Optical imaging lens
US11054616B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2019 |
| Grant date | Jul 6, 2021 |
| Priority date | — |
| Expiry date | Jun 27, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical imaging lens includes a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element arranged in order from an object side to an image side along an optical axis. Each lens element has an object-side surface and an image-side surface. The object-side surface of the second lens element has a convex portion in a vicinity of the optical axis; the third lens element has negative refracting power, and the object-side surface of the third lens element has a convex portion in a vicinity of the optical axis; the image-side surface of the fourth lens element has a convex portion in a vicinity of the optical axis; the fifth lens element has negative refracting power; the seventh lens element has negative refracting power, and the object-side surface of the seventh lens element has a convex portion in a vicinity of the optical axis; and wherein an Abbe number of the first lens element is greater than a sum of an Abbe number of the second lens element and an Abbe number of the fifth lens element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.