Lens apparatus and image-taking apparatus including drive range limiting function having valid and invalid states
US7808547B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2004 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | Mar 7, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/66
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A drive control apparatus for a lens apparatus having a zoom lens movable between a telephoto end and a wide-angle end according to the present invention comprises a selecting member which selects a zoom position between the telephoto end and the wide-angle end, a controller which has a drive range limiting function of controlling drive of the zoom lens by using the selected zoom position as a drive end, and a drive range switch member which switches the drive range limiting function between an invalid state and a valid state. The controller drives the zoom lens to the drive end when the drive range limiting function is switched to the valid state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.