Optical imaging system
US12196920B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2019 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Nov 30, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical imaging system includes sequentially from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens has a refractive power. The second lens has a refractive power, an object-side surface of the second lens is a concave surface, and an image-side surface of the second lens is a convex surface. The third lens has a refractive power. The fourth lens has a negative refractive power. The fifth lens has a positive refractive power, and an object-side surface of the fifth lens is a convex surface. The sixth lens has a negative refractive power. The seventh lens has a refractive power. 44°≤HFOV<55°, HFOV being a half of a maximum field of view of the optical imaging system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.