公开(公告)号：US08900522B2

公开(公告)日：2014-12-02

申请号：US13504117

申请日：2010-10-26

Applicant: Xiou He ,  Changli Li ,  Zhaobin Zhang ,  Jingkun Liu ,  Mujun Yuan ,  Cong Zhou ,  Yuping Guo ,  Yonghua Zhao ,  Hainü Shen

Inventor： Xiou He ,  Changli Li ,  Zhaobin Zhang ,  Jingkun Liu ,  Mujun Yuan ,  Cong Zhou ,  Yuping Guo ,  Yonghua Zhao ,  Hainü Shen

IPC: F28D7/00 ,  C10G9/14 ,  C07C4/04

CPC classification number: C07C4/04 ,  C10G2400/20

Abstract: The invention relates to an ethylene cracking furnace having a multi-pass radiant coil, comprising at least one radiant section. In the radiant section there are provided with bottom burners and/or sidewall burners, and at least one set of multi-pass radiant coil longitudinally arranged in the radiant section. The multi-pass radiant coil is a four- to ten-pass type radiant coil. At least one tube of the multi-pass radiant coil is arranged to be spatially adjacent to a tube which is not consecutive to said at least one tube. With this arrangement, the thermal radiation influence between tubes with high temperature can be reduced, so that the tubes with low temperature can absorb the radiation heat from the tubes with high temperature. Therefore, the surface temperature of the tubes with high temperature can be reduced, thus extending the lifetime of the radiant coil and the operational cycle of the cracking furnace.

Abstract translation: 本发明涉及具有多遍辐射线圈的乙烯裂解炉，其包括至少一个辐射段。 在辐射部分中设置有底部燃烧器和/或侧壁燃烧器，以及纵向布置在辐射部分中的至少一组多通道辐射线圈。 多遍辐射线圈是四到十通的辐射线圈。 多通道辐射线圈的至少一个管被布置成在空间上与不与所述至少一个管连续的管相邻。 通过这种布置，可以降低具有高温的管之间的热辐射影响，使得具有低温的管可以高温地吸收来自管的辐射热。 因此，可以降低高温管的表面温度，从而延长辐射线圈的寿命和裂解炉的操作周期。

公开(公告)号：US08770753B2

公开(公告)日：2014-07-08

申请号：US13310626

申请日：2011-12-02

Applicant: Michael Hee ,  Jay Wei ,  David Huang ,  Qienyuan Zhou ,  Yonghua Zhao ,  Ben Jang ,  Tony Ko

Inventor： Michael Hee ,  Jay Wei ,  David Huang ,  Qienyuan Zhou ,  Yonghua Zhao ,  Ben Jang ,  Tony Ko

IPC: A61B3/14 ,  A61B3/10 ,  A61B3/12

CPC classification number: A61B3/102 ,  A61B3/0025 ,  A61B3/107 ,  A61B3/1225 ,  A61B3/14

Abstract: In accordance with some embodiments, a method of eye examination includes acquiring OCT data with a scan pattern centered on an eye cornea that includes n radial scans repeated r times, c circular scans repeated r times, and n* raster scans where the scan pattern is repeated m times, where each scan includes a A-scans, and where n is an integer that is 0 or greater, r is an integer that is 1 or greater, c is an integer that is 0 or greater, n* is an integer that is 0 or greater, m is an integer that is 1 or greater, and a is an integer greater than 1, the values of n, r, c, n*, and m being chosen to provide OCT data for a target measurement, and processing the OCT data to obtain the target measurement.

