The invention discloses a pinhole camera for a landing assisting optical system of a shipboard helicopter, and belongs to the field of landing assisting optics of shipboard helicopters. The device is composed of a six-piece type spherical lens group, an aperture diaphragm and a detector. The first lens and the second lens are combined to realize correction of field curvature in an optical system. The third lens, the fourth lens and the fifth lens are combined to improve distortion in the system. And the sixth lanthanide glass corrects the field curvature of the system again and receives the image on the seventh focusing imaging surface. The aperture diaphragm is located on the front surface of the fourth lens of the system so as to limit light entering the optical system. The two groups of infrared laser beacons on the helicopter body are tracked and shot through the infrared pick-up lenses on the two sides of the flight deck, so that the position of the shipboard helicopter is captured, and meanwhile, various aberrations of the system are corrected by distributing positive and negative focal power of each lens in the infrared optical system; and the landing-assisting optical imaging precision of the shipboard helicopter is improved.
本发明公开的一种用于舰载直升机助降光学系统的针孔相机,属于舰载直升机助降光学领域。本发明由六片式球面透镜组、孔径光阑以及探测器构成。第一片透镜与第二片透镜组合,实现对光学系统中场曲的校正。第三片透镜、第四片透镜、第五片透镜相结合,改善系统中的畸变。第六片镧系玻璃再次对系统的场曲校正,并在第七面聚焦成像面接收。孔径光阑位于系统的第四片透镜前表面处以实现对进入光学系统光线的限制。本发明通过飞行甲板两侧的红外摄像镜头对机身上的两组红外激光信标进行跟踪拍摄,实现对舰载直升机位置的捕捉,同时根据分配红外光学系统中各透镜的正负光焦度来实现对系统各项像差的校正,提高舰载直升机助降光学成像精度。
Pinhole camera for landing assisting optical system of shipboard helicopter
一种用于舰载直升机助降光学系统的针孔相机
2023-09-19
Patent
Electronic Resource
Chinese
IPC: | G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS |
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