公开(公告)号：US20060055935A1

公开(公告)日：2006-03-16

申请号：US11221925

申请日：2005-09-09

申请人： Pavel Cheben ,  Ian Powell ,  Siegfried Janz ,  Dan-Xia Xu

发明人： Pavel Cheben ,  Ian Powell ,  Siegfried Janz ,  Dan-Xia Xu

IPC分类号： G01B9/02

CPC分类号： G01J3/02 ,  G01J3/0205 ,  G01J3/021 ,  G01J3/024 ,  G01J3/0256 ,  G01J3/14 ,  G01J3/18 ,  G01J3/4531 ,  G01J3/4532 ,  G02B6/12019

摘要： A spectroscopic method and system for the spectral analysis of an optical signal directed to a wavelength dispersive component having two interleaved dispersive devices. For a single wavelength, the optical signal exiting the interleaved dispersive devices includes two wavefronts generally disposed at an angle to one another and producing an interference pattern. The interference pattern is detected and subsequently analyzed via a Fourier transform to produce the optical spectrum of the input beam. The method and system are applicable in a planar waveguide environment, in reflection and transmission geometries.

摘要翻译： 用于对具有两个交错色散装置的波长色散分量的光信号进行光谱分析的光谱方法和系统。 对于单个波长，离开交错色散装置的光信号包括通常以彼此成角度地设置并产生干涉图案的两个波前。 通过傅立叶变换来检测并随后分析干涉图案以产生输入光束的光谱。 该方法和系统适用于平面波导环境，反射和透射几何形状。

公开(公告)号：US07317535B2

公开(公告)日：2008-01-08

申请号：US11221925

申请日：2005-09-09

申请人： Pavel Cheben ,  Ian Powell ,  Siegfried Janz ,  Dan-Xia Xu

发明人： Pavel Cheben ,  Ian Powell ,  Siegfried Janz ,  Dan-Xia Xu

IPC分类号： G01B9/02

CPC分类号： G01J3/02 ,  G01J3/0205 ,  G01J3/021 ,  G01J3/024 ,  G01J3/0256 ,  G01J3/14 ,  G01J3/18 ,  G01J3/4531 ,  G01J3/4532 ,  G02B6/12019

摘要： A spectroscopic method and system for the spectral analysis of an optical signal directed to a wavelength dispersive component having two interleaved dispersive devices. For a single wavelength, the optical signal exiting the interleaved dispersive devices includes two wavefronts generally disposed at an angle to one another and producing an interference pattern. The interference pattern is detected and subsequently analyzed via a Fourier transform to produce the optical spectrum of the input beam. The method and system are applicable in a planar waveguide environment, in reflection and transmission geometries.

摘要翻译： 用于对具有两个交错色散装置的波长色散分量的光信号进行光谱分析的光谱方法和系统。 对于单个波长，离开交错色散装置的光信号包括通常以彼此成角度地设置并产生干涉图案的两个波前。 通过傅立叶变换来检测并随后分析干涉图案以产生输入光束的光谱。 该方法和系统适用于平面波导环境，反射和透射几何形状。

公开(公告)号：US4826299A

公开(公告)日：1989-05-02

申请号：US8830

申请日：1987-01-30

申请人： Ian Powell

发明人： Ian Powell

IPC分类号： G02B3/00 ,  G02B5/04 ,  G02B13/18

CPC分类号： G02B5/04 ,  G02B3/00

摘要： A new type of lens is described. The lens has the appearance of a prism with a relatively sharp radius at the apex. This lens finds an application in expanding a laser beam in one direction only.

摘要翻译： 描述了一种新型的镜头。 透镜具有在顶点处具有相对尖锐半径的棱镜的外观。 该镜头只能在一个方向上扩展激光束。

公开(公告)号：US08491120B2

公开(公告)日：2013-07-23

申请号：US12988887

申请日：2009-04-22

申请人： David Alexander Kahn ,  Ian Powell

发明人： David Alexander Kahn ,  Ian Powell

IPC分类号： A61B3/14 ,  A61B3/00

CPC分类号： A61B5/14555 ,  A61B3/12 ,  A61B5/0075 ,  A61B5/021 ,  G01J3/10 ,  G01J3/32 ,  G01N21/21 ,  G01N21/55 ,  G01N21/6486 ,  G01N2201/062

摘要： A method and apparatus for quantitatively imaging the retinal fundus. The method for retinal health assessment comprises imaging the retinal fundus of a patient's eye at different wavelengths within a spectral range and determining spectral reflectivity of the retina for each pixel within a field of view (FOV). The retinal health is assessed based on the spectral reflectivity of the retina. The metabolic and anatomical activity of the eye is monitored to detect, at the earliest stage, activity that could lead to the onset of blinding eye diseases such as macular degeneration, diabetic retinopathy, glaucoma, cataracts, etc.

