Lens device
US7403342B2 · kind B2 · utility
3Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 23, 2006 |
| Grant date | Jul 22, 2008 |
| Priority date | — |
| Expiry date | Oct 23, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lens device comprises: at least one driven member including an optical system and a lens frame holding the optical system; a plurality of guides that guide the driven member in a direction of an optical axis; a driving frictional member frictionally engaged with the driven member; and an electro-mechanical conversion member connected to the driving frictional member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.