Imaging system having a folded optical axis
    2.
    发明授权
    Imaging system having a folded optical axis 有权
    具有折叠光轴的成像系统

    公开(公告)号:US08717413B2

    公开(公告)日:2014-05-06

    申请号:US12463488

    申请日:2009-05-11

    IPC分类号: H04N7/00

    摘要: An imaging system having a folded optical axis that is accomplished through the effect of a first lens group, a prism, and a second lens group wherein a second surface of the prism is a mirror wherein the folded imaging system exhibits a horizontal field of view (HFOV) greater than 160 degrees and a vertical field of view (VFOV) greater than 80 degrees. Further aspects include a conjugate ratio of the lenses to be substantially 5.47 and a ratio of the entire lens focal length to the focal length of the first lens to be substantially −0.309.

    摘要翻译: 一种具有通过第一透镜组,棱镜和第二透镜组的效果实现的折叠光轴的成像系统,其中棱镜的第二表面是反射镜,其中折叠成像系统呈现水平视野( HFOV)大于160度,垂直视野(VFOV)大于80度。 另外的方面包括透镜的共轭比基本上为5.47,并且整个透镜焦距与第一透镜的焦距的比率基本上为-0.309。

    Light source
    4.
    发明授权
    Light source 有权
    光源

    公开(公告)号:US07668214B2

    公开(公告)日:2010-02-23

    申请号:US12116834

    申请日:2008-05-07

    IPC分类号: H01S3/10

    摘要: An apparatus for coupling radiation of individual laser diode emitters into a common optical fiber is disclosed. The radiation is collimated along fast axis and combined by using crossed pairs of flat mirrors. The combined beams are collimated by a common slow axis collimating lens. The laser diode emitters are disposed on both sides of an optical axis of the slow axis collimating lens such that the optical path lengths from the emitters to the slow axis collimating lens are equal.

    摘要翻译: 公开了将各个激光二极管发射器的辐射耦合到公共光纤中的装置。 辐射沿快轴校准,并通过使用交叉对的平面镜组合。 组合的光束由普通的慢轴准直透镜准直。 激光二极管发射器设置在慢轴准直透镜的光轴的两侧,使得从发射器到慢轴准直透镜的光路长度相等。

    In vivo sensor with panoramic camera
    5.
    发明申请
    In vivo sensor with panoramic camera 有权
    具有全景相机的体内传感器

    公开(公告)号:US20080143822A1

    公开(公告)日:2008-06-19

    申请号:US11642275

    申请日:2006-12-19

    IPC分类号: H04N7/00

    摘要: The invention is directed to a system and method for vivo image capturing system. The system includes a camera having an entrance pupil, where the camera is configured to capture a panoramic image of an environment surrounding the camera, wherein the panoramic image is captured on a single image plane. The system further includes a light source for providing an illumination source for the camera and a closed housing for enclosing the camera and the light source.

    摘要翻译: 本发明涉及一种用于体内图像捕获系统的系统和方法。 该系统包括具有入射光瞳的相机,其中相机被配置为捕获围绕相机的环境的全景图像,其中在单个图像平面上捕获全景图像。 该系统还包括用于提供照相机的照明源的光源和用于封闭照相机和光源的封闭的外壳。

    Detection circuits
    6.
    发明授权
    Detection circuits 失效
    检测电路

    公开(公告)号:US06408036B1

    公开(公告)日:2002-06-18

    申请号:US09134235

    申请日:1998-08-14

    申请人: Gordon Wilson

    发明人: Gordon Wilson

    IPC分类号: H04L2706

    CPC分类号: H04L25/061

    摘要: In a detection circuit for ASK or OOK modulation, the received modulated signal is ac coupled to a dc restoration circuit and amplified. The dc restoration is carried out on signal peaks corresponding to “mark” intervals of the modulated signal. Thus data may be recovered even in the presence of high levels inband continuous interfering signals.

    摘要翻译: 在用于ASK或OOK调制的检测电路中,所接收的调制信号被交流耦合到直流恢复电路并被放大。 在对应于调制信号的“标记”间隔的信号峰上执行直流恢复。 因此,即使存在高级带内连续干扰信号,也可能恢复数据。

    Methods to compensate manufacturing variations and design imperfections in a capsule camera
    7.
    发明授权
    Methods to compensate manufacturing variations and design imperfections in a capsule camera 有权
    补偿胶囊相机中制造变化和设计缺陷的方法

    公开(公告)号:US09007478B2

    公开(公告)日:2015-04-14

    申请号:US11621486

    申请日:2007-01-09

    摘要: A method characterizes manufacturing imperfections in a camera and variations in its operating environment to allow images captured by the camera to be compensated for these defects. The method includes: (a) illuminating a field of view of the optical elements under a controlled condition; (b) exposing multiple images onto the image sensor under the controlled condition; (c) extracting from the multiple images parameter values for pixels of the image sensor; and (d) compensating images taken subsequently in the camera using the parameter values. The controlled condition includes an external light source for illumination, and the image sensor is sensitive to color components.

