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公开(公告)号：US20130089240A1
公开(公告)日：2013-04-11
申请号：US13453151
申请日：2012-04-23
CPC分类号： G06K9/00604
摘要： A portable, hand held iris imaging system captures iris images that may be used in biometric identification. The system is constructed using two separate but coupled subsystems. A first subsystem augments the underlying functionality of the second subsystem. The first subsystem uses an iris camera to capture iris images. A tunable optical element positioned between the subject and the iris camera focuses light reflected from the subject's eye onto the iris camera. A controller coordinates the capture of the iris image with the second subsystem. The second subsystem captures face images of the subject, which are provided to a display through a computer. The user interface is overlaid over the face images to provide visual feedback regarding how the system can be properly repositioned to capture iris images. The system has a portable form factor so that it may be easily operated.
摘要翻译： 便携式手持虹膜成像系统捕获可用于生物识别的虹膜图像。 该系统使用两个单独但耦合的子系统构建。 第一个子系统增强了第二个子系统的基础功能。 第一个子系统使用虹膜相机捕获虹膜图像。 定位在被摄体和虹膜相机之间的可调光学元件将从被摄体的眼睛反射的光聚焦到光圈相机上。 控制器与第二个子系统协调捕获虹膜图像。 第二个子系统通过计算机捕获被提供给显示器的被摄体的脸部图像。 用户界面覆盖在脸部图像上，以提供有关如何正确重新定位系统以捕获虹膜图像的视觉反馈。 该系统具有便携式外形尺寸，使其可以容易地操作。
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2.发明授权Free-space optical transceiver using multimode fiber to couple single mode input optical signal 有权使用多模光纤耦合单模输入光信号的自由空间光收发器公开(公告)号：US08260146B2
公开(公告)日：2012-09-04
申请号：US12684059
申请日：2010-01-07
申请人： J. Elon Graves
发明人： J. Elon Graves
IPC分类号： H04B10/00
CPC分类号： H04B10/1123
摘要： An optical circulator couples optical fibers of dissimilar modes. In one embodiment, an optical circulator couples a single mode first fiber to a multimode second fiber, which is used as an optical input to a telescope. The multimode fiber does not significantly degrade the mode structure of the light form the single mode fiber. In the reverse direction, light received by the telescope is coupled into the multimode second fiber, which the circulator couples to a multimode third fiber.
摘要翻译： 光环行器耦合不同模式的光纤。 在一个实施例中，光循环器将单模第一光纤耦合到多模第二光纤，多模第二光纤用作望远镜的光输入。 多模光纤不会显着降低单模光纤的模式结构。 在相反方向上，由望远镜接收的光耦合到多模第二光纤中，循环器耦合到多模第三光纤。
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公开(公告)号：US07428320B2
公开(公告)日：2008-09-23
申请号：US11297578
申请日：2005-12-07
IPC分类号： G06K9/00
CPC分类号： A61B3/1216 , A61B5/117 , A61B5/1171 , G06K9/00604
摘要： A rapid iris acquisition, tracking, and imaging system can be used at longer standoff distances and over larger capture volumes, without the active cooperation of subjects. The captured iris images can be used for biometric identification. Light illuminates the subjects' eyes. Eye reflection from the eyes is used to steer a high resolution camera to the eyes in order to capture images of the irises.
摘要翻译： 快速虹膜采集，跟踪和成像系统可以在更长的距离距离和更大的捕获体积下使用，而不需要主体的积极配合。 捕获的虹膜图像可用于生物识别。 光照亮受试者的眼睛。 眼睛的眼睛反射用于将高分辨率摄像机引导到眼睛以捕获虹膜的图像。
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公开(公告)号：US07418115B2
公开(公告)日：2008-08-26
申请号：US11765401
申请日：2007-06-19
IPC分类号： G06K9/00
CPC分类号： G06K9/00604 , A61B3/1216 , A61B5/117
摘要： A rapid iris acquisition, tracking, and imaging system can be used at longer standoff distances and over larger capture volumes, without the active cooperation of subjects. The captured iris images can be used for biometric identification. Light illuminates the subjects' eyes. Reflections from the eyes are used to steer a high resolution camera to the eyes in order to capture images of the irises.
