公开(公告)号：US11249301B2

公开(公告)日：2022-02-15

申请号：US16658465

申请日：2019-10-21

申请人： BAE SYSTEMS Information and Electronic Systems Integration Inc.

发明人： George F. Dippel

IPC分类号： G02B26/02 ,  G21K1/04 ,  G01J5/20 ,  H01L23/552 ,  G02B26/04

摘要： A system for a synchronous high speed shutter for sensor protection comprising a shutter disk having a rotational axis; wherein the rotational axis of the shutter disk is perpendicular to an optical axis of the sensor. A plurality of paired reflecting elements on the shutter disk, perpendicular to a surface of the shutter disk, wherein a polished surface of each of the plurality of paired reflecting elements is figured to match an angle (f #) of an incoming ray bundle; whereby incoming radiation is directed back out collecting optics; wherein the sensor comprises a single photon Geiger mode detector, and whereby the sensor is protected from damage by over-current due to a flood of photons.

公开(公告)号：US20210116699A1

公开(公告)日：2021-04-22

申请号：US16658465

申请日：2019-10-21

申请人： BAE SYSTEMS Information and Electronic Systems Integration Inc.

发明人： George F. Dippel

IPC分类号： G02B26/02

摘要： A system for a synchronous high speed shutter for sensor protection comprising a shutter disk having a rotational axis; wherein the rotational axis of the shutter disk is perpendicular to an optical axis of the sensor. A plurality of paired reflecting elements on the shutter disk, perpendicular to a surface of the shutter disk, wherein a polished surface of each of the plurality of paired reflecting elements is figured to match an angle (f #) of an incoming ray bundle; whereby incoming radiation is directed back out collecting optics; wherein the sensor comprises a single photon Geiger mode detector, and whereby the sensor is protected from damage by over-current due to a flood of photons.