Zoom lens and image pickup apparatus having the same
US12360349B2 · kind B2 · utility
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22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2022 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Sep 8, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B15/177
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A zoom lens includes a plurality of lens units. The plurality of lens units consist of, in order from an object side to an image side, a first lens unit having a negative refractive power, a middle group including one or more lens units, and a final lens unit having a negative refractive power. Each distance between adjacent lens units changes during zooming. The first lens unit includes at least three negative lenses. Predetermined conditions are satisfied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.