Imaging lens and imaging apparatus equipped with the imaging lens
US9423595B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2015 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Apr 26, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B9/64
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An imaging lens is essentially constituted by seven lenses, including: a positive first lens having a convex surface toward the object side; a second lens, of which at least one surface is of an aspherical shape; a third lens, of which at least one surface is of an aspherical shape; a fourth lens, of which at least one surface is of an aspherical shape; a positive fifth lens of a meniscus shape with a convex surface toward the image side; a sixth lens, of which at least one surface is of an aspherical shape; and a negative seventh lens having a concave surface toward the image side, provided in this order from the object side. The imaging lens satisfies a predetermined conditional formula.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.