Zoom lens
US8320053B2 · kind B2 · utility
4Cited by
0References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 26, 2010 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Jan 29, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B15/143105
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A zoom lens including, in a sequence from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a succeeding lens group having an overall positive refractive power, and having a high zoom magnification and a compact size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.