Method for manufacturing optical components with periodic or
quasi-periodic optical properties
    1.
    发明授权
    Method for manufacturing optical components with periodic or quasi-periodic optical properties 失效
    具有周期性或准周期光学性质的光学部件的制造方法

    公开(公告)号:US5696628A

    公开(公告)日:1997-12-09

    申请号:US335720

    申请日:1995-06-01

    Abstract: A method for manufacturing optical components having a periodic or quasi-periodic structure such as diffraction gratings, volume holograms or distributed feedback mirrors in optical fibers. An optical medium is subjected to acoustic waves which induce periodic or quasi-periodic changes in the optical properties of the medium, the changes being at least partially retained on removal of the waves. The changes may result from stress associated with the antinodes of an acoustic standing wave, alteratively the stress distribution associated with a travelling acoustic wave in an electro-viscous liquid may be semi-permanently retained by the solidification of the material resulting from the application of an electric field.

    Abstract translation: PCT No.PCT / GB94 / 00447 Sec。 371日期:1995年6月1日 102(e)1995年6月1日PCT 1994年3月8日PCT PCT。 出版物WO94 / 20868 日期1994年9月15日一种用于制造具有周期性或准周期性结构的光学部件的方法,例如光纤中的衍射光栅,体积全息图或分布式反馈镜。 光介质经受声波,其引起介质的光学性质的周期性或准周期性变化,所述变化在去除波时至少部分保持。 这种变化可能是由与声波驻波的波腹相关的应力引起的,可替代地,与电粘性液体中的行进声波相关联的应力分布可以通过施加材料而产生的材料的固化半永久地保持 电场。

    Synthetic Kerbs and Method of Installation
    5.
    发明申请
    Synthetic Kerbs and Method of Installation 审中-公开
    合成路缘及安装方法

    公开(公告)号:US20090208286A1

    公开(公告)日:2009-08-20

    申请号:US10593126

    申请日:2005-03-21

    Applicant: Philip Sutton

    Inventor: Philip Sutton

    CPC classification number: E01C11/222 E01C11/223

    Abstract: A plastics or rubber kerbstone (10) has a body which defines a flange for assisting retention of the kerbstone, in use. A kerb race reinforcement structure (80) is also disclosed. The kerb race reinforcement structure has a preformed body which defines a base and a kerb carrying surface displaced from the base so as to define a cavity between the base and the carrying surface.

    Abstract translation: 塑料或橡胶路轨(10)具有在使用中限定用于辅助保留路缘石的凸缘的主体。 还公开了一种路缘加强结构(80)。 路缘加强结构具有预成形体,其限定了基部和从基部移位的路缘承载表面,以便在基部和承载表面之间限定空腔。

    Optical multiplexer
    6.
    发明授权
    Optical multiplexer 失效
    光复用器

    公开(公告)号:US5363221A

    公开(公告)日:1994-11-08

    申请号:US937860

    申请日:1992-10-16

    CPC classification number: H04B10/11 H04J14/02

    Abstract: Light from a laser (10) is divided by a beam splitter (12) to provide signal (15) and reference (14) channels. The signal channel light is expanded (11) to illuminate an acousto-optic (AO) device (13). This leads to a spatial distribution of Doppler shifted frequencies. This spatial distribution then illuminates a spatial light modulator (SLM) (19) such that a number of parallel and discrete optical channels (112) emerge. In a local area network (LAN) the optical signal channels are coupled into a single mode optical fibre (22) and then heterodont to the reference laser light from a further optical fibre (23) in an optical coupler (25). In a receiver the modulated light is detected (32) and the detected signal connected to the transducer of an AO device (35). The AO device (35) is illuminated by a receiver laser light (36) and the emerging modulated light is incident on a focal plane detector array (39) where each detector (310) then receives light corresponding to each of the transmitted channels (311). A secure free space communications system is possible by separate transmission of a delayed (43) unmodulated reference signal. The receiver is then arranged to include an identical delay (55) in the signal channels before coupling together the signal and reference channels (56) for modulating the AO cell (35). By this means the transmission delay lines (43) and the reference delay lines (55) must have delays which are equal within the coherence length of the source laser.

    Abstract translation: PCT No.PCT / GB91 / 00382 Sec。 371日期:1992年10月16日 102(e)日期1992年10月16日PCT 1991年3月11日PCT公布。 WO91 / 14321 PCT出版物 日期:1991年9月19日。来自激光(10)的光由光束分离器(12)分开,以提供信号(15)和参考(14)通道。 信号通道光被扩展(11)以照亮声光(AO)装置(13)。 这导致多普勒频移的空间分布。 该空间分布然后照亮空间光调制器(SLM)(19),使得出现多个平行和离散的光通道(112)。 在局域网(LAN)中,光信号通道耦合到单模光纤(22)中,然后与来自光耦合器(25)中的另一光纤(23)的参考激光异相。 在接收机中,检测调制的光(32),并且检测到的信号连接到AO设备(35)的换能器。 AO器件(35)被接收器激光(36)照射,并且出现的调制光入射到焦平面检测器阵列(39)上,其中每个检测器(310)然后接收与每个发送的通道(311)相对应的光 )。 可以通过单独传输延迟(43)未调制的参考信号来实现安全的自由空间通信系统。 然后,接收器被布置为在将信号和参考通道(56)耦合在一起以用于调制AO单元(35)之前在信号通道中包括相同的延迟(55)。 通过这种方式,传输延迟线(43)和参考延迟线(55)必须具有在源激光器的相干长度内相等的延迟。

