Patent ID: 10534159

Abstract:
An imaging lens including order from an object side to an image side, a first lens having positive refractive power, a second lens having negative refractive power, a third lens being a double-sided aspheric lens, a fourth lens having a meniscus shape with a concave surface facing the object side near an optical axis, a fifth lens being a double-sided aspheric lens, and a sixth lens having the concave surface facing the image side near the optical axis, wherein the image-side surface of said sixth lens is an aspheric surface which changes to the convex surface at a peripheral portion, and a total track length is 6.0 mm or less and below conditional expressions (2) and (3) are satisfied: 20<νd 3<32  (2)20<νd 5<32  (3) where  νd3: abbe number at d-ray of the third lens  νd5: abbe number at d-ray of the fifth lens.