Abstract translation: 根据一些实施例，眼睛检查的方法包括以包括眼睛角膜为中心的扫描图案来获取OCT数据，该扫描图案包括重复r次的n个径向扫描，c次循环扫描重复r次，以及扫描模式为 重复m次，其中每个扫描包括A扫描，并且其中n是0或更大的整数，r是1或更大的整数，c是0或更大的整数，n *是整数 0或更大，m是1或更大的整数，a是大于1的整数，n，r，c，n *和m的值被选择为提供用于目标测量的OCT数据， 并处理OCT数据以获得目标测量。

公开(公告)号：US08605287B2

公开(公告)日：2013-12-10

申请号：US12506766

申请日：2009-07-21

Applicant: Tony H. Ko ,  Yonghua Zhao ,  David Huang

Inventor： Tony H. Ko ,  Yonghua Zhao ,  David Huang

IPC: G01B9/02

CPC classification number: A61B3/102 ,  A61B3/0025 ,  A61B5/0066 ,  A61B5/0073 ,  A61B5/7257 ,  G01B9/02004 ,  G01B9/0201 ,  G01B9/02021 ,  G01B9/02028 ,  G01B9/02044 ,  G01B9/02091

Abstract: An imager that can provide separated images corresponding to differing depths in a sample is presented. In accordance with some embodiments of the invention, an imager can include a light source; a sample arm that receives light from the light source, directs the light to a sample, and captures light returning from the sample; a modulation source that provides different modulations corresponding to differing imaging depths in the sample; a detector system to receive the captured light from the sample with the different modulations; and a processor that receives signals from the detector system and separates a plurality of images corresponding with the differing image depths in the sample.

Abstract translation: 呈现可以提供对应于样本中不同深度的分离图像的成像器。 根据本发明的一些实施例，成像器可以包括光源; 从光源接收光的样品臂将光引导到样品，并捕获从样品返回的光; 调制源，其提供对应于样本中不同成像深度的不同调制; 用不同调制方式从样品接收捕获的光的检测器系统; 以及处理器，其从所述检测器系统接收信号并且分离与所述样本中的不同图像深度对应的多个图像。

公开(公告)号：US07744221B2

公开(公告)日：2010-06-29

申请号：US11656075

申请日：2007-01-19

Applicant: Jay Wei ,  Ben Jang ,  David Huang ,  Yonghua Zhao

Inventor： Jay Wei ,  Ben Jang ,  David Huang ,  Yonghua Zhao

IPC: A61B3/00

CPC classification number: A61B3/102 ,  A61B3/113 ,  G06T7/11 ,  G06T2207/10101 ,  G06T2207/20128 ,  G06T2207/30041

Abstract: A method of performing an OCT image scan is presented. Other images are taken and a template is formed to correct the OCT images, for example, for eye motion, blood vessel placement, and center offset. In some embodiments, video images are taken simultaneously with the OCT images and utilized to correct the OCT images. In some embodiments, a template OCT image is formed prior to acquisition of the OCT images and the template OCT image is utilized as a template from which to correct all of the OCT images.

Abstract translation: 提出了执行OCT图像扫描的方法。 拍摄其他图像，并且形成模板以校正OCT图像，例如用于眼动，血管放置和中心偏移。 在一些实施例中，与OCT图像同时拍摄视频图像并用于校正OCT图像。 在一些实施例中，在获取OCT图像之前形成模板OCT图像，并且将模板OCT图像用作校正所有OCT图像的模板。

公开(公告)号：US20100033727A1

公开(公告)日：2010-02-11

申请号：US12506766

申请日：2009-07-21

Applicant: Tony H. Ko ,  Yonghua Zhao ,  David Huang

Inventor： Tony H. Ko ,  Yonghua Zhao ,  David Huang

IPC: G01J3/45 ,  G01N21/55

CPC classification number: A61B3/102 ,  A61B3/0025 ,  A61B5/0066 ,  A61B5/0073 ,  A61B5/7257 ,  G01B9/02004 ,  G01B9/0201 ,  G01B9/02021 ,  G01B9/02028 ,  G01B9/02044 ,  G01B9/02091

Abstract: An imager that can provide separated images corresponding to differing depths in a sample is presented. In accordance with some embodiments of the invention, an imager can include a light source; a sample arm that receives light from the light source, directs the light to a sample, and captures light returning from the sample; a modulation source that provides different modulations corresponding to differing imaging depths in the sample; a detector system to receive the captured light from the sample with the different modulations; and a processor that receives signals from the detector system and separates a plurality of images corresponding with the differing image depths in the sample.

