Patent ID: 8605370
Filing Date: 2013-12-10
Classification: G02B,Y10T

Abstract:
1. An imaging lens consisting of: a front lens group having negative refractive power disposed to the most object side; and a rear lens group disposed to an image side of the front lens group, the rear lens group including a sub-lens group having negative refractive power, at least a portion of the sub-lens group moving in a direction including a component substantially perpendicular to an optical axis, the sub-lens group including, in order from the object side, a first negative lens component having negative refractive power, a second negative lens component having negative refractive power, and a positive lens component having positive refractive power, the second negative lens component side lens surface of the first negative lens component being a concave surface facing the second negative lens component side, the second negative lens component having a concave surface facing the first negative lens component side, an antireflection coating being applied on at least one optical surface of the front lens group, and the antireflection coating including at least one layer formed by use of a wet process.