摘要翻译： 快速虹膜采集，跟踪和成像系统可以在更长的距离距离和更大的捕获体积下使用，而不需要主体的积极配合。 捕获的虹膜图像可用于生物识别。 光照亮受试者的眼睛。 眼睛的反射用于将高分辨率摄像机引导到眼睛以捕获虹膜的图像。
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公开(公告)号：US07102114B2
公开(公告)日：2006-09-05
申请号：US10794973
申请日：2004-03-04
CPC分类号： G01J9/02 , G01J2009/002 , G02B26/0825
摘要： In an optics system, a flexible mirror is deformed with an electromagnetic force. In one embodiment, an electrical current is directed through the mirror, or a conductor attached to the mirror, in the presence of a magnetic field. In one application in an adaptive optics system, the membrane mirror is used in a wavefront sensor. Deformed to oscillate between convex and concave positions, the mirror is used to alternately defocus a received light signal for determining aberrations in the light signal. By detecting aberrations in the light signal, the adaptive optics system can correct for those aberrations.
摘要翻译： 在光学系统中，柔性反射镜用电磁力变形。 在一个实施例中，在存在磁场的情况下，电流被引导通过反射镜或连接到反射镜的导体。 在自适应光学系统中的一个应用中，膜反射镜用于波前传感器。 变形为在凸和凹位置之间振荡，反射镜用于交替地聚焦接收的光信号以确定光信号中的像差。 通过检测光信号中的像差，自适应光学系统可以校正这些像差。
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公开(公告)号：US07019888B1
公开(公告)日：2006-03-28
申请号：US10688087
申请日：2003-10-16
IPC分类号： G02B26/00
CPC分类号： G02B7/183 , G02B7/1827 , G02B26/0825
摘要： A deformable mirror for an adaptive optics system includes a number of electrodes for causing deformation of the mirror. An insulating layer and a layer of conductive traces over the electrodes allow the connection points for the electrodes to be moved to a perimeter region of the mirror, which facilitates connecting the mirror to a circuit board or other equipment. In one implementation, the deformable mirror is coupled to a circuit board by a strip connector (e.g., a zebra strip connector), which is maintained in a compressed state by a retaining plate.
摘要翻译： 用于自适应光学系统的可变形反射镜包括用于引起反射镜变形的多个电极。 电极上的绝缘层和导电迹线层允许电极的连接点移动到反射镜的周边区域，这有助于将反射镜连接到电路板或其它设备。 在一个实施方式中，可变形反射镜通过带状连接器（例如，斑马带连接器）耦合到电路板，该连接器由保持板保持在压缩状态。
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公开(公告)号：US06464364B2
公开(公告)日：2002-10-15
申请号：US09769988
申请日：2001-01-25
IPC分类号： G02B2600
CPC分类号： G02F1/29 , G02B26/06 , G02B26/0825 , G02F1/0128
摘要： A deformable curvature mirror capable of controlled deformation by applying electrical voltages to electrode segments on the back of the mirror. Two plates of an electro-restrictive material, such as PZT or PMN, are jointed together with at least one conductive layer sandwiched therebetween. One plate has an outer conductive layer and a mirrored surface on the outer conductive layer. The conductive layers are electrically grounded. The other plate has a pattern of a plurality of electrode segments on the outer surface with each electrode segment having a separate electrical terminal for applying a variable electrical voltage thereto for separately transmitting a variable current through each electrode segment and through at least the other plate for causing variable expansion of the plate and thereby selectively deforming that plate and, in turn, the deformable curvature mirror.
