Optical camera lens
US9964739B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 26, 2017 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Jan 27, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is an optical camera lens, including: a first lens having negative refraction power, a second lens having positive refraction power, an aperture, a third lens having positive refraction power, a fourth lens having negative refraction power, a fifth lens having positive refraction power and a sixth lens having negative refraction power; a focal length of the integral optical camera lens is f, a focal length of the first lens is f1, a focal length of the second lens is f2, a focal length of the third lens is f3, a focal length of the fourth lens is f4, a focal length of the fifth lens is f5 and a focal length of the sixth lens is f6, which satisfy following relational expressions: −2.5<f1/f<−1.0, 2.7<f2/f<2.2, 1<f3/f<2, −3.1<f4/f<−1.2, 0.98<f5/f<1.1, −2.4<f6/f4<−1.9. The optical camera lens provided by the present disclosure has excellent optical characteristics and structural length at the same time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.