发明名称 Electronic flash apparatus adjusting a light distribution field angle and camera provided with the same
摘要 To provide a flash apparatus and a camera provided with the same which can carry out more appropriate adjustment of the light distribution field angle. An electronic flash apparatus with a variable light distribution field angle wherein the light distribution field angle is determined according to a focal length of a photographic lens and a photographic region on an imaging area, comprising a plurality of light distribution field angles corresponding to one combination of one of the focal length and one of the photographic region, and one light distribution field angle is selectable from among the plurality of light distribution field angles.
申请公布号 US8233080(B2) 申请公布日期 2012.07.31
申请号 US20090453663 申请日期 2009.05.18
申请人 YANAI JUNICHI;MATSUI HIDEKI;NIKON CORPORATION 发明人 YANAI JUNICHI;MATSUI HIDEKI
分类号 H04N5/262;H04N5/222 主分类号 H04N5/262
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