Imaging lens
US11841482B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2020 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | Feb 18, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An imaging lens includes a first lens with a negative refractive power, a second lens with a positive refractive power, a third lens with a positive refractive power and a fourth lens with a refractive power arranged in order from a first side to a second side, and an aperture stop is disposed between the first lens and the third lens. The first lens, the second lens, the third lens and the fourth lens are made from glass, a total number of lenses with refractive powers in the imaging lens is less than 5, the second lens and the third lens are aspheric glass lenses, and a full field of view of the imaging lens is greater than 120 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.