Reconnaissance lens used for unmanned aerial vehicles

摘要

An unmanned aircraft reconnaissance lens, comprising: a first lens, a second lens, a third lens, a fourth lens and a fifth lens successively coaxially grouped along a transmission direction of incident light; wherein the first lens is a biconvex lens, the second lens is a biconcave lens, the third lens is a meniscus lens, the fourth lens is a meniscus lens, and the fifth lens is a meniscus lens; wherein the first lens is adhered to the second lens and the fourth lens is adhered to the fifth lens; wherein the first lens has a first surface and a second surface, the second lens has a third surface and a fourth surface, the third lens has one fifth surface and a sixth surface, the fourth lens has a seventh surface and an eighth surface, and the fifth lens has a ninth surface and a tenth surface; the first surface to the tenth surface are successively arranged along the transmission direction of the incident light, wherein radii of curvature of the first surface to the tenth surface are respectively 112 mm, -150 mm, -150 mm, 250 mm, 64 mm, 150 mm, -31 mm , -60mm, -60mm and -50mm, with thicknesses in the center of the first lens to the fifth lens being 12mm, 4mm, 8mm, 2mm and 4mm, respectively.