Optical lens and fabrication method thereof
US11112576B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2018 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Mar 28, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2011/0016
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
One embodiment of the invention provides an optical lens including a first lens group with at least two lenses, a second lens group with at least two lenses, and a parting line located between the first lens group and the second lens group. Each of the lenses of the first and the second lens groups is associated with a respective distance, the respective distance is a distance value measured along an optical axis between two focal points of two end points of an image circle diameter formed at an image plane of the optical lens, under the condition that an optical center of one of the lenses is shifted a distance away from the optical axis. The two lenses with the two largest distance values among all lenses are disposed on the same side of the parting line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.