Invention Grant
- Patent Title: Camera with an exposure control function
- Patent Title (中): 具有曝光控制功能的相机
-
Application No.: US10660074Application Date: 2003-09-11
-
Publication No.: US06853806B2Publication Date: 2005-02-08
- Inventor: Koichi Nakata , Takahiro Doi , Osamu Nonaka
- Applicant: Koichi Nakata , Takahiro Doi , Osamu Nonaka
- Applicant Address: JP Tokyo
- Assignee: Olympus Optical Co., Ltd.
- Current Assignee: Olympus Optical Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Frishauf, Holtz, Goodman & Chick, P.C.
- Priority: JP2002-268732 20020913; JP2002-271816 20020918; JP2002-321314 20021105
- Main IPC: G03B7/08
- IPC: G03B7/08 ; G03B15/03 ; G03B15/05

Abstract:
A camera according to this invention includes a backlight judgment section which determines whether the photographic scene is against light by comparing the average luminance of the entire photographic screen obtained by photometry with the luminance of the main subject at a distance-measuring point selected by distance measurement. With the backlight judgment section, the camera performs suitable exposure control accompanied by illumination, such as supplementary light, at the time of exposure in a photographic scene where the main subject is against light.
Public/Granted literature
- US20040101296A1 Camera with an exposure control function Public/Granted day:2004-05-27
Information query