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NIGHT VIEW SHOOTING DEVICE FOR CAMERA

机译:相机夜景拍摄装置

摘要

PURPOSE:To shoot a night view by exposing for a specific long time even if the longest exposing time is limited with an automatic exposure control by providing a release control means for releasing a shutter in a specific exposing time for night view shooting in preference to be exposing time under the automatic exposure control when an external world is darker than a specific luminance at the time of requiring a distant view shooting. CONSTITUTION:The title device is provided with a brightness discrimination means for discriminating whether or not the external world is darker than the specific luminance and the release control means for releasing the shutter in the specific exposing time for night view shooting in preference to the exposing time under the automatic exposure control when the external world is darker than the specific luminance at the time of requiring the distant view shooting. Namely, since a photographic lens is set so that infinity is an optimum focusing distance and a specific long exposing time is set by requiring the distant view shooting when the external world is darker than the specific luminance, the night view shooting can be accomplished even if the longest exposing time is limited with the automatic exposure control.
机译:目的:即使在最长的曝光时间受到自动曝光控制限制的情况下,也可以通过在特定的长时间内曝光来拍摄夜景,方法是提供一种释放控制装置,以便在特定的曝光时间内释放快门,以便优先进行夜景拍摄。当需要远景拍摄时外部环境比特定亮度更暗时,在自动曝光控制下的曝光时间。组成:标题装置配备有亮度判别装置,用于辨别外部世界是否比特定亮度暗;释放控制装置,用于在特定的曝光时间内释放快门以供夜间拍摄时优先于曝光时间使用当需要远景拍摄时外部环境比特定亮度暗时,在自动曝光控制下进行拍摄。即,由于设置了摄影镜头以使得无穷大是最佳聚焦距离,并且当外部世界比特定亮度更暗时通过要求远景拍摄来设置特定的长曝光时间,因此即使自动曝光控制可限制最长的曝光时间。

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