Shutter control device
US8678681B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 18, 2012 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Jun 18, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2206/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A shutter control device performs photography by operating a shutter housed in a lens barrel, and comprises a communication port, a shutter control unit and a memory. The communication port transmits and receives signals between the camera body and the lens barrel. The shutter control unit is provided in the camera body to output a shutter control signal. The memory is provided in the lens barrel to store shutter delay information regarding a time delay from when the shutter control signal is input to the lens barrel until when the shutter is closed. The shutter control unit receives the shutter delay information from the lens barrel and transmits the shutter control signal to the lens barrel through the communication port, ahead of an exposure time as determined by photometry, by an amount of time equal to the time delay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.