Lens apparatus and image pickup apparatus including the same
US9628714B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 2013 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Dec 23, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/685
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A lens apparatus includes an optical system including multiple lens units, the optical system including: a first lens unit which is disposed closest to an object side in the optical system and is rotatable about a point in a vicinity of an optical axis of the optical system; and at least one lens unit which is movable in a direction including a component in a direction perpendicular to the optical axis. The following conditional expression is satisfied: 1.0<ft/|f1|<2.2, where ft represents a focal length of the optical system at a telephoto end, and f1 represents a focal length of the first lens unit. At least one of rotation of the first lens unit or movement of the at least one lens unit in the direction including the component in the direction perpendicular to the optical axis changes an image formation position in the direction perpendicular to the optical axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.