Optical imaging lens assembly
US11169362B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2019 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | Nov 9, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/005
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present disclosure discloses an optical imaging lens assembly. The lens assembly sequentially includes, along an optical axis from an object side to an image side: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens, each of the first to seventh lenses having refractive powers. The first lens has a negative refractive power, an object-side surface of the first lens is a convex surface, and an image-side surface of the first lens is a concave surface; an image-side surface of the third lens is a concave surface; an object-side surface of the seventh lens is a concave surface; and a total effective focal length f of the optical imaging lens assembly, an effective focal length f4 of the fourth lens, and an effective focal length f5 of the fifth lens satisfy: |f/f4|+|f/f5|<1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.