Super wide angle zoom lens
US11036035B2 · kind B2 · utility
1Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 2019 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | Jul 23, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/74
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A super wide angle zoom lens may include: a first lens having convex surfaces at an object side and an image side, and formed in a spherical shape; a second lens having a concave surface at the object side; a third lens having a convex surface at the image side; and a fourth lens having a convex surface at the object side and formed in a spherical shape, wherein the first to fourth lenses are sequentially arranged from the object side toward the image side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.