Patent ID: 8379325
Filing Date: 2013-02-19
Classification: G02B

Abstract:
1. A photographing optical lens assembly comprising, in order from an object side to an image side: a first lens element with positive refractive power; a second lens element with negative refractive power having a concave object-side surface and a concave image-side surface; a third lens element with positive refractive power having a concave object-side surface and a convex image-side surface, the object-side surface and the image-side surface of the third lens element being aspheric, and the third lens element being made of plastic; a fourth lens element with negative refractive power having a concave object-side surface and a convex image-side surface, the object-side surface and the image-side surface of the fourth lens element being aspheric, and the fourth lens element being made of plastic; and a fifth lens element, the object-side surface and the image-side surface of the fifth lens element being aspheric, and the fifth lens element being made of plastic; an air distance existing between the first lens element and the second lens element, the photographing optical lens assembly satisfying the following condition: wherein f is the focal length of the photographing optical lens assembly; f