Optical imaging lens
US11733476B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2020 |
| Grant date | Aug 22, 2023 |
| Priority date | — |
| Expiry date | Mar 10, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/0045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical imaging lens, sequentially including at least one lens element and an optical ring element from an object side to an image side along an optical axis, is provided. The optical ring element is located on a side of the lens element closest to the image side and facing the image side, and has an object-side bearing surface facing the object side and in contact with the closest lens element. The object-side bearing surface has an object-side outer periphery and an object-side inner periphery, and the object-side inner periphery is located between the optical axis and the object-side outer periphery. The object-side bearing surface has at least one groove, and the at least one groove extends to the object-side inner periphery along a radial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.