Zoom lens
US8693106B2 · kind B2 · utility
1Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 7, 2013 |
| Grant date | Apr 8, 2014 |
| Priority date | — |
| Expiry date | Feb 7, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B15/173
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A zoom lens includes sequentially from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, a fourth lens group having a positive refractive power, and a fifth lens group having a negative refractive power. The zoom lens satisfies given conditions to implement a compact, large aperture ratio zoom lens having excellent optical performance and compatible with solid state image sensors capable of recording full high vision images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.