Abstract translation: 呈现可以提供对应于样本中不同深度的分离图像的成像器。 根据本发明的一些实施例，成像器可以包括光源; 从光源接收光的样品臂将光引导到样品，并捕获从样品返回的光; 调制源，其提供对应于样本中不同成像深度的不同调制; 用不同调制方式从样品接收捕获的光的检测器系统; 以及处理器，其从所述检测器系统接收信号并且分离与所述样本中的不同图像深度对应的多个图像。

公开(公告)号：US07480058B2

公开(公告)日：2009-01-20

申请号：US11656222

申请日：2007-01-19

Applicant: Yonghua Zhao ,  Jay Wei

Inventor： Yonghua Zhao ,  Jay Wei

IPC: G01B9/02

CPC classification number: G01B9/02044 ,  G01B9/02068 ,  G01B9/02087 ,  G01B9/02091 ,  G01J3/02 ,  G01J3/0289 ,  G01J3/45 ,  G01J3/4537

Abstract: A Fourier-domain optical coherence tomography (OCT) imager is presented. An OCT imager according to the present invention can have an auto-alignment process. The auto-alignment process automatically adjusts at least one optical component of a spectrometer of the imager so that the spectrometer is aligned during an imaging session. In addition to the auto-alignment process, OCT spectra are normalized for background spectra and for noise characteristics in order to provide a more accurate and clear OCT image.

Abstract translation: 提出了傅里叶域光学相干断层扫描（OCT）成像仪。 根据本发明的OCT成像器可以具有自动对准过程。 自动对准过程自动调整成像仪的光谱仪的至少一个光学组件，使得光谱仪在成像会话期间对准。 除了自动对准过程之外，为了提供更精确和更清晰的OCT图像，将OCT光谱归一化用于背景光谱和噪声特性。

公开(公告)号：US20070188765A1

公开(公告)日：2007-08-16

申请号：US11656222

申请日：2007-01-19

Applicant: Yonghua Zhao ,  Jay Wei

Inventor： Yonghua Zhao ,  Jay Wei

IPC: G01B9/02 ,  G01B11/02 ,  G01J3/45

CPC classification number: G01B9/02044 ,  G01B9/02068 ,  G01B9/02087 ,  G01B9/02091 ,  G01J3/02 ,  G01J3/0289 ,  G01J3/45 ,  G01J3/4537

Abstract: A Fourier-domain optical coherence tomography (OCT) imager is presented. An OCT imager according to the present invention can have an auto-alignment process. The auto-alignment process automatically adjusts at least one optical component of a spectrometer of the imager so that the spectrometer is aligned during an imaging session. In addition to the auto-alignment process, OCT spectra are normalized for background spectra and for noise characteristics in order to provide a more accurate and clear OCT image.

Abstract translation: 提出了傅里叶域光学相干断层扫描（OCT）成像仪。 根据本发明的OCT成像器可以具有自动对准过程。 自动对准过程自动调整成像仪的光谱仪的至少一个光学组件，使得光谱仪在成像会话期间对准。 除了自动对准过程之外，为了提供更精确和更清晰的OCT图像，将OCT光谱归一化用于背景光谱和噪声特性。

公开(公告)号：US06549801B1

公开(公告)日：2003-04-15

申请号：US09574560

申请日：2000-05-19

Applicant: Zhongping Chen ,  Yonghua Zhao ,  J. Stuart Nelson ,  Johannes F. DeBoer

Inventor： Zhongping Chen ,  Yonghua Zhao ,  J. Stuart Nelson ,  Johannes F. DeBoer

IPC: A61B505

CPC classification number: A61B5/0073 ,  A61B5/0066 ,  A61B5/0261 ,  G01B9/0201 ,  G01B9/02045 ,  G01B9/02082 ,  G01B9/02091 ,  G01B2290/35 ,  G01B2290/70 ,  G01N21/4795

