Wide-angle camera lens
US10705322B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2017 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Nov 16, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a wide-angle camera lens consisting of seven lens elements. The wide-angle camera lens successively includes: a first optical lens with negative refractive power; a second optical lens with negative refractive power; a third optical lens with negative refractive power, an image side surface of the third optical lens being a convex surface; a fourth optical lens with refractive power; a fifth optical lens with refractive power; a sixth optical lens with refractive power; and a seventh optical lens with refractive power from an object side to an image side, wherein −5.5<f1/f<−2; −2.5<f5/f6<−0.5; f1 is an effective focal length of the first optical lens, f is an effective focal length of the wide-angle camera lens, f5 is an effective focal length of the fifth optical lens, and f6 is an effective focal length of the sixth optical lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.