摘要翻译： 一种定量成像视网膜眼底的方法和装置。 用于视网膜健康评估的方法包括在光谱范围内对不同波长的患者眼睛的视网膜眼底进行成像，并且确定视场（FOV）内的每个像素的视网膜的光谱反射率。 基于视网膜的光谱反射率来评估视网膜健康。 监测眼睛的代谢和解剖活动，以便在最初阶段检测可能导致眼睛疾病如黄斑变性，糖尿病性视网膜病变，青光眼，白内障等致盲的活动。

公开(公告)号：US20110043756A1

公开(公告)日：2011-02-24

申请号：US12988887

申请日：2009-04-22

申请人： David Alexander Kahn ,  Ian Powell

发明人： David Alexander Kahn ,  Ian Powell

IPC分类号： A61B3/12

CPC分类号： A61B5/14555 ,  A61B3/12 ,  A61B5/0075 ,  A61B5/021 ,  G01J3/10 ,  G01J3/32 ,  G01N21/21 ,  G01N21/55 ,  G01N21/6486 ,  G01N2201/062

摘要： A method and apparatus for quantitatively imaging the retinal fundus. The method for retinal health assessment comprises imaging the retinal fundus of a patient's eye at different wavelengths within a spectral range and determining spectral reflectivity of the retina for each pixel within a field of view (FOV). The retinal health is assessed based on the spectral reflectivity of the retina. The metabolic and anatomical activity of the eye is monitored to detect, at the earliest stage, activity that could lead to the onset of blinding eye diseases such as macular degeneration, diabetic retinopathy, glaucoma, cataracts, etc.

摘要翻译： 一种定量成像视网膜眼底的方法和装置。 用于视网膜健康评估的方法包括在光谱范围内对不同波长的患者眼睛的视网膜眼底进行成像，并且确定视场（FOV）内的每个像素的视网膜的光谱反射率。 基于视网膜的光谱反射率来评估视网膜健康。 监测眼睛的代谢和解剖活动，以便在最初阶段检测可能导致眼睛疾病如黄斑变性，糖尿病性视网膜病变，青光眼，白内障等致盲的活动。

公开(公告)号：US5631778A

公开(公告)日：1997-05-20

申请号：US585693

申请日：1996-01-16

申请人： Ian Powell

发明人： Ian Powell

IPC分类号： G02B13/06 ,  G02B13/08 ,  G02B17/00 ,  G02B17/08 ,  G03B37/00 ,  G03B37/06

CPC分类号： G02B13/06 ,  G02B17/0856

摘要： A new panoramic/fish-eye imaging system for projecting a 360 degree cylindrical field of view onto a two-dimensional annular format is described. It is rotationally symmetrical and comprises two groups of optics, each having very distinct functions. The front group of optics is basically a catoptric system employing a concave and convex mirror for converting the extreme field angles to a more manageable intermediate image. The rear group acts as a relay lens to transfer the intermediate image formed by the front group to some accessible location downstream. For improved overall performance, aberration compensation of the front group is included in the design of the relay optics. A further refinement to the design is the inclusion of an additional optical element in the form of refracting negative shell located in front of the entire arrangement. This increases the effective field of view and is useful when fields of view exceeding 180 degrees are required.

摘要翻译： 描述了一种用于将360度圆柱形视野投影到二维环形格式的新的全景/鱼眼成像系统。 它是旋转对称的，包括两组光学元件，每组具有非常不同的功能。 前面的光学组件基本上是一个使用凹凸镜的反射系统，用于将极端场角转换成更易于管理的中间图像。 后组用作中继透镜，以将由前组形成的中间图像传送到下游的可访问位置。 为了改善整体性能，前组的像差补偿包括在继电器光学器件的设计中。 对设计的进一步细化是包括以位于整个布置前面的折射负壳形式的附加光学元件。 这增加了有效的视野，并且当需要超过180度的视野时是有用的。

公开(公告)号：US20060144170A1

公开(公告)日：2006-07-06

申请号：US10532154

申请日：2003-10-09

申请人： Andrew Stephen ,  Ian Roberts ,  Ian Powell ,  Steven Holmes

发明人： Andrew Stephen ,  Ian Roberts ,  Ian Powell ,  Steven Holmes

IPC分类号： G01N19/00

CPC分类号： G01V3/12

摘要： An integrated sweep kit provides for the detection and location of covert electronic eavesdropping devices of both the radiating type (ie. transmitting electromagnetic energy) and the non-radiating type (ie. not transmitting electromagnetic energy). The kit includes at least one non-radiating device sensor for actively transmitting a detection signal, which detection signal is adapted to trigger a response from a normally non-radiating device; and at least one radiating device sensor for passively receiving a signal generated by a radiating device. A synchronization means is used for consecutively activating operation of the non-radiating device sensor and the radiating device sensor during sequential time slots so that the sensors do not interfere with one another.

