Lens barrel and imaging apparatus
US9513462B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2014 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Aug 22, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/102
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The lens barrel includes a stationary tube, a cam ring, and a rectilinear motion tube. The rectilinear motion tube is moved by the rotation of the cam ring in the optical axis direction. A lens frame holding a lens is moved by a driving unit (feed screw and a motor) in the optical axis direction. The stationary tube includes a main guide bar in the optical axis direction. The rectilinear motion tube includes another main guide bar in the optical axis direction. The lens frame includes first and second fitting portions slidably supported by the main guide bars in the optical axis direction, and the first and second fitting portions are disposed separately in the optical axis direction, and the main guide bars are disposed in different positions around the optical axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.