Camera lens assembly
US10962740B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2017 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Dec 24, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B9/64
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present disclosure discloses a camera lens assembly, the camera lens assembly having a total effective focal length f and an entrance pupil diameter EPD, and including 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. Each of the first lens and the sixth lens has a positive refractive power; each of the second lens, the third lens, the fifth lens and the seventh lens has a positive refractive power or a negative refractive power; and the fourth lens has a negative refractive power, an object-side surface of the fourth lens is a concave surface, and an image-side surface of the fourth lens is a convex surface. The total effective focal length f and the entrance pupil diameter EPD satisfy: f/EPD≤1.7.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.