Patent ID: 8941928
Filing Date: 2015-01-27
Classification: G02B

Abstract:
1. An imaging lens substantially consisting of six lenses, including; a first lens having a positive refractive power and a convex surface that faces an object side; a second lens having a negative refractive power, which is a meniscus lens having a convex surface toward the object side; a third lens having a positive refractive power; a fourth lens having a positive refractive power; a fifth lens having a negative refractive power and a concave surface that faces the object side; and a sixth lens having a negative refractive power, which is of an aspherical shape having a surface which is concave toward an image side in the vicinity of an optical axis and convex toward the image side at the peripheral portion thereof; in this order from the object side; and satisfying the following conditional formula: wherein f is the focal length of the entire system, and f6 is the focal length of the sixth lens.