Optical imaging lens
US11815660B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2021 |
| Grant date | Nov 14, 2023 |
| Priority date | — |
| Expiry date | Dec 2, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B9/34
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical imaging lens includes a first lens element to a fourth lens element, and each lens element has an object-side surface and an image-side surface. The first lens element has negative refracting power, an optical axis region of the object-side surface of the first lens element is convex, the third lens element has negative refracting power, and an optical axis region of the image-side surface of the fourth lens element is convex. Lens elements included by the optical imaging lens are only the four lens elements described above, and the optical imaging lens satisfies the relationship of Tmax+Tmin≤700.000 μm, Tmax is a maximum thickness of the four lens elements from the first lens element to the fourth lens element along the optical axis, Tmin is a minimum thickness of the four lens elements from the first lens element to the fourth lens element along the optical axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.