Patent ID: 9285567
Filing Date: 2016-03-15
CPC Classification: G02B

Claim Text:
1. An imaging lens, substantially consisting of a front group, a stop, and a rear group disposed in order from the object side, wherein: the first and the second lenses from the object side in the front group are a negative meniscus lens with a convex surface on the object side and a negative lens respectively; the first and the second lenses from the image side in the front group are both positive lenses; the first and the second lenses from the object side in the rear group are a positive lens and a negative lens respectively; the rear group includes one or more lenses on the image side of the second lens from the object side, the one or more lenses being both positive lenses; and the imaging lens satisfies a conditional expression (1) given below: where 2ω: maximum total angle of view when an object at infinity is in focus.