Imaging lens and imaging device provided with the same
US9335515B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2014 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | Sep 17, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B9/60
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An imaging lens with five lenses arranged as, in order from the object side, a first lens with a positive refractive power and a meniscus shape with a convex surface directed toward the object side, a second lens with a biconcave shape, a third lens with a negative refractive power and a meniscus shape with a convex surface toward the image side, a fourth lens with a positive refractive power, and a fifth lens with a negative refractive power, where an image-side surface of the fifth lens includes a concave surface and at least one inflection point, and a predetermined conditional expression is satisfied that achieves a high imaging performance from a central angle of view to a peripheral angle of view, while achieving reduction of an entire length of the lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.