Fisheye lens system and photographing apparatus
US8638507B2 · kind B2 · utility
0Cited by
2References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 4, 2011 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Nov 4, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fisheye lens system and a photographing apparatus including the fisheye lens system. The fisheye lens system includes, in an order from an object to an image, a first lens group including at least three lenses and having negative refractive power; and a second lens group having positive refractive power, wherein the at least three lenses included in the first lens group include a first lens, a second lens, and a third lens, in the order from the object to the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.