Camera body with which various flash devices can be interchangeably used
US8218069B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2009 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Aug 9, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/74
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The camera body includes an imaging element, a hot shoe, an internal light source, and a camera controller. The imaging element is configured to convert an optical image of the subject into an electrical signal, and is configured to produce image data for the subject. The hot shoe allows the flash device to be mounted. The internal light source is arranged to shine light on the subject. The camera controller is configured to calculate an evaluation value on the basis of the image data produced by the imaging element, and is configured to perform video autofocusing on the basis of the evaluation value. The camera controller controls the imaging element and the internal light source so that when the camera controller decides that the auxiliary light is needed, and the camera controller decides that the flash device mounted to the hot shoe has an external auxiliary light source arranged to emit near infrared light, the internal light source emits light during the video autofocusing and the image data is acquired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.