Camera lens group including seven lenses of +−+−++−, +−++++− or +−++−+− refractive powers
US11988814B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2021 |
| Grant date | May 21, 2024 |
| Priority date | — |
| Expiry date | Nov 17, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present disclosure discloses a camera lens group including, sequentially from an object side to an image side along an optical axis, a stop; a first lens having positive refractive power; a second lens having negative refractive power; a third lens having positive refractive power; a fourth lens having refractive power; a fifth lens having refractive power; a sixth lens having positive refractive power; and a seventh lens having negative refractive power. An aperture number Fno of the camera lens group satisfies: Fno≤1.53. A distance TTL along the optical axis from an object-side surface of the first lens to an imaging plane of the camera lens group and half of a diagonal length ImgH of an effective pixel area on the imaging plane of the camera lens group satisfy: TTL/ImgH≤1.31.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.