Wide field optical system
    1.
    发明授权
    Wide field optical system 失效
    宽视场光学系统

    公开(公告)号:US4883348A

    公开(公告)日:1989-11-28

    申请号:US204902

    申请日:1988-06-10

    摘要: A telescope with a spherical primary mirror and a movable secondary optical element which is positioned at various locations near the focal plane of the primary mirror and directs a portion of the focused radiation to a coude optics device at the center of curvature of the primary mirror. The coude optics device reflects the focused radiation to a detector. In a preferred embodiment of this invention a field of several degrees can be scanned very rapidly while viewing much smaller object fields.

    摘要翻译: 具有球形初级反射镜和可移动次级光学元件的望远镜,其位于主反射镜的焦平面附近的各个位置,并将聚焦辐射的一部分引导到主镜的曲率中心处的光学设备。 粗糙光学器件将聚焦的辐射反射到检测器。 在本发明的优选实施例中,可以非常快速地扫描几度的场,同时观察更小的对象场。

    Wide field multi-mode telescope
    2.
    发明授权
    Wide field multi-mode telescope 失效
    广场多模望远镜

    公开(公告)号:US5107369A

    公开(公告)日:1992-04-21

    申请号:US619861

    申请日:1990-11-28

    摘要: A telescope with a spherical primary mirror and movable lightweight secondary assembly which includes an optical, imaging component and at least one location component both of which components are attached to a pivot arm. The location component can be a microwave, radio frequency or acoustic location component. The optical component of this secondary assembly reflects a portion of focused light radiation from the primary mirror back to the primary mirror and thence through a hole in the secondary mirror to a coude' optics device at the center of curvature of the primary mirror. The coude' optics device in turn reflects the focused light radiation to an imaging detector housed in the outer structure of the telescope. A preferred embodiment of the present invention combines all three of these location systems with the optical imaging component.

    摘要翻译: 具有球形主镜和可移动的轻型二次组件的望远镜,其包括光学成像部件和至少一个位置部件,两个部件都附接到枢转臂。 位置组件可以是微波,射频或声学位置组件。 该次级组件的光学部件将来自主镜的聚焦光辐射的一部分反射回主镜,并且然后通过次镜中的孔反射到主镜的曲率中心处的“镜”光学装置。 科氏光学器件又将聚焦的光辐射反射到容纳在望远镜的外部结构中的成像检测器。 本发明的优选实施例将这三个位置系统与光学成像部件组合在一起。

    Method and apparatus for maintaining optical alignment for free-space optical communication
    3.
    发明授权
    Method and apparatus for maintaining optical alignment for free-space optical communication 有权
    用于维持自由空间光通信的光学对准的方法和装置

    公开(公告)号:US07120363B2

    公开(公告)日:2006-10-10

    申请号:US10326852

    申请日:2002-12-20

    IPC分类号: H04B10/00

    CPC分类号: H04B10/1127

    摘要: The present invention provides a method and apparatus for free-space optical communication. The method comprises the steps of receiving a receive optical beam through a narrow field of view, determining a receive power level, shifting an alignment, maximizing the receive power, and transmitting a transmit optical beam along the alignment, wherein the narrow field of view is less than a divergence of the transmit optical beam. The narrow field of view can be a narrow region of a multi-region field of view. The apparatus comprises an optical beam transmitter configured to generate a narrow diverging transmit beam, a narrow field of view optical receiver, wherein the field of view is less than the divergence of the transmit beam, and a controller configured to determine a power level of a receive beam and to determine adjustments to a direction of transmission maximizing receive power.

    摘要翻译: 本发明提供一种自由空间光通信的方法和装置。 该方法包括以下步骤:通过窄视场接收接收光束,确定接收功率电平,移位对准,最大化接收功率,以及沿对准发送发射光束,其中窄视场为 小于发射光束的发散度。 窄视场可以是多区域视野的窄区域。 该装置包括被配置为产生窄发散发射波束的光束发射机,窄视场光接收机,其中视野小于发射波束的发散度,以及控制器,被配置为确定发射波束的功率电平 接收波束并确定对传输方向的调整,最大化接收功率。