Imaging lens and imaging apparatus equipped with the imaging lens
US9709778B2 · kind B2 · utility
0Cited by
5References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 24, 2015 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Oct 20, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/0045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An imaging lens is constituted by, in order from the object side to the image side: a negative front group; a stop; and a positive rear group. The front group is constituted by, in order from the object side to the image side, a front group negative lens group, constituted by at least two negative lenses, and a front group positive lens group including one negative lens and one positive lens, in which a positive lens is provided most toward the object side. The rear group includes one negative lens and one positive lens. Conditional Formula (1) below is satisfied:Nan+0.01·νan<2.15 (1)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.