发明授权
- 专利标题: Flash photography system
- 专利标题(中): 闪光摄影系统
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申请号: US279042申请日: 1988-12-02
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公开(公告)号: US4939534A公开(公告)日: 1990-07-03
- 发明人: Nobuyuki Taniguchi , Masaaki Nakai , Takanobu Omaki , Hiroshi Hosomizu , Masatake Niwa , Toru Inoue , Minoru Sekida
- 申请人: Nobuyuki Taniguchi , Masaaki Nakai , Takanobu Omaki , Hiroshi Hosomizu , Masatake Niwa , Toru Inoue , Minoru Sekida
- 申请人地址: JPX Osaka
- 专利权人: Minolta Camera Kabushiki Kaisha
- 当前专利权人: Minolta Camera Kabushiki Kaisha
- 当前专利权人地址: JPX Osaka
- 优先权: JPX57-186640 19821022; JPX57-190996 19821029; JPX57-219565 19821214
- 主分类号: G03B7/091
- IPC分类号: G03B7/091 ; G03B7/16
摘要:
A flash photography system which comprises a photographic camera and an electronic flash device;said photographic camera comprisingaperture value output means for producing aperture value under the flash light photographing,flash light stop signal output means for integrating output value of a light value of a photographing object and for producing a signal for stopping emission of a flash light when the integrated value reaches a predetermined value,said flash device comprisingcalculating means for calculating a maximum photographing distance which is covered by the flash light for effecting a correct exposure on the photographing object on the basis of a maximum light value of the flash light and the aperture value fed from the aperture value output means, anddisplay means for displaying the maximum photographing distance on the basis of the output of the calculating means.
公开/授权文献
- US4398874A Gear ring pump 公开/授权日:1983-08-16