Zoom lens, optical apparatus equipped therewith and method for manufacturing the zoom lens
US8416506B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 19, 2010 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Jan 5, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B15/145121
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A zoom lens ZL installed in an electronic still camera 1 includes a first lens group G1 having positive refractive power disposed to the most object side, a second lens group G2 disposed to an image side of the first lens group G1, and a Gn lens group having positive refractive power disposed to the most image side. Upon zooming, the first lens group G1 and the Gn lens group are fixed. Upon focusing, at least one lens group disposed between the second lens group G2 and the Gn lens group are moved as a focusing lens group Gf. With this lens configuration, it becomes possible to provide a zoom lens having an optical property capable of coping with a vibration reduction, and an optical apparatus equipped therewith, and a method for manufacturing the zoom lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.