Camera body and flash device with compatibility determination of external auxiliary light source
US8810717B2 · kind B2 · utility
0Cited by
7References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 5, 2012 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Sep 18, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/673
- 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 camera controller is configured to calculate an evaluation value on the basis of the image data produced by the imaging element, and perform video autofocusing on the basis of the evaluation value. When the camera controller decides that the auxiliary light is needed, and 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.