Patent ID: 10422977

Abstract:
A reconnaissance objective lens used for an unmanned aircraft, the reconnaissance objective lens comprising a first lens (L1), a second lens (L2), a third lens (L3), a fourth lens (L4) and a fifth lens (L5) successively and coaxially arranged along the transmission direction of incident light rays. The first lens (L1) is a biconvex lens, the second lens (L2) is a biconcave lens, the third lens (L3) is a meniscus lens, the fourth lens (L4) is a meniscus lens, and the fifth lens (L5) is a meniscus lens. The first lens (L1) and the second lens (L2) are glued to one another, and the fourth lens (L4) and the fifth lens (L5) are glued to one another. By using the rational configuration of the first to fifth lenses (L1-L5) having positive and negative optical power, the reconnaissance objective lens used for an unmanned aircraft effectively solves the technical problem of it being difficult for current reconnaissance objective lenses for unmanned aircraft to achieve a large field of view, high resolution and low distortion.