    Spectral filter
    7.
    发明授权

    公开(公告)号:US09766128B1

    公开(公告)日:2017-09-19

    申请号:US07220697

    申请日:1988-07-06

    Abstract: A filter for removing coherent radiation from a source in a field of view, substantially independent of the size of the source, comprises a first reticle 22 located in the path of received light 21, a first lens 23 producing an optical transform of the first reticle 22 at a second reticle 24 located in the image plane of the first lens 23, a second lens 25 producing an optical transform of the second reticle 24 and a third reticle 26 located in the image plane of the second lens 25. The arrangement is such that the spatial transmittance of the third reticle 26 is selected to block at least part of the diffracted image of the first reticle 22 produced in the image plane of the second lens 25 and characteristic of the coherent radiation. Preferably the optical transforms are Fourier Transforms. A monochromatic coherent source in the field of view produces a pattern of diffracted energy in the image plane of the second lens which is independent of the size of the source. Thus, by providing a suitable reticle 26 in the image plane of the second lens light from a coherent source in the field of view can be blocked while polychromatic light is transmitted. The first and second reticles may be periodic picket-fence reticles or different spatial frequencies may be used for the first and third reticles so as to vary the stop-band characteristics of the filter.

    Electro-optical detection system
    8.
    发明授权
    Electro-optical detection system 失效
    电光检测系统

    公开(公告)号:US5880771A

    公开(公告)日:1999-03-09

    申请号:US364685

    申请日:1989-05-09

    Applicant: Philip Sutton

    Inventor: Philip Sutton

    CPC classification number: G01V8/10

    Abstract: An electro-optical detection system for detecting objects embedded in a partially transmitting medium. The system includes a receiver for receiving electromagnetic radiation and a device for separating the received radiation into two separate spectral channels. A detector in each of the spectral channels for providing a signal indicative of the received radiation in each spectral channel. A signal processor, responsive to the outputs of the detectors, having a signal channel where transmission of light of the signal channel wavelength in the medium is high and having a reference channel where attenuation of light of the reference channel wavelength in the medium is high. The signal processor ensures that the reflected light at both signal and reference wavelengths are of similar intensity and geometric distribution. A subtractor provides a difference output in which the signal and reference channels are subtracted, removing the effect of reflected light.

    Abstract translation: 一种用于检测嵌入在部分传送介质中的物体的电光检测系统。 该系统包括用于接收电磁辐射的接收器和用于将接收到的辐射分离成两个单独光谱通道的装置。 每个频谱信道中的检测器,用于提供指示每个频谱信道中接收到的辐射的信号。 响应于检测器的输出的信号处理器具有信号通道,其中介质中的信号通道波长的光的透射高,并且具有介质中基准通道波长的光的衰减高的参考通道。 信号处理器确保信号和参考波长处的反射光具有相似的强度和几何分布。 减法器提供差分输出,其中减去信号和参考通道,消除反射光的影响。

    Radiation interference devices
    9.
    发明授权
    Radiation interference devices 失效
    辐射干扰装置

    公开(公告)号:US4722604A

    公开(公告)日:1988-02-02

    申请号:US461203

    申请日:1983-01-20

    CPC classification number: G01J9/02 G01J2009/0211 G01J3/45

    Abstract: An interference device for discriminating between radiation sources of differing coherence length comprises means to divide received radiation from a source into two components. A path difference, defining a coherence length cut-off, is introduced into the path of one component and the components are brought together for interference. The recombined light passes through a reticle with alternate opaque and tranparent bars and an optical band-pass filter to a detector. Interference fringes present in the plane of the reticle are swept across the reticle by the action of the collection optical system of the device which includes a scanning rotating mirror. Two similar devices can be arranged for band-pass coherence length filtering and when used in conjunction with a light soruce whose coherence is modulated the device can be used for signalling.

    Abstract translation: 用于区分不同相干长度的辐射源的干扰装置包括将来自源的接收辐射分成两部分的装置。 定义相干长度截止的路径差被引入到一个组件的路径中,并且组件被聚集在一起用于干扰。 重新组合的光通过具有交替的不透明透明棒和光学带通滤光器的掩模版到检测器。 通过包括扫描旋转镜的装置的收集光学系统的作用,存在于掩模版的平面中的干涉条纹扫过光罩。 可以安排两个类似的装置用于带通相干长度滤波,并且当与光耦合器一起使用时,其相干性被调制,该装置可以用于信令。

    Curb
    10.
    外观设计
    Curb 有权
    抑制

    公开(公告)号:USD549847S1

    公开(公告)日:2007-08-28

    申请号:US29248037

    申请日:2006-07-26

    Applicant: Philip Sutton

    Designer: Philip Sutton

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