Optical imaging lens including seven lenses of +−−−++− or +−+−++− refractive powers
US12032135B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2021 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | Dec 27, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical imaging lens includes a first lens element to a seventh lens element, and each lens element has an object-side surface and an image-side surface. The periphery region of the image-side surface of the first lens element is concave, the second lens element has negative refracting power, the periphery region of the image-side surface of the third lens element is convex, the fourth lens element has negative refracting power, the sixth lens element has positive refracting power, and the optical axis region of the image-side surface of the seventh lens element is concave. Lens element of the optical imaging lens are only the seven lens elements described above to satisfy the following conditions (G56+T6)/(G12+T2)≥3.500 and ν6+ν7≤100.000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.