发明名称 |
Diaphragm value recognition |
摘要 |
A method for determining the current camera aperture (working aperture) of lenses on digital cameras having a viewfinder eyepiece and internal exposure measurement through the lens is wherein a further external exposure measurement is carried out past the lens and the value of the working aperture is determined from a reference table stored in the digital camera from the difference &Dgr;BV between the two measured exposure values BV(int) and BV(ext). A digital camera suitable for carrying out the method wherein outside the region covered by the lens tube, the housing of the digital camera has an additional window for a further exposure meter with an upstream optics that is directed onto the subject and serves to restrict the shooting angle, and includes a memory for a reference table for determining the aperture value. |
申请公布号 |
US8269882(B2) |
申请公布日期 |
2012.09.18 |
申请号 |
US20070441256 |
申请日期 |
2007.09.11 |
申请人 |
KRANZ GERHARD;ZIELBERG OLIVER;LIES ULRICH;DENK ROBERT;LEICA CAMERA AG |
发明人 |
KRANZ GERHARD;ZIELBERG OLIVER;LIES ULRICH;DENK ROBERT |
分类号 |
G03B7/085;H04N5/238 |
主分类号 |
G03B7/085 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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