Imaging device capable of reducing power consumption

Details Imaging device capable of reducing power consumption Imaging device capable of reducing power consumption

2007-08-28

2010-12-21

Ometz, David L (Department: 2622)

Television

Camera, system and detail

Optics

Reexamination Certificate

active

07855745

ABSTRACT:
An electronic camera is provided with a power-saving S-AF mode and a C-AF mode as focus adjustment modes. In the S-AF mode, focus adjustment is performed upon half depression of a release button. In the C-AF mode, the focus adjustment is repeated during a shooting mode regardless of the half depression of the release button to simplify the focus adjustment of a shooting time so that shooting is smoothly performed. When the electronic camera is set to the shooting mode, an AF controller obtains an Ev value representing subject brightness. The Ev value is compared with a threshold value stored in a memory. When the Ev value exceeds the threshold value, the focus adjustment mode is changed to the S-AF mode. When the Ev value falls below the threshold value, the focus adjustment mode is changed to the C-AF mode.

REFERENCES:
patent: 2005/0185064 (2005-08-01), Ogawa
patent: 8-75984 (1996-03-01), None
patent: 2003-5024 (2003-01-01), None
patent: 2003-295039 (2003-10-01), None

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