged. The phase variations induced by the Wavefront Coding mask code the wavefront and cause the optical transfer function to remain essentially constant within some range away from the in-focus position. This provides a coded image at the detector. Post processing decodes this coded image, resulting in an in-focus image over an increased depth of field.

摘要翻译： 本发明为常规相位对比度成像系统提供了扩展的景深或焦点。 这是通过在系统中包括波前编码掩码来实现的，以将相位变化应用于正被成像的相位对象传输的波前。 由波前编码掩模引起的相位变化对波前进行编码，并使光学传递函数在远离对焦位置的某个范围内保持基本恒定。 这在检测器处提供了编码图像。 后处理解码该编码图像，导致在增加的景深上的对焦图像。

公开(公告)号：US20010030816A1

公开(公告)日：2001-10-18

申请号：US09875919

申请日：2001-06-08

申请人： FUJITSU LIMITED

发明人： Masataka Shirasaki ,  Simon Cao

IPC分类号： G02B027/00

CPC分类号： G02B27/144 ,  G02B6/29311 ,  G02B6/29358 ,  G02B6/29361 ,  G02B6/29392 ,  G02B6/29394 ,  G02B6/29395 ,  G02B27/0087 ,  G02B27/1006 ,  G02B27/106 ,  G02B27/1073 ,  G02B27/1086 ,  G02B27/126 ,  G02B27/145 ,  G02B27/148 ,  G02B27/52 ,  H04B10/25133

摘要： An optical apparatus for producing chromatic dispersion. The apparatus includes a virtually imaged phased array (VIPA) generator, a mirror and a lens. The VIPA generator receives an input light at a respective wavelength and produces a corresponding collimated output light traveling from the VIPA generator in a direction determined by the wavelength of the input light, the output light thereby being spatially distinguishable from an output light produced for an input light at a different wavelength. The mirror has a cone shape, or a modified cone shape. The lens focuses the output light traveling from the VIPA generator onto the mirror so that the mirror reflects the output light. The reflected light is directed by the lens back to the VIPA generator. In this manner, the apparatus provides chromatic dispersion to the input light. The modified cone shape of the mirror can be designed so that the apparatus provides a uniform chromatic dispersion to light in the same channel of a wavelength division multiplexed light. The mirror can be moved in a direction perpendicular to an angular dispersion direction of the VIPA generator, to change the amount of chromatic dispersion provided to the input light.

摘要翻译： 一种用于产生色散的光学装置。 该装置包括虚拟成像的相控阵（VIPA）发生器，反射镜和透镜。 VIPA发生器接收相应波长的输入光，并产生从VIPA发生器沿由输入光的波长确定的方向行进的对准的准直输出光，从而与输入光产生的输出光在空间上区别开 在不同波长的光。 镜子有一个锥形或一个改锥形。 透镜将从VIPA发生器传播的输出光聚焦到镜子上，使镜子反射出输出光。 反射光被透镜引导回到VIPA发生器。 以这种方式，该装置向输入光提供色散。 反射镜的修改锥形可以被设计成使得该装置对波分复用光的相同通道中的光提供均匀的色散。 反射镜可以在与VIPA发生器的角度分散方向垂直的方向上移动，以改变提供给输入光的色散量。

公开(公告)号：US5066119A

公开(公告)日：1991-11-19

申请号：US527435

申请日：1990-05-23

申请人： Patrick Bertrand

发明人： Patrick Bertrand

IPC分类号： G01M11/00 ,  G01B11/255 ,  G01M11/02 ,  G02B27/44 ,  G02B27/52

CPC分类号： G01M11/0257 ,  G01B11/255 ,  G02B27/52 ,  G02B27/4211

摘要： A device for phase detection testing any kind of optical system, in particular an ophthalmic lens, comprises, along an optical path, an emission device which constitutes a light source, a holding station which receives the optical system under test, an array, a receiving device which receives the image observable downstream of the array, and a data processing device which exploits this image by phase detection. Between the light source and the holding station is a separator element which constitutes on the axis of the optical path a semi-reflecting surface. The receiving device is disposed to the side, in line with the separator element. The data processing device includes a ray plotting program and a calibration system allowing for theoretical and manufacturing aberrations due to the separator element.

