Imaging lens

An imaging lens includes a first lens L1 having positive curvature radii on both an object side and an image side, a second lens L2 having a concave shape on both sides, and a third lens L3 having positive curvature radii on both the object side and the image side. The first to third lenses L1 to L3...

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Hauptverfasser: KUBOTA YOJI, KURIHARA ICHIRO
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An imaging lens includes a first lens L1 having positive curvature radii on both an object side and an image side, a second lens L2 having a concave shape on both sides, and a third lens L3 having positive curvature radii on both the object side and the image side. The first to third lenses L1 to L3 are arranged in this order from the object side toward the image side. When the first lens L1 has a focal length f1 and the second lens L2 has a focal length f2, the imaging lens is configured such that a relationship f1>|f2| is satisfied.