    摘要翻译: 一种表征相机中的缺陷和其操作环境变化的方法,以允许由相机拍摄的图像补偿这些缺陷。 该方法包括:(a)在受控条件下照射光学元件的视场; (b)在受控条件下将多个图像曝光到图像传感器上; (c)从多个图像中提取图像传感器的像素的参数值; 和(d)使用参数值补偿相机中随后拍摄的图像。 受控条件包括用于照明的外部光源,并且图像传感器对颜色成分敏感。

    In Vivo Device with Balloon Stabilizer and Valve
    8.
    发明申请
    In Vivo Device with Balloon Stabilizer and Valve 审中-公开
    体内装置气囊稳定剂和阀门

    公开(公告)号:US20080033247A1

    公开(公告)日:2008-02-07

    申请号:US11833911

    申请日:2007-08-03

    IPC分类号: A61B1/04

    摘要: An in vivo imaging system is provided with a capsule having at least one balloon configured to orient the capsule in a consistent orientation relative to an internal organ; at least one valve configured to control the quantity of gas within the at least one balloon; and an imager encased within the capsule.

    摘要翻译: 体内成像系统设置有具有至少一个气囊的胶囊,所述气囊被配置为相对于内部器官以一致的取向使胶囊定向; 至少一个阀构造成控制所述至少一个气囊内的气体量; 和封装在胶囊内的成像仪。

    Integrated circuit
    9.
    发明授权

    公开(公告)号:US06933773B2

    公开(公告)日:2005-08-23

    申请号:US10673566

    申请日:2003-09-30

    IPC分类号: H03F3/68 H03H11/54 G06G7/12

    CPC分类号: H03F3/68 H03H11/54

    摘要: An integrated circuit comprises a biasing circuit for maintaining the transconductance of a Gm cell constant. The integrated circuit comprises an on-chip constant voltage source and an on-chip constant current source. The on-chip constant current source has a connection for an external resistance, the value of the external resistance determining the current generated by the constant current source. The biasing circuit comprises means for providing a first fraction (β) of the current generated by the on-chip current source to bias the output of the Gm cell, and means for providing a second fraction (α) of the voltage generated by the on-chip voltage source to bias the input of the Gm cell. The transconductance of the Gm cell is controlled to be equal to the ratio of said fraction of the current generated by the on-chip current source to said fraction of the voltage generated by the on-chip voltage source.

    Spectral plane method and apparatus for wavelength-selective optical switching
    10.
    发明申请
    Spectral plane method and apparatus for wavelength-selective optical switching 审中-公开
    用于波长选择性光交换的光谱平面法和装置

    公开(公告)号:US20050074204A1

    公开(公告)日:2005-04-07

    申请号:US10677978

    申请日:2003-10-02

    IPC分类号: G02B6/34 G02B6/28

    摘要: We describe a variable bandwidth tunable optical spectral filtering device and associated method for selectively directing a portion of a wavelength multiplexed input signal, entering through one or more optical fibers, into one or more output signals provided to one or more optical fibers and/or electronic outputs. The optical filtering is accomplished using free-space diffractive wavelength de-multiplexing optics combined with a fixed (permanent) patterned structure located in the spectrally dispersed image plane. The structure can direct a selected spectral portion of the optical signal to one or more separate outputs, such as an optical fiber or power detector. A single active element in the optical path is used to spatially shift, or steer, the entire input spectrum at the dispersed spectral image plane, to control the portion of the input spectrum illuminating specific features on the permanent patterned structure. In one preferred embodiment, a device with a fixed selective area triangular shaped tilted reflective facet on a flat reflective surface is constructed such that the light reflected off the flat reflective surface and off the triangular reflective facet are selectively multiplexed back and directed to different output fiber ports. Inputs at different angles of incidence on the reflective structures may be deflected by the same structures to different output port fiber ports. A reconfigurable variable-bandwidth tunable optical add/drop multiplexing device is constructed using such a filtering device and an application of such an add/drop multiplexing in a optical transport network is demonstrated.

    摘要翻译: 我们描述了一种可变带宽可调谐光谱滤波装置和相关联的方法,用于选择性地将波长多路复用输入信号的一部分,通过一个或多个光纤进入到提供给一个或多个光纤和/或电子的一个或多个输出信号 输出。 光学滤波使用与位于光谱分散图像平面中的固定(永久)图案化结构组合的自由空间衍射波长解复用光学器件来实现。 该结构可以将光信号的所选光谱部分引导到一个或多个单独的输出,例如光纤或功率检测器。 光路中的单个有源元件用于在分散的光谱图像平面上空间移位或引导整个输入光谱,以控制输入光谱的部分照亮永久图案化结构上的特征。 在一个优选实施例中,在平坦反射表面上具有固定的选择性区域三角形倾斜反射小面的装置被构造成使得从平面反射表面反射的光和离开三角形反射小面的光被有选择地多路复用并导向不同的输出光纤 港口。 在反射结构上以不同入射角的输入可以被相同的结构偏转到不同的输出端口光纤端口。 使用这种滤波装置构造可重构可变带宽可调谐光分插复用装置,并且示出了在光传输网络中的这种分插复用的应用。