摘要翻译： 一种可变形曲率镜，能够通过向反射镜背面的电极部分施加电压来控制变形。 诸如PZT或PMN的电极限制材料的两个板与夹在其间的至少一个导电层接合在一起。 一个板在外部导电层上具有外部导电层和镜面。 导电层电接地。 另一个板具有在外表面上的多个电极段的图案，其中每个电极段具有用于施加可变电压的单独的电端子，用于单独地传输可变电流通过每个电极段并且至少通过另一个板，用于 导致板的可变膨胀，并因此选择性地使该板变形，并且进而变形曲率镜。
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8.发明授权Scale-invariant, resolution-invariant iris imaging using reflection from the eye 有权使用来自眼睛的反射的尺度不变，分辨率不变的虹膜成像公开(公告)号：US08243133B1
公开(公告)日：2012-08-14
申请号：US12493899
申请日：2009-06-29
申请人： Malcolm J. Northcott , J. Elon Graves , Dan Potter
发明人： Malcolm J. Northcott , J. Elon Graves , Dan Potter
CPC分类号： G06K9/00604
摘要： An optical system includes an active focus element that maintains an image in focus over a range of object distances. The active focus element and aperture stop are positioned such that the image scale and the image spatial resolution are also invariant (or at least have a reduced sensitivity) with respect to object distance.
摘要翻译： 光学系统包括主动聚焦元件，其在对象距离的范围内保持图像焦点。 定位有源聚焦元件和孔径光阑使得图像尺度和图像空间分辨率相对于物体距离也是不变的（或至少具有降低的灵敏度）。
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9.发明授权Data port alignment of free space optical communications terminal with adaptive optics 有权自由空间光通信终端与自适应光学器件的数据端口对齐公开(公告)号：US07616897B2
公开(公告)日：2009-11-10
申请号：US11387500
申请日：2006-03-22
申请人： J. Elon Graves
发明人： J. Elon Graves
IPC分类号： H04B10/00
CPC分类号： H04B10/1121
摘要： An approach for aligning an adaptive optics module and a data port in a free space optical communications terminal. A wavefront sensor in the adaptive optics system is aligned to a reference port. The data port is also aligned to the reference port. In this way, alignment of the wavefront sensor and the data port is achieved.
摘要翻译： 用于在自由空间光通信终端中对准自适应光学模块和数据端口的方法。 自适应光学系统中的波前传感器与参考端口对齐。 数据端口也与参考端口对齐。 以这种方式，实现了波前传感器和数据端口的对准。
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公开(公告)号：US06721510B2
公开(公告)日：2004-04-13
申请号：US09892913
申请日：2001-06-26
IPC分类号： H04B1000
CPC分类号： H04B10/1125
摘要： A free-space optical data transmission system, comprised of first and second transceivers spaced a substantial distance from each other and having telescopes aimed at each other. Each transceiver has a light transmitter for transmitting data-encoded light from its telescope to the other telescope, and a light receiver for receiving the data-encoded light from the other telescope. Each transceiver has a wavefront sensor for determining the curvature of the wavefront of light transmitted between the telescopes, which light wavefront may be distorted by atmospheric aberrations, a deformable curvature mirror operably connected to the wavefront sensor and positioned in the path of the data-encoded light for modifying the wavefront curvature of the data-encoded light in response to the wavefront curvature determined by the wavefront sensor. Preferably, each transceiver has an arrangement for distinguishing/separating the transmitted and received light waves for bi-directional data transmission.
摘要翻译： 一种自由空间光数据传输系统，包括彼此间隔相当距离且具有彼此瞄准的望远镜的第一和第二收发器。 每个收发器具有用于将数据编码的光从其望远镜传输到另一望远镜的光发射器，以及用于接收来自另一望远镜的数据编码光的光接收器。 每个收发器具有用于确定在望远镜之间传输的光的波前的曲率的波前传感器，所述光波阵面可能由大气像差扭曲，可变形曲率镜可操作地连接到波前传感器并且位于数据编码的路径中 用于响应于由波前传感器确定的波前曲率来修改数据编码光的波前曲率的光。 优选地，每个收发器具有用于区分/分离发射和接收的光波用于双向数据传输的装置。
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