Lens unit and compact image pickup module
US7221524B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2005 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | May 4, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/80
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The compact image pickup module includes an imaging lens, a lens-barrel holding the imaging lens, an image pickup element, an image pickup element holder holding the pickup element and into which the barrel is fitted so as to be rotatable about an optical axis of the imaging lens and movable in a direction of the optical axis, a cylindrical cam having as an upper or a lower surface thereof, an annular cam surface whose center is set at the optical axis and being formed in one of the barrel and the element holder and an abutment member being abutted against the cam surface under a state where the barrel is fitted into the element holder and formed in the other. After focusing is performed through relative rotation of the barrel and the element holder, the barrel and the element holder are fixed to each other. The lens unit includes the barrel and the imaging lens having multiple lenses held by the barrel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.