Optical imaging system
US12276776B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2021 |
| Grant date | Apr 15, 2025 |
| Priority date | — |
| Expiry date | May 21, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Embodiments of the present disclosure provide an optical imaging system that comprising, sequentially from an object side to an image side of the optical imaging system along an optical axis: a first lens having a negative refractive power; a second lens having a refractive power, the image side surface of the second lens is a convex surface; a stop; a third lens having a refractive power; a fourth lens having a negative refractive power; a fifth lens having a refractive power; a sixth lens having a refractive power; and a seventh lens having a positive refractive power. A half of a maximal field-of-view Semi-FOV of the optical imaging system satisfies: Semi-FOV≥55°; and a distance TTL from an object side surface of the first lens to an imaging plane of the optical imaging system along the optical axis of the optical imaging system and a half of a diagonal length ImgH of an effective pixel area on an imaging plane of the optical imaging system satisfy: 3.0<TTL/ImgH<3.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.