Zoom lens
US9720215B2 · kind B2 · utility
0Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2015 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Nov 27, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B15/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A zoom lens including first to seventh lens units arranged in this order from an object side to an image side is provided. The first to seventh lens units respectively have refractive powers of negative, positive, negative, positive, positive, negative. The first to seventh lens units are disposed along an optical axis of the zoom lens, and a distance between the seventh lens and the image side is fixed, and the first lens unit, the second lens unit, the third lens unit, the fourth lens unit, the fifth lens unit and the sixth lens unit are adapted to move along the optical axis between the object side and the image side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.