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    • 1. 发明申请
    • OFF-AXIS REFLECTIVE TRANSMIT TELESCOPE FOR A DIRECTED INFRARED COUNTERMEASURES (DIRCM) SYSTEM
    • 用于指导性红外对策(DIRCM)系统的偏转反射传输电话
    • WO2011046644A1
    • 2011-04-21
    • PCT/US2010/040225
    • 2010-06-28
    • RAYTHEON COMPANYSCHAUB, Michael, P.BRUNTON, Daniel, W.HICKS, Jim, R.HANAUSKA, Gregory, P.RONCONE, Ronald, L.JUERGENS, Richard, C.
    • SCHAUB, Michael, P.BRUNTON, Daniel, W.HICKS, Jim, R.HANAUSKA, Gregory, P.RONCONE, Ronald, L.JUERGENS, Richard, C.
    • G01S7/495F41G3/14F41H11/02
    • G01S7/495F41G7/224F41H11/02F41H13/0056F41H13/0062
    • An off-axis reflective transmit telescope for a DIRCM system is mounted on the gimbal along a transmit-axis offset laterally from the optical axis of the receive telescope but nominally aligned with the line-of-sight of the receive telescope to transmit a laser beam. The telescope comprises an optical port optically coupled to a laser to receive and direct the laser beam away from the dome and a reflective optical assembly that reflects the laser beam through the dome. The reflective optical assembly comprises an off-axis mirror segment and a second optical element that together precompensate the laser beam for dome aberrations induced by the lateral offset of the transmit telescope's transmit axis from the optical axis. The off-axis mirror segment comprises a segment of a parent mirror having an aspheric curvature (e.g. parabolic, elliptical or higher-order asphere) about an axis of symmetry. The segment is offset so that it is not centered on the axis of symmetry of the parent mirror. The use of the off-axis mirror segment allows the optical port and any folding mirror to be positioned so that they do not obscure the reflected laser beam. The second optical element may be a segment of a dome corrector parent lens, a prism or a refractive lens formed on the front surface of the off-axis mirror segment.
    • 用于DIRCM系统的离轴反射式透射望远镜沿着从接收望远镜的光轴横向偏移的透射轴安装在万向节上,但是与接收望远镜的视线对准,以传输激光束 。 望远镜包括光学端口,其光学耦合到激光器以将激光束接收并引导离开圆顶,以及反射光学组件,其反射激光束通过圆顶。 反射光学组件包括离轴镜部分和第二光学元件,其一起预先补偿激光束,用于由透射望远镜的透射轴线从光轴的横向偏移引起的圆顶像差。 离轴镜片段包括围绕对称轴具有非球面曲率(例如抛物线形,椭圆形或高阶非球面)的父镜的一段。 该段被偏移,使得它不以母镜的对称轴为中心。 使用离轴镜分段允许光学端口和任何折叠反射镜被定位,使得它们不会使反射的激光束模糊。 第二光学元件可以是形成在离轴镜部分的前表面上的圆顶校正器母体透镜,棱镜或折射透镜的部分。