Lens drive unit
US7630151B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2005 |
| Grant date | Dec 8, 2009 |
| Priority date | — |
| Expiry date | Apr 6, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/001
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In the lens drive unit; the position retaining parts are advanced by rotating the position retaining member, which is held in the case body in such a manner as to become rotatable, in the R direction so that the position retaining parts are positioned just under the protrusion parts of the movable lens body, and eventually the movable lens body can be retained at the middle position. Furthermore, the through-holes are advanced by rotating the position retaining member in the R direction so that the through-holes are positioned just under the protrusion parts of the movable lens body, and eventually the protrusion parts loosely get fitted into the through-holes of the position retaining member to enable the body tube holder to move downward.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.