Autofocus apparatus
US6700614B1 · kind B1 · utility
55Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 24, 1999 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Sep 24, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/673
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The autofocus apparatus determines a focus position according to a result of sampling an AF evaluated value and drives a lens system to the focus position. This autofocus apparatus further performs a flash in synchronism with a sampling timing of an AF evaluated value, and the light quantity of each flash is maintained substantially constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.