Imaging lens and imaging apparatus
AssigneeFUJIFILM Corporation
InventorsTakashi Suzuki, Michio Cho
Life of this patent
Estimating the term…
Abstract
The imaging lens consists of, in order from the object side, a first positive lens group, a stop, a second positive lens group, and a third negative lens group. The first lens group includes a negative lens which has a concave surface on the image side, and two positive lenses which are disposed to be closer to the image side than the negative lens and which have respective convex surfaces on the object side, convex surfaces on the object side. The second lens group includes an aspheric lens, and two sets of cemented lenses disposed to be closer to the image side than the aspheric lens. The third lens group consists of one lens component.
Claims20
An imaging lens consisting of, in order from an object side to an image side:
- a first lens group having a positive refractive power;
- a stop;
- a second lens group having a positive refractive power;
- and a third lens group having a negative refractive power,
- wherein the first lens group includes a negative lens which has a concave surface on the image side, and two positive lenses which are disposed to be closer to the image side than the negative lens and which have respective convex surfaces on the object side,
- wherein the second lens group includes an aspheric lens, and two sets of cemented lenses disposed to be closer to the image side than the aspheric lens, and
- wherein the third lens group consists of one lens component.
Dependencies are inferred from the claim text.