Imaging lens and imaging apparatus provided with the imaging lens
US8749896B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 6, 2013 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | Nov 6, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An imaging lens substantially consisting of six lenses, composed of a first lens having a positive refractive power and a convex surface on the object side, a second lens having a negative refractive power and a concave surface on the image side, a third lens having a positive refractive power and a convex surface on the object side, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power and a concave surface on the image side, and a sixth lens having a negative refractive power with the image side surface having an aspherical shape which is concave on the image side near the optical axis and convex in a peripheral region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.