摘要翻译： 集成扫描套件提供了辐射型（即传输电磁能量）和非辐射型（即不传输电磁能）的隐蔽电子窃听设备的检测和定位。 该套件包括用于主动发送检测信号的至少一个非辐射装置传感器，该检测信号适于触发来自正常非辐射装置的响应; 以及用于被动地接收由辐射装置产生的信号的至少一个辐射装置传感器。 同步装置用于在连续时隙期间连续激活非辐射装置传感器和辐射装置传感器的操作，使得传感器彼此不会相互干扰。

公开(公告)号：US5473474A

公开(公告)日：1995-12-05

申请号：US101533

申请日：1993-07-16

申请人： Ian Powell

发明人： Ian Powell

IPC分类号： G02B13/06 ,  G02B17/06 ,  G02B17/08

CPC分类号： G02B13/06 ,  G02B17/061 ,  G02B17/0808

摘要： A panoramic imaging system for projecting a 360 degree cylindrical field of view onto a two-dimensional annular format has a panoramic imaging block with a concentric axis of symmetry, two refractive surfaces and two reflective surfaces. The first reflective surface is a concave conicoid of revolution with the conic constant in the range from -0.6 to +2.0. In an embodiment of the invention, the second refractive surface (the last in the path of rays) is flat, while the first reflective surface, the second reflective surface and the first refractive surface are all spherical.

摘要翻译： 用于将360度圆柱视野投影到二维环形格式的全景成像系统具有具有同心对称轴，两个折射表面和两个反射表面的全景成像块。 第一反射表面是一个凹形的旋转圆锥形，锥形常数在-0.6至+2.0的范围内。 在本发明的一个实施例中，第二折射表面（光线路径中的最后一个）是平坦的，而第一反射表面，第二反射表面和第一折射表面都是球形的。

公开(公告)号：US5161062A

公开(公告)日：1992-11-03

申请号：US728343

申请日：1991-07-11

申请人： David Shafer ,  Ian Powell

发明人： David Shafer ,  Ian Powell

IPC分类号： G02B13/24 ,  G02B17/00 ,  G02B17/08 ,  G03B27/32 ,  G03F7/20 ,  H01L21/027 ,  H01L21/30

CPC分类号： G03F7/70058 ,  G02B13/24 ,  G02B17/008 ,  G02B17/08 ,  G02B17/0892

摘要： A photolithographic projection optical system comprising: a source of exposure energy for generating a beam of energy; an optical element located in the path of the beam for receiving the beam of energy and passing the beam therethrough; a refractive lens assembly located in the path of the portion of the beam for receiving and transmitting the beam of energy, the refractive lens assembly comprising at least one meniscus lens, a plano-convex lens, and an air gap disposed between the meniscus lens and the plano-convex lens; a reticle element located in the path of the portion of the beam, the reticle element having a uniform thickness and being positioned for permitting the beam to pass through the thickness and through the lens assembly to the optical element. Alternatively, the air gap of the refractive lens assembly can be replaced with a glass layer having an index of refraction that is lower than both the meniscus lens and the plano-convex lens.

摘要翻译： 一种光刻投影光学系统，包括：用于产生能量束的曝光能量源; 光学元件位于光束的路径中，用于接收能量束并使光束通过其中; 折射透镜组件，其位于所述光束的所述部分的路径中，用于接收和传输所述能量束，所述折射透镜组件包括至少一个弯月透镜，平凸透镜和设置在所述弯月透镜和 平凸透镜; 位于光束部分路径中的光罩元件，所述标线片元件具有均匀的厚度并被定位成允许光束穿过厚度并通过透镜组件到达光学元件。 或者，折射透镜组件的气隙可以用折射率低于弯月透镜和平凸透镜的玻璃层代替。

公开(公告)号：US07039267B2

公开(公告)日：2006-05-02

申请号：US10766878

申请日：2004-01-30

申请人： Thomas Ducellier ,  Ian Powell ,  Stephen David Shaw

发明人： Thomas Ducellier ,  Ian Powell ,  Stephen David Shaw

IPC分类号： G02B6/35

CPC分类号： G02B6/3556 ,  G02B6/29395 ,  G02B6/32 ,  G02B6/3512 ,  G02B6/3562 ,  G02B6/359 ,  H04J14/02 ,  H04Q11/0005 ,  H04Q2011/0015 ,  H04Q2011/0024 ,  H04Q2011/0026 ,  H04Q2011/003 ,  H04Q2011/0035 ,  H04Q2011/0037 ,  H04Q2011/0043 ,  H04Q2011/0052

摘要： The invention provides an optical switch having a pair of opposed optical arrays, each optical array including a fixed mirror and a plurality of independently tiltable mirrors, at least one input port for launching a beam of light into the optical switch, said input port being disposed within a respective optical array, at least two output ports for selectively receiving a beam of light from an optical path between the at least one input port and a selected one of the at least two output ports, said at least two output ports being disposed within a respective opposed optical array, and an ATO element having optical power disposed between the pair of opposed optical arrays. The pair of opposed optical arrays is disposed in respective focal planes of the ATO element. Preferably, the ATO element has a focal length equal to a Rayleigh range of a beam of light incident thereon.