专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20060055935A1 Wavelength dispersive fourier transform spectrometer 有权
标题翻译：波长色散傅立叶变换光谱仪
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。

2. 发明授权

US07317535B2 Wavelength dispersive fourier transform spectrometer 有权
标题翻译：波长色散傅立叶变换光谱仪
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。

3. 发明授权

US4826299A Linear deiverging lens 失效
标题翻译：线状透镜
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。

4. 发明授权

US08491120B2 Retinal fundus surveillance method and apparatus 有权
标题翻译：视网膜眼底监视方法及装置
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。

5. 发明申请

US20110043756A1 RETINAL FUNDUS SURVEILLANCE METHOD AND APPARATUS 有权
标题翻译：后期基金监督方法和装置
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。

6. 发明授权

US5631778A Panoramic fish-eye imaging system 失效
标题翻译：全景鱼眼成像系统
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。

7. 发明授权

US07039267B2 Optical switch 失效
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.

8. 发明授权

US6002483A Non-contact interference optical system for measuring the length of a moving surface with a large N.A. collector optical system 失效
标题翻译：非接触式干涉光学系统，用于用大的N.A.集光器系统测量移动表面的长度
公开(公告)号：US6002483A
公开(公告)日：1999-12-14
申请号：US39473
申请日：1998-03-16
申请人： Ian Powell
发明人： Ian Powell
IPC分类号： G01D5/347 , G01B9/02
CPC分类号： G01D5/34715 , G01D5/347
摘要： An optical device for measuring the length of a surface that has an undulating specular appearance. The device includes a beam delivery unit that superimposes a pair of laser beams onto a moving surface for producing an interference pattern having straight-line fringes on it and a light collector assembly that captures radiation reflected from different parts along the surface and directs the radiation to a detector. One particular beam delivery unit creates two interfering beams by using refracting prisms to intercept and redirect half of an elliptically shaped laser beam leaving the other half as the second beam. The collector assembly can have a variety of configurations and acts like a bucket collecting as much of the reflected radiation as possible. In order to accomplish this, the numerical aperture in the object space of the collector assembly is made greater than 0.5. In one embodiment, the collector assembly includes a plano-convex lens to collect narrow to moderate angle radiation, and the combination of a concave annular reflector and a partially reflective convex surface of the plano-convex lens to collect the moderate to wide angle radiation reflected from the moving surface to be measured. In other embodiments, Fresnel, aspheric or high refractive index lenses are used to collect the radiation reflected from the surface.
摘要翻译：一种用于测量具有波状镜面外观的表面的长度的光学装置。该装置包括光束传递单元，其将一对激光束叠加到移动表面上，用于产生其上具有直线条纹的干涉图案;以及光收集器组件，其捕获沿着表面从不同部分反射的辐射并将辐射引导到检测器一个特定的光束传送单元通过使用折射棱镜来截取和重定向离开另一半的椭圆形激光束的一半作为第二光束来产生两个干涉光束。收集器组件可以具有各种构造，并且作用如尽可能多地收集反射辐射。为了实现这一点，集电器组件的物体空间中的数值孔径大于0.5。在一个实施例中，集电器组件包括用于收集窄到中等角度辐射的平凸透镜，以及平凸透镜的凹环形反射器和部分反射凸表面的组合以收集反射的中等到广角的辐射从要测量的移动表面。在其他实施例中，使用菲涅尔，非球面或高折射率透镜来收集从表面反射的辐射。

9. 发明授权

US5629808A D-shape laser beam projector 失效
标题翻译： D型激光束投影机
公开(公告)号：US5629808A
公开(公告)日：1997-05-13
申请号：US573124
申请日：1995-12-15
申请人： Ian Powell
发明人： Ian Powell
IPC分类号： G02B13/18 , G02B3/02
CPC分类号： G02B5/001 , G02B19/0052 , G02B27/0927 , G02B27/095
摘要： An optical lens is useful as a D-shape laser beam projector. The lens consists of a known linear diverging element enabling the expansion of a laser beam into an uniform line, and a matching section of an axicon, either a symmetrical half-axicon or a non-symmetrical one, cut in a plane passing through, or nearly through, its apex. The two components, joined together in a plane of cutting of the axicon section, are positioned in a laser beam such that the beam is incident on both apices of the linear diverging element and the axicon section.
摘要翻译：光学透镜可用作D形激光束投影仪。该透镜由已知的线性发散元件组成，其能够将激光束扩展成均匀的线，以及在通过的平面中切割的对角半轴或非对称的三角镜的匹配部分，或几乎通过它的顶点。在旋转轴切割部分的平面中连接在一起的两个部件被定位在激光束中，使得光束入射在线性发散元件的顶点和旋转轴部分上。

10. 发明授权

US5499066A Optical instrument with a continuously adjustable zoom 失效
标题翻译：光学仪器具有连续可调的变焦
公开(公告)号：US5499066A
公开(公告)日：1996-03-12
申请号：US975929
申请日：1993-04-21
申请人： John W. Farmer , George Smith , Malcolm Gin , John F. H. Brook , Daryl R. White , Brian A. See , Ian Powell
发明人： John W. Farmer , George Smith , Malcolm Gin , John F. H. Brook , Daryl R. White , Brian A. See , Ian Powell
IPC分类号： A61B3/12 , G02B15/00
CPC分类号： A61B3/1208
摘要： An optical instrument for indirectly observing an object includes a first lens system for producing a first image of the object, and an adjustable second lens system for producing a second image of the object. The second lens system is continuously adjustable between a first position wherein the second image has maximum magnification and/or a minimum area of view, and a second position wherein the second image is of a minimum magnification and/or a maximum area of view. In one aspect of the invention, the second lens system is a zoom lens system having two substantially fixed conjugate planes. In another aspect of the invention, the instrument defines a folded optical path through the lens systems which includes a generally U-shaped portion so as, in use, to reduce the separation of the observer and the observed object.
摘要翻译： PCT No.PCT / AU91 / 00387 Sec。 371日期：1993年4月21日 102（e）日期1993年4月21日PCT 1991年8月26日PCT公布。出版物WO92 / 03085 日期：1992年3月5日。用于间接观察物体的光学仪器包括用于产生物体的第一图像的第一透镜系统和用于产生物体的第二图像的可调节的第二透镜系统。第二透镜系统在其中第二图像具有最大放大倍数和/或最小视区的第一位置和第二位置之间连续可调，其中第二图像具有最小放大倍数和/或最大视野。在本发明的一个方面，第二透镜系统是具有两个基本上固定的共轭平面的变焦透镜系统。在本发明的另一方面，仪器限定通过透镜系统的折叠光路，其包括大致U形的部分，以便在使用中减小观察者和被观察物体的分离。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式