Lens control apparatus
US6184932A · kind A · utility
11Cited by
5References
57Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 14, 1996 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Mar 14, 2016 |
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.