Focus control device, focus control method and storage medium
US10498959B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2019 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Mar 12, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/959
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A CPU acquires a first focal position where a photographic subject is in focus by following a predetermined control rule, performs first control processing of controlling the motor such that the focus lens stops at the first focal position, and performs second control processing of controlling the motor such that the focus lens stops at a second focal position different from the first focal position. The second focal position is a focal position where a user does not recognize that the photographic subject is out of focus in an output from the imaging apparatus, and power consumption for stopping the focus lens is lower than power consumption for driving the motor so as to stop the focus lens at the first focal position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.