Lens device having a controller for controlling optical elements and photographing apparatus including the lens device
US7218849B2 · kind B2 · utility
2Cited by
1References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 29, 2005 |
| Grant date | May 15, 2007 |
| Priority date | — |
| Expiry date | Sep 22, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/102
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a lens device, when a lens is subjected to speed control and when initialization in which an absolute position of the lens is initialized after a power supply is turned on is completed, the lens is returned to a position before the lens is initialized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.