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1.发明授权公开(公告)号：US11936991B2
公开(公告)日：2024-03-19
申请号：US17397644
申请日：2021-08-09
Applicant: Raytheon Company
Inventor： Andrew M. Wilds , Craig O. Shott , Thomas Sanderson
CPC classification number: H04N23/75 , G02B26/10 , H04N23/55 , G02B26/0816 , G02B26/105 , G02B26/12
Abstract: An EO/IR optical imaging system comprises collection optics to collect light from a scene into a collimated or near-collimated space. An imaging detector is positioned at the image plane and configured to integrate incident light (radiant flux or photons) over an image frame and readout a sequence of pixelated images at a frame rate, said detector exhibiting a saturation threshold. To prevent saturation of the imaging detector, a MEMS MMA is positioned in the collimated or near-collimated space. A secondary detector (via a pick-off) samples light from the collimated or near-collimated space multiple times per image frame. A controller responsive to the sampled light commands a percentage of the mirrors to re-direct light incident on those mirrors to a light dump and commands the remaining mirrors to re-direct light incident on those mirrors to the imaging detector. Together the mirrors adjust a fraction of light reaching the imaging detector such that the integrated incident light for a given image frame is less than the saturation threshold.
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公开(公告)号：US12044507B2
公开(公告)日：2024-07-23
申请号：US17405260
申请日：2021-08-18
Applicant: Raytheon Company
Inventor： Thomas Sanderson
CPC classification number: F41G7/2293 , F41G7/2253 , G02B17/061 , G02B17/0684
Abstract: An optics system includes a convex catching mirror located within respect to the concave primary mirror to form an optical path for a field of view. A conical volume is formed with respect to the concave primary mirror and the convex catching mirror, the optical path not obstructed by the conical volume. A component within the conical volume.
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3.发明申请公开(公告)号：US20230043382A1
公开(公告)日：2023-02-09
申请号：US17397644
申请日：2021-08-09
Applicant: Raytheon Company
Inventor： Andrew M. Wilds , Craig O. Shott , Thomas Sanderson
Abstract: An EO/IR optical imaging system comprises collection optics to collect light from a scene into a collimated or near-collimated space. An imaging detector is positioned at the image plane and configured to integrate incident light (radiant flux or photons) over an image frame and readout a sequence of pixelated images at a frame rate, said detector exhibiting a saturation threshold. To prevent saturation of the imaging detector, a MEMS MMA is positioned in the collimated or near-collimated space. A secondary detector (via a pick-off) samples light from the collimated or near-collimated space multiple times per image frame. A controller responsive to the sampled light commands a percentage of the mirrors to re-direct light incident on those mirrors to a light dump and commands the remaining mirrors to re-direct light incident on those mirrors to the imaging detector. Together the mirrors adjust a fraction of light reaching the imaging detector such that the integrated incident light for a given image frame is less than the saturation threshold.
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公开(公告)号：US20230058098A1
公开(公告)日：2023-02-23
申请号：US17405260
申请日：2021-08-18
Applicant: Raytheon Company
Inventor： Thomas Sanderson
Abstract: An optics system includes a convex catching mirror located within respect to the concave primary mirror to form an optical path for a field of view. A conical volume is formed with respect to the concave primary mirror and the convex catching mirror, the optical path not obstructed by the conical volume. A component within the conical volume.
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