Lens control apparatus, lens control method, and video camera having same
US6781633B2 · kind B2 · utility
2Cited by
5References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 19, 2000 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Aug 24, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/32
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A video camera having a variator lens and focus lens which calculates in-focus positions varying with the drive of the variator lens based on previously stored in-focus position data, and performs the calculation a plurality of times during a period of a vertical-synchronizing signal in an image signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.