Miniature image pickup lens
US8717689B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 21, 2012 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Apr 19, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/0045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A miniature image pickup lens includes a first lens, a second lens, a third lens, an aperture, a fourth lens, and a fifth lens in sequence along an optical axis from an object side to an image side. The first lens is a meniscus lens with negative refractive power and has a convex side facing the object side. The first lens has at least an aspheric side. The second lens is a biconvex lens with positive refractive power. The third lens is a biconcave lens with negative refractive power. The fourth lens is a biconvex lens with positive refractive power and has at least an aspheric side. The fifth lens has a negative refractive power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.