摘要翻译： 用于相位检测测试任何种类的光学系统，特别是眼科镜片的装置包括沿着光路的构成光源的发射装置，接收被测光学系统的保持站，阵列，接收 接收在阵列下游可观察到的图像的装置，以及通过相位检测利用该图像的数据处理装置。 在光源和保持站之间是在光路的轴线上构成半反射面的分离元件。 接收装置设置在与分离器元件一致的一侧。 数据处理装置包括射线绘制程序和校准系统，其允许理论和制造由分离器元件引起的像差。

公开(公告)号：US4861975A

公开(公告)日：1989-08-29

申请号：US310027

申请日：1989-02-08

申请人： Gordon S. Kino ,  Timothy R. Corle

发明人： Gordon S. Kino ,  Timothy R. Corle

IPC分类号： G01B11/02 ,  G02B7/32 ,  G02B27/52

CPC分类号： G02B7/32 ,  G01B11/026 ,  G02B27/52

摘要： Variable focus optical system in which a light beam is projected through a transparent flat cell of electro-optic material coated on both sides with a layer of transparent conductive material. The layer on one side of the cell is divided into a central disc region and a ring shaped region which surrounds the central region. A lens focuses the light transmitted through the cell at a predetermined distance from the lens. An AC voltage is applied between one of the regions and the layer on the opposite side of the cell to vary the phase of the light passing through that region and focus that portion of the light at a distance which varies periodically with the AC voltage. A reflective surface is positioned at the distance from the lens where the unshifted light is focused, and a detector receives the light reflected from the reflective surface and provides an output signal indicative of the position of the surface.

摘要翻译： 可变焦光学系统，其中光束通过透明的电光材料扁平单元投影，两侧均涂覆有一层透明导电材料。 单元一侧的层分为中心圆盘区域和围绕中心区域的环形区域。 透镜将透过单元的光聚焦在与透镜预定距离处。 在区域之一和单元的相对侧上的层之间施加AC电压以改变通过该区域的光的相位，并将光的该部分聚焦在与AC电压周期性变化的距离处。 反射表面定位在与未被移动的光聚焦的透镜的距离处，并且检测器接收从反射表面反射的光并且提供表示表面位置的输出信号。

公开(公告)号：US09134110B2

公开(公告)日：2015-09-15

申请号：US13695344

申请日：2011-05-02

申请人： Hidenao Iwai ,  Masatoshi Fujimoto

发明人： Hidenao Iwai ,  Masatoshi Fujimoto

IPC分类号： G01B9/02 ,  G01N21/41 ,  G02B21/14 ,  G02B27/52 ,  G03H1/04 ,  G03H1/08

CPC分类号： G01B9/02045 ,  G01N21/41 ,  G02B21/14 ,  G02B27/52 ,  G03H1/0443 ,  G03H1/0866 ,  G03H2001/0447 ,  G03H2001/045 ,  G03H2001/0463 ,  G03H2210/62

摘要： Provided is an observation device which can obtain a phase image of a moving object rapidly with high sensitivity even when using a photodetector having a slow read-out speed per pixel. The observation device 1 comprises a light source 10, a first modulator 20, a second modulator 30, a lens 40, a beam splitter 41, a photodetector 46, and an arithmetic unit 50. The lens 40 receives scattered light generated by a moving object 2 and forms a Fourier transform image of the object 2. The photodetector 46 outputs data representing a sum in a v direction of data temporally changing at a frequency corresponding to a Doppler shift frequency of the light having reached each position on a light-receiving surface through the lens 40 at each position in a u direction at each time. The arithmetic unit 50 obtains an image of the object 2 according to the output of the photodetector 46.