Abstract: The invention is a fast-scanning ODT system that uses phase information derived from a Hilbert transformation to increase the sensitivity of flow velocity measurements while maintaining high spatial resolution. The significant increases in scanning speed and velocity sensitivity realized by the invention make it possible to image in vivo blood flow in human skin. The method of the invention overcomes the inherent limitations of the prior art ODT by using a phase change between sequential line scans for velocity image reconstruction. The ODT signal phase or phase shifts at each pixel can be determined from the complex function, {tilde over (&Ggr;)}ODT(t), which is determined through analytic continuation of the measured interference fringes function, &Ggr;ODT(t), by use of a Hilbert transformation, by electronic phase demodulation, by optical means, or a fast Fourier transformation. The phase change in each pixel between axial-line scans is then used to calculate the Doppler frequency shift. Sequential measurements of a single line scan, measurements of sequential line scans or measurements of line scans in sequential frames may be used. Because the time between line scans is much longer than the pixel time window, very small Doppler shifts can be detected with this technique. In addition, spatial resolution and velocity sensitivity are decoupled. Furthermore, because two axial-line scans are compared at the same location, speckle modulations in the fringe signal cancel each other and, therefore, will not affect the phase-difference calculation.

Abstract translation: 本发明是一种快速扫描ODT系统，其使用从希尔伯特变换得到的相位信息来增加流速测量的灵敏度，同时保持高空间分辨率。 通过本发明实现的扫描速度和速度灵敏度的显着增加使得可以对人体皮肤中的体内血流进行成像。 本发明的方法通过使用用于速度图像重建的连续线扫描之间的相位变化来克服现有技术ODT的固有限制。 可以从复函数GAMMAODT（t）确定每个像素处的ODT信号相位或相移，该复函数GAMMAODT（t）通过使用希尔伯特变换通过电子分析法来测量干涉条纹函数GAMMAODT（t） 相位解调，通过光学方式，或快速傅里叶变换。 然后使用轴线扫描之间的每个像素的相位变化来计算多普勒频移。 可以使用单行扫描的顺序测量，顺序线扫描的测量或连续帧中的线扫描的测量。 因为线扫描之间的时间比像素时间窗口长得多，所以可以用这种技术来检测非常小的多普勒频移。 此外，空间分辨率和速度灵敏度是去耦合的。 此外，由于在相同位置处比较两个轴线扫描，所以条纹信号中的斑点调制彼此抵消，因此不会影响相位差计算。

公开(公告)号：US07140730B2

公开(公告)日：2006-11-28

申请号：US11262133

申请日：2005-10-28

Applicant: Jay Wei ,  Yonghua Zhao

Inventor： Jay Wei ,  Yonghua Zhao

IPC: A61B3/13 ,  G01B9/02

CPC classification number: A61B3/14 ,  A61B3/1025

Abstract: An eye examination instrument is presented that can perform multiple eye tests. The instrument includes an illumination optical path and an imaging optical path, wherein a focus element in the illumination optical path is mechanically coupled to a focus element in the imaging optical path. In some embodiments, the eye examination instrument can perform a visual eye test, a fundus imaging test, and an optical coherence tomography test.

Abstract translation: 提出了可以进行多次眼睛检查的眼科检查仪器。 仪器包括照明光路和成像光路，其中照明光路中的聚焦元件机械耦合到成像光路中的聚焦元件。 在一些实施例中，眼睛检查仪器可以执行视觉眼睛测试，眼底成像测试和光学相干断层摄影测试。

公开(公告)号：US06741359B2

公开(公告)日：2004-05-25

申请号：US10153297

申请日：2002-05-22

Applicant: Jay Wei ,  Yonghua Zhao ,  James P. Foley

Inventor： Jay Wei ,  Yonghua Zhao ,  James P. Foley

IPC: G01B902

CPC classification number: A61B3/102 ,  G01B9/02002 ,  G01B9/0203 ,  G01B9/02091 ,  G01B2290/65

Abstract: One embodiment of the present invention is a scanner for a beam of scanning optical coherence tomography (“OCT”) radiation that includes: (a) a source of OCT radiation; (b) a scanner; and (c) scanning optics whose image surface has a negative field curvature.

Abstract translation: 本发明的一个实施例是用于扫描光学相干断层摄影（“OCT”）辐射束的扫描器，其包括：（a）OCT辐射源; （b）扫描仪; 和（c）其图像表面具有负场曲率的扫描光学器件。