发明授权
- 专利标题: Electronic flash lighting device for camera
- 专利标题(中): 照相机电子闪光照明装置
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申请号: US410659申请日: 1989-09-21
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公开(公告)号: US5006879A公开(公告)日: 1991-04-09
- 发明人: Tadao Takagi , Toshihiro Sato
- 申请人: Tadao Takagi , Toshihiro Sato
- 申请人地址: JPX Tokyo
- 专利权人: Nikon Corporation
- 当前专利权人: Nikon Corporation
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX63-238976 19880926
- 主分类号: G03B7/16
- IPC分类号: G03B7/16 ; G03B7/28 ; G03B15/05
摘要:
An electronic flash lighting device for a camera comprises a first light measuring device for measuring the brightness of a field to be photographed, prior to flash emission, and a second light measuring device for measuring the brightness of a plurality of divided areas of the field during flash emission and producing a corresponding plurality of signals. These signals are weighted in accordance with the measurement performed by the first light measuring device, and the flash emission is stopped in accordance with the weighted signals.
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