公开(公告)号：US20130094027A1

公开(公告)日：2013-04-18

申请号：US13695330

申请日：2011-05-02

申请人： Hidenao Iwai ,  Masatoshi Fujimoto

发明人： Hidenao Iwai ,  Masatoshi Fujimoto

IPC分类号： G01B9/02

CPC分类号： G01B9/02045 ,  G01N21/41 ,  G02B21/14 ,  G02B27/52 ,  G03H1/0443 ,  G03H1/0866 ,  G03H2001/0447 ,  G03H2001/045 ,  G03H2001/0463 ,  G03H2210/62

摘要： Provided is an observation device which can obtain a phase image of a moving object rapidly with high sensitivity even when using a photodetector having a slow read-out speed per pixel. The observation device 1 comprises a light source 10, a first modulator 20, a second modulator 30, a lens 40, a beam splitter 41, a photodetector 46, and an arithmetic unit 50. The lens 40 receives scattered light generated by a moving object 2 and forms a Fourier transform image of the object 2. The photodetector 46 outputs data representing a sum in a v direction of data temporally changing at a frequency corresponding to a Doppler shift frequency of the light having reached each position on a light-receiving surface through the lens 40 at each position in a u direction at each time. The arithmetic unit 50 obtains an image of the object 2 according to the output of the photodetector 46.

摘要翻译： 提供一种观察装置，即使使用每像素读出速度慢的光检测器，也能够以高灵敏度快速获得移动体的相位图像。 观察装置1包括光源10，第一调制器20，第二调制器30，透镜40，分束器41，光电检测器46和运算单元50.透镜40接收由移动物体产生的散射光 形成物体2的傅立叶变换图像。光电检测器46输出表示在光接收表面上到达每个位置的光的多普勒频移对应的频率的时间上变化的数据的AV方向上的数据的数据通过 每次在au方向的每个位置处的透镜40。 算术单元50根据光检测器46的输出获得对象2的图像。

公开(公告)号：US08351116B2

公开(公告)日：2013-01-08

申请号：US12920662

申请日：2009-03-05

申请人： Yutaka Suenaga

发明人： Yutaka Suenaga

IPC分类号： G02B21/14 ,  G02B27/52

CPC分类号： G02B21/14 ,  G02B27/52

摘要： In order to furnish an optical component and a phase contrast microscope which can indicate difference of phases of a specimen including information of frequency and color, at least two optical mediums are arranged side by side so that a constant difference of the phases is generated.

摘要翻译： 为了提供可以指示包括频率和颜色的信息的样本的相位差的光学部件和相差显微镜，至少两个光学介质并排布置，从而产生恒定的相位差。

公开(公告)号：US08153948B1

公开(公告)日：2012-04-10

申请号：US12848608

申请日：2010-08-02

申请人： Shrenik Deliwala ,  Allen M. Flusberg

发明人： Shrenik Deliwala ,  Allen M. Flusberg

IPC分类号： G02F1/01

CPC分类号： G02B23/12 ,  G01J5/38 ,  G01J2005/0077 ,  G01J2005/583 ,  G02B27/52 ,  G02F1/0126 ,  G02F1/0147 ,  G02F2203/11 ,  G03B42/00

摘要： Image acquisition systems utilizing a pixilated transducer.

摘要翻译： 使用像素化传感器的图像采集系统。

公开(公告)号：US08004762B2

公开(公告)日：2011-08-23

申请号：US12250343

申请日：2008-10-13

申请人： Wade Thomas Cathey, Jr. ,  Edward Raymond Dowski, Jr.

发明人： Wade Thomas Cathey, Jr. ,  Edward Raymond Dowski, Jr.

IPC分类号： G02B5/18 ,  G06K9/40

CPC分类号： G02B21/14 ,  G01S3/7835 ,  G01S11/12 ,  G02B5/00 ,  G02B7/365 ,  G02B7/40 ,  G02B27/0025 ,  G02B27/46 ,  G02B27/52

摘要： Systems and methods for generating an optical image include forming an optical image with at least one optical element of an optical imager while modifying wavefront phase. Modifying the phase does not reduce an optical bandpass limited by an aperture of the optical imager. The systems and methods also include detecting the optical image over a range of spatial frequencies such that there are no zeros in an optical transfer function of the optical imager over detected spatial frequencies within the optical bandpass and over an extended depth of focus that is larger than a depth of focus occurring without modifying wavefront phase.

摘要翻译： 用于产生光学图像的系统和方法包括在修改波前相位的同时用光学成像器的至少一个光学元件形成光学图像。 修改相位不会减少由光学成像器的孔径限制的光学带通。 这些系统和方法还包括在空间频率范围内检测光学图像，使得光学成像器的光学传递函数中的零不会超过光学带通内的检测到的空间频率，并且在扩展的焦深范围内，大于 发生深度焦点而不修改波前相位。