Camera having focus detection device
US5692222A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1995 |
| Grant date | Nov 25, 1997 |
| Priority date | — |
| Expiry date | Nov 2, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2213/025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A focus adjusting apparatus which includes a focus detection device for independently detecting focus states of N different regions in a scene. The apparatus includes a selection circuit and a focus adjustment circuit. The selection circuit simultaneously selects, among the N regions, an arbitrary number of regions, the arbitrary number being less than N, and the selection circuit setting, among the N regions which are all selectable, a first number and a second number, different from the first number, of regions as regions simultaneously selected. The focus adjustment circuit performs focus adjustment on the basis of the focus states independently detected in the regions set by the selection circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.